JP2009261159A - Power management system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a power management system that improves a cost advantage and provides information high in feasibility. <P>SOLUTION: The power management system includes measuring parts 21 to 2n for measuring each use period of electric equipment, a use history storage part 2a for storing the use period for every electric equipment, a power rate unit cost storage part 2f for storing a unit cost for power rates for every time zone different in the unit cost for power rates, a searching part 2b for searching the electric equipment used in the time zone higher in the unit cost for power rates as compared with the other time zones, a sorting part 2c for arranging the information on the searched electric equipment in the order of time difference between the use period of the electric equipment and the time zone where the unit cost for power rates is cheaper than that in the time zone where the electric equipment is used, a use plan creation part 2e for planning the use plan to move the use period of the electric equipment having a time difference shorter than that of a prescribed condition to another time zone where the unit cost for power rates is cheaper, and a notification part 2j for notifying a user of the created use plan. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a power management system.

  In recent years, interest in energy conservation is increasing from the viewpoint of protecting the global environment. In particular, the introduction of Home Energy Management System (HEMS) has been proposed as an energy-saving measure in the residential sector, and the latest HEMS measures the amount of power consumed for each electrical wiring system in the home and promotes support for detailed energy-saving measures. It is like that.

  By the way, as an energy conservation measure in the housing field of electric power companies, the use of nighttime power using all-electric contracts is being promoted. For example, when the electricity charge unit price is different for each time zone as in an all-electric contract, an energy saving effect can be expected while increasing the cost merit by shifting the power usage to a cheaper time zone.

As a proposal to recommend such a cost merit, information on the power consumption fee and the cost merit of using nighttime power is notified before the operation of the dishwasher, and the operation of the dishwasher using nighttime power is promoted. (For example, refer to Patent Document 1).
JP 2006-130057 A

  However, when considering the usage situation of household electrical appliances represented by actual dishwashers, washing machines, dryers, vacuum cleaners, etc., for example, as shown in FIG. ■) in the figure is concentrated at 10 to 17 o'clock, which is the highest time unit of electricity charge unit price, and then is second to 7-10 o'clock and 17 to 23 o'clock, which is the highest time unit of electricity charge unit price. However, it is hardly used at 23-7, which is the time zone with the lowest electricity unit price. In addition, since one family often uses these electrical devices about 2 to 4 times per day, the usage period of all the electrical devices is set to a time zone with the lowest unit price of power consumption as shown in FIG. 6 (b). Even if the information such as the power consumption fee and the cost merit in the case of moving from 23:00 to 7:00 is notified, there are some conditions that are practically impossible depending on the circumstances of the user and the type of the electric device K, which is realistic for the user. No information was provided.

  The present invention has been made in view of the above reasons, and an object thereof is to provide a power management system capable of improving cost merit and providing highly feasible information.

  The invention of claim 1 is a measuring means for measuring each usage period of one or a plurality of electrical devices in a house, a usage history storage means for storing a history of usage periods for each electrical device as a usage history, An electric energy unit price storage means for storing the electric energy charge unit price for each divided period by dividing into a plurality of divided periods having different electric charge unit prices, and among the divided periods, the electric energy charge unit price compared to other divided periods A search means for searching for an electric device used in a high divided period based on the use history, and out of the use period of each electric device searched by the search means, the electric power is higher than the divided period using the electric device. A usage plan planning means for planning a usage plan for moving a usage period of an electrical device whose time difference from a split period with a low unit price unit price is smaller than a predetermined condition to the split period with a low power unit price unit, and the planned use Characterized in that it comprises a notifying means for notifying plan to the user.

  According to the present invention, among the electric devices that are used in a time zone with a relatively high power charge unit price, the usage period of the electric device closest to the boundary time with the time zone where the power charge rate unit price is lower than the current state, By creating a highly feasible usage plan for moving to a time zone where the unit price of power consumption is low, it becomes a highly feasible advice for the user who has received this proposal, and it is easy to enjoy the cost merit for the power bill. That is, it is possible to provide a power management system capable of improving cost merit and providing highly feasible information.

  The invention of claim 2 is the usage period of the electric device according to claim 1, wherein the use period of the electric device with the time difference smaller than a predetermined condition is the use period of the electric device with the smallest time difference from the end time of the divided period with the low unit price of power consumption. The electric power charge unit price is at least one of the usage period of the electric device having the smallest time difference from the start time of the divided period.

  According to the present invention, if the time width for moving the usage time is small for the user, it becomes easier to accept the proposal. Therefore, the electric device with the smallest time difference between the usage period and the time zone in which the power charge unit price is cheap is to be shifted. By extracting as a device, the user can accept a proposal to move the usage period of the electric device to a time zone where the unit price of power consumption is low without feeling a sense of resistance.

  According to a third aspect of the present invention, in the electric device according to the first aspect, the use period of the electric device in which the time difference is smaller than a predetermined condition is an electric device in which the time difference from the end time of the divided period in which the power consumption unit price is low is within a predetermined range. It is at least any one of the use period and the use period of the electric equipment whose time difference with the start time of the division | segmentation period where the electric energy charge unit price is cheap is in a predetermined range, It is characterized by the above-mentioned.

  According to the present invention, compared to the case where the electrical device having the smallest time difference is extracted as the shift target device, more electrical devices can be set as the shift target device, and the usage plan proposed to the user has higher cost merit. It will be a thing.

  According to a fourth aspect of the present invention, in any one of the first to third aspects, the measuring unit measures the amount of power used together with the usage period of each electrical device, and the usage history storage unit includes the usage period and usage for each electrical device. A history of electric energy is stored as a usage history, and the usage planning means divides a usage period of an electric device in which the time difference is smaller than a predetermined condition and the electric energy used is a predetermined amount or more, and the electric energy charge unit price is low. It is characterized by drafting a usage plan to be moved to a period.

  Generally, even if a usage plan with a small cost merit is proposed to the user, the user may be dissatisfied. However, according to the present invention, an electric device with a large amount of power consumption is presented to the user as a device to be shifted. The cost merit is improved, and the user's motivation can be increased when accepting this proposal.

