JP2011258020A - Charge contract notification device, charge contract notification system and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a charge contract notification device, a charge contract notification system and a program which notify another charge contract of which an electricity charge is cheaper than the one of the actual charge contract, based on a research according to an use state of each device using an electrical power.SOLUTION: A server device receives and stores information on time zones of power usage and an electric power consumption of each of devices, which is transmitted from a transmission device installed at each house of contractors. The server device selects the device among a number of devices in order of decreasing power consumption, calculates an electricity charge according to a charge contract other than an actual charge contract of the contractor each time a time zone of power usage for the selected device is shifted for a certain period of time and determines if the electricity charge is cheaper than the one of the actual charge contract. When the server device determines that the electricity charge becomes cheaper than the actual charge, the server device identifies the shifted time zone of power usage as a recommendable time zone of power usage for the selected device and notifies the contractor of the recommendable time zone with the another charge contract.

Description

  The present invention relates to a rate contract notifying device, a rate contract notifying system, and a program for notifying other contract fees that have a lower electricity rate than the rate contract being contracted based on the usage status of each device that uses power.

  Electricity is supplied from the power company to the residence of the contractor who has signed a fee contract with the power company. The contractor pays an electric power charge according to the total power consumption of a plurality of devices using the supplied power to the electric power company according to the charge contract. There has been proposed a system in which a smart meter that obtains power consumption and power usage time from time to time and transmits it to a server device installed in an electric power company is installed in a contractor's residence, and the server device calculates an electricity bill ( For example, see Patent Document 1 or 2.) The total power consumption varies depending on the usage status of each device, and varies depending on time, date, season, and the like.

  An electric power company has a power generation facility according to the peak time of electric power demand in order to stably supply electric power to a plurality of contractors. If the amount of fluctuation in the total power consumption of each contractor is equalized by reducing the peak power consumption, the equipment costs required for the power generation facilities are reduced. Therefore, the electric power company may make it possible to make a contract for a fee that is set so as to encourage the use of electric power during a time period when the electric power demand has been low in the past. For example, there is a charge contract that is set to reduce the electricity charge for the power consumption of equipment used at night when the demand for power is low. Patent Document 3 describes a technology for presenting to a contractor a charge contract that reduces the electricity charge according to the total power consumption of a plurality of devices.

JP 2005-164561 A JP-A-11-144177 JP 2008-146116 A

  However, the conventional technology has a problem that it is not possible to present a contract with a contract that reduces the electricity charge according to the usage status of each of a plurality of devices.

  The present application has been made in view of such circumstances. The purpose is to present to the contractor a charge contract that reduces the electricity charge according to the usage status of each of the multiple devices by moving the power usage time zone of some devices for a certain time and calculating the electricity bill. It is an object of the present invention to provide a charge contract notification apparatus, a charge contract notification system, and a program that can be used.

  The rate contract notification device disclosed in the present application accepts the power usage of each of a plurality of devices to which power is supplied based on the rate contract, and is charged for the total power usage of the plurality of devices according to the rate contract. In the charge contract notification device for notifying other charge contracts that are charged an electricity charge lower than the electricity charge, a receiving unit for receiving the power usage amount and the power use time period of each of the plurality of devices, and the plurality of devices A selection unit that selects some devices, a reference time determination unit that determines a reference time associated with each of the plurality of devices based on a power usage time period of each of the plurality of devices received by the reception unit; A moving unit that moves a power usage time zone of each of the devices selected by the selection unit for a certain period of time, and a power usage time zone of each of the some devices that is moved by the moving unit is the reference time. A time zone determination unit that determines whether or not the reference time determined in association with each of the devices is included by the determination unit, and a movement by the moving unit when the time zone determination unit determines that the reference time is included A calculation unit that calculates an electricity charge charged for the total power consumption based on the power usage time period and the other charge contract, and the electricity charge calculated by the calculation unit is an electric charge based on the charge contract A rate determining unit that determines whether the rate is lower than the rate; and when the rate determining unit determines that the rate is not lower, when the time zone determining unit determines that the reference time is included, the mobile unit uses the power usage time. The band is further moved for a certain time, and when the time zone determination unit determines that the reference time is not included, the selection unit selects another part of the device, and the movement unit sets the other part of the device. Power of If it is determined by the re-moving unit that moves the usage time zone for a certain period of time and the fee determining unit to be low, some devices selected by the selecting unit, the power usage time zone moved by the moving unit, and the other fee An informing unit for informing the contract.

  According to one aspect of the device, by calculating the electricity bill by moving the power usage time zone of some devices for a certain period of time, a fee contract that reduces the electricity bill according to the usage status of each of the plurality of devices It can be presented to the contractor.

It is a schematic diagram which shows the example of an electricity bill calculation system. 3 is a block diagram illustrating an example of internal hardware of a server device according to Embodiment 1. FIG. It is a chart which shows the example of a record layout of a daily usage amount table. It is a figure which shows the example of a record layout of a daily use condition table. It is a chart which shows the example of a record layout of the frequency table every month. It is a chart which shows the example of a record layout of a monthly usage table. It is a chart which shows the example of a record layout of a monthly usage status table. It is a chart which shows the example of a record layout of a metered rate table. It is a graph which shows the example of a record layout of a charge table classified by time zone. It is a chart which shows the example of a record layout of a charge table according to a season. It is explanatory drawing for demonstrating the determination method of a recommended time slot | zone. It is explanatory drawing for demonstrating the determination method of a recommended time slot | zone. It is a flowchart which shows the procedure of a charge contract alerting | reporting process. It is a flowchart which shows the procedure of an apparatus determination process. 4 is a flowchart showing a procedure of recommended time zone determination processing according to the first embodiment. 4 is a flowchart showing a procedure of recommended time zone determination processing according to the first embodiment. It is a schematic diagram which shows the example of a charge contract alerting | reporting screen. It is a schematic diagram which shows the example of a recommendation time slot | zone alerting | reporting screen. 10 is a flowchart illustrating a procedure of recommended time zone determination processing according to the second embodiment. 10 is a flowchart illustrating a procedure of recommended time zone determination processing according to the second embodiment.

Embodiment 1
Hereinafter, embodiments will be specifically described with reference to the drawings. A rate contract notification system according to the present application includes a transmission device installed in a residence of each of a plurality of contractors who have signed a rate contract with an electric power company, and a server device that communicates with the transmission device It is the electricity bill calculation system which has. The transmission device acquires the power usage amount and the power usage time zone of each device that uses the power supplied to each residence, and transmits it to the server device. The server device receives the power usage amount and the power usage time zone sent from the transmission device, and calculates the electricity bill according to the total power usage at the contractor's residence according to the contract with which the contractor is under contract. To do.

  In addition, the server device contracts other fee contracts that make the electricity charges cheaper than the charge contracts contracted by the contractor by comparing the electricity charges calculated by changing the power usage time zone of each device. It also functions as a charge contract notification device that notifies the person. The server device may be arranged in each home to notify the fee contract. In addition, a function for notifying a fee contract of the server device may be incorporated in each transmission device. In the present embodiment, an electricity rate calculation system including a transmission device arranged in each home and a server device arranged in an electric power company and having a function of notifying a rate contract will be described as an example. Also, as various fee contracts, pay-per-use fee contracts, hourly fee contracts, and seasonal fee contracts, which will be described later, are given as examples.

