JP5281684B2 - Electricity rate calculation apparatus and method - Google Patents

Description

  The present invention relates to an electricity bill calculation apparatus and method for calculating the total amount of electricity used at a plurality of locations and the electricity bill.

  In general, a power consumer receives power through a contract with a power supplier, and when the contract capacity is exceeded, the switch operates to cut off the power supply. Therefore, it is desirable for consumers to use electric power so as not to exceed the contracted capacity. On the other hand, there is a demand from electric power suppliers that consumers should use on average so that electric power demand does not concentrate at one time. Therefore, discount rates that discount electricity charges are used during periods of low power demand.

  FIG. 8 is an explanatory diagram showing an example in which different unit prices for electric charges are set depending on the time zone in association with the daily demand power P. Generally, power demand is low at midnight and increases from morning to daytime. Then, the peak of power demand is reached in the daytime and gradually decreases from daytime to nighttime. For this reason, discounted charges are used as the unit price of electricity during times when power demand is low, premiums are charged during peak hours of power demand, and normal charges are used during other times.

  For example, the discounted unit price C1 is set in the time zone from 23:00 to 5 o'clock, and the normal rate unit price C2 is set in the time zone from 5 o'clock to 11 o'clock and from 15 o'clock to 23 o'clock, from 11 o'clock to 15 o'clock. In the time zone up to, the premium charge unit price C3. As a result, the power supplier indirectly requests consumers to save power so that the power demand is not concentrated at one time.

  On the other hand, there is a consumer equipped with a power receiving facility having a dedicated unit that receives power supplied from a power supplier for each user and a shared unit that is shared by a plurality of users. For example, in a housing complex or a tenant building facility, power is collectively received from a power supplier and distributed to a dedicated part and a shared part to supply power to a plurality of users. In addition, a public power supply system has been developed in which an outlet for supplying power from a distribution line is installed in a predetermined public place in advance, and user information is authenticated so that a plurality of users can use the outlet. . This public power supply system corresponds to a shared part.

  Normally, the amount of electricity and electricity used by the user in the common area are tabulated separately from the amount of electricity and electricity used in the exclusive area, but each user used it in the common area for their own sake. It is desirable to be able to check the amount of electricity and electricity charges for each individual user. Therefore, there is one in which an electric charge is charged for each user regarding a common area used by a plurality of users (see, for example, Patent Document 1).

  In addition, there is one that monitors the user's power consumption, performs various processes such as totaling, etc., and provides the processing results to the user so that the power consumption can be saved (for example, patents) Reference 2).

JP 2009-252111 A JP 2009-180741 A

  However, in Patent Document 1, although electricity charges can be charged for each user for the power used in the shared section, the total power consumption used in both the dedicated section and the shared section is not tabulated, It cannot contribute to the reduction of power consumption by users at peak demand.

  Moreover, in the thing of patent document 2, since the user's power consumption and electricity bill in an exclusive part can be provided to a user, a user can be made possible to save power consumption, etc. Since the total power consumption used in both the dedicated part and the shared part including use is not counted, it cannot contribute to the suppression of the power used by the user at the peak of the power demand.

  Furthermore, in the unit price of electricity shown in FIG. 8, the unit price of electricity varies depending on the time of day, so that the electricity charges of electric devices (for example, refrigerators) used throughout the day are used on average. , Could be expensive. In addition, since it is an extra charge unit price C3 in the daytime, it tends to refrain from using the power itself, and although it actually requires the use of power, it may not use the power, and it is never comfortable for the user. .

  An object of the present invention is to provide an electricity bill calculation apparatus and method that can contribute to the suppression of power consumption by a user at the peak of power demand and can further contribute to the reduction of the electricity bill of the user.