  Invention of Claim 5 memorize | stored at least any one of the conditions of the specific electric equipment which is not permitted to move a use period in any one of Claim 1 thru | or 4, and the specific electric equipment which is not permitted to move A specific electric device storage means is provided, and the specific electric device is excluded from the electric device whose usage period is moved during the divided period where the unit price of power consumption is low.

  In general, there are some electrical devices whose usage period is difficult to move depending on the circumstances of the user and the type of electrical equipment, and even if a usage plan for moving the usage period to such electrical equipment is made, Only the feasibility of the content of the proposal will be reduced, and it may lead to user distrust. However, according to the present invention, by setting the electrical device that is difficult to move the usage period to the specific electrical device, by formulating a usage plan for moving the usage period only for electrical devices other than the specific electrical device, It becomes a usage plan that takes into account the user's circumstances and electrical equipment, and the feasibility of the proposal content to the user increases, and the user's confidence can be obtained.

  The invention of claim 6 compares the planned usage plan with the usage history after planning in claim 5, and when a certain time has elapsed since the planning, the usage period of the electrical equipment in which the time difference is smaller than a predetermined condition However, when the electric energy charge unit price is not moved to a divided period, a shift detection unit that stores the electric device in the specific electric device storage unit as the specific electric device is provided.

  According to the present invention, it is possible to set a specific electrical device based on a user's response to a planned usage plan and make a proposal in accordance with the actual situation of the user.

  The invention of claim 7 is the invention according to claim 5, wherein the measuring means measures the amount of power used together with the usage period of each electrical device, and the usage history storage means is a history of the usage period and power consumption for each electrical device. Is stored as a usage history, and the reference power storage means that stores the reference value of the used electric energy of the electric device is compared with the reference value of the used electric energy and the used electric energy of the electric device. Energy consumption level determination means for assigning a higher energy saving level as the reference value is smaller than the reference value, and the usage planning means is a period of use of the electrical equipment in which the time difference is smaller than a predetermined condition if the energy saving level is equal to or higher than a predetermined level. At the same time, the usage period of the specific electrical device is also designed to make a usage plan for moving to the divided period in which the unit price of power consumption is low.

  According to the present invention, for a user with a high energy saving level, more electric devices can be set as shift target devices, and the use plan proposed to such a user has a higher cost merit.

  The invention according to claim 8 is the invention according to any one of claims 1 to 7, wherein the measuring means measures the amount of power used together with the usage period of each electrical device, and the usage history storage means is used for the usage period and usage for each electrical device. The electric energy history is stored as a usage history, the reference electric energy storage means for storing the electric energy consumption reference value is compared with the electric energy consumption electric energy reference value and the electric energy reference value. Energy consumption level determination means for assigning a higher energy saving level as the amount of power used is lower than the reference value, and the use plan planning means sets the predetermined condition to the predetermined condition if the energy saving level is equal to or higher than the predetermined level. The electrical equipment with a smaller time difference is changed in the increasing direction.

  According to the present invention, for a user with a high energy saving level, more electric devices can be set as shift target devices, and the use plan proposed to such a user has a higher cost merit.

  A ninth aspect of the present invention provides the method according to any one of the first to eighth aspects, wherein the measuring unit measures the amount of power used together with the usage period of each electric device, and the usage history storage unit includes the usage period and usage for each electric device. The energy consumption history is stored as a usage history, and the energy charge calculation means for calculating the energy charge by calculating the product of the power consumption and the electricity charge unit price. The electricity charge calculated by the electricity charge calculation means based on the charge unit price, the electricity charge calculated by the electricity charge calculation means based on the use plan and the electricity charge unit price created by the use plan planning means, and Plan effect calculation means for calculating the difference between the power charges, wherein the notification means notifies the user of the difference in the electric energy charge.

  According to this invention, the user's motivation can be increased in accepting the proposal by presenting the cost merit information based on the usage plan to the user.

  According to a tenth aspect of the present invention, in any one of the first to ninth aspects, the predetermined period is one day, the use history storage unit stores a measurement result for each day of the week, and the search unit performs the search process for each day of the week. And the usage plan planning means formulates the usage plan every day of the week.

  According to the present invention, since the usage plan for each day of the week is presented to the user, it is possible to make a proposal in accordance with the actual condition of the user. It becomes easier to enjoy the benefits.

  The invention of claim 11 is that in any one of claims 1 to 10, the current consumption of the electrical device is other than the divided period of the destination proposed by the use plan for the electrical device whose time difference is smaller than a predetermined condition. A notification means is provided for notifying a user when a predetermined current value is exceeded.

  According to the present invention, the user is more conscious of executing the proposed usage plan, and the achievement rate of the usage plan can be improved.

  As described above, the present invention has an effect that it is possible to provide a power management system capable of improving cost merit and providing highly feasible information.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
The power management system of this embodiment is installed in an all-electric type detached house H1 that provides all the heat sources in the house, such as hot water supply, kitchen, and air conditioning, with electricity, and the electricity rate is also contracted with an all-electric discount. One day is divided into a plurality of time zones T1, T2, and T3, and the time zone T1 [10 to 17:00] with the highest power charge unit price is set, and the second time zone T2 [7 to 10 o'clock and 17 to 23 o'clock], the time zone T3 [23 to 7 o'clock] is the cheapest.

  FIG. 5 shows a schematic configuration of the above-described detached house H1, an IH heater K1 installed in the kitchen, a heat pump water heater installed outside the house to collect atmospheric heat in a natural refrigerant and boil the hot water with the heat. K2 and electric air conditioner K3 are all electrified. Household appliances include dishwasher K4 and rice cooker K5 installed in the kitchen, washing machine K6 installed in the washroom, and cleaning to clean each room. Machine K7, lighting fixture K8 installed in each room, television device K9, etc., depending on the form of electrical equipment K (hereinafter referred to as electrical equipment K if the type of electrical equipment does not matter) Some are directly supplied with power from W, and some are supplied with power from an outlet X installed on the wall surface via an outlet plug.