  FIG. 1 is a schematic diagram illustrating an example of an electricity bill calculation system. The electricity price calculation system includes a transmission device 3 arranged in the residence 1 of each of a plurality of contractors who have signed a price contract with an electric power company. The television (television broadcast receiver) 11, the air conditioner (air conditioner) 12 and the washing machine 13 in the residence 1 and the electric vehicle 14 outside the residence 1 use electric power supplied from the power company to the residence 1. Multiple devices. Each of the television 11, the air conditioner 12, the washing machine 13, and the electric vehicle 14 sends an on time or an off time indicating a time when the use of power is started or ended, and a power usage amount to the transmission device 3 via a communication line (not shown). Send.

  For example, the transmission device 3 and each device may perform power line carrier communication using a power line that supplies power to the television 11, the air conditioner 12, the washing machine 13, the electric vehicle 14, and the transmission device 3 as a communication line. In addition, the transmission device 3 and each device communicate with each other using, for example, a residential LAN (Local Area Network) using wired communication via an optical fiber installed in the residence 1 or wireless communication via radio waves. May be performed.

  The transmission device 3 is a smart meter or the like, for example, and transmits the on time, the off time, and the power usage received from each device to the server device 4 arranged in the power company via the network N such as the Internet. The server device 4 is installed in a service window of an electric power company or a department related to electricity charges, and includes an operation unit 46 operated by each contractor or an employee of the electric power company. In addition, the server device 4 includes a display unit (notification unit) 45 such as a liquid crystal display for notifying the calculated electricity bill or an inexpensive fee contract.

  FIG. 2 is a block diagram illustrating an example of internal hardware of the server device 4 according to the first embodiment. The server device 4 is a server computer, a PC (Personal Computer) or the like, and includes a CPU (Central Processing Unit) 40 for controlling each internal hardware part of the server device 4 via a bus 40a. The server device 4 also includes a ROM (Read-Only Memory) 41 in which firmware such as BIOS (Basic Input / Output System) necessary for the operation of each part of the internal hardware is stored. The server device 4 further includes a RAM (Random Access Memory) 42, an HDD (Hard Disk Drive) 43 for storing various tables and data, and a recording medium reading unit 48.

  The server device 4 installs the program 481 by reading the program 481 from the recording medium 480 inserted in the recording medium reading unit 48 and storing it in the HDD 43. The HDD 43 includes contract information 430 indicating contracts under contract by each contractor, a daily usage table 431 and a daily usage status table 432 indicating the power usage and usage status of each device on a daily basis, and monthly basis. A monthly count table 433 indicating the number of times each device is turned on / off is stored. Further, the HDD 43 stores a monthly usage amount table 434 and a monthly usage state table 435 indicating the power usage amount and the usage state of each device on a monthly basis.

  Further, the HDD 43 stores a pay-per-use charge table 436, a charge table by time zone 437, and a charge table by season 438 that indicate the contents of contracts for three different types of charge contracts. The server device 4 also includes a receiving unit (accepting unit) 46 that receives an on time, an off time, and a power usage amount transmitted from the transmitting device 3, and a calendar unit 47 that outputs a date and time. . Based on the on-time, off-time, and power usage received from the receiving unit, the CPU 40 stores a daily usage table 431, a daily usage status table 432, a monthly frequency table 433, and a monthly usage table stored in the HDD 43. 434 and the monthly usage state table 435, or the contents already stored are rewritten.

  The CPU 40 also functions as a selection unit, a reference time determination unit, a moving unit, a time zone determination unit, a calculation unit, a fee determination unit, and a re-moving unit, which will be described later, by reading the program 481 stored in the HDD 43 into the RAM 42 and executing it. To do. The RAM 42 stores variables that are generated when the CPU 40 executes the program 481.

  FIG. 3 is a chart showing a record layout example of the daily usage amount table 431. The daily usage table 431 stores the electrical usage of each device in association with the customer ID corresponding to each contractor, the device ID that is identification information of each device, the model name, and the reception date. The electricity usage amount of each device is stored in the daily usage amount table 431 by adding up the electricity usage amount for each predetermined time based on the electricity usage amount received from each device by the server device 4 and the on time and the off time. . In the example shown in FIG. 3, the power usage amount of each device for every hour of 24 hours is summed and stored. For example, the power usage amount “0.01” kWh is stored at 20:00 in association with the customer ID “1234”, the device ID “4321”, the model name “TV”, and the reception date “2008/12/01”.

  This is the power usage within approximately one hour from 20 o'clock to 20:59:59 on December 1, 2008 on the television with the device ID “4321” placed in the home of the contractor corresponding to the customer ID “1234”. It shows that the total amount is 0.01 kWh. Further, the server device 4 sums up the daily power usage and stores the total value in the daily usage table 431. In FIG. 3, for example, a total value “0.06” kWh is stored in association with the television, and the television uses 0.06 kWh of power for one day on December 1, 2009. ing.

  FIG. 4 is a chart showing a record layout example of the daily usage status table 432. The daily usage status table 432 stores the usage status of each device in association with the customer ID, device ID, model name, and reception date. The usage state includes an on time, an off time, a core time, a power usage time, and a power usage amount. As the core time, when the server device 4 receives the on time and the off time, the CPU 40 calculates a time (reference time) between the on time and the off time and stores it in the daily usage state table 432. Thus, the CPU 40 functions as a reference time determination unit that determines a reference time associated with each device.

  In FIG. 4, for example, the on time “18:00” and the off time “23” are associated with the customer ID “1234”, the device ID “4321”, the model name “TV”, and the reception date “2008/12/01”. : 40 ”, core time“ 20:50 ”, usage time“ 5:40 ”, and power consumption“ 0.06 ”kWh are stored. This is because the TV with the device ID “4321” placed in the contractor's home corresponding to the customer ID “1234” uses power for 5 hours and 40 minutes from 18:00 to 23:40, and the power consumption is 0. .06 kWh. Further, 20:50, which is substantially in the middle of the power usage time zone from 18:00 to 23:40, is calculated and stored as the core time.

  For devices that were not turned on or off on the reception date, the on-time, off-time, core time, and usage time are not stored in the daily usage status table 432. In FIG. 4, for example, only the power usage amount “1.20” kWh is stored in association with the customer ID “1234”, the device ID “3214”, the model name “refrigerator”, and the reception date “2008/12/01”. ing. This indicates that on December 1, 2008, the refrigerator with the device ID “3214” was using power all day and was not turned on or off. In addition, even for devices that do not use power all day long, the on time, off time, core time, and usage time are not stored in the usage state table 432, and are substantially zero power consumption associated with the device. Is stored in the use state table 432.

