JP7364924B2 - Area notification system - Google Patents

Description

Regarding area notification system.

As described in Patent Document 1 (Japanese Unexamined Patent Publication No. 2013-246702), a system is known that determines a workplace to be used by a building tenant so that the energy consumption of building equipment is reduced.

In conventional systems, it is not possible to perform control based on the overall operating efficiency of an air conditioning system that is installed across multiple areas and has multiple usage units.

The area notification system of the first aspect notifies a facility user of a first area that the user should use from among a plurality of areas within the facility. The facility is air-conditioned across a plurality of areas using a first air conditioning system in which a plurality of usage units are connected to one heat source unit. The area notification system includes a control unit. When the first air conditioning system is used in the facility, the control unit notifies the first area so that the power consumption of the first air conditioning system is reduced based on the installation information linking the usage unit and the area. do.

This area notification system can optimize the overall operating efficiency of an air conditioning system that performs air conditioning across multiple areas.

The area notification system according to the second aspect is the area notification system according to the first aspect, in which the control unit controls the area notification system according to the first aspect so that the power consumption of the first air conditioning system is reduced based on the usage status of the facility by the user. Notify one area.

This area notification system can optimize the overall operating efficiency of an air conditioning system that provides air conditioning across multiple areas in real time.

The area notification system of the third aspect is the area notification system of the first aspect or the second aspect, and the facility is air-conditioned using only the first air conditioning system. The control unit controls the first air conditioning system based on at least one of installation information of the first air conditioning system, layout information of the facility, operation information of the first air conditioning system, usage status of the facility by users, and environmental information of the facility. At least one of the system processing load, refrigeration efficiency, equipment efficiency, heat transfer efficiency, and outside air introduction rate is calculated. The control unit derives operation information of the plurality of usage units based on the calculation result so that the power consumption of the first air conditioning system is reduced. The control unit selects a usage unit to be operated from among the plurality of usage units based on the derived operation information. The control unit notifies the first area based on the selected usage unit.

This area notification system can optimize the overall operating efficiency of an air conditioning system that performs air conditioning across multiple areas based on the processing load, refrigeration efficiency, and equipment efficiency of the air conditioning system.

The area notification system of the fourth aspect is the area notification system of the first aspect or the second aspect, in which the facility is air-conditioned across multiple areas using multiple air conditioning systems including the first air conditioning system. . The control unit notifies the first area when using a plurality of air conditioning systems.

This area notification system can optimize the overall operating efficiency of multiple air conditioning systems that perform air conditioning across multiple areas.

The area notification system according to the fifth aspect is the area notification system according to the fourth aspect, in which the control unit includes installation information of each of the plurality of air conditioning systems, layout information of the facility, operation information of each of the plurality of air conditioning systems, and usage information. At least one of the processing load, refrigeration efficiency, equipment efficiency, and heat transfer efficiency of each of the plurality of air conditioning systems is calculated based on at least one of usage status of the facility by a person and environmental information of the facility. The control unit notifies the first area based on the calculation result.

This area notification system can optimize the overall operating efficiency of multiple air conditioning systems that perform air conditioning across multiple areas.

The area notification system according to the sixth aspect is the area notification system according to the fourth or fifth aspect, in which the control unit controls the first area so that the total power consumption of each of the plurality of air conditioning systems is small. Notice.

This area notification system can optimize the overall operating efficiency of multiple air conditioning systems that perform air conditioning across multiple areas.

The area notification system according to the seventh aspect is the area notification system according to any one of the fourth to sixth aspects, in which the control unit changes the number of usage units operating in each of the plurality of air conditioning systems. The operating units are selected so that the number of air conditioning systems having operating units is small. The control unit notifies the first area based on the selected usage unit.

This area notification system can optimize the overall operating efficiency of multiple air conditioning systems that perform air conditioning across multiple areas.

The area notification system according to the eighth aspect is the area notification system according to the seventh aspect, in which the control unit calculates the processing load of each of the plurality of air conditioning systems, and determines the maximum processing load that each of the plurality of air conditioning systems can tolerate. Select the operating unit within the range.

This area notification system can optimize the overall operating efficiency of multiple air conditioning systems that perform air conditioning across multiple areas based on the processing load of each air conditioning system.

The area notification system according to the ninth aspect is the area notification system according to the seventh or eighth aspect, in which the control unit calculates the equipment efficiency of each of the plurality of air conditioning systems, and calculates the equipment efficiency of each of the plurality of air conditioning systems. Select the operating unit so that the maximum value is achieved.

This area notification system can optimize the overall operating efficiency of a plurality of air conditioning systems that perform air conditioning across a plurality of areas based on the equipment efficiency of each air conditioning system.

The area notification system according to the tenth aspect is the area notification system according to any one of the fourth to sixth aspects, in which the control unit acquires environmental permissible information of the user and based on the acquired environmental permissible information. , the first area is notified so that users whose environmental tolerance information falls within a predetermined range use areas where the same air conditioning system is operated.

This area notification system can optimize the overall operating efficiency of multiple air conditioning systems that provide air conditioning across multiple areas based on the user's environmental tolerance level.

The area notification system according to the eleventh aspect is the area notification system according to the tenth aspect, in which the control unit controls the refrigerant temperature, supply air volume, air volume, and set temperature of the air conditioning system based on the user's environmental tolerance information. Adjust at least one of the following:

This area notification system can optimize the overall operating efficiency of multiple air conditioning systems that provide air conditioning across multiple areas based on the user's environmental tolerance level.

The area notification system according to the twelfth aspect is the area notification system according to the eleventh aspect, in which the control unit calculates the processing load of each of the plurality of air conditioning systems, and based on the processing load of each of the plurality of air conditioning systems, Adjust the refrigerant temperature or supply air amount for each of multiple air conditioning systems.

This area notification system can optimize the overall operating efficiency of multiple air conditioning systems that provide air conditioning across multiple areas based on the user's environmental tolerance level and the processing load of each air conditioning system. .

The area notification system according to the thirteenth aspect is an area notification system according to the eleventh or twelfth aspect, in which the control unit calculates the equipment efficiency of each of the plurality of air conditioning systems, and calculates the equipment efficiency of each of the plurality of air conditioning systems. Adjust the refrigerant temperature or air supply amount of each of the multiple air conditioning systems based on the range of constraints.

This area notification system can optimize the overall operating efficiency of multiple air conditioning systems that provide air conditioning across multiple areas based on the user's environmental tolerance level and the equipment efficiency of each air conditioning system. .

The area notification system according to the 14th aspect is the area notification system according to any one of the 10th to 13th aspects, and the environmental permissible information includes a temperature range, an air volume range, a time period, and a demand event that are permissible to the user. This is at least one of the conditions for participation.

This area notification system can optimize the overall operating efficiency of multiple air conditioning systems that provide air conditioning across multiple areas based on the user's environmental tolerance level.

The area notification system according to the fifteenth aspect is the area notification system according to any one of the fourth to sixth aspects, in which the control unit calculates the heat transfer efficiency of each of the plurality of air conditioning systems, and calculates the heat transfer efficiency of each of the plurality of air conditioning systems. Select operating units to maximize their heat transfer efficiency.

This area notification system can optimize the overall operating efficiency of a plurality of air conditioning systems that perform air conditioning across a plurality of areas based on the heat transfer efficiency of each air conditioning system.

The area notification system according to the sixteenth aspect is the area notification system according to any one of the fourth to sixth aspects, in which the control unit calculates the equipment efficiency of each of the plurality of air conditioning systems, and calculates the efficiency of each of the plurality of air conditioning systems. Select operating units to maximize equipment efficiency.

This area notification system can optimize the overall operating efficiency of a plurality of air conditioning systems that perform air conditioning across a plurality of areas based on the equipment efficiency of each air conditioning system.

1 is a schematic configuration diagram of an air conditioning management system 190 using an area notification system 100. FIG. It is a flowchart of processing performed by the area notification system 100. 2 is a diagram showing the usage status of the facility 10 before determining the usage method of the facility 10 based on the processing load of the air conditioning system 20. FIG. 3 is a diagram showing the usage status of the facility 10 after determining the usage method of the facility 10 based on the processing load of the air conditioning system 20. FIG. 3 is a diagram showing the usage status of the facility 10 before determining how to use the facility 10 based on the positions of areas A1 to A5. FIG. 3 is a diagram showing the usage status of the facility 10 after determining how to use the facility 10 based on the positions of areas A1 to A5. FIG. 3 is a diagram showing the usage status of the facility 10 before determining how to use the facility 10 based on the throughflow loads in areas A1 to A5. FIG. FIG. 3 is a diagram showing the usage status of the facility 10 after determining how to use the facility 10 based on the throughflow loads in areas A1 to A5. 2 is a diagram showing the usage status of the facility 10 before executing the process of changing the arrangement of the users U based on the refrigeration efficiency and equipment efficiency of the air conditioning system 20. FIG. 3 is a diagram showing the usage status of the facility 10 after executing a process of changing the arrangement of users U based on the refrigeration efficiency and equipment efficiency of the air conditioning system 20. FIG. 2 is a diagram illustrating the usage status of the facility 10 before executing a process of changing the arrangement of users U based on the refrigeration efficiency and equipment efficiency of the air conditioning system 20. FIG. 3 is a diagram illustrating the usage status of the facility 10 after performing a process of changing the arrangement of users U based on the refrigeration efficiency and equipment efficiency of the air conditioning system 20. FIG. 2 is a diagram illustrating the usage status of the facility 10 before executing the process of changing the arrangement of the users U based on the permissible air volume of the users U. FIG. 3 is a diagram illustrating the usage status of the facility 10 after performing a process of changing the arrangement of the users U based on the permissible air volume of the users U. FIG. 2 is a diagram illustrating the usage status of the facility 10 before executing the process of changing the arrangement of the users U based on the allowable temperature of the users U. FIG. 3 is a diagram illustrating the usage status of the facility 10 after performing a process of changing the arrangement of users U based on the allowable temperature of users U. FIG. 3 is a diagram showing the usage status of the facility 10 before executing the process of changing the arrangement of users U based on the number of operating indoor units 24. FIG. 3 is a diagram illustrating the usage status of the facility 10 after performing a process of changing the arrangement of users U based on the number of operating indoor units 24. FIG. 2 is a diagram illustrating the usage status of the facility 10 before executing the process of changing the arrangement of the users U based on the equipment efficiency of the air conditioning system 20. FIG. 2 is a diagram illustrating the usage status of the facility 10 after performing a process of changing the arrangement of users U based on the equipment efficiency of the air conditioning system 20. FIG. It is a graph showing the relationship between the operating efficiency COP of the outdoor unit 22 and the system load factor of the air conditioning system 20. It is a schematic block diagram of the air conditioning system 20 of 3rd embodiment. 2 is a diagram showing the usage status of the facility 10 before determining the usage method of the facility 10 based on the processing load of the air conditioning system 20. FIG. 3 is a diagram showing the usage status of the facility 10 after determining the usage method of the facility 10 based on the processing load of the air conditioning system 20. FIG. 3 is a diagram showing the usage status of the facility 10 before determining how to use the facility 10 based on the positions of areas A1 to A5. FIG. 3 is a diagram showing the usage status of the facility 10 after determining how to use the facility 10 based on the positions of areas A1 to A5. FIG. 3 is a diagram showing the usage status of the facility 10 before determining how to use the facility 10 based on the throughflow loads in areas A1 to A5. FIG. FIG. 3 is a diagram showing the usage status of the facility 10 after determining how to use the facility 10 based on the throughflow loads in areas A1 to A5. 3 is a diagram showing the usage status of the facility 10 before executing the process of changing the placement of the users U based on the duct resistance of the VAV 125 in areas A1 to A5. FIG. FIG. 3 is a diagram showing the usage status of the facility 10 after executing a process of changing the placement of users U based on the duct resistance of the VAV 125 in areas A1 to A5. 3 is a diagram showing the usage status of the facility 10 before executing the process of changing the arrangement of users U based on the outside air introduction rate of areas A1 to A3. FIG. 3 is a diagram showing the usage status of the facility 10 after executing a process of changing the arrangement of users U based on the outside air introduction rate of areas A1 to A3. FIG. 2 is a diagram illustrating the usage status of the facility 10 before executing the process of changing the arrangement of the users U based on the allowable temperature of the users U. FIG. 3 is a diagram illustrating the usage status of the facility 10 after performing a process of changing the arrangement of users U based on the allowable temperature of users U. FIG. 2 is a diagram illustrating the usage status of the facility 10 before executing the process of changing the arrangement of the users U based on the equipment efficiency of the air conditioning system 20. FIG. 2 is a diagram illustrating the usage status of the facility 10 after performing a process of changing the arrangement of users U based on the equipment efficiency of the air conditioning system 20. FIG. It is a diagram showing the usage status of the facility 10 before executing the process of changing the arrangement of the users U based on the lift of the pump. It is a diagram showing the usage status of the facility 10 after executing the process of changing the arrangement of the users U based on the lift height of the pump. 2 is a diagram illustrating the usage status of the facility 10 before executing the process of changing the arrangement of the users U based on the equipment efficiency of the air conditioning system 20. FIG. 2 is a diagram illustrating the usage status of the facility 10 after performing a process of changing the arrangement of users U based on the equipment efficiency of the air conditioning system 20. FIG. FIG. 7 is a diagram showing the usage status of the facility 10 before executing the process of changing the arrangement of users U in modification A. FIG. FIG. 7 is a diagram showing the usage status of the facility 10 after executing the process of changing the arrangement of users U in modification A. FIG. FIG. 7 is a diagram showing the usage status of the facility 10 before executing the process of changing the arrangement of users U in modification B. FIG. FIG. 7 is a diagram showing the usage status of the facility 10 after executing the process of changing the arrangement of users U in modification B. FIG.

-First embodiment-
(1) Overall configuration of area notification system 100 Area notification system 100 of this embodiment provides user U (U1, U2,...) of facility 10 with multiple areas A (A1, A2,...) within facility 10. ...), the area A that the user U should use is notified. As shown in FIG. 1, the area notification system 100 is used, for example, in an air conditioning management system 190. Air conditioning management system 190 mainly includes an area notification system 100 and one or more air conditioning systems 20. In this embodiment, the air conditioning management system 190 includes one air conditioning system 20.

One air conditioning system 20 for adjusting the air environment (temperature, humidity, air volume, etc.) of a plurality of areas A is installed in the facility 10. The air conditioning system 20 mainly includes a heat source unit 21, a utilization unit 23, and a centralized controller 26. The air conditioning system 20 includes one refrigeration cycle (refrigerant system) in which a plurality of utilization units 23 are connected to one heat source unit 21 . Therefore, in this embodiment, one refrigerant system is installed in the facility 10. In this embodiment, the heat source unit 21 is the outdoor unit 22, and the usage unit 23 is the indoor unit 24.

The air conditioning system 20 is a multi-air conditioner system in which a single outdoor unit 22 can control a plurality of indoor units 24 using a centralized controller 26 . The outdoor unit 22 has a compressor that compresses the refrigerant circulating in the refrigeration cycle of the air conditioning system 20. Area notification system 100 is connected to central controller 26 of air conditioning system 20 .

The facility 10 is a building or a part of a building in which the air environment of the interior space is adjusted by an air conditioning system 20. The facility 10 is, for example, an office, hospital, hotel, school, large store, research facility, or restaurant that occupies part or all of a building. The air conditioning system 20 air-conditions the facility 10 across multiple areas A within the facility 10.

One indoor unit 24 is installed in each area A within the facility 10. Area A within the facility 10 may be a space separated from other areas A by a wall or the like. For example, area A may be a relatively small room (such as a conference room) within facility 10. In this case, one indoor unit 24 is installed in a room consisting of only one area A.

Furthermore, multiple areas A within the facility 10 may be included in the same space. In a space including a plurality of areas A, the areas A are arranged so as not to overlap each other. For example, the space including the plurality of areas A may be a relatively large room (such as a lobby) within the facility 10. In this case, a plurality of indoor units 24 equal to the number of areas A are installed in a room consisting of a plurality of areas A.

The area notification system 100 is used by the guide (or manager) of the facility 10 to guide the user U to one predetermined area A. The area notification system 100 provides information regarding the area A that the user U of the facility 10 should use to the information staff of the facility 10, and the guide directs the user U to a predetermined area A based on the information. invite. In this case, the guide of the facility 10 guides the user U visiting the facility 10 to a predetermined area A, or guides the user U who is already using the predetermined area A to another area A. do. The user U may be one person or a group consisting of multiple users.

As shown in FIG. 1, the area notification system 100 mainly includes a control section 110, an input section 120, an output section 130, a setting section 140, and a storage section 150.

The control unit 110 is hardware that executes arithmetic processing to realize various functions of the area notification system 100. The control unit 110 realizes these functions by executing a predetermined program using predetermined data. The control unit 110 is, for example, an integrated circuit such as a CPU, ASI, or FPGA. The control unit 110 executes processing for determining how to use the facility 10. The usage method of the facility 10 is, for example, information regarding the area A that the user U of the facility 10 should use, and information regarding the control of the air conditioning system 20. The information regarding the control of the air conditioning system 20 includes operation information of the plurality of indoor units 24 of the air conditioning system 20. The operation information is, for example, information regarding the indoor unit 24 to be operated among the plurality of indoor units 24, and information regarding the set temperature, set humidity, set air volume, etc. of the indoor unit 24 installed in each area A.