  Further, an information distribution board 1 is installed in the detached house H1, and as shown in FIG. 3, the electric device K includes electric lines Lp1 to Lpn for supplying commercial power and an information transmission line Li (enhanced category). 5 or category 6 LAN cable), the information distribution board 1 supplies, controls, and monitors power to each electrical device K. Terminal devices such as the display control device CV and personal computer PC connected to the information distribution board 1 via the LAN cable Li have a web browser function, and the information distribution board 1 and the terminal device are used for general-purpose communication. A home network using protocols (TCP / IP, UDP, HTTP, etc.) is configured. This in-home network is a local area network (LAN) compliant with the 100BASE-TX (IEEE 802.3u) standard, and in the information distribution board 1, an integrated device TM, which will be described later, corresponds to a layer 2 switch or a layer 3 switch. Terminal devices such as a display control device CV and a personal computer PC corresponding to a network terminal are connected by star wiring. Further, the integrated device TM has an Internet connection function corresponding to the type of line for connecting to the Internet (telephone line, CATV line, optical fiber line, etc.), and the home network is connected to the Internet as an external network. The The display control device CV may be a dedicated control panel, a net TV having a web browser function, or the like.

  A center device (center server) SV installed at a remote place away from the house is connected to the home network through the Internet. As will be described later, a laptop personal computer, a mobile phone, a PDA that can be connected to the Internet. By performing data communication via the Internet between the portable terminal device PT having a web browser function such as (Personal Digital Assistance) and the center device SV, for example, from the outside using the portable terminal PT Control and monitoring of electrical equipment can be performed. The center device SV is composed of a general-purpose computer device having a network function, and a message addressed to the information distribution board 1 transmitted from the portable terminal PT through the Internet or a terminal device that does not belong to the home network from the information distribution board 1 It has a function of relaying a message transmitted to. However, since the portable terminal PT and the center device SV having the Internet connection function as described above are well known in the art, the detailed illustration and description thereof are omitted.

  As shown in FIG. 3, the information distribution board 1 includes a main breaker Bs that receives commercial power supplied to the house from the outside on the primary side, and a plurality of electric lines that are inserted from the secondary side of the main breaker Bs. Branch breakers B1 to Bn, an energy management unit 2, an integrated device TM, and an electric device controller C1. And each electric circuit Lp1-Lpn branched via branch breaker B1-Bn is derived | led-out outside the information distribution board 1, is connected to each electric equipment K1-Kn, and supplies operation power. One electric device K is connected to one branch breaker B.

  Next, the integrated device TM in FIG. 3 is connected to the energy management unit 2 in the panel, the electric device controller C1, the display control device CV outside the panel, and the personal computer PC via the LAN cable Li, and the center device through the Internet. Connected to SV, portable terminal PT, or other terminal device, has packet processing function, path switching function, network security function, UPnP (Universal Plug and Play) control point function, etc. Controls data exchange on the network.

  In addition, the electric device controller C1 in FIG. 3 has an interface function between the integrated device TM and the electric device K that conforms to the unified standard of the Japan Electrical Manufacturers' Association (JEMA), and requests control from the terminal device via the integrated device TM. When the message is received, each electric device K is individually controlled via the control cable Lj to switch between operation (lighting in the case of lighting fixtures) and stop (lighting off in the case of lighting fixtures), and via the integrated device TM. When the monitoring request message is received from the terminal device, the operating state of each electric device K (operation <lighting> or stop <lighting off>) is individually acquired via the control cable Lj, and the control request and the monitoring request A function (control monitoring device) that transmits a response (operating state of each electrical device K) to the terminal device that is the transmission source of the request message via the integrated device TM Ability). The electric device controller C1 stores device name information of the electric device K under its control in advance, and web content (web page) for displaying the name and operating state of the electric device K with characters and symbols. And a function (web server function) for providing (distributing) the web content to the terminal device in response to a request from the terminal device.

  Next, the energy management unit 2 in FIG. 3 collects the power consumption supplied via the branch breakers B1 to Bn, draws up a use plan for the electric device K, and sends the use plan to the display control device CV. The transmission function is shown in FIG. 1, and its operation flowchart is shown in FIG.

  First, the measuring units 21 to 2n are provided corresponding to the branch breakers B1 to Bn, respectively, and collect the amounts of electric power supplied to the electrical devices K1 to Kn via the branch breakers B1 to Bn (steps). S1), each usage period (time stamp) of each of the electrical devices K1 to Kn, and the amount of power used are measured, and each history of the devices is assigned to the electrical devices K1 to Kn in advance (and / or a device name). And stored in the use history storage unit 2a (step S2). In other words, the usage history storage unit 2a stores the usage period and usage history of the electric devices K1 to Kn as the usage history.

  Next, the power consumption analysis unit 2b reads data in the specific electrical device storage unit 2g (step S3). The specific electrical device storage unit 2g has a device number of the electrical device K whose movement period is difficult to move (or a condition corresponding to the electric device K whose movement period is difficult to move depending on the circumstances of the user and the type of the electric device K. The electrical device K that is not permitted to move the current usage period to another time zone is referred to as a specific electrical device. The specific electrical device stored in the specific electrical device storage unit 2g is set in advance at the time of shipment from the factory according to the type of the electrical device K, or is set by the user according to the circumstances of the user.

  The power consumption analysis unit 2b includes a search unit 2c and a sort unit 2d. First, the search unit 2c reads data in the power unit price storage unit 2f. The electric power unit price storage unit 2f has the electric power for each time period T1 [10 to 17:00], T2 [7 to 10 o'clock and 17 to 23 o'clock], and T3 [23 to 7 o'clock] in which the electric energy unit price differs in one day. The unit price unit price is stored. Then, the search unit 2c first has a time period T1 [10 to 17:00] in which the electric energy charge unit price is the highest as a search target time period and a time period T2 [7 to 10 o'clock and 17 to 23:00], the electric device K used in the time zone T1 [10 to 17:00], and the electric device K used in the time zone T2 [7 to 10:00 and 17:00 to 23:00] Search from the storage unit 2a. In other words, the electrical device K to which the usage period belongs is extracted from 7 to 23:00 in the search result (step S4). Note that the usage period of the electric device K used in the search is an average of the usage period in the past unit period (one week, one month, one year, or the like).

