CN114034106B - Multi-unit control method and device and multi-unit equipment - Google Patents
Multi-unit control method and device and multi-unit equipment Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 50
- 238000005265 energy consumption Methods 0.000 claims abstract description 99
- 238000012790 confirmation Methods 0.000 claims abstract description 46
- 238000004378 air conditioning Methods 0.000 claims description 14
- 230000000694 effects Effects 0.000 abstract description 14
- 238000004088 simulation Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 230000005611 electricity Effects 0.000 description 7
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/46—Improving electric energy efficiency or saving
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/46—Improving electric energy efficiency or saving
- F24F11/47—Responding to energy costs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/52—Indication arrangements, e.g. displays
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
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Abstract
The invention relates to a multi-connected unit control method, a multi-connected unit control device and multi-connected unit equipment, which are characterized in that schedule reservation information and target energy consumption of target equipment in the multi-connected unit are firstly obtained, then the target energy consumption is distributed to a time period corresponding to the schedule reservation information to obtain target power consumption, then according to preset equipment parameters of the target equipment, analog power consumption in the time period corresponding to the schedule reservation information is obtained, when the target power consumption is smaller than or equal to the analog power consumption, two or more types of adjustable parameters are sent to an information prompt module to prompt, and after a user confirmation instruction is received, the adjustable parameters corresponding to the user confirmation instruction are adjusted to reduce the analog power consumption. The multi-dimensional energy-saving control scheme can be formulated for the user, the user can select the energy-saving control scheme according to actual conditions, the energy-saving effect is good, and the working performance of the multi-connected unit is improved.
Description
Technical Field
The application relates to the technical field of multi-connected units, in particular to a multi-connected unit control method and device and multi-connected unit equipment.
Background
The multi-connected unit refers to a unit formed by connecting two or more indoor units with one outdoor unit through a pipe, and the air conditioner multi-connected unit is one multi-connected unit. The outdoor side of the air conditioner multi-split air conditioner adopts an air cooling heat exchange mode, and the indoor side adopts a direct evaporation heat exchange mode to form a primary refrigerant air conditioning system. The multi-connected unit is widely applied to areas such as office buildings, apartments, machine rooms, schools, industrial parks and the like at present, and brings great convenience to work and life of people.
However, when the multi-connected unit is operated, the energy waste is very easy to cause due to complex use scene, large load change and strong operation randomness, so that the traditional multi-connected unit is not energy-saving enough and has poor working performance.
Disclosure of Invention
Aiming at the problems of insufficient energy conservation and poor working performance of the traditional multi-connected unit, the invention provides a multi-connected unit control method and device and multi-connected unit equipment.
A multi-unit control method comprises the following steps:
acquiring schedule reservation information and target energy consumption of target equipment in the multi-connected unit;
the target energy consumption is distributed to a time period corresponding to the schedule reservation information, and target power consumption is obtained;
Obtaining simulated power consumption in a time period corresponding to the schedule reservation information according to preset equipment parameters of the target equipment;
when the target power consumption is smaller than or equal to the simulated power consumption, sending more than two types of adjustable parameters to an information prompt module for prompting, and adjusting the adjustable parameters corresponding to the user confirmation instruction after receiving the user confirmation instruction so as to reduce the target power consumption.
A multiple unit control device comprising:
the schedule and target energy consumption acquisition module is used for acquiring schedule reservation information and target energy consumption of target equipment in the multi-connected unit;
the target power consumption acquisition module is used for distributing the target energy consumption to a time period corresponding to the schedule reservation information to obtain target power consumption;
the simulated power consumption acquisition module is used for acquiring the simulated power consumption in the time period corresponding to the schedule reservation information according to the preset equipment parameters of the target equipment;
and the first parameter adjusting module is used for sending more than two types of adjustable parameters to the information prompting module for prompting when the target power consumption is smaller than or equal to the simulated power consumption, and adjusting the adjustable parameters corresponding to the user confirmation instruction after receiving the user confirmation instruction so as to reduce the target power consumption.
The multi-unit device comprises a unit, a controller, an information forwarding device and the multi-unit control device, wherein the unit is connected with the controller, the controller is connected with the information forwarding device, and the information forwarding device is connected with the multi-unit control device.
According to the multi-connected unit control method, the multi-connected unit control device and the multi-connected unit device, schedule reservation information and target energy consumption of target devices in the multi-connected unit are firstly obtained, then the target energy consumption is distributed to a time period corresponding to the schedule reservation information to obtain target power consumption, then according to preset device parameters of the target devices, simulated power consumption in the time period corresponding to the schedule reservation information is obtained, when the target power consumption is smaller than or equal to the simulated power consumption, two or more types of adjustable parameters are sent to the information prompt module to prompt, and after a user confirmation instruction is received, the adjustable parameters corresponding to the user confirmation instruction are adjusted to reduce the simulated power consumption. According to the scheme, target power consumption is obtained according to schedule reservation and expected target energy consumption, then simulated power consumption associated with schedules is obtained by combining preset equipment parameters of target equipment, when the target power consumption is smaller than or equal to the simulated power consumption, two or more types of adjustable parameters are sent to an information prompt module for prompting, a multidimensional energy-saving control scheme is formulated for a user, the user can select the energy-saving control scheme according to actual conditions, after receiving a user confirmation instruction, the adjustable parameters corresponding to the user confirmation instruction are adjusted, so that the simulated power consumption is reduced, different energy-saving schemes can be provided for different target equipment on the premise that the user requirement is met, the energy-saving effect is good, and the working performance of a multi-connected unit is improved.
In one embodiment, after obtaining the simulated power consumption in the time period corresponding to the schedule reservation information according to the preset device parameter of the target device, the method further includes:
when the target power consumption is larger than the simulated power consumption, acquiring the actual power consumption of the target equipment;
when the actual power consumption is larger than the target power consumption, sending more than two types of adjustable parameters to an information prompt module for prompting, and adjusting the adjustable parameters corresponding to the user confirmation instruction after receiving the user confirmation instruction so as to reduce the actual power consumption.