The input unit 120 is hardware for inputting information used by the control unit 110 to determine how to use the facility 10. The input unit 120 is a network device for communicating with the facility terminal 30 and the like. The facility terminal 30 is a PC, a mobile terminal, or the like that is owned by the facility 10 and used by guides, managers, and the like of the facility 10 for business purposes.

The output unit 130 is hardware for outputting information included in the usage method of the facility 10 determined by the control unit 110. The output unit 130 is a network device for communicating with the facility terminal 30 and the like.

The setting unit 140 is hardware that outputs information included in the usage method of the facility 10 determined by the control unit 110 and transmits it to the central controller 26 of the air conditioning system 20. The setting unit 140 is, for example, a network device for communicating with the central controller 26 of the air conditioning system 20.

The storage unit 150 is hardware that stores programs executed by the control unit 110 and data used by the control unit 110 to determine how to use the facility 10. The storage unit 150 is, for example, an auxiliary storage device (RAM, HDD, SSD, etc.) for storing data input by the input unit 120 and data output by the output unit 130 and the setting unit 140.

As shown in FIG. 2, the area notification system 100 causes the control unit 110 to determine the usage method of the facility 10 using various information input into the input unit 120 from the outside, and determines the usage method of the facility 10. The information is output to the outside via the output section 130 and the setting section 140. Area notification system 100 permanently or temporarily stores programs and data used in these series of processes in storage unit 150.

(2) Input Information The area notification system 100 uses various data input to the input unit 120 in order to determine how to use the facility 10. Next, the main data input into the input unit 120 from the outside will be specifically explained.

(2-1) Building drawing information The building drawing information is mainly information regarding the building including the facility 10 and information regarding the space within the facility 10. Building drawing information is static information that is updated infrequently. Specifically, the building drawing information is information regarding the following items.

・Layout of the facility 10 ・Materials of walls, doors, windows, etc. of the facility 10 ・Internal heat generation amount of OA equipment installed in the facility 10 ・Ventilation amount of the facility 10 The layout of the facility 10 is, for example, a room in the facility 10. It includes the floor plan and the air-conditioned area (floor area) of each area A (room). The ventilation amount of the facility 10 includes, for example, the ventilation amount of each area A (room).

The building drawing information is input, for example, by a contractor of the facility 10 and an administrator of the area notification system 100 using the facility terminal 30 or the like. The administrator of the area notification system 100 is, for example, a sales person who proposes the installation of the area notification system 100 and an engineer who is in charge of installing the area notification system 100. The input building drawing information is stored in the storage unit 150.

(2-2) Equipment drawing information Equipment drawing information is mainly information regarding the installation of the air conditioning system 20 within the facility 10. Equipment drawing information is static information that is updated infrequently. In the case of a direct expansion air conditioning system 20 in which the indoor unit 24 exchanges heat between refrigerant and air in area A, which is an air-conditioned space, the equipment drawing information is specifically information regarding the following items.

- Refrigerant system - Refrigerant piping length - Arrangement of the outdoor unit 22 and indoor unit 24 - Performance characteristics of equipment such as the compressor of the outdoor unit 22 If only one air conditioning system 20 is used as in this embodiment, the refrigerant system Since there is only one, information regarding the refrigerant system is not used.

The information regarding the arrangement of the outdoor unit 22 and the indoor unit 24 includes installation information that links the indoor unit 24 and the area A in which the indoor unit 24 is installed. With this installation information, the indoor units 24 installed in each area A can be specified.

In addition, in the case of an indirect expansion type air conditioning system 20 that transfers a medium (air, water, etc.) that has undergone heat exchange with a refrigerant to area A, which is a space to be air-conditioned, the equipment drawing information specifically includes the following items: This is information regarding.

・Duct system ・Water piping system ・Performance characteristics of equipment such as the compressor of the outdoor unit 22 Facility drawing information is, for example, provided to the facility terminal 30 by the constructor of the air conditioning system 20 and the administrator of the area notification system 100. It is entered using The input equipment drawing information is stored in the storage unit 150.

(2-3) Weather Information Weather information is information regarding the environment of the area where the facility 10 is located. The weather information includes, for example, the temperature, humidity, amount of solar radiation, wind direction, and amount of air in the area where the facility 10 is located. The weather information is dynamic information that changes depending on the timing of input to the input unit 120. Weather information is automatically input from an external network 34 such as a weather forecast service, for example. The input weather information is stored in the storage unit 150. Depending on the process for determining how to use the facility 10, the data input to the input unit 120 may not include weather information.

(2-4) Operational Information Operational information is information regarding the usage status of the facility 10. The operational information is dynamic information that changes depending on the timing of input to the input unit 120. Specifically, the operational information is information regarding the following items.

・Environmental tolerance information of user U ・Usage information of user U ・Usage information of area A ・Operation information of air conditioning system 20 The environmental tolerance information of user U refers to the relevant information that user U in area A can tolerate. This is information regarding the temperature range, humidity range, and air volume range of area A. The user U's environmental tolerance information may be set for each time period. Moreover, the environmental permissible information of the user U may be information regarding demand event participation conditions. The demand event participation condition is a condition for user U to participate in demand control in a type of demand control in which user U can participate. Depending on the process for determining how to use the facility 10, the data input to the input unit 120 may not include the user U's environmental tolerance information.

The environmental permissible information of the user U is inputted by the user U using the facility terminal 30 or the like, for example. However, if the area notification system 100 is linked with the SNS system used by the user U, the input unit 120 may acquire the environmental permissible information of the user U via the SNS system. In this case, the user U logs into the SNS system with his or her own account and inputs his or her environmental permissible information, and the input unit 120 acquires the environmental permissible information input by the user U. Further, the user U may input his or her environmental permissible information using an application dedicated to the area notification system 100 installed on his or her mobile terminal. In this case, the input unit 120 acquires the environmental tolerance information input by the user U.

The usage information of the users U is real-time information regarding the area A used by each user U (information regarding the usage status of the facility 10, etc.). The usage information of area A is real-time information regarding the users U using each area A (the number of users U, purpose of use, etc.). The operation information of the air conditioning system 20 is real-time information regarding the control of the outdoor unit 22 and indoor unit 24 that are in operation (power consumption of the compressor, set temperature, set humidity, set air volume, etc. of area A). be. The usage information of the user U, the usage information of the area A, and the operation information of the air conditioning system 20 are automatically input from the central controller 26 of the air conditioning system 20, for example. The input operation information is stored in the storage unit 150.

(3) Output Information The area notification system 100 outputs various information included in the usage method of the facility 10 determined by the control unit 110 to the outside via the output unit 130 and the setting unit 140.

The information output to the outside via the output unit 130 is, for example, information regarding the area A (first area) that the user U of the facility 10 should use. This information is transmitted from the area notification system 100 to the facility terminal 30 and the like. Thereby, the guide of the facility 10 receives a notification from the area notification system 100 regarding how to use the facility 10. The guide of the facility 10 refers to the information transmitted from the output unit 130 and displayed on the screen of the facility terminal 30 and guides the user U to a predetermined area A that the user U should use. . Further, the information output to the outside via the output unit 130 may be transmitted to the user terminal 32 in addition to the facility terminal 30 or instead of the facility terminal 30. The user terminal 32 is a PC, a mobile terminal, etc. used by the user U of the facility 10. In this case, the user U receives a notification from the area notification system 100 regarding how to use the facility 10. The user U can refer to the information transmitted from the output unit 130 and displayed on the screen of the user terminal 32 and move to the predetermined area A that he/she should use.

The information output to the outside via the setting unit 140 is information used to control the air conditioning system 20, such as a control signal for the air conditioning system 20. The information outputted to the outside via the setting unit 140 includes, for example, information regarding the indoor unit 24 to be operated among the plurality of indoor units 24 of the air conditioning system 20, and settings for the indoor units 24 installed in each area A. Contains information on temperature, set humidity, set air volume, etc. This information is sent from the area notification system 100 to the central controller 26 of the air conditioning system 20. The centralized controller 26 controls the outdoor unit 22 and the indoor unit 24 based on information received from the area notification system 100.

Area notification system 100 may output information other than the above to the outside via output unit 130 and setting unit 140. For example, when the control unit 110 calculates a predicted value of the power consumption of the air conditioning system 20 based on the usage status of the facility 10, the area notification system 100 outputs the predicted value for the facility via the output unit 130. It may also be transmitted to the terminal 30 or the like.

If the data input to the input unit 120 includes information regarding the user U's demand event participation conditions as the user U's environmental tolerance information, the area notification system 100 provides an incentive to the user U. Good too. In this case, the area notification system 100 may output information regarding the incentive given to the user U who participated in demand control to the outside via the output unit 130 and the setting unit 140. For example, after user U participates in demand control, the area notification system 100 transfers points that can be used in the SNS system that user U is using to user U via the SNS system after demand control ends. May be granted.

(4) Process for determining how to use the facility 10 The area notification system 100 is used to control the air conditioning system 20 installed across multiple areas A based on the overall operating efficiency. The area notification system 100 uses the input information input to the input unit 120 to notify the area A that the user U should use in real time according to predetermined rules so that the power consumption of the air conditioning system 20 is as small as possible. decide. The area notification system 100 notifies the guide of the facility 10 or the user U of information regarding the area A that the user U should use via the output unit 130, It is also transmitted to the controller 26.

The control unit 110 selects the indoor unit 24 to be operated based on at least one of the processing load, refrigeration efficiency, and equipment efficiency of the air conditioning system 20, and selects information regarding the area A where the indoor unit 24 to be operated is installed. Notify.

The processing load of the air conditioning system 20 is based on the air conditioning load required to maintain the air environment of each area A. Each area A has a different air conditioning load depending on its area (for example, floor space), its position within the facility 10, and its position relative to other areas A. The air conditioning load in area A corresponds to the processing load of the indoor unit 24 installed in area A. The processing load of the air conditioning system 20 can be approximately considered as the sum of the air conditioning loads of all the areas A that are the air conditioning targets of the air conditioning system 20 and the sum of the processing loads of all the indoor units 24 of the air conditioning system 20. .

The refrigeration efficiency of the air conditioning system 20 is thermodynamic efficiency such as the coefficient of performance of the refrigeration cycle of the air conditioning system 20. Refrigeration efficiency is increased by relaxing the evaporation temperature in the refrigeration cycle during cooling operation (the condensation temperature during heating operation; the same applies hereinafter). In order to moderate (increase) the evaporation temperature, for example, the set temperature of area A may be increased or the air volume of the indoor unit 24 installed in area A may be increased. Furthermore, refrigeration efficiency is increased by increasing the heat exchange efficiency of the refrigeration cycle. In order to increase the heat exchange efficiency, for example, the processing loads of the plurality of indoor units 24 connected to one outdoor unit 22 are leveled. By increasing the refrigeration efficiency of the air conditioning system 20, the workload of the compressor of the outdoor unit 22 is reduced, and the power consumption of the compressor is reduced.

The equipment efficiency of the air conditioning system 20 is the operating efficiency of the compressor of the outdoor unit 22. In order to increase equipment efficiency, for example, the processing loads of the plurality of indoor units 24 connected to one outdoor unit 22 are leveled. Equipment efficiency can also be increased by moderating the evaporation temperature in the refrigeration cycle during cooling operation.

The amount of power consumed by the air conditioning system 20 becomes smaller as the processing load of the air conditioning system 20 is lower. The amount of power consumed by the air conditioning system 20 becomes smaller as the refrigeration efficiency and device efficiency of the air conditioning system 20 are higher. Generally, the processing load of the air conditioning system 20 has the largest influence on the power consumption of the air conditioning system 20, the refrigeration efficiency of the air conditioning system 20 has the second largest influence, and the equipment efficiency of the air conditioning system 20 has the smallest influence. Therefore, as shown in FIG. 2, the control unit 110 first determines how to use the facility 10 so that the processing load on the air conditioning system 20 is minimized, and then the refrigeration efficiency of the air conditioning system 20 is maximized. The usage method of the facility 10 is determined so that the following is achieved, and then the usage method of the facility 10 is determined so that the equipment efficiency of the air conditioning system 20 is maximized.

Next, a specific example of a process in which the control unit 110 determines how to use the facility 10 based on the processing load, refrigeration efficiency, and equipment efficiency of the air conditioning system 20 will be described. Any one of the processes described below may be used alone, or a plurality of processes may be used in combination.

(4-1) Processing Based on Processing Load In processing based on the processing load of the air conditioning system 20, the control unit 110 determines a method of using the facility 10 that minimizes the processing load of the air conditioning system 20. Thereby, the user U can preferentially use the area A where the air conditioning load is low, so the power consumption of the entire air conditioning system 20 is suppressed.

(4-1-1) Processing based on air conditioning area In this process, the control unit 110 adjusts the usage method of the facility 10 so that the user U preferentially uses area A (room) with a smaller air conditioning area. decide. Specifically, the control unit 110 determines the area A that the user U should use so that the total air-conditioned area of all the areas A used by the user U is the minimum. The air conditioning area is the area occupied by area A, specifically the floor area of area A. The control unit 110 acquires information regarding the air-conditioned area of each area A based on the building drawing information stored in the storage unit 150. The control unit 110 acquires installation information that associates the indoor unit 24 with the area A based on the equipment drawing information stored in the storage unit 150. The control unit 110 acquires usage information of the user U based on the operation information stored in the storage unit 150.

In FIGS. 3 and 4, the facility 10 has a plurality of rooms (here, five rooms) partitioned by walls and doors. Each room corresponds to one of areas A1 to A5, and one indoor unit 24 connected to a common outdoor unit 22 is installed in each area A1 to A5. The four areas A1 to A4 have the same air conditioning area. The air conditioning areas of areas A1 to A4 are smaller than the air conditioning area of area A5. The larger the air conditioning area of areas A1 to A5, the higher the air conditioning load of areas A1 to A5. For example, the air conditioning load for areas A1 to A4 is 1.0 kW, and the air conditioning load for area A5 is 1.5 kW. In FIGS. 3 and 4, below each area A1 to A5, the air conditioning load of the area is written.

Before deciding how to use the facility 10 based on the air-conditioned area, as shown in FIG. 3, the user U1 uses area A1, and the user U2 uses area A5. Areas A2 to A4 are not used. Of the areas A1 to A5, only the indoor units 24 in the areas A1 and A5 are in operation. In this case, the processing load of the air conditioning system 20 (total of air conditioning loads in areas A1 to A5) is 2.5 kW. In Figures 3 and 4, the utilized area is shown as a hatched area. In FIGS. 5 to 20 and 23 to 44, the utilized areas are also shown as hatched areas.

However, as shown in FIG. 4, the control unit 110 determines how the facility 10 is used based on the air-conditioned area of the area A1, such that the user U1 uses the area A1 and the user U2 uses the area A3. Determine. In this case, the processing load of the air conditioning system 20 is 2.0 kW.

Therefore, the control unit 110 can determine how to use the facility 10 based on the air conditioning area of areas A1 to A5 so that the processing load on the air conditioning system 20 is reduced by 0.5 kW. The guide of the facility 10, who has received notification from the area notification system 100 regarding how to use the facility 10, guides the user U2 from area A5 to area A3. Alternatively, the user U2 who has received a notification from the area notification system 100 regarding how to use the facility 10 moves from area A5 to area A3. Based on the information received from the area notification system 100, the central controller 26 of the air conditioning system 20 stops the operation of the indoor unit 24 in area A5 and starts the operation of the indoor unit 24 in area A3.

(4-1-2) Processing based on area position In this processing, the control unit 110 allows the user U to preferentially use the area A (room) that is farther from the outer wall of the building in which the facility 10 is located. The method of using the facility 10 is determined so as to. Specifically, the control unit 110 determines the area A that the user U should use so that the area A facing the outer wall of the building is not used by the user U as much as possible. Area A that faces the exterior wall of the building receives more sunlight from the windows of the room than Area A that does not face the exterior wall of the building, so the indoor temperature tends to rise and the air conditioning load is large. . The control unit 110 acquires information regarding the position of area A based on the building drawing information stored in the storage unit 150. The control unit 110 acquires installation information that associates the indoor unit 24 with the area A based on the equipment drawing information stored in the storage unit 150. The control unit 110 acquires information regarding the amount of solar radiation based on the weather information stored in the storage unit 150. The control unit 110 acquires usage information of the user U based on the operation information stored in the storage unit 150.