  Next, the sorting unit 2d excludes from the searched electric device K, the specific electric device whose usage period is not moved depending on the user's circumstances and the type of the electric device K, and the search result and the use history storage excluding the specific electric device. Based on the usage history in the unit 2a, the time difference between the current usage period of each electrical device K and the time zone T3 where the electric energy charge unit price is the lowest is calculated, and each information of the electrical device K excluding the specific electrical device (Device number, device name, time difference, etc.) are arranged in order of the calculated time difference (ascending order or descending order) (time series sorting). This time difference is the time difference between the start time of the usage period of each electric device K and the end time [7 o'clock] of the time zone T3 where the unit price of electric power is the lowest, and the end time and power of the usage period of each electric device K. There are two types, the time difference from the start time [23:00] of the time zone T3 with the lowest unit price, and two types of time-series sort data are also generated. In the present embodiment, there are a dishwasher K4, a washing machine K6, a rice cooker K5, and a vacuum cleaner K7 as the electric equipment K (other than the specific electric equipment) to which the usage period belongs at 7:00 to 23:00, as shown in FIG. Indicates the period of use (■ in the figure). The vacuum cleaner K7 has a predetermined outlet X to which the outlet plug is connected, and the above processing is performed based on the measurement result of the measuring unit 27 corresponding to the branch breaker B7 that supplies power via the outlet X. Done.

  Then, the usage planning unit 2e extracts the electrical device K having the smallest time difference as a shift target device from each of the two types of time-series sort data by the sort unit 2d (step S5). In FIG. 4A, the smallest time difference from the end time [7 o'clock] of the time zone T3 is the usage period W1 at the earliest time of the rice cooker K5, and the start time of the time zone T3 [23:00] ] Is the use period W2, W3 at the latest time of the dishwasher K4 and the washing machine K6. Therefore, the dishwasher K4, the rice cooker K5, and the washing machine K6 are extracted as shift target devices (step S5).

  Next, the usage plan planning unit 2e formulates a usage plan for moving the usage periods of the dishwasher K4, rice cooker K5, and washing machine K6 extracted as the shift target devices to the time zone T3 where the electricity unit price is the lowest. To do. Specifically, as shown in FIG. 4 (b), the use period W1 ′ of the rice cooker K5 that has been moved into the time zone T3 by advancing the use period W1 is used, and the use period W2 of the dishwasher K4 and the washing machine. , W3 is delayed and moved to the time period T3 so as to make a plan for use periods W2 ′ and W3 ′ (step S6).

  Further, the use planning unit 2e determines whether or not a shift target device has been searched in all search target time zones (step S7), and if there is a search target time zone in which no shift target device is searched, step S4. Return to. At this stage, the process returns to step S4 again, and the search unit 2c sets only the time zone T1 [10 to 17:00] with the highest power charge unit price as the second search target time zone, and sets the time zone T1 [10 to 10]. 17:00] is searched from the use history storage unit 2a. That is, the electrical device K to which the usage period belongs is extracted from 10 to 17:00 in the search result (step S4).

  Next, the sorting unit 2d excludes the specific electrical device from the searched electrical device K, and based on the search result excluding the specific electrical device and the usage history in the usage history storage unit 2a, Calculate the time difference between the current usage period and the time zone T2 with the second highest power unit price, and exclude each specific electrical device (information on the device number, device name, time difference, etc.) Are arranged in the order of the calculated time difference (ascending order or descending order) (time-series sorting). This time difference is the time difference between the start time of the usage period of each electric device K and the end time [10 o'clock] of the time zone T2 in which the electric power charge unit price is the second highest, and the end time of the usage period of each electric device K And the time difference from the start time [17 o'clock] of the time zone T2 in which the electric power charge unit price is the second highest, and two types of time-series sort data are also generated. In this embodiment, there are a dishwasher K4, a washing machine K6, a rice cooker K5, and a vacuum cleaner K7 as the electric equipment K (other than the specific electric equipment) to which the period of use belongs at 10 to 17:00, and the time shown in FIG. The period of use (■ in the figure) is shown in the band T1.

  Then, the usage planning unit 2e extracts the electrical device K having the smallest time difference as a shift target device from each of the two types of time-series sort data by the sort unit 2d (step S5). In FIG. 4 (b), the time difference from the end time [10 o'clock] of the time zone T2 is the smallest in the usage periods W4, W5 at the earliest times of the dishwasher K4, the washing machine K6, and the cleaner K7. It is W6, and the time difference with the start time [17:00] of the time zone T2 is the smallest during the use period W7 at the latest time of the rice cooker K5. Therefore, the dishwasher K4, the rice cooker K5, the washing machine K6, and the cleaner K7 are extracted as shift target devices (step S5).

  Next, the usage planning unit 2e sets the usage period of the dishwasher K4, the rice cooker K5, the washing machine K6, and the vacuum cleaner K7 extracted as the devices to be shifted to the time zone T2 in which the electric power charge unit price is the second highest. Develop a usage plan to be moved. Specifically, as shown in FIG. 4 (c), the use period W4 ′ in which the use periods W4, W5, and W6 of the dishwasher K4, the washing machine K6, and the cleaner K7 are moved earlier within the time zone T2. , W5 ′, W6 ′, and a plan to make the use period W7 ′ of the rice cooker K5 moved within the time zone T2 by delaying the use period W7 (step S6).

  Further, the use plan planning unit 2e determines whether or not the shift target device has been searched in all the search target time zones (step S7).