The electricity bill calculation device according to the invention of claim 1 provides time information to the amount of power used by a user in a dedicated unit that receives power supplied from the power supplier for each individual user, and for each time period. A dedicated unit power meter that measures the amount of power used by a dedicated unit and a shared unit that is shared by multiple users to receive power and adds user information and time information to the amount of power used by the user for each time period Based on the common part power meter that measures the common part power consumption, and the dedicated part power consumption measured by the special part power meter and the common part power consumption measured by the common part power meter. A calculation unit that aggregates the total amount of power used by the user in the dedicated unit and the shared unit for each time zone, and a user of the electrical device when a plug is inserted in the dedicated unit and the shared unit And supply the power by identifying the type A power outlet, and when the total power consumption aggregated for each user's time zone exceeds the upper limit set value, the calculation unit limits the power consumption for limiting the power consumption of each user. The command is output to the smart outlet of the dedicated unit and the shared unit, and when there is a power usage restriction command, the smart outlet to which the electrical device with low priority of use is connected is turned off, and the smart outlet is When the plug of the electric device is connected, the user and the type of the electric device are identified. When there is no power usage restriction command, the total power consumption of the user in the time zone and the smart outlet Calculate the total energy with the rated power consumption of the electrical equipment connected to the, and if the total energy does not exceed the upper limit setting, The pitch turned on, characterized in that to enable the supply of power.

An electricity bill calculation method according to a second aspect of the invention includes a server including a storage unit and a calculation unit, and a dedicated unit that receives power supplied from a power supplier for each individual user, and a plurality of dedicated units. A common outlet that is shared by the users of the power supply is installed with a smart outlet that identifies the user and type of the electrical device and supplies power when the plug is inserted. and a switch, a dedicated unit power measuring step the user in the dedicated unit measures the dedicated unit power usage of each time period by applying the time information to the amount of power used by the dedicated unit power meter, the A shared unit power measurement step of adding user information and time information to the amount of power used by the user in the shared unit and measuring the shared unit power consumption for each time zone with the shared unit power meter, and the dedicated unit power In the measurement step The total use amount of power each user has used in the dedicated portion and the common portion based on the measured, dedicated unit amount of electric power used and shared unit electric power consumption measured by the common unit power measuring step for each time zone The total power consumption totaling step totaled by the calculation unit of the server, and the total power consumption of each user totaled for each time zone in the total power consumption totaling step by the calculation unit of the server is the upper limit set value When the total power consumption of individual users exceeds the upper limit setting value, a dedicated power usage command for limiting the power usage of each user is used. Power consumption command output step to output to the smart outlet of the unit, and when there is a power usage limit command to the smart outlet, the smart outlet calculation processing means A power supply stop step of turning off the power supply by turning off the switch of the smart outlet to which the low-priority electric device is connected, and when the plug is connected to the smart outlet, the user and the type of the electric device Are identified by the processing means of the smart outlet, and if the user and type of the electrical device are identified by the identification step, is the usage power limitation command output by the usage power limitation command output step? Whether or not there is a limit command presence / absence determination step that is determined by the smart outlet calculation processing means and the limit command presence / absence determination step determines that there is no power usage limit command, by the smart outlet calculation processing means. Use permission step to enable power supply from smart outlet
It is characterized in that a-up.

According to the first and second aspects of the present invention, the total power consumption of the power consumption used by the user in the dedicated section and the power consumption used in the shared section is tabulated for each time zone. It is possible to provide the total power consumption for each user's time zone. Therefore, it is possible to contribute to the suppression of power consumption by the user at the peak time of power demand. In addition, when the total power consumption of a user exceeds the upper limit setting value, the smart outlet connected to the user's dedicated power meter or the smart outlet connected to the dedicated power meter A smart power outlet that outputs a power usage restriction command to limit the power usage of the user and is connected to a low-priority electrical device is turned off so that the total power consumption does not exceed the upper limit setting value. Electric equipment can be used. In addition, when a plug of an electrical device is connected, the smart outlet identifies the user and type of the electrical device and enables power supply when there is no power usage restriction command. Electric power can be used so as not to exceed the upper limit set value.