In one embodiment, when the target power consumption is greater than the simulated power consumption, the method further includes, after obtaining the actual power consumption of the target device:
and sending the actual power consumption and the target power consumption to an information prompt module for prompt.
In one embodiment, after obtaining the simulated power consumption in the time period corresponding to the schedule reservation information according to the preset device parameter, the method further includes:
and sending the target power consumption and the simulated power consumption to an information prompt module for prompt.
In one embodiment, the time period corresponding to the schedule reservation information includes more than two sub-time periods, and the distributing the target energy consumption to the time period corresponding to the schedule reservation information to obtain the target power consumption includes:
distributing the target energy consumption to each sub-time period to obtain target power consumption in each sub-time period;
the obtaining the simulated power consumption in the time period corresponding to the schedule reservation information according to the preset equipment parameters of the target equipment comprises the following steps:
and obtaining the simulated power consumption in each sub-time period according to the preset equipment parameters of the target equipment.
In one embodiment, after obtaining the simulated power consumption in each sub-period according to the preset device parameters of the target device, the method further includes:
and when the target power consumption corresponding to the same sub-time period is smaller than the simulated power consumption, distributing the difference value between the simulated power consumption corresponding to the same sub-time period and the target power consumption to the target power consumption corresponding to other sub-time periods.
In one embodiment, after obtaining the simulated power consumption in each sub-period according to the preset device parameters of the target device, the method further includes:
When the corresponding target power consumption in the same sub-time period is smaller than the simulated power consumption, acquiring the actual power consumption of the target equipment in the same sub-time period;
and when the actual power consumption corresponding to the same sub-time period is smaller than the target power consumption, distributing the difference value between the target power consumption corresponding to the same sub-time period and the actual power consumption to the target power consumption corresponding to other sub-time periods.
In one embodiment, before the obtaining the schedule reservation information and the target energy consumption of the target device in the multi-link set, the method further includes:
in the multi-gang set, a target device that has established a connection is acquired.
In one embodiment, the adjustable parameter includes at least one of temperature, humidity, wind speed, and air outlet direction.
In one embodiment, the unit is an air conditioning unit.
Drawings
FIG. 1 is a schematic diagram of an application scenario of a multi-gang control method in one embodiment;
FIG. 2 is a flow chart of a multi-gang control method in one embodiment;
FIG. 3 is a flow chart of a method of multi-gang control in another embodiment;
FIG. 4 is a flow chart of a method of multi-gang control in yet another embodiment;
FIG. 5 is a flow chart of a method of multi-gang control in yet another embodiment;
fig. 6 is a block diagram of a multi-gang control apparatus in one embodiment.
Description of the embodiments
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.
In one embodiment, a multi-connected unit control method is provided, and the multi-connected unit control method can be applied to an application environment shown in fig. 1 and is realized based on a multi-connected unit group control system. The multi-connected group control system can be understood as a website deployed in a user computer, and the multi-connected group control method can be realized by installing the multi-connected group control system in the computer. It is understood that the multi-unit control method may be implemented by other intelligent devices, as long as those skilled in the art consider it to be implemented. The multi-connected unit control method can be used for controlling the multi-connected unit, and the multi-connected unit comprises, but is not limited to, an air conditioner multi-connected unit and the like. In general, the multi-connected unit includes a unit, a controller and an information forwarding device, where the information forwarding device includes a router or an exchange, and the unit includes more than two units, one controller is connected to one or more units, and the number of controllers is generally more than two, and each controller is used to obtain information of a connected device and send the information to the information forwarding device, and the information forwarding device can implement data transmission between the controller and a host computer, and connect multiple controllers to the same local area network, for example, can forward information from the controller to the host computer, and can also transmit an instruction sent by the host computer to the controller, so as to implement control of the unit. Referring to fig. 2, the multi-unit control method includes the following steps:
Step S200: and acquiring schedule reservation information and target energy consumption of target equipment in the multi-connected unit.
Specifically, the schedule reservation information includes time information, which may be time information, duration information, time period information, or the like. The schedule reservation information may further include target mode information, etc., which is an operation mode of a desired multi-gang set, such as cooling or refrigerating, and may further include a target temperature, etc. The target device in the multi-connected unit refers to a device needing to be controlled or monitored, generally, the multi-connected unit comprises a plurality of devices, and the target device can be part or all of the devices in the multi-connected unit and is determined according to the requirements of users. The target energy consumption refers to the desired energy consumption and may be a specific energy consumption value or range of energy consumption values.
The schedule reservation information, the target device and the target energy consumption can be set by a user, and the user can set the schedule reservation information, the target device and the target energy consumption which can meet the requirements for subsequent use. In this embodiment, the multi-connected unit control method is implemented based on the multi-connected unit group control system, and the multi-connected unit is an air conditioning unit as an example, and a user enters an intelligent reservation interface of the multi-connected unit group control system, sets a schedule in combination with actual conditions, and the multi-connected unit group control system obtains schedule reservation information. For example: when user 8: when the vehicle is on duty 30 and off duty 11:30, the air conditioner 8:20 can be set to be started, the mode is set to be refrigerating, the temperature is 27 ℃, and the air conditioner 11:20 can be set to be stopped. Then, the user can enter an energy-saving control function interface of the multi-online group control system, and target energy consumption of target equipment can be set. For example: the power consumption of the air conditioners in the rooms 101 to 110 is set to be 500 kw. Further, the user can set the target energy consumption of the designated equipment in the fixed period, and the multi-online group control system obtains the target energy consumption of the designated equipment in the fixed period, wherein the fixed period is not unique. For example, monday to friday, and the power consumption of the air conditioning apparatuses in the rooms 101 to 110 is controlled to be within 500 kw.
Step S400: and distributing the target energy consumption to a time period corresponding to the schedule reservation information to obtain the target power consumption.