  Since the shift target devices were searched in all the search target time zones this time, the power amount charge calculation unit 2h next, the power amount charge in the current usage form (FIG. 4 (a)), and the planned plan The electric energy charge in the usage mode (FIG. 4C) is calculated with reference to the electric energy charge unit price for each time zone T1, T2, T3 in the electric energy unit price storage unit 2f. Specifically, the product of the amount of power used and the unit price of power consumption for all the electrical devices K1 to Kn is calculated for each time zone T1, T2, T3, and the products for each time zone T1, T2, T3 are added. The thing is derived as the electricity charge. Next, the plan effect calculation unit 2i calculates the difference between the electricity charge in the current usage pattern (FIG. 4 (a)) and the power charge in the planned use pattern (FIG. 4 (c)). Then, cost merit information based on the planned plan is generated (step S8).

  Then, the notification unit 2j transmits the usage plan (see FIG. 4C) created in step S6 and the cost merit information generated in step S8 from the LAN cable Li to the display control device CV via the integrated device TM. To do. In the display control device CV, a usage plan (see FIG. 4C) and cost merit information based on this usage plan are displayed on the screen, and according to the usage plan, the usage period of the device to be shifted is further changed to the unit price of power consumption. The user is suggested to move to a cheaper time zone (step S9).

  Therefore, among the electric devices K that are used in a time zone with a relatively high power charge unit price, the usage period of the electric device K that is closest to the boundary time with the time zone in which the power charge price unit price is lower than the current time By creating a highly feasible usage plan for moving to a time zone where the unit price is low, it becomes a highly feasible advice for the user who has received this proposal, and it is easy to enjoy the cost merit for the power rate.

  In addition, if the time width for moving the usage time is small for the user, it becomes easier to accept the proposal. Therefore, as described above, the electric device K having the smallest time difference between the usage period and the time zone in which the power charge unit price is low is shifted. By extracting as the target device, the user can accept a proposal to move the usage period of the electric device K to a time zone in which the unit price of power consumption is low without feeling a sense of resistance.

  In addition, by presenting the cost merit information based on the usage plan to the user, the user's motivation can be increased in accepting this proposal.

  Furthermore, in general, there is an electric device K that is difficult to move the usage period depending on the circumstances of the user and the type of the electric device K, and a usage plan for moving the usage period to such an electric device K is drawn up. However, the feasibility of the contents of the proposal to the user is lowered, and the user may be distrusted. Therefore, by setting the electrical device K that is difficult to move the usage period as the specific electrical device, and creating a usage plan that moves the usage period only for the electrical device K other than the specific electrical device, The usage plan takes into account the electric device K, the feasibility of the proposal content to the user is enhanced, and the user's confidence can be obtained.

  Next, the reference power storage unit 2k stores a reference value of the total power consumption per unit period (one day, one week, one month, one year, etc.) corresponding to each region, The user operates the area information setting unit 21 to select and set the area to which the detached house H1 belongs. Next, the energy saving level determination unit 2m determines the total usage per unit period of all the used electric devices K1 to Kn from the history of the used electric energy of each of the electric devices K1 to Kn stored in the use history storage unit 2a in Step S2. The electric energy is calculated and compared with the reference value of the total electric energy used in the area to which the detached house H1 belongs (step S10), the energy saving level in the detached house H1 is determined, and stored in the energy saving level storage unit 2n ( Step S11). The smaller the actual total power consumption relative to the total power consumption reference value, the higher the energy saving level and the higher the user's awareness of energy conservation. It is considered that the greater the amount of power, the lower the energy saving level and the lower the user's awareness of energy saving.

  Then, the data in the specific electrical device storage unit 2g is updated according to the determination result of the energy saving level, and when the energy saving level is low, it is determined that further improvement is necessary to reduce the total power consumption, Re-set the number of specific electrical equipment to a smaller number, increase the number of electrical equipment K that can be moved to a time zone where the unit price of electricity is cheaper than the current amount, and on the other hand, if the energy saving level is high, a certain degree of relaxation is allowed Then, the number of specific electric devices is reset to a large number, and the number of electric devices K that can be moved to a time zone where the electric power charge unit price is cheaper than the current state is reduced (step S12).

  Therefore, by updating the number of specific electrical devices according to the energy saving level (user's awareness of energy saving), it can be expected that the energy saving level of each household will be changed to substantially the same level. Can be attached.

  In addition, the power consumption analysis unit 2b has a clock function for measuring the day of the week and time, and refers to the data in the power unit price storage unit 2f, so that the time periods T1, T2, T3 having different power unit prices are different. A different LED lighting signal is generated for each time, an LED lighting signal in a time zone corresponding to the current time is transmitted from the notification unit 2j to the display control device CV via the integrated device TM, and further, in the time zones T1, T2, T3 When the switching time comes, a switching notification signal for the electric power charge unit price is transmitted from the notification unit 2j to the display control device CV via the integrated device TM. In the display control device CV, the lighting color or blinking pattern of the LED changes depending on the current time zones T1, T2, and T3, and when the switching time of the time zones T1, T2, and T3 is reached, a voice notification is given from the speaker and a monitor screen is displayed. It is displayed that the power charge unit price has been switched (step S13).

  Therefore, the current power unit price can be visually and audibly conscious to the user, and an appropriate time zone in which the electric device K is used can be notified. It can be executed easily and the burden on the user can be reduced.

  Furthermore, the power consumption analysis unit 2b monitors the load current supplied to the electrical devices K1 to Kn via the branch breakers B1 to Bn based on the measurement results of the measurement units 21 to 2n, and proposes the use proposed to the user When the load current of the shift target device in the plan exceeds a threshold in a time zone different from the destination time zone, a notification signal is generated to notify that the shift target device has operated in a time zone different from the use plan. Then, the information is transmitted from the notification unit 2j to the display control device CV via the integrated device TM. The display control device CV that has received the notification signal outputs a notification sound from the speaker and displays information (device number, device name, etc.) of the shift target device that has received the warning on the monitor screen.

  Accordingly, the user is more conscious of executing the proposed usage plan, and the achievement rate of the usage plan can be improved.

