JP6425818B2 - Power control device, cost display method, and program - Google Patents

Description

  The present invention relates to a technique for appropriately visualizing and displaying the cost of consumed power.

  2. Description of the Related Art In recent years, a power generation facility and a storage facility are introduced into a home system represented by a Home Energy Management System (HEMS), and energy management control (as one example, charge and discharge control and the like) is performed. In such home systems, the amount of electricity sold and sold, the electricity bill for electricity and the like are displayed to the user for the power purchased from the commercial power source (commercial power system) and the power sold from the power generation facility. .

  As a prior art of such a home system, for example, Patent Document 1 discloses a power control device that displays a ratio of green power (power with relatively low carbon emission intensity) to non-green power, etc. in used energy. The invention is disclosed. Moreover, the invention of the management apparatus (power control system) which makes the graph of the transition condition of the storage amount of a storage battery superimpose on the graph of the transition condition of various energy variables is disclosed by patent document 2. FIG.

JP, 2012-019652, A JP 2014-021616 A

  However, in the inventions of Patent Documents 1 and 2 described above, only the amount of power consumed or generated is appropriately displayed, and no display is made from the viewpoint of cost. That is, only with the information of the power amount displayed in the inventions of Patent Documents 1 and 2, for example, charging and discharging are performed in which time zone, and as a result, it is presented to the user how much power purchase has been suppressed. I could not.

  Therefore, there is a need for a technique for appropriately visualizing and displaying the cost of consumed power.

  The present invention has been made to solve the above-mentioned problems, and provides a power control device, cost display method, and program capable of appropriately visualizing and displaying the cost of consumed power. The purpose is to

In order to achieve the above object, a power control apparatus according to the present invention is
A display control means for displaying on a display device a graph showing power costs for power including commercial power and generated power consumed by a home appliance, the breakdown of the power costs being identifiable.
Operation accepting means for accepting user's operation on the power cost of the graph displayed on the display device ;
Control means for controlling the in-home device according to the control schedule reviewed according to the operation accepted by the operation accepting means;
The display control means updates the graph in which the power cost is moved according to the received operation.

  According to the present invention, the cost of consumed power can be appropriately visualized and displayed.

BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic diagram which shows an example of the whole structure of the home system which concerns on embodiment of this invention. It is a block diagram which shows an example of a structure of a power control apparatus. It is a schematic diagram which shows an example of a power consumption screen. It is a schematic diagram which shows an example of a power consumption cost screen. It is a schematic diagram which shows an example of a power consumption cost prediction screen. It is a schematic diagram which shows an example of an electrical storage residual amount screen. It is a block diagram which shows an example of a structure of a terminal device. It is a schematic diagram for demonstrating the mode of operation with respect to a power consumption cost prediction screen. It is a schematic diagram for demonstrating the mode of operation with respect to a power consumption cost prediction screen. It is a schematic diagram which shows an example of the updated power consumption cost prediction screen. It is a flow chart which shows an example of screen generation processing concerning an embodiment of the present invention. It is a schematic diagram which shows an example of the power consumption cost screen which concerns on other embodiment.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals. Hereinafter, although a case where the present invention is applied to a home system will be described as a specific example, the present invention can be similarly applied to a building system and the like as described later. That is, the embodiments described below are for the purpose of illustration, and do not limit the scope of the present invention. Therefore, although one skilled in the art can adopt an embodiment in which each or all of these elements are replaced with equivalent ones, these embodiments are also included in the scope of the present invention.

(Embodiment)
FIG. 1 is a schematic view showing an example of the entire configuration of a home system 1 according to an embodiment of the present invention. As illustrated, the home system 1 is consumed or generated in the residence H, a storage facility 10 for storing electric power, a power generation facility 20 for generating electric power, a breaker 30 for interrupting the electric power supplied into the residence H, and the like. A power measurement device 40 that measures power, a home appliance 50 that consumes power in the residence H, a power control device 60 that controls the entire home system 1, and a terminal device 70 used by a user are provided.

  A thick line in FIG. 1 indicates a power line PL. That is, the power storage facility 10, the power generation facility 20, the breaker 30, and the home appliance 50 are connected to be able to supply (or output) power via the power line PL. And current transformer CT for measuring the electric power which flows into power line PL is arranged near those apparatus (equipment).