The lineblock diagram of the electricity bill calculation device concerning a 1st embodiment of the present invention. The graph which shows an example of the total electric power consumption for every time slot | zone of a certain user who is totaled by the electricity bill calculation apparatus which concerns on 1st Embodiment of this invention. Explanatory drawing of an example of the content of the electricity bill unit price table memorize | stored in the memory | storage part of the electricity bill calculation apparatus of this invention. Explanatory drawing of the other example of the content of the electricity bill unit price table memorize | stored in the memory | storage part of the electricity bill calculation apparatus of this invention. The block diagram of the electricity bill calculation apparatus which concerns on 2nd Embodiment of this invention. Explanatory drawing of an example of the electric equipment information for every user in 2nd Embodiment of this invention. The graph which shows an example of the used electric energy when the total used electric energy is suppressed by the upper limit set value in 2nd Embodiment of this invention. Explanatory drawing which shows an example which linked | related the daily demand electric power and set the electricity rate unit price which changes with time zones.

  Embodiments of the present invention will be described below. FIG. 1 is a configuration diagram of an electricity bill calculating apparatus according to the first embodiment of the present invention. The dedicated unit power measuring instruments 11a to 11n are installed in dedicated units that receive power supplied from the power supplier for each user. Moreover, common part electric power meter 12a-12m is installed in the common part which a some user shares and receives electric power.

  As described above, consumers of power receiving equipment having a dedicated part and a shared part include, for example, apartment houses and tenant building facilities, and such consumers collectively receive power from power suppliers. The power is distributed to a dedicated part and a shared part to supply power to a plurality of users. The dedicated section is a dwelling unit or floor used by each individual, and receives power exclusively. The common part is a common part of the apartment house and the tenant building facility, and receives electric power in common. For example, a lighting device at a building entrance, a common parking lot, and an elevator.

  Considering the use of the public power supply system described above, private houses receive power exclusively through contracts with power suppliers, so they become dedicated sections, and the public power supply system is used by multiple users. Since it becomes, it corresponds to a common use part.

The dedicated unit power measuring instruments 11a to 11n measure the amount of power used in the dedicated unit, add time information to the amount of power used by the user, and measure the dedicated unit power consumption for each time zone. Similarly, the common unit power measuring devices 12a to 12n measure the amount of power used in the common unit , and add user information and time information to the amount of power used by the user to use the common unit for each time zone. Measure the amount of power.

  The dedicated unit power measuring instruments 11a to 11n and the shared unit power measuring instruments 12a to 12m have a communication function, and the dedicated unit power consumption and the shared unit power measuring instrument 12a measured by the dedicated unit power measuring instruments 11a to 11n. The shared unit power consumption measured at ˜12 m is transmitted to the server 15 via the local area network (LAN) 13 and the Internet 14. The server 15 includes a calculation unit 16 and a storage unit 17. The storage unit 17 stores an electricity bill unit price table 18.

  The calculation unit 16 of the server 15 is configured so that each user can use the dedicated unit power consumption measured by the dedicated unit power meters 11a to 11n and the shared unit power consumption measured by the shared unit power meters 12a to 12m. Aggregate the total amount of power used in the dedicated and shared units for each time period based on the time information. In addition, the electricity charges are totaled for each individual user based on the electricity charge unit price table 18 stored in the storage unit 17. The total power consumption and the electricity charge for each time zone of each user A to N tabulated by the calculation unit 16 are stored in the storage unit 17.

  The total power consumption and the electricity charge for each user's time zone stored in the storage unit 17 are provided to the terminal devices 19a to 19n via the Internet 14 in response to a request from the user's terminal devices 19a to 19n. Is done. Thereby, the user can confirm the total power consumption and the electricity charge for each time zone, and can contribute to the suppression of the power consumption by the user at the peak time of power demand. Furthermore, it can contribute to the reduction of the user's electricity bill.

  Next, the total power consumption for each user's time zone counted by the calculation unit 16 will be described. FIG. 2 is a graph showing an example of the total amount of power used for each user's time zone that is aggregated by the electricity rate calculation apparatus according to the embodiment of the present invention. In FIG. 2, the case of 1 hour unit is shown as a time zone of the power used. Instead of 1 hour unit, it may be 30 minute unit or 20 minute unit. Also, the power consumption in the dedicated part is shown with a white bar graph, and the power consumption in the common part of the apartment house (or tenant building facility) of the power consumption in the common part is shown with a shaded bar graph, Electric power used in an external common part (for example, a public power supply system) is indicated by a hatched bar graph.