  And, as described above, when the energy management unit 2 develops a usage plan for moving the usage period of the shift target device to a time zone where the electric energy charge unit price is cheaper than the current time, when a predetermined time has elapsed, The shift detection unit 2p compares each usage period of the electrical device K stored in the usage history storage unit 2a with the previous usage plan, and the usage period of the shift target device proposed in the usage plan is still power. If it is not moved to a time zone where the unit price is cheap, this shift target device is set as a specific electrical device, stored in the specific electrical device storage unit 2g, and not set as a shift target device from the next time. Therefore, it is possible to set a specific electrical device based on the user's response to the planned usage plan and make a proposal in accordance with the user's actual condition.

  In the present embodiment, the sorting unit 2d determines the time difference between the start time of the usage period of each electric device K and the end time of the time zone in which the electric energy charge unit price is lower than the current state, and the end time of the use period of each electric device K. And two types of time-series sort data based on the time difference between the current time and the start time of the time zone where the electricity charge unit price is cheaper than the current one, but only one of the time-series sort data is generated and used The planning unit 2e may extract a shift target device based on this one type of time series sort data.

(Embodiment 2)
In the power management system of the present embodiment, the process in which the use planning unit 2e extracts the shift target device is different from that in the first embodiment (particularly, the process in step S5 in FIG. 2 is different). This will be described below.

  First, the sorting unit 2d calculates the time difference between the current usage period of each electrical device K and the time zone where the unit price of electric power charges is cheaper than the current time to generate time-series sort data, and the usage planning unit 2e From the time series sort data, the electric device K whose time difference is within a predetermined range is extracted as a shift target device. Therefore, compared with the case where the electric device K having the smallest time difference is extracted as the shift target device, more electric devices K can be set as the shift target device, and the usage plan proposed to the user has higher cost merit. It becomes.

  Other configurations are the same as those in the first embodiment, and a description thereof will be omitted.

(Embodiment 3)
The power management system according to the present embodiment is different from the first and second embodiments in that the use planning unit 2e extracts the shift target device (particularly, the process in step S5 in FIG. 2 is different). Will be described below.

  First, the sorting unit 2d calculates the time difference between the current usage period of each electrical device K and the time zone where the unit price of electric power charges is cheaper than the current time to generate time-series sort data, and the usage planning unit 2e From the time-series sort data, the electric device K (see Embodiment 1) with the smallest time difference or the electric device K with the time difference within a predetermined range (see Embodiment 2) is selected. Furthermore, based on the history of the amount of power used by each of the electrical devices K1 to Kn stored in the usage history storage unit 2a, the unit period (1 day, 1 week, or 1 month) of each electrical device K selected based on the above time difference. Alternatively, the amount of electric power used per year) is derived, and only electric devices whose electric power consumption is a predetermined amount or more are extracted as devices to be shifted.

  In general, even if a usage plan with a small cost merit is proposed to the user, the user may be dissatisfied. However, in this embodiment, the electric device K having a large amount of power consumption is presented to the user as a shift target device. The cost merit is improved, and the user's motivation can be increased when accepting this proposal.

  Other configurations are the same as those in the first or second embodiment, and a description thereof will be omitted.

(Embodiment 4)
The power management system of the present embodiment is different from the first to third embodiments in the setting process of the specific electric device stored in the specific electric device storage unit 2g and the process in which the use plan planning unit 2e extracts the shift target device. Yes, this difference will be described below.

  First, in the present embodiment, the specific electric device stored in the specific electric device storage unit 2g is set in advance at the time of factory shipment according to the type of the electric device K, or set by the user according to the circumstances of the user. The process of step S12 of 2 is not performed.

  In the reference power storage unit 2k, a reference value of the total power consumption per unit period (one day, one week, one month, one year, etc.) is stored corresponding to each region. However, the area information setting unit 21 is operated to select and set the area to which the detached house H1 belongs. Next, the energy saving level determination unit 2m determines the total usage per unit period of all the used electric devices K1 to Kn from the history of the used electric energy of each of the electric devices K1 to Kn stored in the use history storage unit 2a in Step S2. The power amount is calculated, compared with the reference value of the total power consumption in the area to which the detached house H1 belongs, the energy saving level in the detached house H1 is determined, and stored in the energy saving level storage unit 2n. The smaller the actual total power consumption relative to the total power consumption reference value, the higher the energy saving level and the higher the user's awareness of energy conservation. It is considered that the greater the amount of power, the lower the energy saving level and the lower the user's awareness of energy saving.

  If the energy saving level is lower than the predetermined level, the sorting unit 2d excludes the specific electrical device from the search result (the electrical device K used in the search target time zone) by the search unit 2c, and excludes the specific electrical device. Based on the search result and the usage history in the usage history storage unit 2a, the time difference between the current usage period of each electrical device K and the time zone where the unit price of power consumption is cheaper than the current status is calculated, and the specific electrical device is excluded. Each piece of information (device number, device name, time difference, etc.) of the electrical device K is arranged in the order of the calculated time difference (ascending order or descending order) (time series sorting).

  On the other hand, if the energy saving level is equal to or higher than the predetermined level, the sorting unit 2d selects the specific electric device without excluding the specific electric device from the search result of the search unit 2c (electric device K used in the search target time zone). Based on the search results that are not excluded and the usage history in the usage history storage unit 2a, the time difference between the current usage period of each electrical device K and the time zone where the unit price of power consumption is cheaper than the current time is calculated. Each piece of information (device number, device name, time difference, etc.) of the electric device K that is not excluded is arranged in the order of the calculated time difference (ascending order or descending order) (time series sorting). The time difference is the difference between the start time of the usage period of each electric device K and the end time of the time zone in which the electric power charge unit price is cheap, the end time of the use period of each electric device K, and the electric power charge unit price. There are two types of time difference from the start time of the cheap time zone, and two types of time-series sort data are also generated.

  Then, the usage planning unit 2e extracts the shift target device from the time series data created by the sorting unit 2c determining whether or not the specific electrical device can be excluded based on the energy saving level as described above.

  Therefore, for a user with a high energy saving level, more electric devices K can be set as devices to be shifted, and the usage plan proposed to such a user has a higher cost merit.