The time period corresponding to the schedule reservation information may be an integral time period or may include two or more sub-time periods. When the period corresponding to the schedule reservation information is an overall period, the target power consumption is the target power consumption of the overall period. When the time period corresponding to the schedule reservation information comprises more than two sub-time periods, distributing target energy consumption into each sub-time period to obtain target power consumption in each sub-time period. The allocation mode is not unique, the target energy consumption can be evenly allocated to each sub-time period, different energy consumption can be allocated to each sub-time period according to the use condition, the requirement and the like, the target power consumption corresponding to each sub-time period can be the same, partially different and completely different, and the target power consumption can be specifically selected according to the actual condition, so long as the target power consumption can be realized by one skilled in the art.
Step S600: and obtaining the simulated power consumption in the time period corresponding to the schedule reservation information according to the preset equipment parameters of the target equipment.
The preset device parameters are parameters which are already configured or set in advance, and the preset device parameters are parameters affecting power consumption. In this embodiment, the preset device parameters may include capacities of indoor units and outdoor units of the multi-unit, for example, capacities of indoor and outdoor air conditioning devices, and may further include a duration, a mode, a temperature, and the like set in advance. Taking a multi-connected unit as an air conditioning unit for example, acquiring parameters such as the refrigerating capacity, the capacity of an outdoor unit, the power of a compressor, the set operation time, the operation mode, the set temperature and the like of the air conditioner, and then calculating by thermodynamic, refrigerating formulas and the like to obtain the simulated energy consumption. The simulated energy consumption may be used as simulated power consumption.
Further, the mode of obtaining the simulated power consumption is different according to the time period corresponding to the schedule reservation information. After the simulated energy consumption calculated according to the preset equipment parameters is obtained, the simulated energy consumption can be distributed to a time period corresponding to schedule reservation information, and the simulated power consumption is obtained. The time period corresponding to the schedule reservation information may be an integral time period or may include two or more sub-time periods. When the period corresponding to the schedule reservation information is an overall period, the simulated power consumption is the simulated power consumption of the overall period. When the time period corresponding to the schedule reservation information comprises more than two sub-time periods, the simulated energy consumption is distributed to each sub-time period, and the simulated power consumption in each sub-time period is obtained. The allocation mode is not unique, the simulated energy consumption can be evenly allocated to each sub-time period, different energy consumption can be allocated to each sub-time period according to the use condition, the requirement and the like, the simulated power consumption corresponding to each sub-time period can be the same, partially different and completely different, and the simulated power consumption can be specifically selected according to the actual condition, so long as the simulation power consumption can be realized by a person skilled in the art.
Step S800: when the target power consumption is smaller than or equal to the simulated power consumption, sending more than two types of adjustable parameters to the information prompt module for prompting, and adjusting the adjustable parameters corresponding to the user confirmation instruction after receiving the user confirmation instruction so as to reduce the simulated power consumption.
In this embodiment, the target power consumption and the analog power consumption may be power consumption corresponding to a time period corresponding to the schedule reservation information as a whole. When the target power consumption is smaller than or equal to the simulated power consumption, the energy consumption required by the user is considered to exceed the energy consumption generated by the multi-connected unit under the standard state, and at the moment, more than two types of adjustable parameters are sent to the information prompt module for prompting, so that various energy saving schemes are provided for the user for selection by the user. The type of the information prompt module is not unique, and the corresponding prompt modes are different. In this embodiment, taking the information prompt module as an example of a display interface, the energy-saving scheme including the adjustable parameters can be displayed in the form of a chart or characters, and the display content is accurate and visual. It will be appreciated that in other embodiments, the information prompt module may be of other types, such as a voice prompt module with convenient prompt, etc., and may be selected according to actual requirements.
After receiving the prompt information, the user selects an energy-saving scheme according to the self-demand and other factors and sends a confirmation instruction. After receiving the user confirmation instruction, the multi-connected group control system adjusts the adjustable parameters corresponding to the user confirmation instruction so as to reduce the simulated power consumption. In order to improve the energy-saving effect, the method can prompt for multiple times or for a long time, and can adjust the adjustable parameters for multiple times until the target power consumption after adjustment is smaller than or equal to the simulated power consumption, thereby reducing the energy consumption of the unit and reducing the energy consumption waste. The adjustable parameters are parameters which can influence the energy consumption of the multi-connected unit, the types of the adjustable parameters are more than two, at least two energy-saving schemes can be provided for users, and the energy-saving effect can be achieved by adjusting any one of the parameters.
In this embodiment, taking the example that the adjustable parameters include temperature, humidity, wind speed and air outlet direction, when the target power consumption is less than or equal to the simulated power consumption, the system will customize different energy-saving control schemes from multiple dimensions such as temperature, humidity, wind speed, air outlet direction, etc. For example, an air conditioner is used in a non-closed space, and under the condition that the difference between the set temperature and the outdoor temperature is large, the indoor environment temperature cannot reach the set temperature of the air conditioner, the lowest temperature which can be reached by the current environment can be found by the temperature, the humidity, the wind speed, the wind outlet direction and the like, and the set temperature is changed to reduce the running frequency of the compressor so as to achieve the effect of saving energy. The energy-saving scheme can meet the requirements of different users on use occasions, for example, the user needs to keep the temperature unchanged, the environment humidity can be accepted to be reduced, or the user needs to keep the environment humidity, the energy consumption can be reduced by adjusting the set temperature, the wind speed and the like, and the user can select the energy-saving scheme according to actual requirements. After the user selects the energy-saving scheme, the multi-online group control system receives a user confirmation instruction, and adjusts adjustable parameters in the energy-saving scheme according to the energy-saving scheme corresponding to the user confirmation instruction so as to reduce the simulated power consumption and achieve the purpose that the simulated power consumption meets the target power consumption.
In one embodiment, referring to fig. 3, after step S600, the multi-unit control method further includes step S710 and step S720.
Step S710: and when the target power consumption is smaller than or equal to the simulated power consumption, acquiring the actual power consumption of the target equipment.