  As shown in FIG. 2, from 23:00 to 6:00, in the common part of its own apartment house (or tenant building facility), for example, the battery of the electric vehicle was charged, so in the common part at that time The electric power used is totaled by the electric power used by the dedicated section. In addition, from 9 o'clock to 10 o'clock, for example, a personal computer is used in an external common part (for example, a public power supply system), so the power used in the common part at that time is totaled with the power used in the dedicated part. Has been.

Similarly, from 10:00 to 12:00, power was used in the common part of the apartment complex (or tenant building facility) and the external common part, so the power used in the two common parts at that time was dedicated. The total power used by the department is counted. From 12:00 to 14:00 , the amount of power used in the common part of the apartment house (or tenant building facility) is totaled and summed with the power consumed by the dedicated part. Thus, in the calculating part 16, the total electric power consumption which each user used by the exclusive part and the common part is totaled for every time slot | zone.

  Next, the contents of the electricity rate unit price table 18 stored in the storage unit 17 of the electricity rate calculation device of the present invention will be described. FIG. 3 is an explanatory diagram showing an example in which the unit price of the electricity charge according to the first embodiment of the present invention is set in association with the daily power consumption. FIG. FIG. 3B is an explanatory diagram of the unit price of electricity when the user suppresses the power used at the peak of power demand. FIG. 3 shows the case of the electricity bill unit price table 18 in which the electricity bill increases according to the amount of power used.

  As shown in FIG. 3A, the electric power consumption P is lower than the first set value P1 with respect to the used electric power P, and the electric power unit price C1 is lower, and the used electric energy P exceeds the first set value P1. The range below the second set value P2 is an ordinary electricity unit price C2, and the range where the power consumption P exceeds the second set value P2 is a high electricity unit price C3.

  From 22:00 to 6:00, the power consumption P is less than or equal to the first set value P1, so the electricity price unit price C1 is low. That is, the electricity bill for that time zone is P × time × C1.

  From 6 o'clock to 12 o'clock, from 15 o'clock to 17 o'clock, and from 19 o'clock to 22 o'clock, the power consumption P exceeds the first set value P1 and is equal to or less than the second set value P2, so A cheap electricity rate unit price C1 is applied up to 1 set value P1, and a normal electricity rate unit price C2 is applied for the amount of power usage P exceeding the first set value P1 (P-P1). That is, the electricity bill in that time zone is P1 × time × C1 + (P−P1) × time × C2.

  From 12 o'clock to 15 o'clock and from 17 o'clock to 19 o'clock, the amount of power used P exceeds the second set value P2, so a cheap electricity unit price C1 is applied when the amount of power used P is up to the first set value P1. The normal power unit price C2 is applied to the amount (P2-P1) in which the power consumption P exceeds the first setting value P1 and is equal to or less than the second setting value P2, and the power consumption P exceeds the second setting value P2. The higher unit price C3 is applied to the portion (P-P2). That is, the electricity bill in that time zone is P1 × time × C1 + (P2−P1) × time × C2 + (P−P2) × time × C3.

  In this way, since the unit price of electricity is increased according to the amount of power used, the user can use power during the day when the amount of power used increases as shown in FIG. For example, the amount of power used is suppressed so as not to exceed the first set value P2 so that the amount does not increase. Thereby, the electric power used at the peak of the daytime electric power demand can be suppressed.

  The use of electric power suppressed in the daytime when the amount of power used is large is used in the morning and evening when the amount of power used is decreasing. For example, charging the battery of an electric vehicle or using a personal computer is performed in the morning, evening or even late at night when the usage fee is shifted and the electricity bill is reduced. FIG. 3 (b) shows a case where the use of power that is suppressed during the daytime when the amount of power used is large is performed in the morning or evening when the amount of power is decreasing.

  Further, even during daytime, when the amount of power used by the user is small, a cheap electricity rate unit price C1 is applied up to the first set value P1, so that necessary power can be used without refraining. In addition, the electricity charges for the electric equipment used throughout the day can be kept at a low electricity charge.