  FIG. 5 is a chart showing a record layout example of the monthly frequency table 433. The monthly count table 433 stores the ON count and OFF count (ON / OFF count) for one month in each predetermined time zone of each device in association with the customer ID, device ID, model name, and reception date. Based on the daily usage state table 432, the server device 4 sums up the number of on-times and the number of off-times for a plurality of time slots for one month for each device, and stores each total value in the number-of-months table 433. . In the example shown in FIG. 5, one day is divided into a plurality of time zones at one-hour intervals, and the total values of the number of on times and the number of off times in each time zone are stored. For example, an ON count “8” is stored at 20:00 in association with a customer ID “1234”, a device ID “4321”, a model name “TV”, and a reception month “2008/12”.

  This is because the television set with the device ID “4321” placed in the contractor's home corresponding to the customer ID “1234” is approximately 1 hour from 20 o'clock to 20:59:59 in the month of December 2008. It is shown that the number of times of being turned on is eight times. Further, the server device 4 sums up the number of on-times and the number of off-times for one month, and stores each total value in the number-of-months table 433. In FIG. 5, for example, a total value “50” of the number of times of ON is stored in association with the television.

  A device in which the total value “0” of each of the number of on-times and the number of off-times is associated and stored in the monthly number of times table 433 is not turned on and off in one month of the reception month, and is a device that is always using a power supply or Indicates a device that is not using a power source. Such devices include, for example, refrigerators that always use a power source, and air conditioners that are always turned off in a specific season and do not use a power source for more than a month.

  FIG. 6 is a chart showing a record layout example of the monthly usage amount table 434. The monthly usage table 434 stores a total value for one month of the power usage for each of a plurality of time zones of each device in association with the customer ID, the device ID, the model name, and the reception month. Based on the daily usage table 431, the server device 4 totals the power usage for each of a plurality of time periods of each device for one month of the reception month, and stores it in the monthly usage table 431. In the example shown in FIG. 6, the power usage amount for each time period set at one hour intervals is totaled for one month of the reception month and stored in the monthly usage amount table 434. For example, the power usage amount “0.25” kWh is stored at 20:00 in association with the customer ID “1234”, the device ID “4321”, the model name “TV”, and the reception month “2008/12”.

  This is because the television set with the device ID “4321” placed in the home of the contractor with the customer ID “1234” is used within approximately one hour from 20:00 to 20:59:59 in the month of December 2008. It shows that the total value of the power consumption of the generated power is 0.25 kWh. Further, the server device 4 sums up the amount of electricity used in each time zone of each device, and stores a total value indicating the amount of power used in one month in the reception month of each device in the monthly usage table 434. In FIG. 6, for example, a total value “1.24” kWh is stored in association with the television.

  FIG. 7 is a chart showing a record layout example of the monthly usage status table 435. The monthly usage status table 435 stores the usage status of each device in association with the customer ID, device ID, model name, and reception month. The usage state is the average value of the on time and the off time per day in the reception month, the core time that is approximately halfway between the average value of the on time and the off time, the usage time that is the difference between the average value of the on time and the off time, Includes the average daily power usage. Based on the daily usage state table 432, the server device 4 calculates the average value of the on time, the off time, and the power usage amount of each device per day, and further calculates the core time and the power usage time for each month. The usage state table 435 is stored.

  In FIG. 7, for example, the average value of the on time “19:00”, the off time is related to the customer ID “1234”, the device ID “4321”, the model name “TV”, and the reception month “2008/12”. An average value “23:00”, a core time “21:00”, a usage time “4:00”, and a power usage amount “0.04” kWh are stored. The monthly usage state table 435 shows the usage tendency of each device in the reception month by storing the on / off time of each device and the average value of the power usage amount per day in the reception month.

  The monthly usage state table 435 stores an available flag associated with each device. In the availability flag, 1 is stored for devices that use power during the discount time zone specified by the hourly charge contract during the month of reception, and devices that do not use power during the discount time zone 0 is stored for. Whether or not the device uses power during the discount time period is determined by the server device 4 executing a device determination process described later.

  FIG. 8 is a chart showing a record layout example of the metered fee table 436. The pay-per-use charge table 436 shows a calculation method in the case of calculating the electricity charge according to the power consumption according to the pay-per-use charge contract. In a pay-as-you-go contract, the power charge is added to the fixed basic charge that is charged regardless of the power usage up to the predetermined power usage, according to the excess from the predetermined power usage. Will be charged. In the example shown in FIG. 8, 383.25 yen is charged as a basic charge for one contract exchanged between the electric power company and the contractor until the power usage amount is 11 kWh.

  In addition, in the example shown in FIG. 8, for each excess from 11 kWh to 120 kWh and each excess from 120 kWh to 300 kWh, 18.59 yen and 24.45 yen for each kWh are added to the basic charge. Is done. In the example shown in FIG. 8, for the excess exceeding 300 kWh, 18.59 yen is added to the basic charge every 1 kWh.

  FIG. 9 is a chart showing an example of a record layout of the hourly fee table 437. The time zone fee table 437 shows a calculation method in the case of calculating the electricity fee according to the power consumption according to the time zone fee contract. In the charge contract by time zone, a charge corresponding to the power usage amount is added to the basic charge charged according to the power usage amount regardless of the power usage time zone. The contractor is charged. In the example shown in FIG. 9, 1,155.00 yen is charged for one contract up to 10kVA, and 357.000 yen is added for each 1kVA for excess from 10kVA. The basic charge is charged to the contractor regardless of the power usage hours.

  In the example shown in FIG. 9, when the power usage time is daytime from 7 o'clock to 23 o'clock, 20.25 yuan is charged as the electric energy charge for every kWh until 90 kWh. In addition, when the power usage time is daytime from 7:00 to 23:00, the excess from 90 kW to 230 kWh and the excess exceeding 230 kWh are 26.55 yen and 28.92 yen for each kWh. It is added to the electricity charge. When the power usage time zone is at night from 23:00 to 7:00, 8.69 yen is added every 1 kWh regardless of the power usage. The night time zone from 23:00 to 7 o'clock is a discount time zone in which the electricity charge is discounted compared to the daytime time zone from 7 o'clock to 23 o'clock.

  FIG. 10 is a chart showing a record layout example of the seasonal charge table 438. Seasonal charge table 438 shows a calculation method in the case of calculating an electricity charge according to the amount of power used according to a seasonal charge contract. In the seasonal charge contract, the basic charge that is charged according to the amount of power used regardless of the power usage hours and seasons is different from the basic charge that is charged according to the power usage hours and seasons. It is added and charged to the contractor. In the example shown in FIG. 10, 1,575.000 yen is charged for one contract up to 10kVA, and 48.30 yen is added for each 1kVA for excess from 10kVA. The basic charge is charged to the contractor regardless of the power usage hours and season.

  When the power usage time is daytime from 7:00 to 23:00 and the power is used in the summer from July 1st to September 30th, 28.43 sen is added every 1kWh as the electricity charge Charged. In addition, when the power usage time is daytime from 7 o'clock to 23 o'clock and electric power is used in a season different from the summer, 23.73 yen is added every 1 kWh and charged as an electricity charge. The summer daytime from July 1st to September 30th is a discount season in which the electricity charge is discounted compared to the daytime in other seasons. When the power usage time is night from 23:00 to 7:00, 8.69 yen is added every kWh regardless of the season.