When the target power consumption is smaller than or equal to the simulated power consumption, the energy consumption generated by the multi-connected unit under the standard state work is considered to meet the energy consumption required by the user, and the actual power consumption of the target equipment is acquired at the moment and monitored to achieve a better energy-saving effect. Specifically, the actual power consumption of the target device can be obtained by acquiring the working parameters of the target device, for example, the compressor running power, the running time, the running mode, the set temperature and the like, and then the actual power consumption of the target device can be obtained by calculation according to thermodynamic and refrigeration formulas and the like.
Step S720: when the actual power consumption is larger than the target power consumption, sending more than two types of adjustable parameters to the information prompt module for prompting, and adjusting the adjustable parameters corresponding to the user confirmation instruction after receiving the user confirmation instruction so as to reduce the actual power consumption.
When the actual power consumption is larger than the target power consumption, the current energy consumption of the target equipment is considered to be higher, and the work is not energy-saving. At this time, more than two types of adjustable parameters are sent to the information prompt module for prompt, and various energy-saving schemes are provided for users for selection. After receiving the prompt information, the user selects an energy-saving scheme according to the self-demand and other factors and sends a confirmation instruction. After receiving the user confirmation instruction, the multi-connected group control system adjusts the adjustable parameters corresponding to the user confirmation instruction so as to reduce the actual power consumption. In order to improve the energy-saving effect, the method can prompt for multiple times or for a long time, and can adjust the adjustable parameters for multiple times until the actual power consumption after adjustment is less than or equal to the target power consumption, thereby reducing the energy consumption of the unit and reducing the energy consumption waste. The adjustable parameters are parameters which can influence the energy consumption of the multi-connected unit, the types of the adjustable parameters are more than two, at least two energy-saving schemes can be provided for users, and the energy-saving effect can be achieved by adjusting any one of the parameters.
In one embodiment, referring to fig. 3, after step S710, the multi-unit control method further includes step S730.
Step S730: and sending the actual power consumption and the target power consumption to an information prompt module for prompt.
After the actual power consumption of the target equipment is obtained, the actual power consumption and the target power consumption are sent to the information prompt module for prompt, so that a user can know the actual power consumption and the target power consumption in time, and when the actual power consumption or the target power consumption needs to be regulated, the regulation can be performed in time, and the use is convenient. Further, when the actual power consumption is less than or equal to the target power consumption, the actual power consumption and the target power consumption may be sent to the information prompt module for prompt. When the actual power consumption is larger than the target power consumption, the actual power consumption is regulated, and the actual power consumption can be temporarily not or less prompted at the moment, so that the workload of the information prompt module is reduced, and the prompt content is simplified.
The type of the information prompt module is not unique, and the corresponding prompt modes are different. In this embodiment, taking the information prompt module as an example of a display interface, the energy-saving scheme including the adjustable parameters can be displayed in the form of a chart or characters, and the display content is accurate and visual. And the multi-online group control system can also generate an energy consumption distribution diagram according to the actual power consumption, the target power consumption and schedule reservation information, can intuitively provide the actual power consumption situation to a user through the energy consumption distribution diagram, is used for analyzing reasonable situations of schedule reservation and energy-saving control, and can change related parameters according to the reasonable situations, so that parameter setting is more reasonable. It will be appreciated that in other embodiments, the information prompt module may be of other types, such as a voice prompt module, and may be selected according to actual requirements.
In one embodiment, referring to fig. 3, after step S600, the multi-gang control method further includes step S810.
Step S810: and sending the target power consumption and the simulated power consumption to an information prompt module for prompt.
After the simulated power consumption and the target power consumption are obtained, the target power consumption and the simulated power consumption are sent to the information prompt module for prompt, so that a user can know the target power consumption and the simulated power consumption in time, and when the target power consumption needs to be regulated, the target power consumption can be regulated in time, and the use is convenient. Further, when the target power consumption is less than or equal to the simulated power consumption, the target power consumption and the simulated power consumption may be sent to the information prompt module for prompt. When the target power consumption is larger than the simulated power consumption, the target power consumption is regulated, and the target power consumption can be temporarily not or less prompted at the moment, so that the workload of the information prompting module is reduced, and the prompting content is simplified.
The type of the information prompt module is not unique, and the corresponding prompt modes are different. In this embodiment, taking the information prompt module as an example of a display interface, the energy-saving scheme including the adjustable parameters can be displayed in the form of a chart or characters, and the display content is accurate and visual. And the multi-connected group control system can also generate an energy consumption distribution diagram according to the target power consumption, the simulated power consumption and schedule reservation information, intuitively provide the electricity quantity required by the reservation scheme and the electricity quantity required by the standard working of the unit for a user, analyze the reasonable conditions of schedule reservation and energy-saving control, and change relevant parameters by the user according to the reasonable conditions, so that parameter setting is more reasonable. It will be appreciated that in other embodiments, the information prompt module may be of other types, such as a voice prompt module, and may be selected according to actual requirements.
In one embodiment, the time period corresponding to the schedule reservation information includes more than two sub-time periods, referring to fig. 4, step S400 includes step S410, and step S600 includes step S610.
Step S410: and distributing the target energy consumption to each sub-time period to obtain the target power consumption in each sub-time period.
When the time period corresponding to the schedule reservation information comprises more than two sub-time periods, distributing target energy consumption to each sub-time period to obtain target power consumption in each sub-time period. The allocation mode is not unique, the target energy consumption can be evenly allocated to each sub-time period, different energy consumption can be allocated to each sub-time period according to the use condition, the requirement and the like, the target power consumption corresponding to each sub-time period can be the same, partially different and completely different, and the target power consumption can be specifically selected according to the actual condition, so long as the target power consumption can be realized by one skilled in the art.
Step S610: and obtaining the simulated power consumption in each sub-time period according to the preset equipment parameters of the target equipment.