  FIG. 4 is an explanatory diagram of another example of the contents of the electricity bill unit price table 18 stored in the storage unit 17 of the electricity bill calculating apparatus of the present invention. In addition to the example shown in FIG. 3, the other example is that the electricity charge increases according to the amount of power used, and in addition, the peak time period T of power demand (for example, from 11:00 to 15:00) In the period of time), for the amount of power used exceeding the predetermined power amounts P1 and P2, the unit price of electric charges obtained by adding additional charges α and β to the unit prices of electric charges C2 and C3 corresponding to the amount of used electric power It is set as Table 18.

  As shown in FIG. 4, it is the same as the example shown in FIG. 3 in a time zone where the power demand is not at its peak, for example, from 0 o'clock to 11 o'clock and from 15 o'clock to 24 o'clock. In other words, the electric power unit price C1 is a cheap unit price C1 when the electric power consumption P is less than or equal to the first set value P1, and the electric power consumption P exceeds the first setting value P1 and the second setting value P2 or less. Is an ordinary electricity unit price C2, and in a range where the power consumption P exceeds the second set value P2, the electricity unit price C3 is high.

  On the other hand, in the power demand peak time zone T, for example, the time zone from 11:00 to 15:00, the range in which the used power amount P is less than or equal to the first set value P1 is lower than the used power amount P. C1, and the range where the power consumption P exceeds the first set value P1 and is less than or equal to the second set value P2 is set to the first higher electricity bill unit price C2 + α obtained by adding the surcharge α to the normal electricity bill unit price C2, and the used power amount P In the range where the value exceeds the second set value P2, the second higher electricity bill unit price C3 + β is obtained by adding the premium charge β (β> α) to the higher electricity bill unit price C3.

  For example, from 11 o'clock to 12 o'clock, the power consumption P exceeds the first set value P1, so a cheap electricity unit price C1 is applied up to the first set value P1 and exceeds the first set value P1. 2 The 10% electricity charge unit price C2 + α is applied to the amount (P2-P1) that is equal to or less than the set value P2. Therefore, the electricity bill for that time zone is P1 × time × C1 + (P−P1) × time × (C2 + α).

  In addition, from 12 o'clock to 15 o'clock, the power consumption P exceeds the second set value P2, so a cheaper electricity unit price C1 is applied up to the first set value P1 and exceeds the first set value P1. The first set high electricity bill unit price C2 + α is applied to the portion (P2-P1) less than or equal to the set value P2, and the second set high electricity bill unit price C3 + β is applied to the portion exceeding the second set value P2 (P-P2). . That is, the electricity bill in that time zone is P1 × time × C1 + (P2−P1) × time × (C2 + α) + (P−P2) × time × (C3 + β).

  In this way, basically, the electricity price is such that the unit price of the electricity charge increases according to the amount of power used, but in the time period T at which the power demand is peaked, a predetermined power amount (for example, the first set value) The amount of power used exceeding P1 or the second set value P2) is a unit price of electricity that is obtained by adding an additional charge (for example, α or β) to the unit price of electricity according to the amount of power used.

  As a result, the user can suppress the amount of power used so that the amount of power used does not increase in the peak time period T of the power demand, and thus can suppress the power used at the peak of power demand.

  Even during daytime, when the user's power consumption is low, the cheap unit price C1 is applied up to the first set value P1, so the necessary power can be used without refraining from 1 Electricity charges for electric equipment used during the day can be kept at a low price.

  According to the first embodiment of the present invention, since the total power consumption of the power consumption used by the user in the dedicated section and the power consumption used in the shared section is tabulated for each time zone, the peak of power demand This can contribute to the reduction of power consumption by users at times. Depending on the amount of power used, the unit price of electricity will increase, and the amount of power used that exceeds the specified amount of power in the peak time period T of power demand will depend on the amount of power used. Since the electricity unit price is obtained by adding a surcharge to the electricity unit price, the user can contribute to the reduction of the electricity cost by averaging the power usage.