In FIGS. 5 and 6, the facility 10 has a plurality of rooms (here, five rooms) partitioned by walls and doors. Each room corresponds to one of areas A1 to A5, and one indoor unit 24 connected to a common outdoor unit 22 is installed in each area A1 to A5. All areas A1 to A5 have the same air conditioning area. Area A5 faces the outer wall of the building in which the facility 10 is located, and windows are attached to the outer wall. The other four areas A1 to A4 do not face the outer wall of the building and have no windows attached to the wall. Therefore, the air conditioning load in area A5 is higher than the air conditioning load in areas A1 to A4 due to sunlight entering through the windows. For example, the air conditioning load for areas A1 to A4 is 1.0 kW, and the air conditioning load for area A5 is 1.5 kW. In FIGS. 5 and 6, below each area A1 to A5, the air conditioning load of the area is written.

Before deciding how to use the facility 10 based on the locations of areas A1 to A5, as shown in FIG. 5, user U1 uses area A1, user U2 uses area A3, and U3 uses area A5. Areas A2 and A4 are not used. Of the areas A1 to A5, only the indoor units 24 in the areas A1, A3, and A5 are in operation. In this case, the processing load of the air conditioning system 20 (total of air conditioning loads in areas A1 to A5) is 3.5 kW.

However, as shown in FIG. 6, the control unit 110 controls areas A1 to A1 so that user U1 uses area A1, user U2 uses area A3, and user U3 uses area A2. The usage method of the facility 10 is determined based on the position of A5. In this case, the processing load of the air conditioning system 20 is 3.0 kW.

Therefore, the control unit 110 can determine how to use the facility 10 based on the positions of areas A1 to A5 so that the processing load on the air conditioning system 20 is reduced by 0.5 kW. The guide of the facility 10, who has received notification from the area notification system 100 regarding how to use the facility 10, guides the user U3 from area A5 to area A2. Alternatively, user U3 who has received notification from area notification system 100 regarding how to use facility 10 moves from area A5 to area A2. Based on the information received from the area notification system 100, the central controller 26 of the air conditioning system 20 stops the operation of the indoor unit 24 in area A5 and starts the operation of the indoor unit 24 in area A2.

Note that the air conditioning load in area A tends to decrease as the area is further away from the outer wall of the building. For example, in FIGS. 5 and 6, area A5 faces the outer wall of the building, and its temperature tends to rise due to solar radiation. In this case, the temperature of area A4 adjacent to area A5 increases compared to areas A1 to A3 because the through-flow heat from area A5 is easily transferred through the wall that partitions area A4 and area A5. Cheap. Therefore, in the process based on the location of area A, the control unit 110 determines how to use the facility 10 so that the user U preferentially uses area A that is farthest from the outer wall of the building in which the facility 10 is located. It is preferable to determine. In the state shown in FIG. 5, the control unit 110 causes the user U to use the area A2 as shown in FIG. 6 rather than the user U3 to use the area A4. It is preferable to determine the area A to be used.

(4-1-3) Processing based on flow-through load In this processing, the control unit 110 adjusts the usage method of the facility 10 so that the user U preferentially uses the area A (room) that is adjacent to each other. decide. Specifically, the control unit 110 determines the area A that the user U should use so that the multiple users U use the multiple areas A that are adjacent to each other. The control unit 110 acquires information regarding the position of the area A and the through-flow load of each area A based on the building drawing information stored in the storage unit 150. The control unit 110 acquires installation information that associates the indoor unit 24 with the area A based on the equipment drawing information stored in the storage unit 150. The control unit 110 acquires usage information of the user U based on the operation information stored in the storage unit 150.

In FIGS. 7 and 8, the facility 10 has a plurality of rooms (here, five rooms) partitioned by walls and doors. Each room corresponds to one of areas A1 to A5, and one indoor unit 24 connected to a common outdoor unit 22 is installed in each area A1 to A5. All areas A1 to A5 have the same air conditioning area.

Before deciding how to use the facility 10 based on the throughflow load, as shown in FIG. 7, user U1 uses area A1, user U2 uses area A3, and user U3 uses area A5. is used. Areas A2 and A4 are not used. Of the areas A1 to A5, only the indoor units 24 in the areas A1, A3, and A5 are in operation. In this case, assuming that the air conditioning load of each of the areas A1, A3, and A5 being used is 1.2 kW, the processing load of the air conditioning system 20 (the total of the air conditioning loads of areas A1 to A5) is 3.6 kW. In FIGS. 7 and 8, below the area in use, the air conditioning load of the area is written.

In the two areas A that are adjacent to each other, cross-flow heat is transferred through a wall that partitions the two areas A. In FIG. 7, in area A1, cross-flow heat is transferred between area A2 and the space outside the facility 10, in area A3, cross-flow heat is transferred between areas A2 and A4, and in area A5, cross-flow heat is transferred between area A4 and area A4. Once-through heat is transferred between the space and the space outside the facility 10. Therefore, the air conditioning load on the areas A1, A3, and A5 that are being used increases by the load (crossover load) caused by the transfer of crossflow heat between areas A1 to A5.

However, as shown in FIG. 8, the control unit 110 controls each area A1 so that the user U1 uses area A1, the user U2 uses area A3, and the user U3 uses area A2. -Determine how to use the facility 10 based on the throughflow load of A5. In this case, since the areas A1 to A3 that are used are adjacent to each other, the flow-through load can be suppressed. In particular, since area A2 is adjacent to areas A1 and A3 that are being used, the flow-through load is smaller than that of areas A4 and A5. Therefore, for example, the air conditioning load in each of areas A1 and A3 is 1.1 kW, and the air conditioning load in area A2 is 1.0 kW. In this case, the processing load of the air conditioning system 20 (total of air conditioning loads in areas A1 to A5) is 3.2 kW.

Therefore, the control unit 110 can determine the usage method of the facility 10 so that the processing load of the air conditioning system 20 is reduced by 0.4 kW based on the throughflow loads in areas A1 to A5. The guide of the facility 10, who has received notification from the area notification system 100 regarding how to use the facility 10, guides the user U3 from area A5 to area A2. Alternatively, user U3 who has received notification from area notification system 100 regarding how to use facility 10 moves from area A5 to area A2. Based on the information received from the area notification system 100, the central controller 26 of the air conditioning system 20 stops the operation of the indoor unit 24 in area A5 and starts the operation of the indoor unit 24 in area A2.

(4-2) Processing based on refrigeration efficiency and equipment efficiency In the processing based on the refrigeration efficiency and equipment efficiency of the air conditioning system 20, the control unit 110 uses a method of using the facility 10 that maximizes the refrigeration efficiency and equipment efficiency of the air conditioning system 20. Determine. As a result, the amount of work of the compressor of the outdoor unit 22 is reduced, so the power consumption of the entire air conditioning system 20 is suppressed.

In this embodiment, the control unit 110 determines how to use the facility 10 so that the processing loads of the plurality of indoor units 24 connected to one outdoor unit 22 are leveled. By leveling the processing load of the indoor unit 24, the heat exchange efficiency of the refrigeration cycle increases, and the refrigeration efficiency and equipment efficiency of the air conditioning system 20 improve. Next, two specific examples of processing based on refrigeration efficiency and equipment efficiency will be described.

(4-2-1) Processing for changing the arrangement of user U In this processing, the control unit 110 changes the arrangement of the indoor units 24 of the plurality of areas A so that the processing loads of the indoor units 24 are equalized. Area A is changed to determine which area A should be used by user U. The control unit 110 acquires information regarding the position of area A based on the building drawing information stored in the storage unit 150. The control unit 110 acquires installation information that associates the indoor unit 24 with the area A based on the equipment drawing information stored in the storage unit 150. The control unit 110 acquires usage information of the user U based on the operation information stored in the storage unit 150.

In Figures 9 and 10, facility 10 has one large room containing five areas A1-A5. Areas A1 to A5 are not divided by walls or the like. One indoor unit 24 connected to a common outdoor unit 22 is installed in each area A1 to A5. All areas A1 to A5 have the same air conditioning area. In FIGS. 9 and 10, the boundaries of each area A1 to A5 are indicated by chain lines.

Before deciding how to use the facility 10, as shown in FIG. 9, user U1 uses area A1, user U2 uses area A2, and user U3 uses area A3. . Areas A4 and A5 are not used. Of the areas A1 to A5, only the indoor units 24 in the areas A1 to A3 that are being used are in operation. For example, the air conditioning load in each of the areas A1 to A3 that are in use is 1.5 kW, and the air conditioning load in each of the areas A4 and A5 that are not in use is 0 kW. In FIGS. 9 and 10, below the area in use, the air conditioning load of the area is written.

In the state shown in FIG. 9, the processing load of the air conditioning system 20 is 4.5 kW, and the standard deviation of the air conditioning loads in areas A1 to A5 is 1.64 kW. The standard deviation represents the degree of equalization of the processing loads of the indoor units 24 installed in areas A1 to A5. The smaller the standard deviation, the greater the leveling of the processing loads of the indoor units 24 installed in each area A1 to A5.

However, as shown in FIG. 10, the control unit 110 controls each user so that the user U1 uses area A1, the user U2 uses area A3, and the user U3 uses area A5. A method of using the facility 10 is determined so that intervals U1 to U3 are left and all areas A1 to A5 are used. In this case, the air conditioning load on each of the areas A1, A3, and A5 that are in use is 1.0 kW, and the air conditioning load on each of the areas A2 and A4 that are not in use is 0.75 kW. The processing load of the air conditioning system 20 is 4.5 kW, and the standard deviation of the air conditioning loads in areas A1 to A5 is 0.27 kW.

Therefore, the control unit 110 determines how to use the facility 10 by changing the arrangement of the users U in order to equalize the processing load of the plurality of indoor units 24 connected to one outdoor unit 22. can be determined. By leveling the processing load of the indoor units 24, the indoor units 24 of the same refrigerant system can be operated efficiently, so that the refrigeration efficiency and equipment efficiency of the air conditioning system 20 increase. Furthermore, during cooling operation, by leveling the processing load of the indoor unit 24, the evaporation temperature in the refrigeration cycle is relaxed, so the refrigeration efficiency and equipment efficiency of the air conditioning system 20 are increased. For example, the evaporation temperature in the state shown in FIG. 9 is 6°C, and the evaporation temperature in the state shown in FIG. 10 is 8°C.

In the case of FIGS. 9 and 10, the guide of the facility 10 who has received a notification from the area notification system 100 regarding how to use the facility 10 guides the user U2 from area A2 to area A5. Alternatively, the user U2 who has received a notification from the area notification system 100 regarding how to use the facility 10 moves from area A2 to area A5. The central controller 26 of the air conditioning system 20 equalizes the processing loads of the indoor units 24 in areas A1 to A5 based on the information received from the area notification system 100.

(4-2-2) Process of changing the arrangement of user U In this process, the control unit 110 changes the area used by user U so that the processing loads of indoor units 24 in multiple areas A are equalized. Area A is replaced and area A that user U should use is determined. The control unit 110 acquires information regarding the position of area A based on the building drawing information stored in the storage unit 150. The control unit 110 acquires installation information that associates the indoor unit 24 with the area A based on the equipment drawing information stored in the storage unit 150. The control unit 110 acquires information regarding the amount of solar radiation based on the weather information stored in the storage unit 150. The control unit 110 acquires environmental permissible information, usage information, etc. of the user U based on the operation information stored in the storage unit 150. In this embodiment, the user U's permissible temperature level is used as the user U's environmental permissible information. The user U's allowable temperature level represents the degree to which the user U can allow the set temperature of the indoor unit 24 to be relaxed.

In FIGS. 11 and 12, the facility 10 has a plurality of rooms (here, five rooms) partitioned by walls and doors. Each room corresponds to one of areas A1 to A5, and one indoor unit 24 connected to a common outdoor unit 22 is installed in each area A1 to A5. All areas A1 to A5 have the same air conditioning area. Area A5 faces the outer wall of the building in which the facility 10 is located, and windows are attached to the outer wall. The other four areas A1 to A4 do not face the outer wall of the building and have no windows attached to the wall.

Before deciding how to use the facility 10, as shown in FIG. 11, users U1 to U5 are using areas A1 to A5, respectively. The allowable temperature level for user U1 is different from the allowable temperature level for users U2 to U5. For example, during cooling operation, user U1 sets the set temperature of the indoor unit 24 in area A1 to 28°C, and users U2 to U5 respectively set the set temperature of the indoor unit 24 in areas A2 to A5 to 28°C. It is set to ℃. In this case, as shown in the table below, in the usage situation shown in FIG. 11, the ventilation load and internal heat generation of the indoor unit 24 in area A1 are respectively Lower than fever. In FIGS. 11 and 12, below each area A1 to A5, the set temperature of the indoor unit 24 in that area is written.

In the above table, the processing load of the indoor units 24 in each area A1 to A5 is the sum of the ventilation load, internal heat generation, and solar radiation load of the indoor units 24. Since area A5 faces the outer wall of the building in which facility 10 is located, the solar radiation load on indoor units 24 in area A5 is higher than the solar radiation load on indoor units 24 in areas A1 to A4. As a result, the processing load of the indoor unit 24 in area A1 is the lowest, and the processing load of the indoor unit 24 in area A5 is the highest.

However, as shown in FIG. 12, the control unit 110 determines how to use the facility 10 so as to replace the users U1 and U5, who have different allowable temperature levels. In this case, since user U1 uses area A5 and user U5 uses area A1, the ventilation load and internal heat generation values of the indoor units 24 in area A1 and area A5 are calculated as shown in the table below. will be replaced. As a result, the air conditioning loads of the indoor units 24 in all areas A1 to A5 become the same, and the processing loads of the indoor units 24 in areas A1 to A5 are leveled.

Therefore, the control unit 110 adjusts the usage method of the facility 10 so as to change the arrangement of the users U in order to equalize the processing load of the plurality of indoor units 24 connected to one outdoor unit 22. can be determined. By leveling the processing load of the indoor units 24, the indoor units 24 of the same refrigerant system can be operated efficiently, so that the refrigeration efficiency and equipment efficiency of the air conditioning system 20 increase. Furthermore, during cooling operation, by leveling the processing load of the indoor unit 24, the evaporation temperature in the refrigeration cycle is relaxed, so the refrigeration efficiency and equipment efficiency of the air conditioning system 20 are increased. For example, the evaporation temperature in the state shown in FIG. 11 is 6°C, and the evaporation temperature in the state shown in FIG. 12 is 8°C.

In the case of FIGS. 11 and 12, the guide of the facility 10 who has received a notification from the area notification system 100 regarding how to use the facility 10 guides the user U1 from area A1 to area A5, and at the same time guides the user U5. , guide you from area A5 to area A1. Alternatively, the user U1 who received a notification from the area notification system 100 regarding how to use the facility 10 moves from area A1 to area A5, and at the same time, the user U5 who received the notification moves from area A5 to area A1. . The central controller 26 of the air conditioning system 20 equalizes the processing loads of the indoor units 24 in areas A1 to A5 based on the information received from the area notification system 100.

(5) Effects The area notification system 100 of this embodiment can optimize the overall operating efficiency of the air conditioning system 20 that performs air conditioning across multiple areas A. Specifically, the area notification system 100 controls the use of the facility 10 based on at least one of the processing load, refrigeration efficiency, and equipment efficiency of the air conditioning system 20 so that the power consumption of the entire air conditioning system 20 is suppressed. method can be determined. The air conditioning system 20 controls the outdoor unit 22 and the indoor unit 24 based on the usage method of the facility 10 determined by the area notification system 100. Thereby, the air conditioning management system 190 using the area notification system 100 can efficiently perform energy saving control to suppress the amount of power consumed by the air conditioning system 20.

-Second embodiment-
The area notification system 100 of this embodiment has the same basic configuration and operation as the area notification system 100 of the first embodiment, so the following description will focus on the differences between the two.

In this embodiment, an air conditioning management system 190 using the area notification system 100 includes a plurality of air conditioning systems 20. In a facility 10 where the area notification system 100 is used, a plurality of air conditioning systems 20 for adjusting the air environment (temperature, humidity, air volume, etc.) of a plurality of areas A are installed. Each air conditioning system 20 includes one refrigeration cycle (refrigerant system) in which a plurality of indoor units 24 are connected to one outdoor unit 22. Therefore, in this embodiment, a plurality of refrigerant systems are installed in the facility 10. Each refrigerant system is independent from each other.

Each air conditioning system 20 can air condition the facility 10 across multiple areas A within the facility 10. However, the plurality of air conditioning systems 20 do not air condition the common area A. In other words, the areas A that are air-conditioned by each air conditioning system 20 do not overlap with each other.

The area notification system 100 is used to control the plurality of air conditioning systems 20 installed across the plurality of areas A based on the overall operating efficiency. The area notification system 100 uses the input information input to the input unit 120 to determine the area A that the user U should use according to predetermined rules so that the power consumption of each air conditioning system 20 is as small as possible. do. The area notification system 100 notifies the guide of the facility 10 or the user U of information regarding the area A that the user U should use via the output unit 130, and notifies each air conditioning system 20 via the setting unit 140. It may also be sent to the centralized controller 26.

Next, a specific example of a process in which the control unit 110 determines how to use the facility 10 based on each of the processing load, refrigeration efficiency, and equipment efficiency of the plurality of air conditioning systems 20 will be described. Any one of the processes described below may be used alone, or a plurality of processes may be used in combination.