Specifically, after the simulated energy consumption calculated according to the preset equipment parameters is obtained, the simulated energy consumption is distributed to a time period corresponding to schedule reservation information, and the simulated power consumption is obtained. When the time period corresponding to the schedule reservation information comprises more than two sub-time periods, the simulated energy consumption is distributed to each sub-time period, and the simulated power consumption in each sub-time period is obtained. The allocation mode is not unique, the simulated energy consumption can be evenly allocated to each sub-time period, different energy consumption can be allocated to each sub-time period according to the use condition, the requirement and the like, the simulated power consumption corresponding to each sub-time period can be the same, partially different and completely different, and the simulated power consumption can be specifically selected according to the actual condition, so long as the simulation power consumption can be realized by a person skilled in the art.
In one embodiment, referring to fig. 4, after step S610, the multi-unit control method further includes step S620.
Step S620: and when the corresponding target power consumption in the same sub-time period is larger than the simulated power consumption, distributing the difference value between the simulated power consumption and the target power consumption in the same sub-time period to the corresponding target power consumption in other sub-time periods.
Specifically, when the corresponding target power consumption in the same sub-period is greater than the analog power consumption, it is considered that the power consumption allocated in the current sub-period is already a comparatively energy-saving scheme. At this time, the difference value between the simulated power consumption and the target power consumption corresponding to the sub-time period is distributed to the power consumption corresponding to other sub-time periods, so that the multi-connected unit in other sub-time periods is guaranteed to have sufficient target power consumption, and the working performance of the multi-connected unit is improved. The difference value can be a difference value or a difference value minus an allowable floating value, and the like, so that a certain margin is reserved for the target power consumption, and the working effect of the multi-connected unit is ensured. Further, there are various ways of assigning the difference value to the target power consumption corresponding to the other sub-period. For example, the difference value may be equally distributed to the corresponding target power consumption in other sub-time periods, or different power consumption may be added to other sub-time periods according to the use condition, the requirement, etc., and the target power consumption added in each sub-time period may be the same, partially different, or completely different, and may be specifically selected according to the actual situation, so long as those skilled in the art consider that the implementation is possible.
In one embodiment, referring to fig. 4, after step S610, the multi-gang control method further includes step S630 and step S640.
Step S630: and when the corresponding target power consumption in the same sub-time period is larger than the simulated power consumption, acquiring the actual power consumption of the target equipment in the same sub-time period.
When the corresponding target power consumption in the same sub-time period is larger than the simulated power consumption, the energy consumption generated by the multi-connected unit under the standard state working in the current sub-time period is considered to meet the energy consumption required by a user, and the actual power consumption of the target equipment in the same sub-time period is acquired at the moment to monitor the actual power consumption of the equipment so as to achieve a better energy-saving effect. Specifically, the actual power consumption of the target device can be obtained by acquiring the working parameters of the target device, for example, the compressor running power, the running time, the running mode, the set temperature and the like, and then the actual power consumption of the target device can be obtained by calculation according to thermodynamic and refrigeration formulas and the like.
Step S640: and when the actual power consumption corresponding to the same sub-time period is smaller than the target power consumption, distributing the difference value between the target power consumption corresponding to the same sub-time period and the actual power consumption to the target power consumption corresponding to other sub-time periods.
Specifically, when the corresponding actual power consumption in the same sub-period is smaller than the target power consumption, it is considered that the power consumption actually consumed in the current sub-period is already a comparatively energy-saving scheme. At this time, the difference value between the target power consumption corresponding to the sub-time period and the actual power consumption is distributed to the target power consumption corresponding to other sub-time periods, so that the multi-connected unit in other sub-time periods is guaranteed to have sufficient target power consumption, and the working performance of the multi-connected unit is improved. The difference value can be a difference value, or can be a difference value minus an allowable floating value, so that a certain margin is reserved for the actual power consumption, the condition of working fluctuation of the multi-connected unit can be better considered, and the working effect of the multi-connected unit is ensured. Further, there are various ways of assigning the difference value to the target power consumption corresponding to the other sub-period. For example, the difference value may be equally distributed to the corresponding target power consumption in other sub-time periods, or different target power consumption may be added to other sub-time periods according to the use condition, the requirement, etc., and the target power consumption added in each sub-time period may be the same, partially different, or completely different, and may be specifically selected according to the actual situation, so long as those skilled in the art consider that the implementation is possible.
In one embodiment, referring to fig. 4, before step S200, the multi-unit control method further includes step S100.
Step S100: in the multi-gang set, a target device that has established a connection is acquired.
Specifically, after the user installs the multi-online group control system software, the multi-online group control system software is connected with an intelligent controller in the multi-online group, the target equipment which is already connected is obtained in the multi-online group, the multi-online equipment is searched on a software interface, and at the moment, the user can monitor the equipment state, so that the follow-up operation is facilitated.
In one embodiment, the adjustable parameter includes at least one of temperature, humidity, wind speed, and air outlet direction.
Specifically, the adjustable parameters may include one, two, three or all of temperature, humidity, wind speed and air outlet direction, and may also include other types of parameters, which may be set according to actual requirements. In this embodiment, taking the example that the adjustable parameters include temperature, humidity, wind speed and air outlet direction, when the target power consumption is less than or equal to the simulated power consumption, the system will customize different energy-saving control schemes from multiple dimensions such as temperature, humidity, wind speed, air outlet direction, etc. For example, when an air conditioner is used in a non-closed space and the difference between the set temperature and the outdoor temperature is large, and the indoor environment temperature cannot reach the set temperature of the air conditioner, the lowest temperature which can be reached in the current environment can be found from the temperature, the humidity, the wind speed, the wind outlet direction and the like, and the running frequency of the compressor is reduced by changing the set temperature so as to achieve the effect of saving energy.
For a better understanding of the above embodiments, a detailed explanation is provided below in connection with a specific embodiment. In one embodiment, the multi-connected unit control method is implemented based on a multi-connected unit group control system, and the multi-connected unit is an air conditioning unit, for example, please refer to fig. 5, and the multi-connected unit control method includes the following steps:
the first step: after the user installs the multi-online group control system software, the intelligent controller in the multi-online group is connected, the multi-online equipment is searched on a software interface, and at the moment, the user can monitor the equipment state. The multi-online group control system can be understood as a website deployed in a user computer, and the user is required to install the multi-online group control system in the computer for use. The multi-connected group control system is displayed by a user interface, and can be connected with a plurality of controllers through routers to realize the monitoring of the state of the unit.