  In other words, the necessary power can be enjoyed at a reasonable power rate for a certain amount of power or less, regardless of the time, even when the power demand is at its peak. An incentive to move the amount of power used beyond that to a time zone where there is room for other usage results will work, and it will be possible to save power according to individual usage patterns. In addition, when purchasing power in a lump like an apartment house and supplying the power to each household, even if it is a collection of households that use various types of electricity, the overall maximum power consumption is suppressed. It can be a mechanism. As a result, it leads to reduction of the power purchase cost of the apartment house.

  Next, a second embodiment of the present invention will be described. FIG. 5 is a configuration diagram of an electricity bill calculating apparatus according to the second embodiment of the present invention. This second embodiment is different from the first embodiment shown in FIG. 1 in that the dedicated part and the shared part are smart devices that identify the user and type of the electrical device and supply power when the plug is inserted. The outlet 20 is installed, and the calculation unit 16 uses the power to limit the power consumption of each user when the total power consumption totaled for each user's time zone exceeds the upper limit set value Pu. A power limit command is output to the smart outlet 20 of the dedicated part and the shared part. The same elements as those in FIG. 1 are denoted by the same reference numerals, and redundant description is omitted.

  A smart outlet 20 that identifies the user and type of the electrical device and supplies power when the plug is inserted is installed in the dedicated unit and the shared unit. FIG. 5 shows a case where a plurality of smart outlets 20 are respectively installed in the dedicated part and the shared part.

  The amount of power used by inserting a plug into each smart outlet 20 is measured by a meter (power meter) 21 of dedicated unit power measuring instruments 11a to 11n and shared unit power measuring instruments 12a to 12m corresponding to each smart outlet 20. Each is measured. Each meter 21 measures the amount of power with an analog signal, and the power consumption of the analog signal measured by the meter 21 is converted into the power consumption of a digital signal by the A / D converter 22, and the gateway 23. Is transmitted to the computing unit 16 of the server 15 via the LAN 13 and the Internet 14.

  Based on the dedicated unit power consumption measured by the dedicated unit power meters 11a to 11n and the shared unit power consumption measured by the shared unit power meters 12a to 12m, the calculation unit 16 allows each user to use the dedicated unit and Aggregate the total amount of power used in the common area by time period. In addition, the electricity charges are totaled for each individual user based on the electricity charge unit price table 18 stored in the storage unit 17. The total power consumption and the electricity charge for each time zone of the individual users A to N counted by the calculation unit 16 are updated and stored in the storage unit 17. The storage unit 17 stores electrical device information for each user A to N. Furthermore, the storage unit 17 stores in advance an upper limit set value Pu of power used by the user.

  FIG. 6 is an explanatory diagram of an example of electrical equipment information for each user A to N. The electrical device information stores electrical devices a to k used by the user, their rated power usage, and usage priority, and the measured power usage is updated and stored. For example, information such as refrigerators, air conditioners, dryers, electric razors, IH cookers, vacuum cleaners, washing machines, electric cars, TVs, PCs, etc. used by users for each electric device, its rated power consumption, these electric devices The priority of use, and the actually used power when these are used are stored. The total of actually used electric power of each electric device of the user is the total electric energy used for each user's time zone.

  The priority of use of the electric device is set so that the priority of the electric device for which it is difficult to shift the use time is set high, and the priority of the electric device having few problems even if the use time is shifted is set low. For example, the priority is set high for a refrigerator or an IH cooker, and the priority is set low for a dryer or an electric razor. This is because when the power usage of individual users is limited, it is possible to preferentially limit the use of electric devices with low priority of use.

  The computing unit 16 determines whether or not the total power consumption totaled for each user's time zone has exceeded the upper limit set value Pu, and the total power usage aggregated for each user's time zone is the upper limit setting. When it is determined that the value Pu has been exceeded, a usage power limit command for limiting the usage power of the user is output to the gateway 23 of the dedicated unit power meter 11 i of the user via the Internet 14 and the LAN 13.