  Other configurations are the same as those in any one of the first to third embodiments, and a description thereof will be omitted.

(Embodiment 5)
The power management system of the present embodiment is different from that of the second embodiment in that the usage planning unit 2e extracts a shift target device, and this difference will be described below.

  First, the reference power amount storage unit 2k stores a reference value of the total power consumption per unit period (one day, one week, one month, one year, etc.) corresponding to each region, and is stored in the user. However, the area information setting unit 21 is operated to select and set the area to which the detached house H1 belongs. Next, the energy saving level determination unit 2m calculates the total power consumption per unit period of all the used electric devices K1 to Kn from the history of the used electric energy of the electric devices K1 to Kn stored in the use history storage unit 2a. It calculates and compares with the reference value of the total electric power consumption in the area where the detached house H1 belongs, determines the energy saving level in the detached house H1, and stores it in the energy saving level storage unit 2n. The smaller the actual total power consumption relative to the total power consumption reference value, the higher the energy saving level and the higher the user's awareness of energy conservation. It is considered that the greater the amount of power, the lower the energy saving level and the lower the user's awareness of energy saving.

  Then, if the energy saving level is less than the predetermined level, the usage planning unit 2e determines the current usage period of each electrical device K and the time zone in which the electricity charge unit price is lower than the current level from the time-series sort data by the sorting unit 2d. The electric device K whose time difference is within a predetermined range is extracted as a shift target device.

  On the other hand, if the energy saving level is equal to or higher than the predetermined level, the usage planning unit 2e determines the current usage period of each electrical device K in the extraction process of the shift target device, and the time zone in which the unit price of power consumption is lower than the current level. The predetermined range, which is the time difference comparison condition, is expanded to increase the number of shift target devices. Therefore, for a user with a high energy saving level, more electric devices K can be set as devices to be shifted, and the usage plan proposed to such a user has a higher cost merit.

  In addition, the structure which eases the comparison conditions of the time difference between the use period of each electric equipment K and the time slot | zone with a cheap electric energy charge unit price like this embodiment is applicable also to Embodiment 1, 3, 4 and is similar to the above. The effect of can be obtained.

(Embodiment 6)
Generally, a user's life pattern is different on weekdays and holidays, and a usage pattern of the electric device K is also different on weekdays and holidays. Therefore, the power management system of the present embodiment creates a usage plan for each day of the week, and this point is different from that of the first embodiment. This difference will be described below.

  First, the search unit 2c searches the electric device K used in the search target time zone for each day of the week, and the sorting unit 2d excludes the specific electric device from the search result for each day of the week, and excludes the specific electric device. Based on the search result for each day and the usage history for each day of the week in the usage history storage unit 2a, the time difference between the current usage period of each electrical device K and the time zone where the electric power unit price is cheaper than the current time The information (device number, device name, time difference, etc.) of the electrical device K calculated and excluding the specific electrical device is arranged for each day of the week in ascending order (ascending or descending order) of the calculated time difference (time series sorting).

  Then, the usage planning unit 2e extracts the electrical device K having the smallest time difference as the shift target device for each day of the week from the time-series sort data for each day of the week by the sorting unit 2d. Further, the usage plan planning unit 2e formulates a usage plan for each day of the week to move the usage period of the electrical device K extracted as the shift target device to a time zone where the unit price of the electric energy charge is lower than the current status.

  Next, the electric energy charge calculation unit 2h displays the electric energy charge in the current usage pattern and the electric energy charge in the planned usage pattern in the time zones T1, T2, T3 in the electric energy unit price storage unit 2f. It is calculated for each day of the week by referring to the unit price of power consumption for each day. Specifically, the product of the amount of power used and the unit price of power consumption for all electrical devices K1 to Kn is calculated for each time zone T1, T2, T3, and the product for each time zone T1, T2, T3 is added. The thing is derived as the electricity charge. Next, the plan effect calculation unit 2i calculates, for each day of the week, the difference between the power charge in the current usage pattern and the power charge in the planned usage pattern, and displays the cost merit information by the planned plan on the day of the week. Generate every time.

  Then, the notification unit 2j transmits the planned usage plan for each day of the week and the generated cost advantage information for each day of the week to the display control device CV from the LAN cable Li via the integrated device TM. In the display control device CV, the usage plan for each day of the week and the cost merit information for each day of the week based on this usage plan are displayed on the screen, and the usage period of the electric device K is more reduced to the user according to the usage plan for each day of the week. We suggest moving to a time zone where the unit price is cheap.

  Therefore, since the usage plan for each day of the week and cost merit information are presented to the user, it is possible to make a proposal in accordance with the actual situation of the user. It becomes easier to enjoy the benefits.

  In addition, the structure which shows a user the use plan and cost merit information for every day like this embodiment is applicable also to Embodiment 2 thru | or 5, and the same effect as the above can be acquired.

  Moreover, in the said Embodiment 1 thru | or 6, since the dishwasher and the washing machine are used after the washing | cleaning thing is stocked to some extent, it has the characteristic used after a meal or undressing of clothes, and shortens a use period. If this is difficult, a usage plan may be proposed in which the period of use of the dishwasher or washing machine is moved only in the direction of slowing down. Use of air conditioners, water heaters, rice cookers, etc. is effective if they are operated once.

  It should be noted that one day is the time zone T1 [10 to 17:00] with the highest electric energy charge unit price, the second time zone T2 [7 to 10:00 and 17:00 to 23:00] with the second highest electric energy charge unit price, The structure of dividing into the three time zones of the time zone T3 [23 to 7 o'clock] where the unit price is cheap is an example, and the division of the time zone and the setting of the electric energy unit price may be other configurations. May divide one week, one month, or one year into a plurality of divided periods with different unit prices.

  Further, in the first to sixth embodiments, the usage plan planning unit 2e moves the usage period of the electrical device K extracted as the shift target device to a time zone in which the electric energy charge unit price is lower than the current status, for example, 4 (c), but simply generating information on the name of the device to be shifted and the time zone to move the usage period is also included in the planning of the usage plan. The information may be notified to the user from the notification unit 2j.