(1) Processing based on refrigeration efficiency In processing based on the refrigeration efficiency of the air conditioning system 20, the control unit 110 determines the usage method of the facility 10 that maximizes the refrigeration efficiency of each air conditioning system 20. As a result, the amount of work of the compressor of the outdoor unit 22 of each air conditioning system 20 is reduced, so the power consumption of the plurality of air conditioning systems 20 as a whole is suppressed.

In the following specific example, it is assumed that the facility 10 is installed with two air conditioning systems 20 consisting of a first air conditioning system 20a and a second air conditioning system 20b. The control unit 110 controls the facility 10 so that the processing loads of the plurality of indoor units 24 connected to one outdoor unit 22 are equalized in each of the first air conditioning system 20a and the second air conditioning system 20b. Decide how to use it. By leveling the processing load of the indoor unit 24, the heat exchange efficiency of the refrigeration cycle increases, and the refrigeration efficiency of the first air conditioning system 20a and the second air conditioning system 20b improves.

(1-1) Processing based on user U's allowable air volume The area A used by user U is changed to determine the area A that user U should use. The control unit 110 acquires information regarding the position of area A based on the building drawing information stored in the storage unit 150. The control unit 110 acquires installation information that associates the indoor unit 24 with the area A based on the equipment drawing information stored in the storage unit 150. The control unit 110 acquires environmental permissible information, usage information, etc. of the user U based on the operation information stored in the storage unit 150. In this embodiment, the user U's permissible air volume level is used as the user U's environmental permissible information. The user U's permissible air volume level represents the degree to which the user U can allow the set air volume of the indoor unit 24 to be relaxed.

In FIGS. 13 and 14, the facility 10 has a plurality of rooms (here, 10 rooms) partitioned by walls and doors. Each room corresponds to one of areas A1 to A10, and areas A1 to A5 are air conditioned by the first air conditioning system 20a, and areas A6 to A10 are air conditioned by the second air conditioning system 20b. Ru. One indoor unit 24a connected to a common outdoor unit 22a of the first air conditioning system 20a is installed in each area A1 to A5. One indoor unit 24b connected to the common outdoor unit 22b of the second air conditioning system 20b is installed in each area A6 to A10.

Before deciding how to use the facility 10, as shown in FIG. 13, users U1 to U10 are using areas A1 to A10, respectively. The allowable air volume level differs depending on the users U1 to U10. The permissible air volume level is either a "strong" level that allows the normal level (strong) air volume of the indoor unit 24 to be tolerated, or a "weak" level that does not allow the normal level of air volume of the indoor unit 24. For example, in FIG. 13, the allowable air volume level for users U4 to U5, U8 to U10 is "strong", and the allowable air volume level for users U1 to U3, U6 to U7 is "weak". For example, users U4-U5 and U8-U10 whose allowable air volume level is "strong" can tolerate strong air volume, and users U1-U3, U6-U7 whose allowable air volume level is "weak" can tolerate only weak air volume. acceptable. In FIGS. 13 and 14, below each area A1 to A10, the air volume that can be tolerated by users U1 to U10 using the area is written as "strong" or "weak."

During cooling operation, the larger the amount of air (set air amount) supplied from the indoor units 24a, 24b, the more the evaporation temperature in the refrigeration cycle can be moderated. However, the evaporation temperature is determined according to the smallest set air volume among the set air volumes of the plurality of indoor units 24 connected to the same refrigerant system (air conditioning system 20). Therefore, as in the first air conditioning system 20a shown in FIG. 13, if there is even one indoor unit 24a used by users U1 to U3 whose allowable air volume level is "weak", the entire first air conditioning system 20a Unable to moderate evaporation temperature. Similarly, in the second air conditioning system 20b shown in FIG. 13, there is an indoor unit 24b used by users U6 to U7 whose allowable air volume level is "weak", so the evaporation temperature of the entire second air conditioning system 20b is reduced. Can not do it.

However, as shown in FIG. 14, the control unit 110 switches the users U1 to U10 so that the users U1 to U10 with the same allowable air volume level A method of using the facility 10 is determined so that A1 to A10 can be used. In FIG. 14, users U1 to U3 and U6 to U7 whose allowable air volume level is "weak" use areas A1 to A5 whose air conditioning is controlled by the first air conditioning system 20a. Further, users U4 to U5 and U8 to U10 whose allowable air volume level is "strong" use areas A6 to A10 whose air conditioning is controlled by the second air conditioning system 20b. As a result, the processing load on the indoor units 24 of each air conditioning system 20 is equalized, and the evaporation temperature of the entire second air conditioning system 20b is relaxed. For example, the evaporation temperatures of the first air conditioning system 20a and the second air conditioning system 20b in the state shown in FIG. 13 are 7°C. On the other hand, the evaporation temperature of the first air conditioning system 20a in the state shown in FIG. 14 is 7°C, and the evaporation temperature of the second air conditioning system 20b is 9°C.

Therefore, the area notification system 100 equalizes the processing load of the indoor units 24 of each air conditioning system 20, reduces the evaporation temperature of the second air conditioning system 20b, and increases the refrigeration efficiency of the plurality of air conditioning systems 20 as a whole. be able to. Thereby, the area notification system 100 can suppress the power consumption of the plurality of air conditioning systems 20 as a whole.

(1-2) Processing based on user U's allowable temperature In this process, the control unit 110 controls the user's The area A used by user U is changed to determine the area A that user U should use. The control unit 110 acquires information regarding the position of area A based on the building drawing information stored in the storage unit 150. The control unit 110 acquires installation information that associates the indoor unit 24 with the area A based on the equipment drawing information stored in the storage unit 150. The control unit 110 acquires environmental permissible information, usage information, etc. of the user U based on the operation information stored in the storage unit 150. In this embodiment, the user U's permissible temperature level is used as the user U's environmental permissible information. The user U's allowable temperature level represents the degree to which the user U can allow the set temperature of the indoor unit 24 to be relaxed.

In FIGS. 15 and 16, the facility 10 has a plurality of rooms (here, 10 rooms) partitioned by walls and doors. Each room corresponds to one of areas A1 to A10, and areas A1 to A5 are air conditioned by the first air conditioning system 20a, and areas A6 to A10 are air conditioned by the second air conditioning system 20b. Ru. One indoor unit 24a connected to a common outdoor unit 22a of the first air conditioning system 20a is installed in each area A1 to A5. One indoor unit 24b connected to the common outdoor unit 22b of the second air conditioning system 20b is installed in each area A6 to A10.

Before deciding how to use the facility 10, as shown in FIG. 15, users U1 to U10 are respectively using areas A1 to A10. The allowable temperature level differs depending on the users U1 to U10. The permissible temperature level is either a "strong" level that allows the temperature of the indoor unit 24 to be reduced to the normal level, or a "weak" level that does not allow the temperature of the indoor unit 24 to be reduced to the normal level. For example, in FIG. 15, the allowable temperature levels for users U4 to U5 and U8 to U10 are "strong," and the allowable temperature levels for users U1 to U3 and U6 to U7 are "weak." During cooling operation, users U4-U5, U8-U10 whose allowable temperature level is "strong" are allowed to set a higher temperature than users U1-U3, U6-U7 whose allowable temperature level is "weak". can. For example, users U4-U5 and U8-U10 whose allowable temperature level is "strong" can tolerate set temperatures up to 28°C, and users U1-U3, U6-U7 whose allowable temperature level is "weak" Can tolerate set temperatures up to 24°C. In FIGS. 15 and 16, below each area A1 to A10, the maximum value of the set temperature that users U1 to U10 using the area can tolerate during cooling operation is listed.

During cooling operation, the higher the temperature (set temperature) of the air supplied from the indoor units 24a, 24b, the more the evaporation temperature in the refrigeration cycle can be relaxed. However, the evaporation temperature is determined according to the lowest set temperature among the set temperatures of the plurality of indoor units 24 connected to the same refrigerant system (air conditioning system 20). Therefore, as in the first air conditioning system 20a shown in FIG. 15, if there is even one indoor unit 24a used by users U1 to U3 whose allowable temperature level is "weak", the entire first air conditioning system 20a Unable to moderate evaporation temperature. Similarly, in the second air conditioning system 20b shown in FIG. 15, there is an indoor unit 24b used by users U6 to U7 whose allowable temperature level is "weak", so the evaporation temperature of the entire second air conditioning system 20b is relaxed. Can not do it.

However, as shown in FIG. 16, the control unit 110 switches the users U1 to U10 so that the users U1 to U10 with the same allowable temperature level A method of using the facility 10 is determined so that A1 to A10 can be used. In FIG. 16, users U1 to U3 and U6 to U7 whose allowable temperature level is "weak" use areas A1 to A5 whose air conditioning is controlled by the first air conditioning system 20a. Furthermore, users U4 to U5 and U8 to U10 whose allowable temperature level is "strong" use areas A6 to A10 whose air conditioning is controlled by the second air conditioning system 20b. As a result, the processing load on the indoor units 24 of each air conditioning system 20 is equalized, and the evaporation temperature of the entire second air conditioning system 20b is relaxed. For example, the evaporation temperatures of the first air conditioning system 20a and the second air conditioning system 20b in the state shown in FIG. 15 are 7°C. On the other hand, the evaporation temperature of the first air conditioning system 20a in the state shown in FIG. 16 is 7°C, and the evaporation temperature of the second air conditioning system 20b is 9°C.

Therefore, the area notification system 100 equalizes the processing load of the indoor units 24 of each air conditioning system 20, reduces the evaporation temperature of the second air conditioning system 20b, and increases the refrigeration efficiency of the plurality of air conditioning systems 20 as a whole. be able to. Thereby, the area notification system 100 can suppress the power consumption of the plurality of air conditioning systems 20 as a whole.

(1-3) Processing based on the number of operating indoor units 24 In this process, the control unit 110 changes the number of operating indoor units 24 in each of the plurality of air conditioning systems 20. The indoor units 24 to be operated are selected so that the number of air conditioning systems 20 that the system has is small. The control unit 110 acquires information regarding the position of area A based on the building drawing information stored in the storage unit 150. The control unit 110 acquires installation information that associates the indoor unit 24 with the area A based on the equipment drawing information stored in the storage unit 150. The control unit 110 acquires usage information of the user U based on the operation information stored in the storage unit 150.

In FIGS. 17 and 18, the facility 10 has a plurality of rooms (here, 10 rooms) partitioned by walls and doors. Each room corresponds to one of areas A1 to A10, and areas A1 to A5 are air conditioned by the first air conditioning system 20a, and areas A6 to A10 are air conditioned by the second air conditioning system 20b. Ru. One indoor unit 24a connected to a common outdoor unit 22a of the first air conditioning system 20a is installed in each area A1 to A5. One indoor unit 24b connected to the common outdoor unit 22b of the second air conditioning system 20b is installed in each area A6 to A10.

Before deciding how to use the facility 10, as shown in FIG. 17, users U1 and U2 use areas A1 and A2, respectively, and users U3 and U4 use areas A6 and A2, respectively. I am using A7. In areas A1 to A2, the indoor unit 24a of the first air conditioning system 20a is operating, and in areas A6 to A7, the indoor unit 24b of the second air conditioning system 20b is operating, so the air conditioning system has the indoor unit 24 in operation. The number of 20 is 2.

However, as shown in FIG. 18, the control unit 110 switches the users U1 to U4 so that the users U1 to U4 use areas A1 to A10 where indoor units 24 belonging to the same refrigerant system are installed. Decide how to use the facility 10 so that the facility 10 can be used. In FIG. 18, all users U1 to U4 use areas A1 to A4 whose air conditioning is controlled by the first air conditioning system 20a. In areas A1 to A4, only the indoor unit 24a of the first air conditioning system 20a is in operation, so the number of air conditioning systems 20 having the indoor unit 24 in operation is one.

Therefore, by determining the usage method of the facility 10, the control unit 110 can reduce the number of air conditioning systems 20 having the indoor units 24 in operation. Thereby, the area notification system 100 can suppress the power consumption of the plurality of air conditioning systems 20 as a whole.

(2) Processing Based on Equipment Efficiency In processing based on the equipment efficiency of the air conditioning systems 20, the control unit 110 determines the usage method of the facility 10 that maximizes the equipment efficiency of each air conditioning system 20. As a result, the amount of work of the compressor of the outdoor unit 22 of each air conditioning system 20 is reduced, so the power consumption of the plurality of air conditioning systems 20 as a whole is suppressed.

In this process, the control unit 110 controls the indoor units 24 operating in each of the plurality of air conditioning systems 20 so that the efficiency (equipment efficiency) of the compressor of each of the outdoor units 22 in the plurality of air conditioning systems 20 is as high as possible. Change the number. The control unit 110 acquires information regarding the position of area A based on the building drawing information stored in the storage unit 150. The control unit 110 acquires installation information that associates the indoor unit 24 with the area A based on the equipment drawing information stored in the storage unit 150. The control unit 110 acquires usage information of the user U based on the operation information stored in the storage unit 150.

In FIGS. 19 and 20, the facility 10 has a plurality of rooms (here, 10 rooms) partitioned by walls and doors. Each room corresponds to one of areas A1 to A10, and areas A1 to A5 are air conditioned by the first air conditioning system 20a, and areas A6 to A10 are air conditioned by the second air conditioning system 20b. Ru. One indoor unit 24a connected to a common outdoor unit 22a of the first air conditioning system 20a is installed in each area A1 to A5. One indoor unit 24b connected to the common outdoor unit 22b of the second air conditioning system 20b is installed in each area A6 to A10.

Before determining how to use the facility 10, as shown in FIG. 19, users U1 to U5 use areas A1 to A5, respectively, and user U6 uses area A6. . Therefore, the system load factor of the first air conditioning system 20a is 100%, and the system load factor of the second air conditioning system 20b is 20%. The system load factor is the ratio of the number of operating indoor units 24 to all the indoor units 24 included in the air conditioning system 20 (refrigerant system). In the case of the second air conditioning system 20b, among the five indoor units 24b installed in areas A6 to A10, only the indoor unit 24b installed in area A6 is operating, so the system load factor is 20%. .

As shown in FIG. 21, the operating efficiency COP of the outdoor unit 22 is maximum when the system load factor of the air conditioning system 20 is around 50%. However, in the state shown in FIG. 19, the system load factors of each air conditioning system 20 are 100% and 20%, so the operating efficiency COP of the outdoor unit 22 of each air conditioning system 20 is not the maximum.

However, as shown in FIG. 20, the control unit 110 decides how to use the facility 10 by replacing the users U1 to U6. As a result, users U1 to U3 can use areas A1 to A3 where the indoor units 24a of the first air conditioning system 20a are installed, and users U4 to U6 can use the areas A1 to A3 where the indoor units 24b of the second air conditioning system 20b are installed. Areas A4 to A6 can be used. In this case, the system load factors of the first air conditioning system 20a and the second air conditioning system 20b are both 60%. As shown in FIG. 21, the operating efficiency COP of the outdoor unit 22 when the system load factor of the air conditioning system 20 is 60% is the operating efficiency COP of the outdoor unit 22 when the system load factor of the air conditioning system 20 is 20% or 100%. Higher operating efficiency than COP. Therefore, in the state shown in FIG. 20, the operating efficiency COP of the outdoor unit 22 of each air conditioning system 20 is higher than in the state shown in FIG.

Therefore, the control unit 110 can increase the operating efficiency COP of the outdoor unit 22 of each air conditioning system 20 by determining the usage method of the facility 10, thereby increasing the equipment efficiency of each air conditioning system 20. Thereby, the area notification system 100 can suppress the power consumption of the plurality of air conditioning systems 20 as a whole.

(3) Effects The area notification system 100 of this embodiment can optimize the overall operating efficiency of the plurality of air conditioning systems 20 that perform air conditioning across the plurality of areas A. Specifically, the area notification system 100 provides information based on at least one of the processing load, refrigeration efficiency, and equipment efficiency of each of the plurality of air conditioning systems 20 so that the overall power consumption of the plurality of air conditioning systems 20 is suppressed. Accordingly, the method of using the facility 10 can be determined. Each air conditioning system 20 controls the outdoor unit 22 and the indoor unit 24 based on the usage method of the facility 10 determined by the area notification system 100. Thereby, the air conditioning management system 190 using the area notification system 100 can efficiently perform energy saving control to suppress the power consumption of the plurality of air conditioning systems 20.

-Third embodiment-
The area notification system 100 of this embodiment has the same basic configuration and operation as the area notification system 100 of the first embodiment, so the following description will focus on the differences between the two.

In this embodiment, the air conditioning management system 190 using the area notification system 100 has one air conditioning system 20. In a facility 10 where the area notification system 100 is used, one air conditioning system 20 for adjusting the air environment (temperature, humidity, air volume, etc.) of a plurality of areas A is installed. The air conditioning system 20 includes one refrigeration cycle (refrigerant system) in which a plurality of utilization units 23 are connected to one heat source unit 21 . Therefore, in this embodiment, one refrigerant system is installed in the facility 10.