  The dotted line in FIG. 1 indicates the communication line CL. That is, the storage facility 10, the power generation facility 20, the power measurement device 40, the home appliance 50, the power control device 60, and the terminal device 70 are connected to the home network N1 through the communication line CL. The communication line CL (in-home network N1) is formed of, for example, a wired LAN (Local Area Network) or a wireless LAN.

  Further, the home system 1 can communicate with the server 80 disposed outside the residence H. The server 80 stores, for the commercial power source (commercial power system) PS, for example, an electricity charge table 81 defining an electricity charge (purchased charge) for each time zone. The electricity charge table 81 also includes the charge for purchasing the generated electric power (the sale fee). The purchase fee need not be uniform, but may be defined for each time zone. The power control apparatus 60 is communicably connected to the server 80 via the out-of-home network N2, and can read out such an electricity bill table 81.

  The storage facility 10 is, for example, a storage system that includes a stationary storage battery (as an example, a lithium ion battery), and is capable of storing (charging) and discharging electric power. The storage facility 10 is controlled by the power control device 60 via the communication line CL (in-home network N1), and performs charging of the storage battery and discharging of the storage battery. In addition, the power storage facility 10 may be a charge / discharge system using an electric car or the like.

  The power generation facility 20 is, for example, a solar power generation system including a solar panel that generates electric power by solar light, a power conditioner that converts direct current power to alternating current power, and the like. The power generation facility 20 is controlled by the power control device 60 via the communication line CL, supplies the generated electric power to the home appliance 50 and the like in the residence H, and causes the surplus power to reversely flow to the commercial power source PS. In addition, the power generation facility 20 may be a power generation system using wind power or a fuel cell.

  The breaker 30 appropriately shuts off the supply of power from the commercial power source PS to the power line PL in the residence H. For example, when the power consumed in the residence H (power supplied from the commercial power PS) exceeds a predetermined capacity, the breaker 30 electrically connects the commercial power PS and the power line PL. Cut off. The capacity of the breaker 30 is determined, for example, when a user contracts with a power company. The breaker 30 may be a leakage breaker.

  The power measurement device 40 includes, for example, a power detection unit 41 and a communication unit 42. The power detection unit 41 detects the amount of power flowing through the power line PL, using the above-described current transformer CT. In addition, the communication unit 42 transmits, for example, information of the amount of power detected by the power detection unit 41 to the power control apparatus 60. That is, the power measurement apparatus 40 uses the current transformer CT to reverse the amount of power sold from the power generation facility 20 to the commercial power source PS through the power line PL, the amount of power purchased from the commercial power source PS, into the power line PL, and the power generation facility 20 The amount of power generation due to the above, the amount of power consumption by the home appliance 50, the amount of charge to the storage facility 10, and the amount of discharge from the storage facility 10 to the power line PL are measured. The power measuring device 40 transmits these to the power control device 60 as, for example, information on the amount of power sold, the amount of power generation, the amount of power consumption, and the amount of charge and discharge.

  The home appliance 50 is a power consuming device that consumes power in the residence H. In addition, although the case where two household appliances 50 are arrange | positioned in the house H is shown in FIG. 1, it is in order to demonstrate easily, and the number of the household appliances 50 can be suitably changed according to the actual condition. It is.

  The power control device 60 is, for example, a HEMS (Home Energy Management System) controller capable of integrally controlling devices (equipment) in the residence H. The power control device 60 communicates with, for example, the power measurement device 40 via the communication line CL, and collects information on the amount of power measured by the power measurement device 40. In addition to this, the power control device 60 controls the power storage facility 10, the power generation facility 20 and the like via the communication line CL.

  An example of the configuration of the power control device 60 will be described below with reference to FIG. FIG. 2 is a block diagram showing an example of the configuration of the power control apparatus 60. As shown in FIG. As illustrated, the power control device 60 includes an in-home communication unit 61, an out-of-home communication unit 62, a data storage unit 63, and a control unit 64.