  The gateway 23 of the dedicated unit power meter 11i of the user that has received the power usage restriction command is connected to the smart outlet 20 connected to the dedicated unit power meter 11i of the user and the shared unit power meters 12a to 12m. A power usage limit command for limiting the power usage of the user is output to the smart outlet 20 to be used. This power usage restriction command is a command for preferentially restricting the use of an electric device having a low priority of use of the electric device information shown in FIG.

  That is, when the calculation unit 16 determines that the total amount of power used for each user's time zone exceeds the upper limit set value Pu, the calculation unit 16 determines the electrical device used by the user and prioritizes use. When any of the electric devices is prohibited from use in order of increasing degree, it is determined whether the total amount of power used by the user does not exceed the upper limit set value Pu. Then, a command to stop power supply to the smart outlet 20 to which an electrical device with a low priority of use is connected so that the total power usage amount of the user does not exceed the upper limit set value Pu (use power limit) Is output.

  The smart outlet 20 has an arithmetic processing means and a switch, and when receiving the power usage restriction command from the arithmetic unit 16, the arithmetic processing means turns off the switch of the smart outlet 20 to which the electric device whose use is prohibited is connected. And Thereby, as shown in FIG. 7, the user can use the power so that the total power consumption P does not exceed the upper limit set value Pu.

  On the other hand, when the plug of the electric device is not connected to the smart outlet 20, the switch is off, and the plug of the electric device is connected to the smart outlet 20, and the user of the connected electric device and the electric device are connected. Is turned on when there is no power usage restriction command.

  That is, when a plug of an electrical device is connected to the smart outlet 20, first, the user of the connected electrical device and its type are identified by the arithmetic processing means. An IC chip storing user identification information and electrical device type information is embedded in the plug of the electric device, and the arithmetic processing means of the smart outlet 20 reads the information of the IC chip of the plug, and the smart outlet The user of the electrical equipment connected to 20 and the type of the electrical equipment are identified.

  The arithmetic processing means, when there is no power usage restriction command from the arithmetic unit 16, calculates the total power consumption of the user in that time zone and the rated power usage of the electrical equipment connected to the smart outlet 20. The total power amount (referred to as the predicted total power amount) is calculated, and when the predicted total power amount does not exceed the upper limit set value Pu, the smart outlet 20 is turned on to enable power supply. As a result, it is possible to use an electric device newly connected to the smart outlet 20. That is, the electric device can be used when the switch of the electric device is turned on.

  On the other hand, when the predicted total power amount exceeds the upper limit set value Pu, or when there is already a power usage restriction command from the calculation unit 16, the arithmetic processing means of the smart outlet 20 is connected to the smart outlet 20. The operation unit 16 is inquired about the priority of use of the electric device.

  When there is an inquiry from the arithmetic processing means of the smart outlet 20, the arithmetic unit 16 determines again the electric device used by the user and includes the electric device newly connected to the smart outlet 20. When any of the electric devices is prohibited from use in order of increasing priority, it is determined whether the total power consumption of the user does not exceed the upper limit set value. Then, the calculation unit 16 instructs the smart outlet 20 to which the electrical device with a low priority of use is connected so that the total power consumption of the user does not exceed the upper limit set value (command ( (Power usage restriction command) is output. The arithmetic processing means of the smart outlet 20 turns off the switch of the smart outlet 20 to which the electric device whose use is prohibited is connected when receiving the use power restriction command from the calculation unit 16.

  As a result, there is no additional use of a new electric device, but when the load of the electric device in use fluctuates and the total power consumption exceeds the upper limit set value Pu, or a plug has already been inserted. When there is an unused electrical device and the unused electrical device is switched on and newly used and the total power consumption exceeds the upper limit set value Pu, or a new electrical device is added to the smart outlet 20 When the expected total power amount including the newly connected electrical device exceeds the upper limit set value Pu, the power consumption can be limited.

  According to the second embodiment, when the user's total power consumption P or the predicted total power amount exceeds the upper limit set value Pu, the smart outlet 20 connected to the user's dedicated power meter 11i, And a power outlet restriction command for restricting the power consumption of the user is output to the smart outlet 20 connected to the common-unit power measuring devices 12a to 12m, and the electric equipment with a low priority for use by the user is output. Therefore, the power can be used so that the total power consumption P does not exceed the upper limit set value Pu.