  Moreover, in the said Embodiment 1 thru | or 6, the energy-saving level determination part 2m calculates the total power consumption per unit period of all the electric equipment K1-Kn, and is the total power consumption in the area where the detached house H1 belongs. Although it is compared with the reference value, the amount of power used per unit period of a predetermined electric device K is calculated and compared with the reference value of the amount of electric power used by the predetermined electric device K in the area to which the detached house H1 belongs. Thus, the energy saving level may be determined.

It is a figure which shows the structure of the energy management unit of the power management system of Embodiment 1. FIG. It is a system diagram which shows an operation | movement flowchart same as the above. It is a figure which shows the whole structure of a power management system same as the above. (A)-(c) It is a figure which shows the planning process of a use plan same as the above. It is a figure which shows the detached house which installed the system same as the above. (A) (b) It is a top view which shows the planning process of the conventional usage plan.

Explanation of symbols

2 Energy management unit B1 to Bn Branch breaker 21 to 2n Measuring unit 2a Usage history storage unit 2b Power consumption analysis unit 2c Search unit 2d Sort unit 2e Usage plan planning unit 2j Notification unit

Claims (11)

Measuring means for measuring each period of use of one or more electrical devices in the house;
Usage history storage means for storing a history of usage periods for each electrical device as usage history;
A power amount unit storage means for storing a power amount charge unit price for each divided period by dividing the predetermined period into a plurality of divided periods having different power amount charge unit prices;
Search means for searching for electric appliances used in a divided period having a higher electric energy charge unit price than other divided periods among the plurality of divided periods, based on the usage history;
Of the usage period of each electrical device searched by the search means, the usage period of the electrical device in which the time difference with the split period in which the electric energy charge unit price is lower than the split period using the electrical device is smaller than the predetermined condition, A usage plan planning means for formulating a usage plan for moving to a divided period where the unit price of electricity charge is low;
A power management system comprising: a notification unit configured to notify the user of the planned use plan.   The usage period of the electrical device in which the time difference is smaller than a predetermined condition includes the usage period of the electrical device having the smallest time difference from the end time of the split period in which the power unit price is low and the start of the split period in which the power unit price is low. The power management system according to claim 1, wherein the power management system is at least one of a usage period of an electric device having a smallest time difference from the time.   The usage period of the electrical device in which the time difference is smaller than the predetermined condition is divided into the usage period of the electrical device in which the time difference from the end time of the division period in which the power charge unit price is low is within a predetermined range, and the split in which the power charge unit price is low. The power management system according to claim 1, wherein the time difference from the start time of the period is at least one of a usage period of the electric device within a predetermined range. The measuring means measures the amount of power used together with the usage period of each electrical device, and the usage history storage means stores a usage period and a history of power usage for each electrical device as a usage history,
The usage plan drafting means formulates a usage plan for moving the usage period of the electrical equipment in which the time difference is smaller than a predetermined condition and the power consumption amount is a predetermined amount or more to a divided period where the power consumption unit price is low. The power management system according to claim 1, wherein the power management system is a power management system.   A specific electric device storage means storing at least one of a specific electric device that is not permitted to be moved and a condition of the specific electric device that is not permitted to be moved, and the electric power charge unit price is low The power management system according to any one of claims 1 to 4, wherein a specific electrical device is excluded from electrical devices whose usage period is moved during the period.   Comparing the planned usage plan with the usage history after planning, when a certain time has passed since the planning, the usage period of the electrical equipment whose time difference is smaller than the predetermined condition is changed to the divided period where the unit price of power consumption is low 6. The power management system according to claim 5, further comprising a shift detection unit that stores the electric device in the specific electric device storage unit as the specific electric device when the electric device is not moving. The measuring means measures the amount of power used together with the usage period of each electrical device, and the usage history storage means stores a usage period and a history of power usage for each electrical device as a usage history,
Compare the reference power amount storage means that stores the reference value of the electric power consumption of the electric device with the reference value of the electric power consumption and the reference value of the electric power consumption. An energy saving level determination means for assigning a high energy saving level,
If the energy saving level is equal to or higher than the predetermined level, the usage plan planning means includes a usage period of the electrical device in which the time difference is smaller than a predetermined condition, and a usage period of the specific electrical device in which the unit price of power consumption is low. The power management system according to claim 5, wherein a usage plan to be moved to is created. The measuring means measures the amount of power used together with the usage period of each electrical device, the usage history storage means stores the usage period and the history of power usage for each electrical device as a usage history,
Compare the reference power amount storage means that stores the reference value of the electric power consumption of the electric device with the reference value of the electric power consumption and the reference value of the electric power consumption. An energy saving level determination means for assigning a high energy saving level,
8. The usage planning means, if the energy saving level is equal to or higher than a predetermined level, changes the predetermined condition in a direction in which the number of electrical devices having a smaller time difference than the predetermined condition increases. Or a power management system. The measuring means measures the amount of power used together with the usage period of each electrical device, and the usage history storage means stores a usage period and a history of power usage for each electrical device as a usage history,
A power charge calculation means for calculating a power charge by calculating the product of the power consumption and the power charge unit price;
The electric energy charge calculated by the electric energy charge calculating means based on the usage history of the usage history storage means and the electric energy charge unit price, and the electric energy based on the usage plan and the electric energy charge unit price drawn up by the usage planning means A plan effect calculation means for calculating the difference from the electricity charge calculated by the charge calculation means,
The power management system according to any one of claims 1 to 8, wherein the notifying unit notifies the user of the difference in the electric energy charge.   The predetermined period is one day, the use history storage means stores measurement results for each day of the week, the search means performs the search process for each day of the week, and the use plan planning means stores the use plan for each day of the week. The power management system according to claim 1, wherein the power management system is planned.   Informing means for informing the user when the consumption current of the electric device exceeds a predetermined current value other than the divided period of the moving destination proposed by the use plan for the electric device with the time difference smaller than a predetermined condition. The power management system according to claim 1, comprising: a power management system according to claim 1.

Images