  The in-home communication unit 61 is, for example, a communication unit for connecting to the in-home network N1 through the communication line CL, and under the control of the control unit 64, the storage facility 10, the power generation facility 20, the power measuring device 40, the home appliance 50, And, communication with the terminal device 70 is performed. For example, the in-home communication unit 61 receives the information of the amount of power transmitted from the power measurement device 40. The in-home communication unit 61 also generates screen data (a power consumption screen, a power consumption cost screen, a power consumption cost prediction screen, a storage residual amount screen, etc., which will be described later) generated by the control unit 64 (a display control unit 644 described later). ) To the terminal device 70.

  The out-of-home communication unit 62 is, for example, a communication adapter for connecting to an external out-of-home network N2, and communicates with an external server 80 under the control of the control unit 64. For example, the outside-home communication unit 62 receives the information of the above-described electricity bill table 81 sent from the server 80.

  The data storage unit 63 includes, for example, a non-volatile semiconductor memory or the like, and stores information on the amount of power received from the power measurement device 40 and information on the electricity bill table 81 received from the server 80. That is, the data storage unit 63 stores the power consumption for each time slot aggregated by the control unit 64 (a power consumption totaling unit 641 described later). Further, the data storage unit 63 stores an electricity bill table 81 that defines the electricity bill by time zone and the purchase fee of the power. Furthermore, the data storage unit 63 stores the power consumption cost (including the predicted power consumption cost) for each time zone calculated by the control unit 64 (power cost calculation unit 642 described later). In addition to this, the data storage unit 63 stores a control schedule and the like used to control the power storage facility 10 and the power generation facility 20.

  The control unit 64 includes a central processing unit (CPU), a read only memory (ROM), a random access memory (RAM) and the like (all not shown), and controls the entire power control apparatus 60. The control unit 64 functionally includes a power amount totaling unit 641, a power cost calculation unit 642, a power amount prediction unit 643, a display control unit 644, an operation reception unit 645, and a command unit 646. These functions are realized by the CPU using the RAM as a work memory and appropriately executing, for example, various programs (a program for screen generation processing described later, etc.) stored in the ROM.

  The power amount totaling unit 641 counts the power consumption amount for one day from the power amount received from the power measurement device 40. As an example, the power amount totaling unit 641 counts the power consumption for one day as follows.

  First, the power consumption totaling unit 641 counts, for each time zone, the power consumption by the home appliance 50 among the received power consumption. Then, the power amount totaling unit 641 divides the breakdown of the power consumption collected for each time zone into the power purchase amount from the commercial power source PS, the discharge amount from the power storage facility 10, and the power generation amount by the power generation facility 20 (more specifically It is determined from the amount of power sale which has been reversely flowed to the commercial power source PS, and the amount of power generation excluding the amount of charge to the power storage facility 10). The power amount totaling unit 641 stores, in the data storage unit 63, the power consumption (including the power purchase amount, the discharge amount, and the breakdown of the power generation amount) which is totaled according to such a time zone.

  The power cost calculation unit 642 calculates the power consumption cost for each time zone based on the power consumption aggregated for each time zone by the power amount aggregation unit 641 and the electricity rate table 81. As an example, the power cost calculation unit 642 calculates the power consumption cost for one day as follows.

  First, the power cost calculation unit 642 refers to the electricity rates by time zone and the purchase rates from the electricity rate table 81. Then, the power cost calculation unit 642 multiplies the price (unit price) corresponding to the breakdown (the purchased amount, the discharged amount, and the generated amount) of the consumed electric energy by time zone that the electric energy totaling unit 641 has aggregated, Calculate the power consumption cost by time zone. That is, the power purchase amount is multiplied by the price of the electricity bill during the same time zone. In addition, the power generation amount is multiplied by the price of the purchase fee (the price in the same time zone if it is the price according to the time zone). This is because the power generation amount included in the power consumption is considered to have been profitable by selling electricity if it is not self-consumed, and the cost of the electricity generation amount is considered to be the portion that could not be sold. Furthermore, for the amount of discharge, a price is obtained by adding the loss amount during charging and discharging to the cost required for charging, and the price is multiplied. Specifically, using the storage facility 10 (storage battery) with a charge efficiency of 90% and a discharge efficiency of 85%, the case of charging and charging only 10 kWh at a price of 12.16 [yen / kWh] is taken as an example To explain, the power cost calculation unit 642 calculates (12.16 [yen / kWh] × 10 [kWh]) / (10 [kWh] × 0.9 [%] × 0.85 [%]) and , The price of about 15.90 [yen / kWh] is obtained. That is, a cost is obtained by dividing the cost required for charging by the amount of power that can be discharged and used. The power cost calculating unit 642 multiplies the discharge amount by the price thus obtained.