And a second step of: the user enters an intelligent reservation interface, and schedule reservation is set according to actual conditions. ( For example: 8:30 shifts, 11:30 shifts, 8:20 air conditioners can be set to be started, and refrigeration is set in a mode, wherein the temperature is 27 ℃; an air conditioner shutdown of 11:20 can be set. )
And a third step of: the user enters the energy-saving control function interface, and can set the target energy consumption of the designated equipment in a fixed period. ( For example: on monday to friday, the power consumption of the air conditioning equipment of the rooms 101 to 110 is controlled within 500kw by h )
Fourth step: the energy-saving control function distributes energy consumption to each schedule reservation period according to schedule reservation setting parameters of a user, and particularly can distribute electric quantity evenly according to target energy consumption and set air conditioning equipment. And acquiring the electricity consumption condition of the equipment per hour, if the electricity consumption condition is remained, equally dividing the remained electricity into other time periods, and if the electricity consumption condition is excessive, subtracting the excessive part from the total energy consumption target to equally divide the electricity again.
Fifth step: the system simulates the power consumption of each reservation according to the parameters of the air conditioning equipment (such as the capacity of the indoor and outdoor air conditioning equipment but not limited to the capacity), the reserved set duration, mode, temperature and the like. Specifically, the refrigerating capacity, the capacity of an outdoor unit, the power of a compressor, the set operation duration, the operation mode and the set temperature of the air conditioner are obtained, and the power consumption is calculated through thermodynamics, a refrigerating formula and the like.
Sixth step: the power consumption allocated to each reservation according to the target power consumption (referred to as allocation power consumption for short, corresponding to the target power consumption in the foregoing) and the power consumption simulated according to the actual parameter (referred to as simulated power consumption for short) are compared.
Seventh step: if the power consumption is distributed, the simulated power consumption can not be met, and the system can customize different energy-saving control schemes from multiple dimensions such as temperature, humidity, wind speed, air outlet direction and the like. For example, an air conditioner is used in the non-closed space, and under the condition that the difference between the set temperature and the outdoor temperature is large, the indoor environment temperature cannot reach the set temperature of the air conditioner, the lowest temperature which can be reached by the current environment can be found by the temperature, the humidity, the wind speed, the wind outlet direction and the like, and the set temperature is changed to reduce the running frequency of the compressor so as to achieve the effect of saving energy.
Eighth step: the energy-saving schemes can meet different user use scenes (for example, the user needs to keep the temperature unchanged, can accept to reduce the environmental humidity, or the user needs to keep the environmental humidity, can reduce the energy consumption by adjusting the set temperature, the wind speed and the like), and the user can select the energy-saving scheme according to the actual requirements.
Ninth step: the system adjusts the reservation setting parameters according to the energy-saving scheme so as to achieve the aim of meeting the distribution of power consumption.
Tenth step: if the distributed power consumption can meet the requirement of the simulated power consumption, the system generates an energy consumption distribution diagram and monitors the power consumption condition of the equipment in real time (the actual energy consumption is compared with the distributed energy consumption). The energy consumption distribution diagram can intuitively provide the actual power consumption situation for users, is used for analyzing reasonable situations of schedule reservation and energy-saving control, and can change related parameters accordingly, so that parameter setting is more reasonable.
Eleventh step: if the actual power consumption exceeds the distributed power consumption in the actual use process, the seventh step is performed.
The application provides a multi-dimensional energy-saving control scheme for a user from temperature, humidity, wind speed and the like by combining user schedule setting and energy-saving targets in a fixed period, the user can select the energy-saving control scheme according to actual conditions, and combines the parameters of the indoor unit and the outdoor unit and the operation time length and the operation parameters of the schedule set unit to generate an energy consumption distribution map, so that the energy consumption of the unit can be accurately controlled in real time. The temperature, humidity, wind speed, wind outlet direction and other set states of the air conditioning equipment are actively and regularly regulated, so that the energy-saving aim of the air conditioner is achieved. The display interface of the multi-online group control system can see the expected power consumption of each section of schedule and the energy consumption distribution situation of the unit, and the target power consumption in a fixed period can be set in the energy-saving control function. By observing the power consumption condition and the running state of the air conditioner, the unit power consumption is found to be controlled within the target energy consumption. The system is used for controlling the energy consumption after a period of operation, and automatically adjusting the operation parameters of the air conditioner (for example, the original air conditioner 1 is reserved and set to be started from 9 to 11 am, refrigerating, the temperature is 27 ℃ and the wind speed is automatic, and when the temperature is adjusted to 16 ℃ manually when the temperature is 09:10, the wind speed is strong wind, and the system is used for controlling the energy consumption of the air conditioner not to exceed the target energy consumption after the room where the air conditioner is located and the door and window are opened are operated for a period of time after the air conditioner is operated).
According to the multi-connected unit control method, schedule reservation information and target energy consumption of target equipment in the multi-connected unit are firstly obtained, then the target energy consumption is distributed to a time period corresponding to the schedule reservation information to obtain target power consumption, then simulation power consumption in the time period corresponding to the schedule reservation information is obtained according to preset equipment parameters of the target equipment, when the target power consumption is smaller than or equal to the simulation power consumption, two or more types of adjustable parameters are sent to an information prompt module to prompt, and after a user confirmation instruction is received, the adjustable parameters corresponding to the user confirmation instruction are adjusted to reduce the simulation power consumption. According to the scheme, target power consumption is obtained according to schedule reservation and expected target energy consumption, then simulated power consumption associated with schedules is obtained by combining preset equipment parameters of target equipment, when the target power consumption is smaller than or equal to the simulated power consumption, two or more types of adjustable parameters are sent to an information prompt module for prompting, a multidimensional energy-saving control scheme is formulated for a user, the user can select the energy-saving control scheme according to actual conditions, after receiving a user confirmation instruction, the adjustable parameters corresponding to the user confirmation instruction are adjusted, so that the simulated power consumption is reduced, different energy-saving schemes can be provided for different target equipment on the premise that the user requirement is met, the energy-saving effect is good, and the working performance of a multi-connected unit is improved.