In this embodiment, the air conditioning system 20 transports heat using air and water as media. As shown in FIG. 22, the air conditioning system 20 mainly includes a chiller 121, a secondary pump 122, an air handling unit (AHU) 123, a duct 124, and a variable air volume unit (VAV) 125. . The heat source unit 21 is a unit mainly composed of a chiller 121, a secondary pump 122, an AHU 123, and a duct 124. The usage unit 23 is VAV125. One VAV 125 is installed in each area A within the facility 10. The AHU 123 sends out temperature-adjusted air to the VAV 125 in each area A. VAV 125 supplies temperature-regulated air to area A.

Like the outdoor unit 22 of the first embodiment, the chiller 121 includes a compressor that compresses the refrigerant circulating in the refrigeration cycle. The chiller 121 adjusts the temperature of the heat transfer medium by heat exchange with the refrigerant circulating in the refrigeration cycle. The heat transfer medium is a liquid that circulates through chiller 121 and AHU 123. In this embodiment, the heat transfer medium is water.

Water whose temperature has been adjusted by the chiller 121 is sent to the AHU 123 by the secondary pump 122. AHU 123 includes an outside air damper 123a, a blower fan 123b, and a heat exchange coil 123c. The AHU 123 takes in air from outdoors and indoors by driving the blower fan 123b, and sends it to the heat exchange coil 123c. The AHU 123 can adjust the amount of air taken in from outdoors by adjusting the opening degree of the outside air damper 123a. The heat exchange coil 123c performs heat exchange between the air taken in from outdoors and indoors and the water sent from the chiller 121. The AHU 123 sends air whose temperature has been adjusted by exchanging heat with the heat exchange coil 123c to the duct 124. The duct 124 is connected to the VAV 125 of each area A. Air flowing through the duct 124 is sent to each area A via the VAV 125. Thereby, each area A is supplied with air whose temperature has been adjusted by the AHU 123. The VAV 125 includes an air supply damper 125a for adjusting the amount of air supplied to area A. The VAV 125 has a controller for acquiring the opening degree of the supply air damper 125a and setting the opening degree of the supply air damper 125a to a predetermined value.

The air conditioning system 20 of this embodiment performs air conditioning control and ventilation control. Air conditioning control is control that adjusts the amount of air required to process the air conditioning load of each area A. In air conditioning control, the control unit 110 adjusts the opening degree of the supply air damper 125a of each VAV 125 according to the air conditioning load of each area A, and controls the amount of air (supply air amount) supplied to each area A. adjust. Ventilation control is control that adjusts the amount of air required to satisfy the ventilation amount of each area A. In ventilation control, the control unit 110 adjusts the opening degree of the outside air damper 123a to adjust the amount of outside air introduced into the AHU 123 (outside air amount). The control unit 110 can obtain and set the opening degrees of the outside air damper 123a and the supply air damper 125a, and the capacity (rotation speed) of the blower fan 123b. The control unit 110 can start or stop the operation of the VAV 125. The opening degree of the supply air damper 125a of the VAV 125 that has been started and is in operation is greater than zero. The opening degree of the air supply damper 125a of the VAV 125 that is not in operation due to its operation being stopped is zero.

The area notification system 100 is used to perform control based on the overall operating efficiency of the air conditioning system 20 installed across a plurality of areas A. The area notification system 100 uses the input information input to the input unit 120 to determine the area A that the user U should use according to predetermined rules so that the power consumption of the air conditioning system 20 is as small as possible. . The area notification system 100 notifies the guide of the facility 10 or the user U of information regarding the area A that the user U should use via the output unit 130, It is also transmitted to the controller 26.

Next, a specific example of a process in which the control unit 110 determines how to use the facility 10 based on the processing load of the air conditioning system 20, heat transfer efficiency, and outside air introduction rate will be described. Any one of the processes described below may be used alone, or a plurality of processes may be used in combination. When a plurality of processes are used in combination, it is preferable that the processes are executed in the order of the process based on the processing load, the process based on the heat transfer efficiency, and the process based on the outside air introduction rate.

In this embodiment, equipment drawing information is specifically information regarding the following items.

- System of duct 124 - System of piping for water circulating through chiller 121 and AHU 123 - Arrangement of chiller 121, AHU 123 and VAV 125 - Performance characteristics of equipment such as chiller 121, secondary pump 122, AHU 123 and VAV 125 (1) Processing load In the process based on the processing load of the air conditioning system 20, the control unit 110 determines a method of using the facility 10 that minimizes the processing load of the air conditioning system 20. Thereby, the user U can preferentially use the area A where the air conditioning load is low, so the power consumption of the entire air conditioning system 20 is suppressed.

(1-1) Processing based on air conditioning area In this process, the control unit 110 determines how to use the facility 10 so that the user U preferentially uses area A (room) with a smaller air conditioning area. . Specifically, the control unit 110 determines the area A that the user U should use so that the total air-conditioned area of all the areas A used by the user U is the minimum. The air conditioning area is the area occupied by area A, specifically the floor area of area A. The control unit 110 acquires information regarding the air-conditioned area of each area A based on the building drawing information stored in the storage unit 150. The control unit 110 acquires installation information that associates the VAV 125 with the area A based on the equipment drawing information stored in the storage unit 150. The control unit 110 acquires usage information of the user U based on the operation information stored in the storage unit 150.

In FIGS. 23 and 24, the facility 10 has a plurality of rooms (here, five rooms) divided by walls and doors. Each room corresponds to one of areas A1 to A5, and one VAV 125 connected to a common AHU 123 is installed in each area A1 to A5. The four areas A1 to A4 have the same air conditioning area. The air conditioning areas of areas A1 to A4 are smaller than the air conditioning area of area A5. The larger the air conditioning area of areas A1 to A5, the higher the air conditioning load of areas A1 to A5. For example, the air conditioning load for areas A1 to A4 is 1.0 kW, and the air conditioning load for area A5 is 1.5 kW. In FIGS. 23 and 24, below each area A1 to A5, the air conditioning load of the area is written.

Before deciding how to use the facility 10 based on the air-conditioned area, as shown in FIG. 23, the user U1 uses area A1, and the user U2 uses area A5. Areas A2 to A4 are not used. Of the areas A1 to A5, only the VAVs 125 in the areas A1 and A5 are in operation. In this case, the processing load of the air conditioning system 20 (total of air conditioning loads in areas A1 to A5) is 2.5 kW.

However, as shown in FIG. 24, the control unit 110 determines how to use the facility 10 based on the air-conditioned area of area A1, such that user U1 uses area A1 and user U2 uses area A3. Determine. In this case, the processing load of the air conditioning system 20 is 2.0 kW.

Therefore, the control unit 110 can determine how to use the facility 10 based on the air conditioning area of areas A1 to A5 so that the processing load on the air conditioning system 20 is reduced by 0.5 kW. The guide of the facility 10, who has received notification from the area notification system 100 regarding how to use the facility 10, guides the user U2 from area A5 to area A3. Alternatively, the user U2 who has received a notification from the area notification system 100 regarding how to use the facility 10 moves from area A5 to area A3. Based on the information received from the area notification system 100, the central controller 26 of the air conditioning system 20 stops the operation of the VAV 125 in area A5 and starts the operation of the VAV 125 in area A3.

(1-2) Processing based on area position In this processing, the control unit 110 causes the user U to preferentially use area A (room) that is farther from the outer wall of the building in which the facility 10 is located. Then, the method of using the facility 10 is determined. Specifically, the control unit 110 determines the area A that the user U should use so that the area A facing the outer wall of the building is not used by the user U as much as possible. Area A facing the exterior wall of the building receives more sunlight from the windows of the room than Area A not facing the exterior wall of the building, so the indoor temperature tends to rise and the air conditioning load is greater. . The control unit 110 acquires information regarding the position of area A based on the building drawing information stored in the storage unit 150. The control unit 110 acquires installation information that associates the VAV 125 with the area A based on the equipment drawing information stored in the storage unit 150. The control unit 110 acquires information regarding the amount of solar radiation based on the weather information stored in the storage unit 150. The control unit 110 acquires usage information of the user U based on the operation information stored in the storage unit 150.

In FIGS. 25 and 26, the facility 10 has a plurality of rooms (here, five rooms) divided by walls and doors. Each room corresponds to one of areas A1 to A5, and one VAV 125 connected to a common AHU 123 is installed in each area A1 to A5. All areas A1 to A5 have the same air conditioning area. Area A5 faces the outer wall of the building in which the facility 10 is located, and windows are attached to the outer wall. The other four areas A1 to A4 do not face the outer wall of the building and have no windows attached to the wall. Therefore, the air conditioning load in area A5 is higher than the air conditioning load in areas A1 to A4 due to sunlight entering through the windows. For example, the air conditioning load for areas A1 to A4 is 1.0 kW, and the air conditioning load for area A5 is 1.5 kW. In FIGS. 25 and 26, below each area A1 to A5, the air conditioning load of the area is written.

Before deciding how to use the facility 10 based on the locations of areas A1 to A5, as shown in FIG. 25, user U1 uses area A1, user U2 uses area A3, and U3 uses area A5. Areas A2 and A4 are not used. Among areas A1 to A5, only the VAVs 125 in areas A1, A3, and A5 are in operation. In this case, the processing load of the air conditioning system 20 (total of air conditioning loads in areas A1 to A5) is 3.5 kW.

However, as shown in FIG. 26, the control unit 110 controls areas A1 to A1 so that user U1 uses area A1, user U2 uses area A3, and user U3 uses area A2. The usage method of the facility 10 is determined based on the position of A5. In this case, the processing load of the air conditioning system 20 is 3.0 kW.

Therefore, the control unit 110 can determine how to use the facility 10 based on the positions of areas A1 to A5 so that the processing load on the air conditioning system 20 is reduced by 0.5 kW. The guide of the facility 10, who has received notification from the area notification system 100 regarding how to use the facility 10, guides the user U3 from area A5 to area A2. Alternatively, user U3 who has received notification from area notification system 100 regarding how to use facility 10 moves from area A5 to area A2. Based on the information received from the area notification system 100, the central controller 26 of the air conditioning system 20 stops the operation of the VAV 125 in area A5 and starts the operation of the VAV 125 in area A2.

Note that the air conditioning load in area A tends to decrease as the area is further away from the outer wall of the building. For example, in FIGS. 25 and 26, area A5 faces the outer wall of the building, and its temperature tends to rise due to solar radiation. In this case, the temperature of area A4 adjacent to area A5 increases compared to areas A1 to A3 because the through-flow heat from area A5 is easily transferred through the wall that partitions area A4 and area A5. Cheap. Therefore, in the process based on the location of area A, the control unit 110 determines how to use the facility 10 so that the user U preferentially uses area A that is farthest from the outer wall of the building in which the facility 10 is located. It is preferable to determine. In the state shown in FIG. 25, the control unit 110 causes the user U to use the area A2 as shown in FIG. 26 rather than the user U3 to use the area A4. It is preferable to determine the area A to be used.

(1-3) Processing based on throughflow load In this processing, the control unit 110 determines how to use the facility 10 so that the user U preferentially uses the area A (room) that is adjacent to each other. . Specifically, the control unit 110 determines the area A that the user U should use so that the multiple users U use the multiple areas A that are adjacent to each other. The control unit 110 acquires information regarding the position of the area A and the through-flow load of each area A based on the building drawing information stored in the storage unit 150. The control unit 110 acquires installation information that associates the VAV 125 with the area A based on the equipment drawing information stored in the storage unit 150. The control unit 110 acquires usage information of the user U based on the operation information stored in the storage unit 150.

In FIGS. 27 and 28, the facility 10 has a plurality of rooms (here, five rooms) divided by walls and doors. Each room corresponds to one of areas A1 to A5, and one VAV 125 connected to a common AHU 123 is installed in each area A1 to A5. All areas A1 to A5 have the same air conditioning area.

Before deciding how to use the facility 10 based on the throughflow load, as shown in FIG. 27, user U1 uses area A1, user U2 uses area A3, and user U3 uses area A5. is used. Areas A2 and A4 are not used. Among areas A1 to A5, only the VAVs 125 in areas A1, A3, and A5 are in operation. In this case, assuming that the air conditioning load of each of the areas A1, A3, and A5 being used is 1.2 kW, the processing load of the air conditioning system 20 (the total of the air conditioning loads of areas A1 to A5) is 3.6 kW. In FIGS. 27 and 28, below the area in use, the air conditioning load of the area is written.

In the two areas A that are adjacent to each other, cross-flow heat is transferred through a wall that partitions the two areas A. In FIG. 27, in area A1, once-through heat is transferred between area A2 and the space outside the facility 10, in area A3, once-through heat is transferred between areas A2 and A4, and in area A5, once-through heat is transferred between area A4 and area A4. Once-through heat is transferred between the space and the space outside the facility 10. Therefore, the air conditioning load on the areas A1, A3, and A5 that are being used increases by the load (crossover load) caused by the transfer of crossflow heat between areas A1 to A5.

However, as shown in FIG. 28, the control unit 110 controls each area A1 so that the user U1 uses area A1, the user U2 uses area A3, and the user U3 uses area A2. -Determine how to use the facility 10 based on the throughflow load of A5. In this case, since the areas A1 to A3 that are used are adjacent to each other, the flow-through load can be suppressed. In particular, since area A2 is adjacent to areas A1 and A3 that are being used, the flow-through load is smaller than that of areas A4 and A5. Therefore, for example, the air conditioning load in each of areas A1 and A3 is 1.1 kW, and the air conditioning load in area A2 is 1.0 kW. In this case, the processing load of the air conditioning system 20 (total of air conditioning loads in areas A1 to A5) is 3.2 kW.

Therefore, the control unit 110 can determine the usage method of the facility 10 so that the processing load of the air conditioning system 20 is reduced by 0.4 kW based on the throughflow loads in areas A1 to A5. The guide of the facility 10, who has received notification from the area notification system 100 regarding how to use the facility 10, guides the user U3 from area A5 to area A2. Alternatively, user U3 who has received notification from area notification system 100 regarding how to use facility 10 moves from area A5 to area A2. Based on the information received from the area notification system 100, the central controller 26 of the air conditioning system 20 stops the operation of the VAV 125 in area A5 and starts the operation of the VAV 125 in area A2.

(2) Processing based on heat transfer efficiency In the process based on the heat transfer efficiency of the air conditioning system 20, the control unit 110 determines the usage method of the facility 10 that maximizes the heat transfer efficiency of the air sent from the AHU 123 to each VAV 125. . Thereby, the user U can preferentially use the area A where the air conditioning load is low, so the power consumption of the entire air conditioning system 20 is suppressed.

In this process, the control unit 110 changes the area A that the user U should use so that the VAV 125 with less pressure loss due to duct resistance is used preferentially. decide. The control unit 110 acquires information regarding the position of area A based on the building drawing information stored in the storage unit 150. The control unit 110 acquires installation information that associates the VAV 125 with the area A based on the equipment drawing information stored in the storage unit 150. The control unit 110 acquires usage information of the user U based on the operation information stored in the storage unit 150.

In FIGS. 29 and 30, the facility 10 has a plurality of rooms (here, five rooms) divided by walls and doors. Each room corresponds to one of areas A1 to A5, and one VAV 125 connected to a common AHU 123 is installed in each area A1 to A5. All areas A1 to A5 have the same air conditioning area.

Before deciding how to use the facility 10, as shown in FIG. 29, user U1 uses area A1, user U2 uses area A3, and user U3 uses area A5. . Areas A2 and A4 are not used. Among areas A1 to A5, only the VAVs 125 in areas A1, A3, and A5 are in operation.

In the following, the duct distance of each area A1 to A5 is defined as the distance that air sent out from the AHU 123 passes through the inside of the duct 124 before reaching the VAV 125 of each area A1 to A5. As shown in FIGS. 29 and 30, areas A1 to A5 are arranged in order of distance from the AHU 123. In other words, area A1 is closest to AHU 123 and area A5 is farthest from AHU 123. Therefore, the duct distance increases in the order of areas A1 to A5. The longer the duct distance between areas A1 to A5, the greater the duct resistance of the VAV 125 installed in areas A1 to A5. The larger the duct resistance of the VAV 125 is, the higher the ability of the blower fan 123b to pass the required amount of air to the VAV 125 becomes, and the power consumption of the air conditioning system 20 increases. Therefore, the smaller the total duct resistance of the VAV 125 in areas A1 to A5, the smaller the power consumption of the air conditioning system 20.

In FIGS. 29 and 30, the duct resistance of the VAV 125 installed in area A1 is the lowest, and the duct resistance of the VAV 125 installed in area A5 is the highest. In the state shown in FIG. 29, for example, the duct resistance of the VAV 125 installed and operating in area A5 is greater than the duct resistance of the VAV 125 installed in area A2 and not operating. Therefore, by operating the VAV 125 in area A2 instead of the VAV 125 in area A5, the total duct resistance of the VAV 125 in areas A1 to A5 can be reduced. In this way, by changing the area A used by the user U and determining the area A that the user U should use, the air conditioning system 20 power consumption is reduced.