  The power cost calculation unit 642 causes the data storage unit 63 to store the power consumption cost (including the purchase cost, the discharge cost, and the breakdown of the power generation cost) for each time zone calculated in this manner.

  The power consumption prediction unit 643 predicts, for example, the power consumption by time zone on the next day, based on the past power consumption and the like stored in the data storage unit 63. Note that the target date to be predicted is not limited to the next day, and can be changed as appropriate. Moreover, the method of prediction is not limited to one based on such past results (the amount of power consumption in the past) and the like, and is arbitrary. For example, the power consumption prediction unit 643 may predict the power consumption by time zone on the next day based on the family configuration of the user, the number and types of home appliances 50, the season, and the like. In addition, the power cost calculating unit 642 described above determines the estimated power consumption cost by time zone based on the estimated power consumption by time zone and the electricity rate table 81 (power purchase cost). , Discharge cost, and a breakdown of the power generation cost) are similarly calculated and stored in the data storage unit 63.

  The display control unit 644 generates screen data to be provided to the terminal device 70. Specifically, the display control unit 644 configures a power consumption screen P1 as shown in FIG. 3, a power consumption cost screen P2 as shown in FIG. 4, and a power consumption cost prediction screen P3 as shown in FIG. Generate screen data.

  The power consumption screen P1 of FIG. 3 represents the power consumption by time zone in a graph (bar graph). Note that this graph shows how the power purchase amount, the discharge amount, and the power generation amount are color-coded. That is, in the power consumption screen P1, a graph representing the power consumption by time zone is displayed by being color-coded according to the breakdown (power purchase amount, discharge amount, and power generation amount). With such a power consumption screen P1, it is possible to visualize and display which power consumption is by time zone. The display control unit 644 performs such a power consumption screen P1 based on the power consumption (including the power purchase amount, the discharge amount, and the breakdown of the power generation amount) calculated by the above-described power amount counting unit 641 for each time zone. Generate

  The power consumption cost screen P2 in FIG. 4 graphically shows the power consumption cost for each time zone. Note that this graph also shows that power purchase costs, discharge costs, and power generation costs are color-coded. That is, in the power consumption cost screen P2, a graph representing the power consumption cost by time zone is displayed in a color-coded manner according to the breakdown (power purchase cost, discharge cost, and power generation cost). In addition, the part enclosed by the dotted line in the figure shows the power purchase cost, and although it is a similar color as compared with the color of other power purchase costs in the late-night time zone, it is expressed in a darker color There is. The dark color (the similar color) indicates that the unit cost of purchasing electricity is high. That is, since the unit cost differs depending on the time zone, the purchase cost represents the degree (high / low) of the unit price by shading. The discharge cost and the power generation cost may also be varied depending on the degree of unit price. With such a power consumption cost screen P2, it is possible to visualize and display which power consumption cost by time zone is due to. Furthermore, by expressing by shading, it is possible to visualize and display that the price (price) is different even with the same power. The display control unit 644 performs the power consumption cost based on the power consumption cost (including the purchase cost, the discharge cost, and the breakdown of the power generation cost) for each time zone calculated by the power cost calculation unit 642 described above. The screen P2 is generated.

  The power consumption cost prediction screen P3 of FIG. 5 graphically represents the power consumption cost predicted for each time zone. The power consumption cost predicted screen P3 is a screen in which the power consumption cost predicted by the power cost calculation unit 642 described above is calculated based on the power consumption amount predicted by the power amount prediction unit 643 described above. What is meant is the same as the power consumption cost screen P2 described above. That is, also on the power consumption cost prediction screen P3, the power purchase cost at around 16:00 is shown in dark color (dark color of similar color), indicating that the unit price is higher than the midnight power purchase cost. . Therefore, as described later, the user can easily decide where to assign the discharge cost (drop destination).