Based on the same inventive concept, the embodiment of the application also provides a multi-unit control device for realizing the multi-unit control method. The implementation of the solution provided by the device is similar to the implementation described in the above method, so the specific limitation in the embodiments of the multiple unit control device provided below may be referred to the limitation of the multiple unit control method hereinabove, and will not be repeated herein.
In one embodiment, please refer to fig. 6, a multi-link unit control device is provided, which includes a schedule and target energy consumption acquisition module, a target power consumption acquisition module, a simulated power consumption acquisition module and a first parameter adjustment module, wherein the schedule and target energy consumption acquisition module is used for acquiring schedule reservation information and target energy consumption of target devices in the multi-link unit, the target power consumption acquisition module is used for distributing the target energy consumption to a time period corresponding to the schedule reservation information to obtain target power consumption, the simulated power consumption acquisition module is used for obtaining simulated power consumption in the time period corresponding to the schedule reservation information according to preset device parameters of the target devices, the first parameter adjustment module is used for sending two or more types of adjustable parameters to the information prompt module for prompting when the target power consumption is less than or equal to the simulated power consumption, and adjusting the adjustable parameters corresponding to the user confirmation instruction after receiving the user confirmation instruction so as to reduce the simulated power consumption.
In one embodiment, the multi-connected unit control device further includes a second parameter adjustment module, where the second parameter adjustment module is configured to obtain, after the simulated power consumption obtaining module obtains the simulated power consumption in the time period corresponding to the schedule reservation information according to the preset device parameter of the target device, when the target power consumption is less than or equal to the simulated power consumption, obtain an actual power consumption of the target device; when the actual power consumption is larger than the target power consumption, sending more than two types of adjustable parameters to the information prompt module for prompting, and adjusting the adjustable parameters corresponding to the user confirmation instruction after receiving the user confirmation instruction so as to reduce the actual power consumption.
In one embodiment, the second parameter adjusting module is further configured to send the actual power consumption and the target power consumption to the information prompting module for prompting after obtaining the actual power consumption of the target device.
In one embodiment, the multi-connected unit control device further includes a prompting module, where the prompting module is configured to send the target power consumption and the simulated power consumption to the information prompting module for prompting after the simulated power consumption obtaining module obtains the simulated power consumption in the time period corresponding to the schedule reservation information according to the preset device parameter of the target device.
In one embodiment, the multi-link set control device further comprises a search module for acquiring the target device for which connection has been established in the multi-link set before the schedule and target energy consumption acquisition module acquires the schedule reservation information and the target energy consumption of the target device in the multi-link set.
The respective modules in the multi-gang control apparatus may be implemented in whole or in part by software, hardware, and a combination thereof. The above modules may be embedded in hardware or may be independent of a processor in the computer device, or may be stored in software in a memory in the computer device, so that the processor may call and execute operations corresponding to the above modules.
According to the multi-connected unit control device, schedule reservation information and target energy consumption of target equipment in the multi-connected unit are firstly obtained, then the target energy consumption is distributed to a time period corresponding to the schedule reservation information to obtain target power consumption, then simulation power consumption in the time period corresponding to the schedule reservation information is obtained according to preset equipment parameters of the target equipment, when the target power consumption is smaller than or equal to the simulation power consumption, two or more types of adjustable parameters are sent to an information prompt module to prompt, and after a user confirmation instruction is received, the adjustable parameters corresponding to the user confirmation instruction are adjusted to reduce the simulation power consumption. According to the scheme, target power consumption is obtained according to schedule reservation and expected target energy consumption, then simulated power consumption associated with schedules is obtained by combining preset equipment parameters of target equipment, when the target power consumption is smaller than or equal to the simulated power consumption, two or more types of adjustable parameters are sent to an information prompt module for prompting, a multidimensional energy-saving control scheme is formulated for a user, the user can select the energy-saving control scheme according to actual conditions, after receiving a user confirmation instruction, the adjustable parameters corresponding to the user confirmation instruction are adjusted, so that the simulated power consumption is reduced, different energy-saving schemes can be provided for different target equipment on the premise that the user requirement is met, the energy-saving effect is good, and the working performance of a multi-connected unit is improved.
In one embodiment, a multi-unit device is provided, which comprises a unit, a controller, an information forwarding device and a multi-unit control device as described above, wherein the unit is connected with the controller, the controller is connected with the information forwarding device, and the information forwarding device is connected with the multi-unit control device. Generally, the information forwarding device includes a router or a switch, and the unit includes more than two unit devices, one controller is connected to one or more unit devices, the number of the controllers is generally more than two, each controller is used for acquiring information of the connected devices and sending the information to the information forwarding device, the information forwarding device can realize data transmission between the controller and the multi-online group control system, and the plurality of controllers are connected to the same local area network, for example, the information from the controller can be forwarded to the multi-online group control system, and an instruction sent by the multi-online group control system can also be transmitted to the controller, so as to realize control of the unit devices. Wherein, in one embodiment, the unit is an air conditioning unit.