In the present embodiment, as shown in FIG. 30, the control unit 110 allows the user U1 to use area A1, the user U2 to use area A3, and the user U3 to use area A2. Decide how to use the facility 10. In this case, the total duct resistance of the VAV 125 in areas A1 to A3 used in FIG. 30 is smaller than the total duct resistance of the VAV 125 in areas A1, A3, and A5 used in FIG.

Therefore, the control unit 110 determines how to use the facility 10 so as to change the arrangement of the users U in order to reduce the total duct resistance of the plurality of VAVs 125 connected to one AHU 123. be able to. By reducing the duct resistance, the capacity of the blower fan 123b can be suppressed, so multiple VAVs 125 of the same refrigerant system can be operated efficiently, and the heat transfer efficiency of the air conditioning system 20 is improved. In the case of FIGS. 29 and 30, the guide of the facility 10 who has received a notification from the area notification system 100 regarding how to use the facility 10 guides the user U3 from area A5 to area A2. Alternatively, user U3 who has received notification from area notification system 100 regarding how to use facility 10 moves from area A5 to area A2. Based on the information received from the area notification system 100, the central controller 26 of the air conditioning system 20 stops the operation of the VAV 125 in area A5 and starts the operation of the VAV 125 in area A2.

(3) Processing based on outside air introduction rate In the processing based on the outside air introduction rate of the air conditioning system 20, the control unit 110 determines how to use the facility 10 so that the outside air introduction rate of the VAV 125 in area A is equalized. The outside air introduction rate of the VAV 125 is the ratio of the required outside air amount to the required air supply amount of the area A where the VAV 125 is installed. The required air supply amount is the amount of air that needs to be supplied from the AHU 123 to area A in order to process the air conditioning load in area A. The higher the air conditioning load in area A, the greater the required air supply amount. The required amount of outside air is the amount of outside air that needs to be supplied from the AHU 123 to area A in order to satisfy the ventilation amount of area A. The larger the number of users U in area A, the larger the required amount of outside air. The unit of the required supply air amount and the required outside air amount is, for example, cubic meters per hour (m ³ /h). The control for leveling the outside air introduction rates is the control for reducing the difference between the maximum value and the minimum value of the outside air introduction rates for each of the plurality of areas A. As will be described next, by leveling the outside air introduction rates of the plurality of areas A, excessive intake of outside air into the area A is suppressed, so the power consumption of the entire air conditioning system 20 is suppressed.

In this process, the control unit 110 changes the area A used by the user U so that the outside air introduction rate of the area A is equalized, and determines the area A that the user U should use. The control unit 110 acquires information regarding the position of area A based on the building drawing information stored in the storage unit 150. The control unit 110 acquires installation information that associates the VAV 125 with the area A based on the equipment drawing information stored in the storage unit 150. The control unit 110 acquires usage information of the user U based on the operation information stored in the storage unit 150.

In FIGS. 31 and 32, the facility 10 has a plurality of rooms (here, three rooms) partitioned by walls and doors. Each room corresponds to one of areas A1 to A3, and one VAV 125 connected to a common AHU 123 is installed in each area A1 to A3. All areas A1 to A3 have the same air conditioning area. Area A3 faces the outer wall of the building in which the facility 10 is located, and windows are attached to the outer wall. The other two areas A1 and A2 do not face the outer wall of the building and have no windows attached to the wall. Therefore, the air conditioning load in area A3 is higher than the air conditioning load in areas A1 and A2 due to sunlight entering through the windows.

Hereinafter, outside air OA, indoor air RA, mixed air MA, and supply air SA shown in FIG. 22 are defined as follows.
- Outside air: Air taken into the AHU 123 via the outside air damper 123a.
- Indoor air: Air taken into AHU123 from area A.
-Mixed air: A mixture of outside air and indoor air, which is air before being heat exchanged with the heat exchange coil 123c.
- Supply air: Mixed air after heat exchange with the heat exchange coil 123c, and air supplied to each area A via the duct 124.

Before determining how to use the facility 10, as shown in FIG. 31, users U1 and U2 use area A1, user U3 uses area A2, and user U4 uses area A3. ing. VAV 125 is in operation in the areas A1 to A3 that are in use. In the case of cooling operation, in the state shown in FIG. 31, the air volume and temperature of the outside air OA, indoor air RA, mixed air MA, and supply air SA are as follows, for example.

In the state shown in FIG. 31, the required supply air amount, required outside air amount, and outside air introduction rate for each area A1 to A3 are, for example, as follows. The value of the required amount of outside air is the value obtained by multiplying the number of users U in area A by 30.

After the control unit 110 changes the area A used by the user U so that the outside air introduction rate in areas A1 to A3 is equalized, the user U1 changes the area A1 to be used by the user U, as shown in FIG. User U3 uses area A2, and users U2 and U4 use area A3. VAV 125 is in operation in the areas A1 to A3 that are in use. Therefore, compared to the state shown in FIG. 31, the user U2 has moved from area A1 to area A3. In the state shown in FIG. 32, the air volume and temperature of the outside air OA, indoor air RA, mixed air MA, and supply air SA are as follows, for example.

In the state shown in FIG. 32, the required supply air amount, required outside air amount, and outside air introduction rate for each area A1 to A3 are, for example, as follows.

In the state shown in FIG. 31, the outside air introduction rates of areas A1 to A3 are different from each other, and the maximum value of the outside air introduction rate is 20%, and the minimum value of the outside air introduction rate is 5%. On the other hand, in the state shown in FIG. 32, the outside air introduction rates in areas A1 to A3 are all 10%.

In the process based on the outside air introduction rate, the control unit 110 controls the area A used by the users U so that the higher the required air supply amount of the area A, the more users U use the area A. Then, the area A that the user U should use is determined. The larger the number of users U using area A, the higher the required amount of outside air for that area A. Therefore, by moving the user U of area A where the outside air introduction rate is high to area A where the outside air introduction rate is low, the outside air introduction rates of the plurality of areas A are equalized. In the above example, by moving the user U2 in area A1, where the outside air introduction rate is the highest, to area A3, where the outside air introduction rate is the smallest, the outside air introduction rate in area A1 is decreased, and the outside air introduction rate in area A3 is reduced. The adoption rate is increasing. As a result, the difference between the maximum value and the minimum value of the outside air introduction rate in areas A1 to A3 becomes smaller, so that the outside air introduction rate is equalized.

The control unit 110 adjusts the opening degree of the outside air damper 123a of the AHU 123 based on the maximum value of the outside air introduction rate of each of the plurality of areas A. Specifically, the control unit 110 increases the opening degree of the outside air damper 123a of the AHU 123 as the maximum value of the outside air introduction rate in area A is higher. Therefore, when the air volume of the supply air SA is constant, the higher the maximum value of the outside air introduction rate in the area A, the higher the ratio of the air volume of the outside air OA to the air volume of the supply air SA. For example, in the state shown in FIG. 31, the maximum value of the outside air introduction rate in areas A1 to A3 is 20%, and the ratio of the volume of outside air OA to the volume of supply air SA is 20%. In the state shown in FIG. 32, the maximum value of the outside air introduction rate in areas A1 to A3 is 10%, and the ratio of the volume of outside air OA to the volume of supply air SA is 10%.

Therefore, the control unit 110 determines the area A to be used by the user U and equalizes the outside air introduction rate, thereby reducing the ratio of the air volume of the outside air OA to the air volume of the supply air SA. It is possible to suppress the amount of outside air OA introduced into the air. This suppresses excessive intake of outside air OA into each area A, so that the temperature of mixed air MA can be brought close to the temperature of indoor air RA during cooling operation. Therefore, the capacity of the chiller 121 and the secondary pump 122 can be suppressed, so the power consumption of the entire air conditioning system 20 is suppressed.

In the case of FIGS. 31 and 32, the guide of the facility 10 who has received a notification from the area notification system 100 regarding how to use the facility 10 guides the user U2 from area A1 to area A3. Alternatively, the user U2 who has received a notification from the area notification system 100 regarding how to use the facility 10 moves from area A1 to area A3.

(4) Effects The area notification system 100 of this embodiment can optimize the overall operating efficiency of the air conditioning system 20 that performs air conditioning across multiple areas A. Specifically, the area notification system 100 controls the facility 10 based on at least one of the processing load, heat transfer efficiency, and outside air introduction rate of the air conditioning system 20 so that the power consumption of the entire air conditioning system 20 is suppressed. You can decide how to use it. The air conditioning system 20 controls the opening degrees of the outside air damper 123a and the supply air damper 125a, and the capacity of the ventilation fan 123b, based on the usage method of the facility 10 determined by the area notification system 100. Thereby, the air conditioning management system 190 using the area notification system 100 can efficiently perform energy saving control to suppress the amount of power consumed by the air conditioning system 20.

-Fourth embodiment-
The area notification system 100 of this embodiment has the same basic configuration and operation as the area notification system 100 of the third embodiment, so the following description will focus on the differences between the two.

In this embodiment, an air conditioning management system 190 using the area notification system 100 includes a plurality of air conditioning systems 20. In a facility 10 where the area notification system 100 is used, a plurality of air conditioning systems 20 for adjusting the air environment (temperature, humidity, air volume, etc.) of a plurality of areas A are installed. Each air conditioning system 20 includes one refrigeration cycle (refrigerant system) in which a plurality of utilization units 23 are connected to one heat source unit 21 . Therefore, in this embodiment, a plurality of refrigerant systems are installed in the facility 10. Each refrigerant system is independent from each other.

Each air conditioning system 20 has a heat source unit 21 and a utilization unit 23 similar to the third embodiment. The heat source unit 21 is a unit mainly composed of a chiller 121, a secondary pump 122, an AHU 123, and a duct 124. The usage unit 23 is VAV125.

Each air conditioning system 20 can air condition the facility 10 across multiple areas A within the facility 10. However, the plurality of air conditioning systems 20 do not air condition the common area A. In other words, the areas A that are air-conditioned by each air conditioning system 20 do not overlap with each other.

The area notification system 100 is used to control the plurality of air conditioning systems 20 installed across the plurality of areas A based on the overall operating efficiency. The area notification system 100 uses the input information input to the input unit 120 to determine the area A that the user U should use according to predetermined rules so that the power consumption of each air conditioning system 20 is as small as possible. do. The area notification system 100 notifies the guide of the facility 10 or the user U of information regarding the area A that the user U should use via the output unit 130, and notifies each air conditioning system 20 via the setting unit 140. It may also be sent to the centralized controller 26.

Next, a specific example of a process in which the control unit 110 determines how to use the facility 10 based on each of the heat transfer efficiency and device efficiency of the plurality of air conditioning systems 20 will be described. Any one of the processes described below may be used alone, or a plurality of processes may be used in combination.

(1) Processing Based on Heat Transfer Efficiency In processing based on the heat transfer efficiency of the air conditioning systems 20, the control unit 110 determines the usage method of the facility 10 that maximizes the heat transfer efficiency of each air conditioning system 20. Thereby, the capacity of the blower fan 123b of the AHU 123 of each air conditioning system 20 can be suppressed, so the power consumption of the plurality of air conditioning systems 20 as a whole is suppressed.

In the following specific example, it is assumed that the facility 10 is installed with two air conditioning systems 20 consisting of a first air conditioning system 20a and a second air conditioning system 20b. The control unit 110 controls the facilities 10 so that the processing loads of the plurality of VAVs 125 connected to the AHU 123 of one heat source unit 21 are equalized in each of the first air conditioning system 20a and the second air conditioning system 20b. Decide how to use it.

In this process, the control unit 110 switches the area A used by the user U so that the processing load of the VAV 125 of the plurality of areas A is equalized for each air conditioning system 20, and Decide which area A should be. The control unit 110 acquires information regarding the position of area A based on the building drawing information stored in the storage unit 150. The control unit 110 acquires installation information that associates the VAV 125 with the area A based on the equipment drawing information stored in the storage unit 150. The control unit 110 acquires environmental permissible information, usage information, etc. of the user U based on the operation information stored in the storage unit 150. In this embodiment, the user U's permissible temperature level is used as the user U's environmental permissible information. The user U's allowable temperature level represents the degree to which the user U can allow the setting temperature of the area A to be relaxed.

In FIGS. 33 and 34, the facility 10 has a plurality of rooms (here, 10 rooms) divided by walls and doors. Each room corresponds to one of areas A1 to A10, and areas A1 to A5 are air conditioned by the first air conditioning system 20a, and areas A6 to A10 are air conditioned by the second air conditioning system 20b. Ru. One VAV 125 connected to the common AHU 123 of the first air conditioning system 20a is installed in each area A1 to A5. One VAV 125 is installed in each area A6 to A10, which is connected to the common AHU 123 of the second air conditioning system 20b.

Before determining how to use the facility 10, as shown in FIG. 33, users U1 to U10 are using areas A1 to A10, respectively. The allowable temperature level differs depending on the users U1 to U10. The permissible temperature level is either a "strong" level that allows the temperature to be relaxed to the normal level in the areas A1 to A10, or a "weak" level that does not allow the temperature to be relaxed to the normal level in the areas A1 to A10. For example, in FIG. 33, the allowable temperature levels for users U4 to U5 and U8 to U10 are "strong," and the allowable temperature levels for users U1 to U3 and U6 to U7 are "weak." During cooling operation, users U4-U5, U8-U10 whose allowable temperature level is "strong" are allowed to set a higher temperature than users U1-U3, U6-U7 whose allowable temperature level is "weak". can. For example, users U4-U5 and U8-U10 whose allowable temperature level is "strong" can tolerate set temperatures up to 28°C, and users U1-U3, U6-U7 whose allowable temperature level is "weak" Can tolerate set temperatures up to 24°C. In FIGS. 33 and 34, below each area A1 to A10, the maximum value of the set temperature that users U1 to U10 using the area can tolerate during cooling operation is listed.

During cooling operation, the higher the temperature (set temperature) of the air supplied from the VAV 125 is, the more the evaporation temperature in the refrigeration cycle of the chiller 121 can be relaxed. However, the evaporation temperature is determined according to the lowest set temperature among the set temperatures of area A where a plurality of VAVs 125 connected to the same refrigerant system (air conditioning system 20) are installed. Therefore, as in the first air conditioning system 20a shown in FIG. 33, if there is even one area A1 to A3 used by users U1 to U3 whose allowable temperature level is "weak", the entire first air conditioning system 20a cannot moderate the evaporation temperature. Similarly, in the second air conditioning system 20b shown in FIG. 33, there are areas A6 to A7 used by users U6 to U7 whose allowable temperature level is "weak", so the evaporation temperature of the entire second air conditioning system 20b is cannot be relieved.

However, as shown in FIG. 34, the control unit 110 switches the users U1 to U10 so that the users U1 to U10 with the same allowable temperature level can How to use the facility 10 is determined so that A10 can be used. In FIG. 34, users U1 to U3 and U6 to U7 whose allowable temperature level is "weak" use areas A1 to A5 whose air conditioning is controlled by the first air conditioning system 20a. Furthermore, users U4 to U5 and U8 to U10 whose allowable temperature level is "strong" use areas A6 to A10 whose air conditioning is controlled by the second air conditioning system 20b. As a result, the processing load on the VAV 125 of each air conditioning system 20 is leveled, and the evaporation temperature of the entire second air conditioning system 20b is relaxed. For example, the evaporation temperatures of the first air conditioning system 20a and the second air conditioning system 20b in the state shown in FIG. 34 are 7°C. On the other hand, the evaporation temperature of the first air conditioning system 20a in the state shown in FIG. 34 is 7°C, and the evaporation temperature of the second air conditioning system 20b is 9°C. Therefore, the area notification system 100 can reduce the evaporation temperature of the second air conditioning system 20b by leveling the processing load of the VAV 125 of each air conditioning system 20.

The control unit 110 can perform control to level out the opening degrees of the supply air dampers 125a of the VAVs 125 of each air conditioning system 20 by leveling the processing loads of the VAVs 125 of each air conditioning system 20. The control for leveling the opening degree of the supply air damper 125a is control for reducing the standard deviation of the opening degree of the supply air damper 125a. The smaller the standard deviation, the greater the leveling of the opening degree of the supply air damper 125a.

In each air conditioning system 20, by equalizing the opening degree of the supply air damper 125a of each VAV 125, it becomes possible to uniformly increase the opening degree of the supply air damper 125a of each VAV 125. This makes it possible to reduce the resistance of the air supply damper 125a of each VAV 125 when the air sent out from the AHU 123 passes through each VAV 125. As a result, the heat transfer efficiency of the air sent out from the AHU 123 and flowing through the duct 124 is improved, and the ability of the blower fan 123b to pass the required amount of air to each VAV 125 can be reduced.

Therefore, the area notification system 100 can increase the heat transfer efficiency of the plurality of air conditioning systems 20 as a whole, and thus can suppress the power consumption of the plurality of air conditioning systems 20 as a whole.

In this embodiment, the allowable temperature level of the user U is used as the environmental allowable information of the user U, but the allowable air volume level of the user U may be used instead. The user U's permissible air volume level represents the degree to which the user U can allow the set air volume of the area A to be relaxed.