  11 and 12 are explanatory diagrams for explaining a method of determining a recommended time zone. The recommended time zone is such that the hourly rate calculated according to the hourly rate contract according to the contractor's past power usage is lower than the metered rate calculated according to the metered rate contract. Shows the recommended power usage time zone of each device. The recommended time zone is determined by seeking a power time zone in which the hourly charge is cheaper than the pay-as-you-go charge while moving the past power use time zone of the equipment that uses the power supplied to the contractor for a fixed time. Is done. FIG. 11 shows the states before and after the movement of the power usage time period when the core time of the device for which the recommended time period is determined is before the discount start time of the discount time period, arranged in the upper and lower stages, respectively. ing.

  Each of Ton and Toff in FIG. 11 indicates the average of the on time and off time of a specific device for one month. Tc in FIG. 11 indicates a core time that is approximately between Ton and Toff. Each of Ta and Tb in FIG. 11 indicates a discount start time and a discount end time in a discount time zone set in the time zone fee contract. The server device 4 selects a plurality of reception months for one year in order from the most recent reception month, and selects the devices in descending order of power consumption for one month from the devices indicated by the plurality of device IDs included in the data of each reception month. select. The server device 4 determines a recommended time zone for the selected device.

  When the core time Tc of the device selected as shown in the upper part of FIG. 11 is before the discount start time Ta, a predetermined constant time ΔT is added to each of the on time Ton and the off time Toff, and the power as shown in the lower part of FIG. Move usage hours closer to discounted hours. Each time the fixed time ΔT is added, a charge by time zone is calculated based on the ON time Ton and OFF time Toff after the addition, and is compared with the metered charge. When the hourly charge is lower than the metered charge, the added on time Ton and off time Toff are determined as the recommended on time and recommended off time indicating the recommended time zone.

  If the hourly charge is not lower than the metered charge, the power use time zone is made closer to the discount time zone by adding a certain time ΔT to the on time Ton and the off time Toff. When the hourly charge does not become cheaper than the pay-as-you-go charge, and the power usage time zone approaches the discount time zone until the on-time Ton is after the core time Tc, the on-time before the core time Tc or later Time Ton and off time Toff are determined as recommended time zones. When the server device 4 determines the recommended time zone for the selected device, the server device 4 sequentially selects other devices included in the selected reception month and similarly determines the recommended time zone.

  FIG. 12 shows the states before and after the movement of the power usage time zone when the core time of the device for which the recommended time zone is determined is after the discount end time of the discount time zone. ing. Since Ton, Toff, Tc, Ta, and Tb in FIG. 12 are the same as those in FIG. When the core time Tc is after the discount end time Tb as shown in the upper part of FIG. 12, the power usage time zone is discounted as shown in the lower part of FIG. 12 by subtracting a certain time ΔT from the on time Ton and the off time Toff. Move closer to the belt.

  Each time the fixed time ΔT is subtracted, a charge for each time zone is calculated based on the on time Ton and the off time Toff after the subtraction, and is compared with the metered charge. When the hourly charge is lower than the metered charge, the on time Ton and the off time Toff after the subtraction are determined as the recommended on time and the recommended off time indicating the recommended time zone. When the hourly charge is not cheaper than the metered charge, the power use time zone is made closer to the discount time zone by further subtracting the fixed time ΔT from the on time Ton and the off time Toff. If the hourly charge does not become lower than the pay-as-you-go charge, and the power usage time zone approaches the discount time zone until the off time Ton is before the core time Tc, the off time Ton is before the core time Tc. The on time Ton and the off time Toff before are determined as recommended time zones.

  When the server device 4 determines the recommended time zone for the selected device, the server device 4 sequentially selects other devices included in the selected reception month and similarly determines the recommended time zone. When the server device 4 determines the recommended time zone for all the devices included in the data for one year, the server device 4 calculates the charge for each time zone when power is used for each device in the recommended time zone. When it is cheaper than the metered rate according to the total power consumption, the contractor is notified to recommend the hourly fee.

  FIG. 13 is a flowchart showing the procedure of the charge contract notification process. The charge contract notification process is executed by the CPU 40 of the server device 4 when calculating the electricity charge according to the power consumption of the contractor. CPU40 receives customer ID corresponding to the contractor who calculates an electricity bill (step S11). Here, for example, the customer ID may be received by receiving an input operation of the customer ID in accordance with the input screen displayed on the display unit 44. The CPU 40 refers to the contract information 430 to determine whether or not the contractor corresponding to the accepted customer ID has contracted a metered rate contract (step S12).

  If the CPU 40 determines that the metered rate contract is made (YES in step S12), the CPU 40 sets the availability flag in the monthly status table 435 for each device that uses the power supplied to the contractor's home. A device determination process to be described later is executed (step S13). The CPU 40 executes, for each device, a recommended time zone determination process (to be described later) for determining a power usage time zone in which the electricity bill is reduced when power is used in accordance with a time zone fee contract (step S14). CPU40 calculates the charge according to time slot | zone according to the electric power consumption of the last one year based on the charge table | surface 437 according to time slot | zone (step S15).

  If it is determined in step S12 that the metered rate contract is not contracted (NO in step S12), the CPU 40 moves the process to step S15. After step S15, the CPU 40 calculates a metered fee according to the power consumption for the most recent year based on the metered fee table 436 (step S16). The CPU 40 calculates a seasonal fee table 438 corresponding to the power consumption of the most recent year based on the seasonal fee table 438 (step S17). The CPU 40 compares the calculated hourly charge, the metered charge, and the seasonal charge to determine a charge contract in which the lowest electricity charge is calculated (step S18).

  The CPU 40 determines whether the contractor has already contracted the determined fee contract with reference to the contract information 430 (step S19). When it is determined that the contract has been made (YES in step S19), the CPU 40 ends the charge contract notification process. When it is determined that the contract has not been made (NO in step S19), the CPU 40 displays a charge contract notification screen for notifying the determined charge contract on the display unit 44 (step S20), and ends the charge calculation process.

  FIG. 14 is a flowchart illustrating the procedure of the device determination process. The device determination process is executed by the CPU 40 in step S13 of the charge contract calculation process. The CPU 40 reads data for one year associated with the received customer ID from the monthly usage amount table 434 (step S31). The CPU 40 selects the device indicated by the device ID included in the head data together with the reception month (step S32). Here, the head data is data located at the head when the number of times of on and off associated with each of a plurality of sets including the customer ID, device ID, model name, and reception date is counted as one data. .

  The CPU 40 determines whether or not the total amount of power usage included in the data of the selected device is 0 (step S33). If the CPU 40 determines that the total value of power consumption is not 0 (NO in step S33), the CPU 40 reads out the data associated with the device ID and the reception month of the selected device from the monthly frequency table 433 (step S34). The CPU 40 determines whether or not the total number of off times included in the data read from the monthly count table 433 is 0 (step S35).

  If the CPU 40 determines that the total value of the number of off times is not 0 (NO in step S35), the discount time zone stored in the hourly rate table 437 is based on the data read from the monthly frequency table 433. A total value of the number of times of turning on at night is calculated (step S36). The CPU 40 determines whether or not the calculated total number of ON times in the discount time zone is 0 (step S37). If the CPU 40 determines that the total number of ON times in the discount time zone is not 0 (NO in step S37), the CPU 40 sets 1 to the available flag stored in the monthly usage status table 435 in association with the device ID of the selected device. Is set (step S38).