According to the multi-connected unit equipment, firstly, the schedule reservation information and the target energy consumption of the target equipment in the multi-connected unit are acquired, then the target energy consumption is distributed to a time period corresponding to the schedule reservation information to obtain the target power consumption, then the simulated power consumption in the time period corresponding to the schedule reservation information is obtained according to the preset equipment parameters of the target equipment, when the target power consumption is smaller than or equal to the simulated power consumption, the two or more types of adjustable parameters are sent to the information prompt module to prompt, and after a user confirmation instruction is received, the adjustable parameters corresponding to the user confirmation instruction are adjusted to reduce the simulated power consumption. According to the scheme, target power consumption is obtained according to schedule reservation and expected target energy consumption, then simulated power consumption associated with schedules is obtained by combining preset equipment parameters of target equipment, when the target power consumption is smaller than or equal to the simulated power consumption, two or more types of adjustable parameters are sent to an information prompt module for prompting, a multidimensional energy-saving control scheme is formulated for a user, the user can select the energy-saving control scheme according to actual conditions, after receiving a user confirmation instruction, the adjustable parameters corresponding to the user confirmation instruction are adjusted, so that the simulated power consumption is reduced, different energy-saving schemes can be provided for different target equipment on the premise that the user requirement is met, the energy-saving effect is good, and the working performance of a multi-connected unit is improved.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (12)
1. The multi-unit control method is characterized by comprising the following steps of:
acquiring schedule reservation information and target energy consumption of target equipment in the multi-connected unit;
the target energy consumption is distributed to a time period corresponding to the schedule reservation information, and target power consumption is obtained;
obtaining simulated power consumption in a time period corresponding to the schedule reservation information according to preset equipment parameters of the target equipment, wherein the preset equipment parameters comprise capacities of indoor and outdoor units of the multi-connected unit and the schedule reservation information;
When the target power consumption is smaller than or equal to the simulated power consumption, different energy-saving control schemes are formulated from multiple dimensions, the energy-saving control schemes are sent to an information prompt module for prompt, after a user confirmation instruction is received, adjustable parameters in the energy-saving control schemes are adjusted according to the energy-saving control schemes corresponding to the confirmation instruction so as to reduce the simulated power consumption, the multiple dimensions comprise corresponding dimensions of temperature, humidity, wind speed and air outlet directions, and the adjustable parameters contained in the energy-saving control schemes correspond to the dimensions for formulating the energy-saving control schemes.
2. The multi-unit control method according to claim 1, wherein after obtaining the simulated power consumption in the time period corresponding to the schedule reservation information according to the preset device parameters of the target device, the method further comprises:
when the target power consumption is larger than the simulated power consumption, acquiring the actual power consumption of the target equipment;
when the actual power consumption is larger than the target power consumption, sending more than two types of adjustable parameters to an information prompt module for prompting, and adjusting the adjustable parameters corresponding to the user confirmation instruction after receiving the user confirmation instruction so as to reduce the actual power consumption.
3. The multi-gang control method of claim 2, wherein when the target power consumption is greater than the simulated power consumption, after obtaining the actual power consumption of the target device, further comprising:
and sending the actual power consumption and the target power consumption to an information prompt module for prompt.
4. The multi-unit control method according to claim 1, wherein after obtaining the simulated power consumption in the time period corresponding to the schedule reservation information according to the preset device parameter, further comprises:
and sending the target power consumption and the simulated power consumption to an information prompt module for prompt.
5. The multi-unit control method according to claim 1, wherein the time period corresponding to the schedule reservation information includes two or more sub-time periods, the distributing the target energy consumption to the time period corresponding to the schedule reservation information to obtain the target power consumption includes:
distributing the target energy consumption to each sub-time period to obtain target power consumption in each sub-time period;
the obtaining the simulated power consumption in the time period corresponding to the schedule reservation information according to the preset equipment parameters of the target equipment comprises the following steps:
And obtaining the simulated power consumption in each sub-time period according to the preset equipment parameters of the target equipment.
6. The multi-gang control method of claim 5, further comprising, after obtaining the simulated power consumption in each of the sub-periods according to preset device parameters of the target device:
and when the target power consumption corresponding to the same sub-time period is smaller than the simulated power consumption, distributing the difference value between the simulated power consumption corresponding to the same sub-time period and the target power consumption to the target power consumption corresponding to other sub-time periods.
7. The multi-gang control method of claim 5, further comprising, after obtaining the simulated power consumption in each of the sub-periods according to preset device parameters of the target device:
when the corresponding target power consumption in the same sub-time period is smaller than the simulated power consumption, acquiring the actual power consumption of the target equipment in the same sub-time period;
and when the actual power consumption corresponding to the same sub-time period is smaller than the target power consumption, distributing the difference value between the target power consumption corresponding to the same sub-time period and the actual power consumption to the target power consumption corresponding to other sub-time periods.
8. The multi-gang set control method of claim 1, further comprising, before the obtaining schedule reservation information and target energy consumption of target devices in the multi-gang set:
in the multi-gang set, a target device that has established a connection is acquired.
9. The multiple unit control method of any one of claims 1-8, wherein the adjustable parameters include at least one of temperature, humidity, wind speed, and air outlet direction.
10. A multiple unit control device, comprising:
the schedule and target energy consumption acquisition module is used for acquiring schedule reservation information and target energy consumption of target equipment in the multi-connected unit;
the target power consumption acquisition module is used for distributing the target energy consumption to a time period corresponding to the schedule reservation information to obtain target power consumption;
the simulated power consumption acquisition module is used for acquiring simulated power consumption in a time period corresponding to the schedule reservation information according to preset equipment parameters of the target equipment, wherein the preset equipment parameters comprise the capacity of indoor and outdoor units of the multi-unit and the schedule reservation information;
and the first parameter adjusting module is used for making different energy-saving control schemes from multiple dimensions when the target power consumption is smaller than or equal to the simulated power consumption, sending the energy-saving control schemes to the information prompting module for prompting, and adjusting adjustable parameters in the energy-saving control schemes according to the energy-saving control schemes corresponding to the confirmation instructions after receiving the confirmation instructions of the user so as to reduce the simulated power consumption, wherein the multiple dimensions comprise corresponding dimensions of temperature, humidity, wind speed and air outlet direction, and the adjustable parameters contained in the energy-saving control schemes correspond to the dimensions for making the energy-saving control schemes.
11. A multi-unit device, comprising a unit, a controller, an information forwarding device and the multi-unit control device according to claim 10, wherein the unit is connected with the controller, the controller is connected with the information forwarding device, and the information forwarding device is connected with the multi-unit control device.
12. The multiple unit apparatus of claim 11, wherein the unit is an air conditioning unit.
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