(2) Processing based on equipment efficiency In processing based on the equipment efficiency of the air conditioning system 20, the control unit 110 controls the facility where the equipment efficiency of each air conditioning system 20 is maximized within the range of equipment efficiency constraints of each air conditioning system 20. Decide how to use 10. Thereby, the capacity of the blower fan 123b of the AHU 123 of each air conditioning system 20 can be suppressed, so the power consumption of the plurality of air conditioning systems 20 as a whole is suppressed.

In the following specific example, it is assumed that the facility 10 is installed with two air conditioning systems 20 consisting of a first air conditioning system 20a and a second air conditioning system 20b. The control unit 110 determines how to use the facility 10 so that the load of the blower fan 123b of the AHU 123 is distributed between the first air conditioning system 20a and the second air conditioning system 20b.

In this process, the control unit 110 changes the number of VAVs 125 operating in each of the plurality of air conditioning systems 20 so that the operating efficiency (equipment efficiency) of each of the blower fans 123b of the plurality of air conditioning systems 20 is as high as possible. . The control unit 110 acquires information regarding the position of area A based on the building drawing information stored in the storage unit 150. The control unit 110 acquires installation information that associates the VAV 125 with the area A based on the equipment drawing information stored in the storage unit 150. The control unit 110 acquires usage information of the user U based on the operation information stored in the storage unit 150.

In FIGS. 35 and 36, the facility 10 has a plurality of rooms (here, 10 rooms) partitioned by walls and doors. Each room corresponds to one of areas A1 to A10, and areas A1 to A5 are air conditioned by the first air conditioning system 20a, and areas A6 to A10 are air conditioned by the second air conditioning system 20b. Ru. One VAV 125 connected to the common AHU 123 of the first air conditioning system 20a is installed in each area A1 to A5. One VAV 125 is installed in each area A6 to A10, which is connected to the common AHU 123 of the second air conditioning system 20b.

Before deciding how to use the facility 10, as shown in FIG. 35, users U1 to U4 are respectively using areas A1 to A4. Areas A5 to A10 are not used. Therefore, the system load factor of the first air conditioning system 20a is 80%, and the system load factor of the second air conditioning system 20b is 0%. The system load factor is the ratio of the number of operating VAVs 125 to all the VAVs 125 included in the air conditioning system 20 (refrigerant system). In the case of the first air conditioning system 20a, among the five VAVs 125 installed in areas A1 to A5, only the VAVs 125 installed in areas A1 to A4 are in operation, so the system load factor is 80%.

However, as shown in FIG. 36, the control unit 110 decides how to use the facility 10 by replacing the users U1 to U4. As a result, users U1 to U2 can use areas A1 to A2 where the VAV 125 of the first air conditioning system 20a is installed, and users U3 to U4 can use areas A6 to A2 where the VAV 125 of the second air conditioning system 20b is installed. A7 can be used. In this case, the system load factors of the first air conditioning system 20a and the second air conditioning system 20b are both 40%.

In each air conditioning system 20, the power consumption of the blower fan 123b of the AHU 123 is proportional to the cube of the air supply amount, which is the amount of air that the blower fan 123b sends out to each VAV 125. In each air conditioning system 20, the supply air amount is proportional to the system load factor. Therefore, in order to operate the blower fan 123b at a capacity lower than the rated capacity, the power consumption of the blower fan 123b of the AHU 123 of each air conditioning system 20 is reduced by distributing the system load factor among the plurality of air conditioning systems 20. be able to.

Therefore, by determining how to use the facility 10, the control unit 110 can distribute the system load factor among the plurality of air conditioning systems 20 and increase the equipment efficiency of each air conditioning system 20. Therefore, the area notification system 100 can suppress the power consumption of the plurality of air conditioning systems 20 as a whole.

(3) Effects The area notification system 100 of this embodiment can optimize the overall operating efficiency of the plurality of air conditioning systems 20 that perform air conditioning across the plurality of areas A. Specifically, the area notification system 100, based on at least one of the heat transfer efficiency and equipment efficiency of each of the plurality of air conditioning systems 20, so that the power consumption of the plurality of air conditioning systems 20 as a whole is suppressed, How to use the facility 10 can be determined. Each air conditioning system 20 controls the opening degree of the outside air damper 123a and the supply air damper 125a, and the capacity of the ventilation fan 123b, based on the usage method of the facility 10 determined by the area notification system 100. Thereby, the air conditioning management system 190 using the area notification system 100 can efficiently perform energy saving control to suppress the power consumption of the plurality of air conditioning systems 20.

-Fifth embodiment-
The area notification system 100 of this embodiment has the same basic configuration and operation as the area notification system 100 of the fourth embodiment, so the following description will focus on the differences between the two.

In this embodiment, an air conditioning management system 190 using the area notification system 100 includes a plurality of air conditioning systems 20. In a facility 10 where the area notification system 100 is used, a plurality of air conditioning systems 20 for adjusting the air environment (temperature, humidity, air volume, etc.) of a plurality of areas A are installed. Each air conditioning system 20 includes one refrigeration cycle (refrigerant system) in which a plurality of utilization units 23 are connected to one heat source unit 21 . Therefore, in this embodiment, a plurality of refrigerant systems are installed in the facility 10. Each refrigerant system is independent from each other.

In this embodiment, the air conditioning system 20 transports heat using water as a medium. The air conditioning system 20 mainly includes a chiller 221, a fan coil unit (FCU) 222, and a secondary pump 223. In each air conditioning system 20, a plurality of FCUs 222 are connected to one chiller 221. The heat source unit 21 is a unit mainly composed of a chiller 221 and a secondary pump 223. The usage unit 23 is the FCU 222. One FCU 222 is installed in each area A within the facility 10.

Like the chiller 121 of the third embodiment, the chiller 221 includes a compressor that compresses the refrigerant circulating in the refrigeration cycle. The chiller 221 adjusts the temperature of the heat transfer medium by heat exchange with the refrigerant circulating in the refrigeration cycle. The heat transfer medium is a liquid that circulates while passing through chiller 221 and FCU 222 . In this embodiment, the heat transfer medium is water.

Water whose temperature has been adjusted by the chiller 221 is sent to each FCU 222 by a secondary pump 223. The FCU 222 mainly includes a coil and a fan. The coil of the FCU 222 exchanges heat between the air taken in from area A and the water sent from the chiller 221. The fan of the FCU 222 returns air taken from area A and whose temperature has been adjusted by a coil to area A. Each FCU 222 further includes a valve provided in a pipe through which water sent from the chiller 221 flows. The valve of the FCU 222 is, for example, a solenoid valve. When the valve of an FCU 222 is closed, no heat exchange occurs in that FCU 222. When the valve of the FCU 222 is open, heat exchange is performed in that FCU 222. When FCU 222 is operating, the valves of FCU 222 are open.

Each air conditioning system 20 can air condition the facility 10 across multiple areas A within the facility 10. However, the plurality of air conditioning systems 20 do not air condition the common area A. In other words, the areas A that are air-conditioned by each air conditioning system 20 do not overlap with each other.

The area notification system 100 is used to control the plurality of air conditioning systems 20 installed across the plurality of areas A based on the overall operating efficiency. The area notification system 100 uses the input information input to the input unit 120 to determine the area A that the user U should use according to predetermined rules so that the power consumption of each air conditioning system 20 is as small as possible. do. The area notification system 100 notifies the guide of the facility 10 or the user U of information regarding the area A that the user U should use via the output unit 130, and notifies each air conditioning system 20 via the setting unit 140. It may also be sent to the centralized controller 26.

Next, a specific example of a process in which the control unit 110 determines how to use the facility 10 based on each of the heat transfer efficiency and equipment efficiency of the plurality of air conditioning systems 20 will be described. Any one of the processes described below may be used alone, or a plurality of processes may be used in combination.

(1) Processing Based on Heat Transfer Efficiency In processing based on the heat transfer efficiency of the air conditioning systems 20, the control unit 110 determines the usage method of the facility 10 that maximizes the heat transfer efficiency of each air conditioning system 20. Thereby, the operating efficiency of the secondary pump 223 of each air conditioning system 20 can be improved, so the power consumption of the plurality of air conditioning systems 20 as a whole is suppressed.

In the following specific example, it is assumed that the facility 10 is installed with two air conditioning systems 20 consisting of a first air conditioning system 20a and a second air conditioning system 20b. The control unit 110 determines the usage method of the facility 10 so that the maximum value of the head of the secondary pump 223 in operation is small. The lift of the secondary pump 223 is the height of water that the secondary pump 223 can pump. The secondary pump 223 supplies water whose temperature has been adjusted by the chiller 221 to the FCU 222 of the air conditioning system 20 . Therefore, the secondary pump 223 needs to pump the water sent from the chiller 221 to the height of the FCU 222 . Therefore, the lift of the secondary pump 223 corresponds to the height position of the FCU 222 with respect to the suction port of the secondary pump 223.

In this process, the control unit 110 switches the area A that the user U should use so that the maximum value of the pump head of the secondary pump 223 that is in operation becomes smaller. decide. The control unit 110 acquires information regarding the position of area A based on the building drawing information stored in the storage unit 150. The control unit 110 acquires installation information that associates the FCU 222 with the area A based on the equipment drawing information stored in the storage unit 150. The control unit 110 acquires usage information of the user U based on the operation information stored in the storage unit 150.

In FIGS. 37 and 38, the facility 10 has a plurality of rooms (here, 10 rooms) partitioned by walls and doors. Each room corresponds to one of areas A1 to A10, and areas A1 to A5 are air conditioned by the first air conditioning system 20a, and areas A6 to A10 are air conditioned by the second air conditioning system 20b. Ru. One FCU 222 connected to the common chiller 221 of the first air conditioning system 20a is installed in each area A1 to A5. One FCU 222 connected to the common chiller 221 of the second air conditioning system 20b is installed in each area A6 to A10.

In the facility 10, areas A1 to A5 are located higher than areas A6 to A10. The secondary pumps 223 of the first air conditioning system 20a and the second air conditioning system 20b are located at the same height. The FCU 222 installed in each area A1 to A5 is located 10 m above the suction port of the secondary pump 223 of the first air conditioning system 20a. The FCU 222 installed in each area A6 to A10 is located 5 m above the suction port of the secondary pump 223 of the second air conditioning system 20b. Therefore, when at least one of areas A1 to A5 is used, the lift height of the secondary pump 223 of the first air conditioning system 20a is 10 m. When at least one of areas A6 to A10 is used, the lift of the secondary pump 223 of the second air conditioning system 20b is 5 m.

Before deciding how to use the facility 10, as shown in FIG. 37, the user U1 uses area A1, and the user U2 uses area A6. Therefore, the head of the secondary pump 223 of the first air conditioning system 20a is 10 m, and the head of the secondary pump 223 of the second air conditioning system 20b is 5 m. Therefore, the maximum lift of the secondary pump 223 in operation is 10 m.

However, as shown in FIG. 38, the control unit 110 changes the area A used by the users U1 and U2 so that the maximum lift of the operating secondary pump 223 becomes shorter. Decide how to use 10. In FIG. 38, users U1 and U2 are respectively using areas A7 and A6 where the air conditioning is controlled by the second air conditioning system 20b. As a result, the area used by user U1 has been changed from area A1 to area A7. As a result, in FIG. 38, areas A1 to A5 are not used. Therefore, in FIG. 38, it is not necessary to operate the secondary pump 223 of the first air conditioning system 20a, and it is sufficient to operate only the secondary pump 223 of the second air conditioning system 20b. Therefore, in the state shown in FIG. 38, the maximum lift of the operating secondary pump 223 is 5 m. The shorter the maximum head of the secondary pumps 223 in operation, the smaller the total power consumption of the secondary pumps 223 of each air conditioning system 20. Therefore, since the area notification system 100 can improve the operating efficiency of each secondary pump 223, it is possible to suppress the power consumption of the plurality of air conditioning systems 20 as a whole.

Moreover, in each air conditioning system 20, the shorter the pump head of the secondary pump 223, the smaller the heat loss when the water whose temperature has been adjusted by the chiller 221 is conveyed to each FCU 222. Therefore, the area notification system 100 can increase the heat transfer efficiency of the entire plurality of air conditioning systems 20 by shortening the maximum head of the secondary pump 223 in operation. Overall power consumption can be suppressed.

(2) Processing Based on Equipment Efficiency In processing based on the equipment efficiency of the air conditioning systems 20, the control unit 110 determines the usage method of the facility 10 that maximizes the equipment efficiency of each air conditioning system 20. Thereby, the capacity of the chiller 221 and the secondary pump 223 of each air conditioning system 20 can be suppressed, so the power consumption of the plurality of air conditioning systems 20 as a whole is suppressed.

In the following specific example, it is assumed that the facility 10 is installed with two air conditioning systems 20 consisting of a first air conditioning system 20a and a second air conditioning system 20b. The control unit 110 determines how to use the facility 10 so that the loads of the chiller 221 and the secondary pump 223 are distributed between the first air conditioning system 20a and the second air conditioning system 20b.

In this process, the control unit 110 controls the FCU 222 operating in each of the plurality of air conditioning systems 20 so that the operating efficiency (equipment efficiency) of each chiller 221 and secondary pump 223 of the plurality of air conditioning systems 20 is as high as possible. Change the number. The control unit 110 acquires information regarding the position of area A based on the building drawing information stored in the storage unit 150. The control unit 110 acquires installation information that associates the FCU 222 with the area A based on the equipment drawing information stored in the storage unit 150. The control unit 110 acquires usage information of the user U based on the operation information stored in the storage unit 150.

In FIGS. 39 and 40, the facility 10 has a plurality of rooms (here, 10 rooms) partitioned by walls and doors. Each room corresponds to one of areas A1 to A10, and areas A1 to A5 are air conditioned by the first air conditioning system 20a, and areas A6 to A10 are air conditioned by the second air conditioning system 20b. Ru. One FCU 222 connected to the common chiller 221 of the first air conditioning system 20a is installed in each area A1 to A5. One FCU 222 connected to the common chiller 221 of the second air conditioning system 20b is installed in each area A6 to A10.

Before deciding how to use the facility 10, as shown in FIG. 39, users U1 to U5 use areas A1 to A5, respectively, and user U6 uses area A6. Areas A7 to A10 are not used. Therefore, the system load factor of the first air conditioning system 20a is 100%, and the system load factor of the second air conditioning system 20b is 20%. The system load factor is the ratio of the number of operating FCUs 222 to all the FCUs 222 included in the air conditioning system 20 (refrigerant system). In the case of the second air conditioning system 20b, among the five FCUs 222 installed in areas A6 to A10, only the FCU 222 installed in area A6 is operating, so the system load factor is 20%.

However, as shown in FIG. 40, the control unit 110 decides how to use the facility 10 by replacing the users U1 to U6. As a result, users U1 to U3 can use areas A1 to A3 where the FCU 222 of the first air conditioning system 20a is installed, and users U4 to U6 can use areas A4 to A3 where the FCU 222 of the second air conditioning system 20b is installed. A6 can be used. In this case, the system load factors of the first air conditioning system 20a and the second air conditioning system 20b are both 60%.

The operating efficiency COP of the chiller 221 shows the same tendency as the operating efficiency COP of the outdoor unit 22 shown in FIG. 21. In other words, the operating efficiency COP of the chiller 221 becomes maximum when the system load factor of the air conditioning system 20 is around 50%. Therefore, as shown in FIG. 21, the operating efficiency COP of the chiller 221 when the system load factor of the air conditioning system 20 is 60% is the operating efficiency COP of the chiller 221 when the system load factor of the air conditioning system 20 is 20% or 100%. Higher operating efficiency than COP. Therefore, the operating efficiency COP of the chiller 221 of each air conditioning system 20 is higher in the state shown in FIG. 40 than in the state shown in FIG.

Therefore, by determining how to use the facility 10, the control unit 110 can distribute the system load factor among the plurality of air conditioning systems 20 and increase the equipment efficiency of each air conditioning system 20. Therefore, the area notification system 100 can suppress the power consumption of the plurality of air conditioning systems 20 as a whole.

Furthermore, the smaller the number of FCUs 222 operating in each air conditioning system 20, the lower the load per refrigerant system. As a result, the amount of heat processed by the chiller 221 and the processed flow rate of the secondary pump 223 in each air conditioning system 20 are reduced, so the power consumption of the chiller 221 and the secondary pump 223 is reduced. Therefore, the area notification system 100 can reduce the load per system of the plurality of air conditioning systems 20 and suppress the power consumption of the plurality of air conditioning systems 20 as a whole.

(3) Effects The area notification system 100 of this embodiment can optimize the overall operating efficiency of the plurality of air conditioning systems 20 that perform air conditioning across the plurality of areas A. Specifically, the area notification system 100, based on at least one of the heat transfer efficiency and equipment efficiency of each of the plurality of air conditioning systems 20, so that the power consumption of the plurality of air conditioning systems 20 as a whole is suppressed, How to use the facility 10 can be determined. Each air conditioning system 20 controls the capacity of the chiller 221 and the secondary pump 223 based on the usage method of the facility 10 determined by the area notification system 100. Thereby, the air conditioning management system 190 using the area notification system 100 can efficiently perform energy saving control to suppress the power consumption of the plurality of air conditioning systems 20.