  The CPU 40 determines whether all the devices included in the read data for one year have been selected (step S40). When determining that all the devices have not been selected (NO in step S40), the CPU 40 selects the device included in the next data together with the reception month (step S41), and returns the process to step S33. If the CPU 40 determines in step S33 that the total amount of power used is 0 (YES in step S33), the CPU 40 determines that the device does not use power in the selected reception month, and associates it with the device ID of the device. The available flag stored in the usage status table 435 is set to 0 (step S39).

  If the CPU 40 determines in step S35 that the total number of OFF times is 0 (YES in step S35), the CPU 40 sets 0 in the available flag as a device that always uses power in the selected reception month. The process moves to S39. When the CPU 40 determines that the total value of the number of ONs in the discount time zone is 0 (YES in step S37), the CPU 40 sets the availability flag to 0 as a device that did not use power in the discount time zone in the selected reception month. Is set to step S39. If the CPU 40 determines that all the devices have been selected in step S40 (YES in step S40), the device determination process ends.

  15 and 16 are flowcharts showing a procedure of recommended time zone determination processing according to the first embodiment. The recommended time zone determination process is executed by the CPU 40 in step S14 of the charge contract calculation process. CPU 40 reads out data for one year associated with the received customer ID from monthly usage state table 435 (step S51). The CPU 40 sorts the read data in the reverse order of the reception month, and further sorts the data included in each reception month in descending order of power usage (step S52). The CPU 40 calculates a metered fee for each reception month based on the metered fee table 436 (step S53).

  The CPU 40 selects the latest reception month (step S54), and selects a device included in the top data of the selected reception month (step S55). Thereby, it selects in order from apparatus with much electric usage-amount, and the movement of an electric power usage time zone is performed. The CPU 40 calculates a power charge according to the power consumption of the remaining device included in the other data of the same reception month as the selected device as the power charge A based on the hourly charge table 437 (step S40). S56). The CPU 40 sets the on time and the off time of the selected device as the recommended on time and the recommended off time of the recommended time zone (step S57).

  The CPU 40 calculates a power charge according to the recommended time zone and the power usage of the selected device as the power charge B based on the time zone charge table 437 (step S58). The CPU 40 sums up the electric energy charge A, the electric energy charge B, and a stored fixed charge, which will be described later, and calculates an hourly charge (step S59). The CPU 40 determines whether or not the calculated time zone fee is lower than the metered rate for the selected reception month (step S60). If the CPU 40 determines that the hourly fee is not lower than the metered fee (NO in step S60), the usage stored in the monthly usage state table 435 in association with the device ID and the reception month of the selected device. It is determined whether or not the possible flag is 1 (step S61).

  If the CPU 40 determines that the available flag is 1 (YES in step S61), the discount start time stored in the hourly fee table 437 is associated with the device ID and the reception month of the selected device. It is determined whether or not it is after the core time stored in the monthly usage state table 435 (step S63). If the CPU 40 determines that it is after the core time (YES in step S63), the CPU 40 adds a fixed time to each of the recommended on time and the recommended off time in the recommended time zone (step S64). The CPU 40 determines whether or not the recommended on time obtained by adding a certain time is before the core time (step S65).

  If the CPU 40 determines that it is before the core time (YES in step S65), it returns the process to step S58. If the CPU 40 determines that it is not before the core time (NO in step S65), it is before the movement is added with a certain time in step S64, and the recommended on time and the recommended off immediately before the recommended on time is not before the core time. The time is stored in association with the selected device, and the recommended time zone is determined (step S66). The CPU 40 adds the power amount charge B of the selected device to the stored fixed charge (step S69). In addition, CPU40 memorize | stores the electric energy charge B of the selected apparatus as a fixed charge, when the fixed charge is not memorize | stored by step S69.

  When it is determined in step S63 that it is not after the core time (NO in step S63), the CPU 40 subtracts a fixed time from each of the recommended on time and the recommended off time in the recommended time zone (step S67). The CPU 40 determines whether or not the recommended off time after subtracting the predetermined time is after the core time (step S68). If the CPU 40 determines that it is after the core time (YES in step S68), it returns the process to step S58. If the CPU 40 determines that it is not after the core time (NO in step S68), it moves the process to step S66. In this case, the recommended on-time and the recommended off-time immediately before the recommended off time disappears after the core time are stored in association with the selected device, and the recommended time zone is before the movement after subtracting a certain time in step S67. To decide.

  If the CPU 40 determines in step S60 that the hourly fee is lower than the metered fee (YES in step S60), the CPU 40 stores the recommended time zone in association with the selected device, and sets the recommended time zone of the selected device. Determine (step S62). Then, the CPU 40 moves the process to step S69. If the CPU 40 determines in step S61 that the available flag is not 1 (NO in step S61), the process proceeds to step S62 without moving the recommended time zone. After step S68, the CPU 40 determines whether or not all the devices included in the selected reception month data have been selected (step S70).

  If it is determined that all the devices have not been selected (NO in step S70), the CPU 40 selects a device including the next data of the selected reception month (step S71), and returns the process to step S56. If it is determined that all devices have been selected (YES in step S70), the CPU 40 determines whether all reception months included in the read data for one year have been selected (step S72). If it is determined that all the reception months have not been selected (NO in step S72), the CPU 40 selects the next reception month included in the data for one year (step S73), and returns the process to step S55. When CPU 40 determines that all reception months have been selected (YES in step S72), CPU 40 ends the recommended time zone determination process.

  FIG. 17 is a schematic diagram illustrating an example of a charge contract notification screen. The fee contract notification screen is displayed on the display unit 44 so as to notify the contract fee which is lower than the fee contract being contracted in step S20 of the fee calculation process. On the contract notification screen, the type of the contract with which the contractor is contracting and the hourly charge contract that is cheaper than the contract with which the contract is contracted when the device is used in the recommended time zone are notified. In addition, a device whose determined recommended time zone is different from the power usage time zone is notified as a device that requires a change in the power usage time zone because the hourly fee contract is less expensive than the metered rate contract.

  In the example shown in FIG. 17, a message “current charge contract: pay-per-use lamp A” indicating that the charge contract being contracted is a pay-as-you-go charge contract is displayed. Further, in the example shown in FIG. 17, a message is displayed that the hourly fee contract is cheaper than the pay-as-you-go fee contract under contract when the power usage hours of the washing machine and the electric vehicle are moved. Yes. In addition, the total power usage in the discount time zone for one year from the most recent reception month and other time zones, and the electricity bill calculated according to the total power usage according to each rate contract are displayed.

  In addition, when the washing machine and electric vehicle are used during the discount hours, the total electricity usage in the discount hours and other times, and the electricity charges calculated according to the total electricity usage according to each charge contract are displayed. Has been. Among the electricity charges calculated according to each charge contract, the electricity charge that is the cheapest is displayed in a bold frame.