  Accordingly, the electricity charge can be reduced as a whole with respect to the electricity charge that increases in accordance with the amount of power used, and the electricity charge that is further added with an extra charge in the peak time zone T of the power demand. Moreover, the peak of power demand can be suppressed for the power supplier.

DESCRIPTION OF SYMBOLS 11 ... Dedicated part electric power meter, 12 ... Shared part electric power meter, 13 ... LAN, 14 ... Internet, 15 ... Server, 16 ... Calculation part, 17 ... Memory | storage part, 18 ... Electricity rate unit price list, 19 ... Terminal device, 20 ... Smart outlet, 21 ... Meter, 22 ... A / D converter, 23 ... Gateway

Claims (2)

Dedicated unit power measurement that measures the amount of power used by the dedicated unit for each time period by giving time information to the amount of power used by the user in the dedicated unit that receives power supplied from the power supplier for each individual user And
A shared unit power meter for measuring user unit power consumption for each time period by giving user information and time information to the amount of power used by the user in a shared unit that is shared by multiple users and receiving power,
Total power used by individual users in the dedicated unit and the shared unit based on the dedicated unit used power amount measured by the dedicated unit power meter and the shared unit used power amount measured by the shared unit power meter. An arithmetic unit that counts the amount for each time zone ;
A smart outlet that identifies the user and type of the electrical device and supplies power when a plug is inserted in the dedicated part and the shared part;
When the total power consumption totaled for each user's time zone exceeds the upper limit set value, the calculation unit sends a power usage limit command for limiting the power usage of each user to the dedicated unit. And output to the smart outlet of the common part, and when there is a power usage restriction command, the smart outlet to which the electrical device with low priority of use is connected turns off the switch,
The smart outlet identifies the user and type of the electrical device when the plug of the electrical device is connected, and when there is no power usage restriction command, the total power consumption of the user in that time zone And the rated usage power of the electrical equipment connected to the smart outlet, and if the total power does not exceed the upper limit setting value, turn on the smart outlet and supply power. An electricity bill calculation device characterized in that There is a server having a storage unit and a calculation unit, and a dedicated unit that receives power supplied from a power supplier for each individual user and a shared unit that receives power shared by a plurality of users When the plug is inserted, a smart outlet is installed to identify the user and type of the electrical device and supply power, and the smart outlet has an arithmetic processing means and a switch,
A dedicated unit power measuring step for measuring a dedicated unit amount of electric power used for each of the time periods by applying the time information to the amount of power used by the user in a dedicated section dedicated section power meter,
A common unit power measuring step of measuring the common unit electric power consumption of each user information and time zone by applying the time information to the amount of power used by the user in the common unit in the shared portion power meter,
Total power used by each user in the dedicated unit and the shared unit based on the dedicated unit used power amount measured in the dedicated unit power measurement step and the shared unit used power amount measured in the shared unit power measurement step A total power consumption totaling step in which the amount is totaled by the calculation unit of the server for each time period;
The calculation unit of the server determines whether or not the total power consumption of individual users totaled for each time period in the total power consumption totaling step exceeds an upper limit set value, and the total of individual users A power usage limit command output step for outputting a power usage limit command for limiting the power usage of individual users to the smart outlet of the dedicated unit and the shared unit when the power usage exceeds an upper limit set value; and
When there is a use power limit command for the smart outlet, the smart outlet calculation processing means turns off the smart outlet connected to the electrical device with a low priority of use and stops the supply of power. A supply stop step;
When a plug is connected to the smart outlet, an identification step of identifying the user and type of the electrical device by the arithmetic processing means of the smart outlet;
When the user and type of the electrical device are identified by the identification step, the limit command for determining whether the use power limit command is output by the use power limit command output step by the arithmetic processing means of the smart outlet Presence / absence determination step;
A use permission step of enabling power supply from the smart outlet by the smart outlet arithmetic processing means when it is determined that there is no use power restriction command in the restriction command presence determination step. Electric bill calculation method.

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