-Modified example-
Modifications of the embodiment are shown below. Part or all of the contents of each modification may be combined with the contents of other modifications to the extent that they do not contradict each other.

(1) Modification A
In the second embodiment, when a plurality of areas A whose air conditioning is controlled by a plurality of air conditioning systems 20 are included in the same space, the control unit 110 controls the facility so that the processing load of each air conditioning system 20 is minimized. 10 usage methods may be determined.

In FIGS. 41 and 42, facility 10 has a room including ten areas A1 to A10. Two air conditioning systems 20 are installed in the facility 10, including a first air conditioning system 20a and a second air conditioning system 20b. The first air conditioning system 20a includes one outdoor unit 22a and five indoor units 24a installed in areas A1 to A5, respectively. The second air conditioning system 20b includes one outdoor unit 22b and five indoor units 24b installed in areas A6 to A10, respectively.

Before deciding how to use the facility 10, as shown in FIG. 41, the users U1 to U6 are respectively using areas A1, A3, A5, A6, A8, and A10. In this state, only the indoor units 24a and 24b in the utilized areas A1, A3, A5, A6, A8, and A10 are operating. In this case, assuming that the air conditioning load of each of the areas A1, A3, A5, A6, A8, and A10 being used is 1.5kW, the processing load of the two air conditioning systems 20a, 20b (the air conditioning load of areas A1 to A10) is 1.5kW. total) is 9.0kW. In FIGS. 41 and 42, for the indoor units 24a and 24b of the area being used, the air conditioning load of the area is written.

However, as shown in FIG. 42, the control unit 110 changes the layout of the facility 10 so that the users U1 to U6 use areas A1 to A3 and A6 to A8 by changing the arrangement of the users U1 to U6. Decide how to use it. In this case, since the areas A1 to A3 and A6 to A8 being used are adjacent to each other, the processing load on the two air conditioning systems 20a and 20b can be suppressed. In particular, area A2 is adjacent to used areas A1 and A3, and area A7 is adjacent to used areas A6 and A8, so compared with other areas A1, A3, A6, and A8. The processing load is small. Therefore, for example, the air conditioning load in each of areas A1, A3, A6, and A8 is 1.3 kW, and the air conditioning load in areas A2 and A7 is 1.2 kW. In this case, the processing load of the two air conditioning systems 20a and 20b (the total of the air conditioning loads of areas A1 to A10) is 7.6 kW.

Therefore, the control unit 110 can reduce the processing load of the two air conditioning systems 20a and 20b by 1 by changing the arrangement of the users U1 to U6 and preferentially using the mutually adjacent areas A1 to A3 and A6 to A8. It is possible to decide how to use the facility 10 so as to reduce the amount by .4kW. The guide of the facility 10, who has received notification from the area notification system 100 regarding how to use the facility 10, guides the users U1 to U6 to areas A1 to A3 and A6 to A8. Alternatively, users U1 to U6 who have received notification from the area notification system 100 regarding how to use the facility 10 move to areas A1 to A3 and A6 to A8. Based on the information received from the area notification system 100, the central controller 26 of the air conditioning system 20 stops the operation of the indoor units 24 in areas A5 and A10, and starts the operation of the indoor units 24 in areas A2 and A7. Thereby, the area notification system 100 can suppress the power consumption of the plurality of air conditioning systems 20 as a whole.

(2) Modification B
In the second embodiment, when a plurality of areas A whose air conditioning is controlled by a plurality of air conditioning systems 20 are included in the same space, the control unit 110 equalizes the processing load of the indoor units 24 of each air conditioning system 20. The usage method of the facility 10 may be determined so that the facility 10 is used.

In FIGS. 43 and 44, facility 10 has a room including ten areas A1 to A10. Two air conditioning systems 20 are installed in the facility 10, including a first air conditioning system 20a and a second air conditioning system 20b. The first air conditioning system 20a includes one outdoor unit 22a and five indoor units 24a installed in areas A1 to A5, respectively. The second air conditioning system 20b includes one outdoor unit 22b and five indoor units 24b installed in areas A6 to A10, respectively.

Before deciding how to use the facility 10, as shown in FIG. 43, the users U1 to U6 are respectively using areas A1, A3, A5, A6, A8, and A10. In this state, only the indoor units 24a and 24b in the utilized areas A1, A3, A5, A6, A8, and A10 are operating. In this case, assuming that the air conditioning load of each of the areas A1, A3, A5, A6, A8, and A10 being used is 1.5kW, the processing load of the two air conditioning systems 20a, 20b (the air conditioning load of areas A1 to A10) is 1.5kW. total) is 9.0kW. In FIGS. 43 and 44, for the indoor units 24a and 24b of the area being used, the air conditioning load of the area is written.

However, as shown in FIG. 44, the control unit 110 controls the facilities 10 so that the processing loads of the indoor units 24 of each air conditioning system 20 are equalized without changing the arrangement of the users U1 to U6. Decide how to use it. For example, in the first air conditioning system 20a, the air conditioning load on the areas A1, A3, and A5 that are in use is 1.0 kW, and the air conditioning load on the areas A2 and A4 that are not in use is 0.75 kW. Furthermore, in the second air conditioning system 20b, the air conditioning load in the areas A6, A8, and A10 that are in use is 1.0 kW, and the air conditioning load in the areas A7 and A9 that are not in use is 0.75 kW. As a result, the processing load on the indoor unit 24a of the first air conditioning system 20a and the processing load on the indoor unit 24b of the second air conditioning system 20b are equalized. In this case, the processing load of the two air conditioning systems 20a and 20b (the total of the air conditioning loads of areas A1 to A10) remains at 9.0 kW.

Therefore, the control unit 110 equalizes the processing load of the indoor units 24 of each air conditioning system 20 to reduce the evaporation temperature of each air conditioning system 20 and increase the refrigeration efficiency of the plurality of air conditioning systems 20 as a whole. How to use the facility 10 can be determined. The central controller 26 of the air conditioning system 20 equalizes the processing loads of the indoor units 24 in areas A1 to A10 based on the information received from the area notification system 100. Thereby, the area notification system 100 can suppress the power consumption of the plurality of air conditioning systems 20 as a whole.

(3) Modification C
In the second embodiment, the control unit 110 may perform arbitrary processing for each of the plurality of air conditioning systems 20 that the control unit 110 uses in the first embodiment to determine how to use the facility 10. good.

For example, in the second embodiment, the control unit 110 executes the process described in the section "(4-1-1) Processing based on air conditioning area" in the first embodiment for each air conditioning system 20. It's okay. In this case, the control unit 110 can determine the usage method of the facility 10 that minimizes the processing load on each air conditioning system 20.

Similarly, the control unit 110 performs "(4-1-2) Processing based on area position" and "(4-1-3) Processing based on through flow load" in the first embodiment for each air conditioning system 20. ”, “(4-2-1) Processing to change the placement of user U” and “(4-2-2) Processing to change the placement of user U”. Good too.

(4) Modification D
In the first embodiment, the control unit 110 may calculate the processing load of the air conditioning system 20 and select the indoor unit 24 to operate within the range of processing load that the air conditioning system 20 can tolerate.

In the second embodiment, the control unit 110 calculates the processing load of each of the plurality of air conditioning systems 20, and selects the indoor unit 24 to operate within the range of processing load that each of the plurality of air conditioning systems 20 can tolerate. It's okay.

(5) Modification E
In the first embodiment, the control unit 110 may calculate the refrigeration efficiency of the air conditioning system 20 and select the indoor unit 24 to operate within the range of refrigeration efficiency that the air conditioning system 20 can tolerate.

In the second embodiment, the control unit 110 calculates the refrigeration efficiency of each of the plurality of air conditioning systems 20, and selects the indoor unit 24 to operate within the range of refrigeration efficiency that each of the plurality of air conditioning systems 20 can tolerate. It's okay.

(6) Modification F
In the first embodiment, the control unit 110 may calculate the equipment efficiency of the air conditioning system 20 and select the indoor unit 24 to operate within the range of equipment efficiency that the air conditioning system 20 can tolerate.

In the second embodiment, the control unit 110 calculates the equipment efficiency of each of the plurality of air conditioning systems 20, and selects the indoor unit 24 to operate within the range of equipment efficiency that each of the plurality of air conditioning systems 20 can tolerate. It's okay.

(7) Modification example G
In the fourth embodiment, the control unit 110 may perform arbitrary processing for each of the plurality of air conditioning systems 20 that the control unit 110 uses in the third embodiment to determine how to use the facility 10. good.

For example, in the fourth embodiment, the control unit 110 controls each air conditioning system 20 to perform "(1) processing based on processing load", "(2) processing based on heat transfer efficiency", and "processing based on heat transfer efficiency" in the third embodiment. (3) Processing based on outside air introduction rate" may be executed. When a combination of multiple processes is used, it is preferable that the processes are executed in the following order: process based on processing load, process based on heat transfer efficiency, process based on equipment efficiency, and process based on outside air introduction rate. .

(8) Modification H
In the first to fifth embodiments, the area notification system 100 may be used as an energy management support tool. In this case, for example, the energy management consultant uses the area notification system 100 to present suggestions for improving the energy management of the facility 10 to the customer. In this modification, the air conditioning system 20 does not need to include the centralized controller 26.

The information input to the input unit 120 is mainly building drawing information, equipment drawing information, and operation information. The operation information includes usage information of area A within the facility 10. The area A usage information relates to area A operating rules, for example. The operation rule for area A is, for example, information regarding the arrangement of a plurality of areas A in which the temperature settings of the indoor units 24 are different from each other. In this case, the operation rule for area A is set based on information regarding users U who have different maximum allowable set temperatures during cooling operation.

The information output to the output unit 130 is, for example, information regarding how to use the facility 10 and a predicted value of the power consumption of the air conditioning system 20. When the operational information relates to the operational rules for area A, the information regarding how to use the facility 10 is, for example, area A for user U whose maximum allowable set temperature during cooling operation is 28°C; and information regarding the arrangement of area A for user U whose maximum value is 24°C. The area notification system 100 determines a usage method of the facility 10 that minimizes the predicted value of the power consumption of the air conditioning system 20 based on the information input to the input unit 120. The consultant presents a proposal regarding how to use the facility 10 to the customer based on the information output to the output unit 130.

(9) Modification I
In the first to fifth embodiments, the area notification system 100 may be used to manage schedules regarding the use of the facility 10. In this case, for example, the area notification system 100 allocates the available area A to the user U based on the reservation status of the use of area A in the facility 10, and controls the air conditioning system 20 based on the schedule.

The information input to the input unit 120 is mainly building drawing information, equipment drawing information, weather information, and reservation information. The reservation information is information regarding reservations for use of area A. The reservation information includes, for example, information regarding the user U who has reserved the use of the area A, and information regarding the desired time slot for using the area A. When the area notification system 100 is linked with an area reservation system, the user U may input, change, cancel, etc. reservation information using the area reservation system.

The information output to the output unit 130 is, for example, schedule information regarding the use of area A and a predicted value of the power consumption of the air conditioning system 20. The schedule information includes, for example, information regarding the location of area A that should be used by user U who has made a reservation to use area A, and the available time slot for area A. Area notification system 100 determines schedule information that minimizes the predicted value of power consumption of air conditioning system 20 based on information input to input unit 120. The area notification system 100 may control the air conditioning system 20 based on the schedule information output to the output unit 130.

―Conclusion―
Although the embodiments of the present disclosure have been described above, it will be understood that various changes in form and details can be made without departing from the spirit and scope of the present disclosure as described in the claims. .

10: Facility 20: Air conditioning system (first air conditioning system)
21: Heat source unit 23: Utilization unit 100: Area notification system 110: Control unit A (A1, A2,...): Area U (U1, U2,...): User

Japanese Patent Application Publication No. 2013-246702

Claims (16)

Notifying the users (U1, U2, . . . ) of the facility (10) of the first area that they should use from among the plurality of areas (A1, A2, . . . ) in the facility. An area notification system that
In the facility where air conditioning is performed across the plurality of areas using a first air conditioning system (20) in which a plurality of usage units (23) are connected to one heat source unit (21), each of the plurality of areas When the usage unit is installed in the area and the first air conditioning system is used, the power consumption of the first air conditioning system is reduced based on installation information linking the usage unit and the area. comprising a control unit (110) that notifies the first area ;
The control unit determines the first area so that a degree of leveling of processing loads of the usage units installed in each of the plurality of areas is increased.
Area notification system (100). The control unit notifies the first area so that the power consumption of the first air conditioning system is reduced based on the usage status of the facility by the user.
The area notification system according to claim 1. The facility is air-conditioned using only the first air conditioning system,
The control unit includes:
Based on at least one of installation information of the first air conditioning system, layout information of the facility, operation information of the first air conditioning system, usage status of the facility by the user, and environmental information of the facility, Calculate at least one of the processing load, refrigeration efficiency, equipment efficiency, heat transfer efficiency, and outside air introduction rate of the first air conditioning system,
Based on the calculation results, derive operating information of the plurality of usage units so that the power consumption of the first air conditioning system is reduced;
Selecting the usage unit to be operated from the plurality of usage units based on the derived operation information,
Notifying the first area based on the selected usage unit;
The area notification system according to claim 1 or 2. Notifying the users (U1, U2, . . . ) of the facility (10) of the first area that they should use from among the plurality of areas (A1, A2, . . . ) in the facility. An area notification system that
In the facility where air conditioning is performed across the plurality of areas using a plurality of air conditioning systems (20), when the plurality of air conditioning systems are used, the total power consumption of each of the plurality of air conditioning systems is comprising a control unit (110) that notifies the first area so that the first area becomes smaller;
Each of the plurality of air conditioning systems has a plurality of utilization units (23) connected to one heat source unit (21),
The usage unit is installed in each of the plurality of areas,
The control unit notifies the first area based on installation information linking the usage unit and the area ,
The control unit determines the first area so that a degree of leveling of processing loads of the usage units installed in each of the plurality of areas is increased.
Area notification system (100). The control unit notifies the first area based on the usage status of the facility by the user.
The area notification system according to claim 4. The control unit includes:
at least one of installation information of each of the plurality of air conditioning systems, layout information of the facility, operation information of each of the plurality of air conditioning systems, usage status of the facility by the user, and environmental information of the facility. Based on the above, at least one of the processing load, refrigeration efficiency, equipment efficiency, and heat transfer efficiency of each of the plurality of air conditioning systems is calculated,
Notifying the first area based on the calculation result;
The area notification system according to claim 4 or 5 . The control unit includes:
Selecting the operating units so that the number of the air conditioning systems having the operating units is reduced by changing the number of the operating units in each of the plurality of air conditioning systems;
Notifying the first area based on the selected usage unit;
The area notification system according to any one of claims 4 to 6. The control unit includes:
Calculating the processing load of each of the plurality of air conditioning systems,
selecting the utilization unit that operates within a maximum processing load that each of the plurality of air conditioning systems can tolerate;
The area notification system according to claim 7. The control unit includes:
Calculating the equipment efficiency of each of the plurality of air conditioning systems,
selecting the utilization unit to be operated so that the equipment efficiency of each of the plurality of air conditioning systems is maximized;
The area notification system according to claim 7 or 8. The control unit includes:
Obtain environmental tolerance information of the user;
Based on the obtained environmental tolerance information, the first area is notified so that the users whose environmental tolerance information falls within a predetermined range use the area where the same air conditioning system operates;
The area notification system according to any one of claims 4 to 6. The control unit adjusts at least one of a refrigerant temperature, a supply air volume, an air volume, and a set temperature of the air conditioning system based on the environmental tolerance information of the user.
The area notification system according to claim 10. The control unit includes:
Calculating the processing load of each of the plurality of air conditioning systems,
adjusting the refrigerant temperature or supply air amount of each of the plurality of air conditioning systems based on the processing load of each of the plurality of air conditioning systems;
The area notification system according to claim 11. The control unit includes:
Calculating the equipment efficiency of each of the plurality of air conditioning systems,
adjusting the refrigerant temperature or supply air amount of each of the plurality of air conditioning systems based on a range of equipment efficiency constraints of each of the plurality of air conditioning systems;
The area notification system according to claim 11 or 12. The environmental tolerance information is at least one of a temperature range, an air volume range, a time zone, and a demand event participation condition permitted by the user.
The area notification system according to any one of claims 10 to 13. The control unit includes:
Calculating the heat transfer efficiency of each of the plurality of air conditioning systems,
selecting the utilization unit to be operated so that the heat transfer efficiency of each of the plurality of air conditioning systems is maximized;
The area notification system according to any one of claims 4 to 6. The control unit includes:
Calculating the equipment efficiency of each of the plurality of air conditioning systems,
selecting the utilization unit to be operated so that the equipment efficiency of each of the plurality of air conditioning systems is maximized;
The area notification system according to any one of claims 4 to 6.