  FIG. 18 is a schematic diagram illustrating an example of a recommended time zone notification screen. The recommended time zone notification screen is displayed on the display unit 44 together with the contract notification screen so as to notify the recommended time zone in step S21 of the charge calculation process. On the recommended time zone notification screen, the power usage amount of each device in the reception month selected from the past year when the recommended time zone is determined is displayed at predetermined time intervals. When displaying the recommended time zone notification screen, it is preferable to select a reception month in which there is a device for which a recommended time zone different from the received power usage time zone is determined. When there are a plurality of selected reception months, the power usage amount of each device in each of the plurality of reception months may be displayed.

  In addition, when only the power usage amount of each device in one reception month among the selected reception months is displayed on the recommended time zone notification screen and an operation is accepted by the operation unit 45, the power of other reception months is displayed. The amount used may be displayed. A white arrow in FIG. 18 indicates a direction in which the power usage time zone is moved to determine the recommended time zone. The recommended time zone notification screen has a horizontal axis indicating time and a vertical axis indicating power usage, and the power usage of each device is displayed corresponding to each time of day. The power usage amount of each device displayed at each time indicates the total power usage amount of power used by the device at that time in one month of the selected reception month.

  In addition, the amount of power used when a device for which a recommended time zone different from the power usage time zone is determined uses power during the recommended time zone is displayed corresponding to each time of day. In the example shown in FIG. 18, the amount of power used by the devices “TV”, “refrigerator”, “air conditioner”, and “electric vehicle” during the month of August 2009, and the power usage of all devices. Are displayed corresponding to each time in 24 hours for one day from 7:00 in the morning to 7:00 on the next day. In addition, when the devices “electric vehicle” and “washing machine” use power during the recommended time, the amount of power used when the power usage time is shifted (shifted) to the night of the discount time is similarly 7 in the morning. It is displayed corresponding to each time in 24 hours for one day from time to 7:00 on the next day. By displaying the recommended time zone notification screen, the contractor can specify the equipment and the recommended time zone for which the power usage time zone should be changed in order to make the rate contract by time zone cheaper than the pay-as-you-go fee contract It becomes possible to present it in an easy-to-understand manner.

  In the first embodiment, by determining the recommended time zone according to the power usage time zone of each of the plurality of devices that use the power supplied to the contractor, the electricity fee is determined according to the usage status of each of the plurality of devices. This makes it possible to present a contract with a lower charge to the contractor. Furthermore, even when the power company has set various types of charge contracts to further level the fluctuations in the total power consumption of each contractor, the electricity charge is the lowest depending on the usage status of each of the multiple devices. It becomes possible to present the charge contract to the contractor.

  In the first embodiment, it is possible to reduce the number of devices that prompt the user of each device to change the power usage time zone by selecting the devices in descending order of power usage and determining the recommended time zone. Become. In addition, by moving the power usage time zone using the core time as the reference time, it is possible to present to the contractor a recommended time zone during which the electricity bill is reduced without significantly changing the usage status of the user of each device. .

  In the first embodiment, a case has been described in which devices are selected in descending order of power usage in the recommended time zone determination process, but the present invention is not limited to this. For example, the number of ON times or the number of OFF times may be selected in order from the devices distributed in each time slot of the day based on the monthly frequency table 433. In this case, a device in which the number of times of turning on or off is dispersed is a device that does not tend to use power in a specific time zone, and the power usage time zone without greatly changing the lifestyle of the user who uses the device. The recommended time zone can be determined by moving.

  In the first embodiment, the case where the recommended time zone is determined by sequentially selecting one device in the recommended time zone determination process has been described. However, the present invention is not limited to this, and a plurality of devices may be sequentially selected. For example, a recommended time zone may be determined by sequentially selecting a plurality of devices, such as two or three, in descending order of power usage, and moving the power usage time zone of each device for a certain time. Although the case where the charge contract notification screen and the recommended time zone notification screen are displayed on the display unit 44 of the server device 4 to notify the contractor is shown, the present invention is not limited to this. For example, an e-mail describing the notification contents on the charge contract notification screen and the recommended time zone notification screen may be transmitted to the e-mail address of the contractor stored in the contract information 430 or the like for notification.

Embodiment 2
In the second embodiment, while the first embodiment moves the power usage time zone for a fixed time in order to determine the recommended time zone, the fixed time is changed according to each device. It is. 19 and 20 are flowcharts illustrating a procedure of recommended time zone determination processing according to the second embodiment. The CPU 40 reads data for one year associated with the received customer ID from the monthly usage state table 435 (step S81). The CPU 40 sorts the read data in the reverse order of the reception month (step S82). The CPU 40 calculates a metered fee for each reception month based on the metered fee table 436 (step S83).

  The CPU 40 selects the latest reception month (step S84), and selects a plurality of devices included in the data of the selected reception month (step S85). CPU40 determines the coefficient according to each apparatus (step S86). The CPU 40 sets the on time and the off time of each device as the recommended on time and the recommended off time in each recommended time zone associated with each device (step S87). The CPU 40 calculates a power charge according to the recommended time zone and the power usage of each device as the power charge B based on the time zone charge table 437 (step S88). The CPU 40 calculates the hourly charge by adding up the power charge B and the stored fixed charge (step S89).

  The CPU 40 determines whether or not the calculated time zone fee is lower than the metered rate for the selected reception month (step S90). If the CPU 40 determines that the hourly charge is not lower than the metered charge (NO in step S90), the available flag stored in the monthly use state table 435 is set to 1 from the selected devices. Extracted devices are extracted (step S91). The CPU 40 multiplies the constant time by a coefficient set so as to increase in descending order of power consumption, and calculates a constant time according to each device (step S92).

  The CPU 40 adds a certain time to the recommended time zone of the device whose discount start time stored in the hourly fee table 437 is after the core time (step S93). The CPU 40 determines whether or not the recommended on-time in the recommended time zone obtained by adding a certain time is before the core time (step S94). If the CPU 40 determines that it is before the core time (YES in step S94), the CPU 40 subtracts a certain time from the recommended time zone of the device whose discount start time stored in the hourly fee table 437 is before the core time. (Step S95). The CPU 40 determines whether or not the recommended on time after subtracting a certain time is after the core time (step S96).

  If the CPU 40 determines that it is after the core time (YES in step S96), it returns the process to step S88. If the CPU 40 determines that it is not after the core time (NO in step S96), the CPU 40 stores the recommended time zone before adding or subtracting the fixed time in step S93 or step S95 in association with the device, and recommends it to each device. A time zone is determined (step S97). The CPU 40 adds the power amount charge B calculated according to the power usage amount of each device to the fixed charge (step S98).

  If the CPU 40 determines that the time zone fee is lower than the metered rate in step S90 (YES in step S90), the CPU 40 stores each recommended time zone in association with each device, and sets the recommended time zone for each device. Determine (step S101). Then, the CPU 40 moves the process to step S98. After step S98, the CPU 40 determines whether or not all reception months included in the read data for one year have been selected (step S99).

  If it is determined that all the reception months have not been selected (NO in step S99), the CPU 40 selects the next reception month included in the data for one year (step S100), and returns the process to step S85. When CPU 40 determines that all reception months have been selected (YES in step S99), CPU 40 ends the recommended time zone determination process.

  In the second embodiment, the case where the coefficient set so as to increase in descending order of the power usage amount in the recommended time zone determination process is multiplied by each constant time, but the present invention is not limited to this. For example, a coefficient set so that the number of on-times or the number of off-times may be increased for devices distributed in each time period of the day based on the monthly frequency table 433 may be multiplied by a certain time. In this case, a device in which the number of times of turning on or off is dispersed is a device that does not tend to use power in a specific time zone, and the power usage time zone without greatly changing the lifestyle of the user who uses the device. The recommended time zone can be determined by moving.

  The present embodiment is as described above, and the others are the same as those of the first embodiment. Therefore, the corresponding parts are denoted by the same reference numerals and processing names, and detailed description thereof is omitted.

  With respect to the embodiments including the first and second embodiments, the following additional notes are disclosed.

(Appendix 1)
Accepts the power usage of each of the plurality of devices to which power is supplied based on the fee contract, and charges an electricity fee that is lower than the electricity fee charged for the total power usage of the plurality of devices according to the fee contract In the rate contract informing device for informing other rate contracts to be performed,
A reception unit that receives a power usage amount and a power usage time zone of each of the plurality of devices;
A selection unit that selects some of the plurality of devices;
A reference time determination unit that determines a reference time associated with each of the plurality of devices based on a power usage time period of each of the plurality of devices received by the reception unit;
A moving unit that moves a power usage time period of each of the devices selected by the selection unit for a certain period of time;
Time zone determination unit that determines whether the power usage time zone of each of the devices moved by the moving unit includes the reference time determined in association with each of the some devices by the reference time determination unit When,
When it is determined that the reference time is included by the time zone determination unit, an electricity fee charged for the total power usage amount is calculated based on the power usage time zone moved by the moving unit and the other fee contract A calculation unit;
A charge determination unit that determines whether or not the electricity rate calculated by the calculation unit is lower than the electricity rate based on the rate contract;
When it is determined by the charge determination unit that the reference time is not included, the power usage time zone is further moved by the moving unit for a predetermined time when the time zone determination unit determines that the reference time is included, and the time zone determination unit A re-moving unit that selects another part of the device by the selection unit when it is determined that the time is not included, and moves the power usage time zone of each of the other part of the device by the moving unit for a predetermined time;
A charge contract notifying device comprising: a part of equipment selected by the selecting part, a power usage time zone moved by the moving part, and a notifying part for notifying the other charge contract when determined to be low by the charge determining part .

(Appendix 2)
The charge contract notification apparatus according to supplementary note 1, wherein the selection unit selects some devices in descending order of power usage received by the reception unit.

(Appendix 3)
The charge contract notification device according to supplementary note 1 or supplementary note 2, wherein the selection unit selects some of the plurality of devices that use power during a predetermined time period.

(Appendix 4)
The charge contract notification apparatus according to any one of Supplementary Note 1 to Supplementary Note 3, wherein the reference time determination unit determines, as a reference time, a substantially median value of a power usage time period of each of the plurality of devices received by the reception unit. .

(Appendix 5)
The reception unit receives the amount of power used per unit time of each of the plurality of devices,
The charge contract notification apparatus according to any one of Supplementary Note 1 to Supplementary Note 4, wherein the reference time determination unit determines a time at which the power consumption per unit time is maximum as a reference time.

(Appendix 6)
The moving unit moves based on a predetermined time set for each of the some devices, and uses less power for a device with a large amount of power usage. The rate contract notification device according to supplementary note 1, wherein a fixed time longer than the device is set.

(Appendix 7)
The moving unit moves based on a fixed time set for each of the some devices, and the power use time zones are distributed within a predetermined period. On the other hand, the charge contract notification device according to supplementary note 1, wherein a fixed time shorter than a device in which a power usage time zone is localized is set.

(Appendix 8)
A transmission device that transmits the power usage of each of a plurality of devices to which power is supplied based on a fee contract; and a reception device that receives the power usage of each of the plurality of devices transmitted by the transmission device; In a charge contract notification system for notifying other charge contracts that are charged an electricity charge lower than the electricity charge charged for the total power usage of the plurality of devices according to the charge contract,
The transmitter is
A reception unit that receives the power usage amount and the power usage time period of each of the plurality of devices from each of the plurality of devices;
A transmission unit for transmitting the power usage amount and the power usage time period of each of the plurality of devices received by the reception unit,
The receiving device is:
A receiving unit that receives a power usage amount and a power usage time zone of each of the plurality of devices transmitted by the transmission unit;
A selection unit that selects some of the plurality of devices;
A reference time determination unit that determines a reference time associated with each of the plurality of devices based on a power usage time period of each of the plurality of devices received by the reception unit;
A moving unit that moves a power usage time period of each of the devices selected by the selection unit for a certain period of time;
Time zone determination unit that determines whether the power usage time zone of each of the devices moved by the moving unit includes the reference time determined in association with each of the some devices by the reference time determination unit When,
When it is determined that the reference time is included by the time zone determination unit, an electricity fee charged for the total power usage amount is calculated based on the power usage time zone moved by the moving unit and the other fee contract A calculation unit;
A charge determination unit that determines whether or not the electricity rate calculated by the calculation unit is lower than the electricity rate based on the rate contract;
When it is determined that the charge determining unit determines that the time is not low and the time zone determining unit determines that the reference time is included, the power usage time zone is further moved by the moving unit for a predetermined time, and is not low by the fee determining unit. And when the time determination unit determines that the reference time is not included, the selection unit selects another part of the device, and the moving unit uses the power consumption time of each of the other part of the devices. A re-moving part that moves the belt for a certain period of time;
A charge contract notification system comprising: a part of devices selected by the selection unit, a power usage time zone moved by the moving unit, and a notification unit that notifies the other charge contracts when determined by the charge determination unit .

(Appendix 9)
The computer accepts the power usage of each of the plurality of devices to which power is supplied based on the fee contract, and the electricity is lower than the electricity fee charged for the total power usage of the plurality of devices according to the fee contract In a program that functions as a rate contract notification device that notifies other rate contracts that are charged,
The computer,
A reception unit for receiving a power usage amount and a power usage time period of each of the plurality of devices;
A selection unit for selecting some of the plurality of devices;
A reference time determination unit that determines a reference time associated with each of the plurality of devices based on a power usage time period of each of the plurality of devices received by the reception unit;
A moving unit that moves a power usage time period of each of the devices selected by the selection unit for a certain period of time;
Time zone determination unit that determines whether the power usage time zone of each of the devices moved by the moving unit includes the reference time determined in association with each of the some devices by the reference time determination unit ,
When it is determined that the reference time is included by the time zone determination unit, an electricity fee charged for the total power usage amount is calculated based on the power usage time zone moved by the moving unit and the other fee contract Calculation part,
A charge determination unit for determining whether the electricity charge calculated by the calculation unit is lower than the electricity charge based on the charge contract;
When it is determined that the charge determining unit determines that the time is not low and the time zone determining unit determines that the reference time is included, the power usage time zone is further moved by the moving unit for a certain period of time, and is not low by the fee determining unit. And when the time determination unit determines that the reference time is not included, the selection unit selects another part of the device, and the moving unit uses the power consumption time of each of the other part of the devices. A re-moving part that moves the belt for a certain period of time; and
When it is determined that the charge determination unit is low, a part of the device selected by the selection unit, a power usage time zone moved by the moving unit, and a notification unit for notifying the other fee contract,
Program to function as.

DESCRIPTION OF SYMBOLS 1 Housing 11 Television 12 Air-conditioner 13 Washing machine 14 Electric vehicle N Network network 4 Server apparatus 40 CPU
40a bus 41 ROM
42 RAM
43 HDD
430 Contract information 431 Daily usage table 432 Daily usage status table 433 Monthly usage table 434 Monthly usage table 435 Monthly usage status table 436 Per-use fee table 437 Time zone fee table 438 Seasonal fee table 44 Display section 45 Operation Part 46 receiving part 47 calendar part 48 recording medium reading part 480 recording medium 481 program

Claims (8)

Accepts the power usage of each of the plurality of devices to which power is supplied based on the fee contract, and charges an electricity fee that is lower than the electricity fee charged for the total power usage of the plurality of devices according to the fee contract In the rate contract informing device for informing other rate contracts to be performed,
A reception unit that receives a power usage amount and a power usage time zone of each of the plurality of devices;
A selection unit that selects some of the plurality of devices;
A reference time determination unit that determines a reference time associated with each of the plurality of devices based on a power usage time period of each of the plurality of devices received by the reception unit;
A moving unit that moves a power usage time period of each of the devices selected by the selection unit for a certain period of time;
Time zone determination unit that determines whether the power usage time zone of each of the devices moved by the moving unit includes the reference time determined in association with each of the some devices by the reference time determination unit When,
When it is determined that the reference time is included by the time zone determination unit, an electricity fee charged for the total power usage amount is calculated based on the power usage time zone moved by the moving unit and the other fee contract A calculation unit;
A charge determination unit that determines whether or not the electricity rate calculated by the calculation unit is lower than the electricity rate based on the rate contract;
When it is determined by the charge determination unit that the reference time is not included, the power usage time zone is further moved by the moving unit for a predetermined time when the time zone determination unit determines that the reference time is included, and the time zone determination unit A re-moving unit that selects another part of the device by the selection unit when it is determined that the time is not included, and moves the power usage time zone of each of the other part of the device by the moving unit for a predetermined time;
A charge contract notifying device comprising: a part of equipment selected by the selecting part, a power usage time zone moved by the moving part, and a notifying part for notifying the other charge contract when determined to be low by the charge determining part .   The charge contract notification device according to claim 1, wherein the selection unit selects some devices in descending order of power usage received by the reception unit.   The charge contract notification apparatus according to claim 1, wherein the selection unit selects a part of the plurality of devices that uses power during a predetermined time period.   The fee contract according to any one of claims 1 to 3, wherein the reference time determination unit determines, as a reference time, a substantially median value of a power usage time period of each of the plurality of devices received by the reception unit. Notification device. The reception unit receives the amount of power used per unit time of each of the plurality of devices,
The charge contract notification device according to any one of claims 1 to 4, wherein the reference time determination unit determines a time at which the power consumption per unit time is maximum as a reference time.   The moving unit moves based on a predetermined time set for each of the some devices, and uses less power for a device with a large amount of power usage. The charge contract notification apparatus according to claim 1, wherein a fixed time longer than the device is set. A transmission device that transmits the power usage of each of a plurality of devices to which power is supplied based on a fee contract; and a reception device that receives the power usage of each of the plurality of devices transmitted by the transmission device; In a charge contract notification system for notifying other charge contracts that are charged an electricity charge lower than the electricity charge charged for the total power usage of the plurality of devices according to the charge contract,
The transmitter is
A reception unit that receives the power usage amount and the power usage time period of each of the plurality of devices from each of the plurality of devices;
A transmission unit for transmitting the power usage amount and the power usage time period of each of the plurality of devices received by the reception unit,
The receiving device is:
A receiving unit that receives a power usage amount and a power usage time zone of each of the plurality of devices transmitted by the transmission unit;
A selection unit that selects some of the plurality of devices;
A reference time determination unit that determines a reference time associated with each of the plurality of devices based on a power usage time period of each of the plurality of devices received by the reception unit;
A moving unit that moves a power usage time period of each of the devices selected by the selection unit for a certain period of time;
Time zone determination unit that determines whether the power usage time zone of each of the devices moved by the moving unit includes the reference time determined in association with each of the some devices by the reference time determination unit When,
When it is determined that the reference time is included by the time zone determination unit, an electricity fee charged for the total power usage amount is calculated based on the power usage time zone moved by the moving unit and the other fee contract A calculation unit;
A charge determination unit that determines whether or not the electricity rate calculated by the calculation unit is lower than the electricity rate based on the rate contract;
When it is determined that the charge determining unit determines that the time is not low and the time zone determining unit determines that the reference time is included, the power usage time zone is further moved by the moving unit for a predetermined time, and is not low by the fee determining unit. And when the time determination unit determines that the reference time is not included, the selection unit selects another part of the device, and the moving unit uses the power consumption time of each of the other part of the devices. A re-moving part that moves the belt for a certain period of time;
A charge contract notification system comprising: a part of devices selected by the selection unit, a power usage time zone moved by the moving unit, and a notification unit that notifies the other charge contracts when determined by the charge determination unit . The computer accepts the power usage of each of the plurality of devices to which power is supplied based on the fee contract, and the electricity is lower than the electricity fee charged for the total power usage of the plurality of devices according to the fee contract In a program that functions as a rate contract notification device that notifies other rate contracts that are charged,
The computer,
A reception unit for receiving a power usage amount and a power usage time period of each of the plurality of devices;
A selection unit for selecting some of the plurality of devices;
A reference time determination unit that determines a reference time associated with each of the plurality of devices based on a power usage time period of each of the plurality of devices received by the reception unit;
A moving unit that moves a power usage time period of each of the devices selected by the selection unit for a certain period of time;
Time zone determination unit that determines whether the power usage time zone of each of the devices moved by the moving unit includes the reference time determined in association with each of the some devices by the reference time determination unit ,
When it is determined that the reference time is included by the time zone determination unit, an electricity fee charged for the total power usage amount is calculated based on the power usage time zone moved by the moving unit and the other fee contract Calculation part,
A charge determination unit for determining whether the electricity charge calculated by the calculation unit is lower than the electricity charge based on the charge contract;
When it is determined that the charge determining unit determines that the time is not low and the time zone determining unit determines that the reference time is included, the power usage time zone is further moved by the moving unit for a predetermined time, and is not low by the fee determining unit. And when the time determination unit determines that the reference time is not included, the selection unit selects another part of the device, and the moving unit uses the power consumption time of each of the other part of the devices. A re-moving part that moves the belt for a certain period of time; and
A program that functions as a notification unit that notifies a part of the device selected by the selection unit, the power usage time zone moved by the moving unit, and the other rate contract when the rate determining unit determines that the price is low.

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