  The display control unit 644 generates not only the power consumption amount screen P1, the power consumption cost screen P2, and the power consumption cost prediction screen P3 but also screen data of other screens. For example, the display control unit 644 generates screen data that configures the remaining power amount screen P4 as illustrated in FIG.

  The storage residual amount screen P4 is a graph showing the storage residual amount of the storage battery 10 (storage battery). Note that this graph shows that each of the graphs is color-coded according to the power source used for storage (charging) (the power used as the supply source). That is, the storage residual amount screen P4 is displayed with a graph representing the storage residual amount being color-coded in a color according to the power source used for storage. Also in this graph, even the portions showing the same charging by purchase are represented with shading depending on the degree of the unit price. In addition, when discharging from the storage facility 10, for example, in the case of setting where importance is given to the environment, it is used from the charge by power generation or, for example, in the case of setting where importance is on economy, The user can choose from charging and using. As a result, for example, in the case of a user who places importance on environmental consideration, power consumption can be suppressed so as not to use more than the charge amount by power generation. In addition, if power consumption can be covered by the discharge of the charge due to the power generation even in the time zone in which the power storage facility 10 is not generating power, the user can be satisfied that they are living with clean energy.

  In addition, the electric power cost calculation part 642 mentioned above uses an average value as a cost required for charge, for example, when charging using several power supplies, as shown on the electrical storage residual amount screen P4. However, at the time of discharge, as described above, in the case of setting for use from the generation of electricity, the power cost calculation unit 642 calculates the purchase charge as the cost required for the charge until the charge for the generation is discharged. After that, the average value (the remaining average value) may be used. In addition to this, in the case of setting in which importance is placed on economy, the power cost calculation unit 642 may sequentially use charge from the inexpensive power supply as the cost required for charge.

  Returning to FIG. 2, the operation receiving unit 645 receives the user's operation on the screen data (for example, the power consumption cost prediction screen P3 and the like) generated by the display control unit 644 and sent to the terminal device 70. That is, after the screen data generated by the display control unit 644 is transmitted to the terminal device 70 and displayed, the operation of the user who uses the terminal device 70 (for example, the graph of the power consumption cost prediction screen P3 as described later) When the operation data corresponding to the drag and drop operation etc. performed on the terminal device 70 is sent from the terminal device 70, the operation reception unit 645 receives the operation data.

  The command unit 646 commands control over the power storage facility 10, the power generation facility 20, and the like through the in-home communication unit 61. For example, in the case where the control schedule is reviewed according to the operation accepted by operation accepting unit 645 (for example, the drag and drop operation performed on the graph of power consumption cost prediction screen P3), for example, command unit 646 And instructs the storage facility 10, the power generation facility 20, and the like to perform control in accordance with the reviewed control schedule.

  Returning to FIG. 1, the terminal device 70 is, for example, a portable terminal such as a tablet terminal or a smartphone, and is used by a user. An example of the configuration of the terminal device 70 will be described below with reference to the block diagram of FIG. As illustrated, the terminal device 70 includes a communication unit 71, a display unit 72, an input unit 73, a data storage unit 74, and a control unit 75.

  The communication unit 71 is, for example, a communication unit (for example, a wireless LAN unit) for connecting to the home network N1 through the communication line CL, and communicates with the power control device 60 under the control of the control unit 75.

  The display unit 72 includes a liquid crystal panel or the like, and displays various screens under the control of the control unit 75. Specifically, the display unit 72 displays the above-described power consumption cost prediction screen P3 and the like based on the screen data sent from the power control device 60.

  The input unit 73 includes a touch panel, a touch pad, and the like, and performs processing for receiving an operation input from a user. For example, when a touch panel is employed as the input unit 73, a transparent flat capacitive sensor that detects a change in capacitance is mounted on the liquid crystal display in an overlapping manner. When the electrostatic capacitance sensor detects a touch (press) on a touch surface (display screen of a liquid crystal display for the user) by the user's fingertip or a dedicated pen, information (coordinate data) of the position is controlled. It is output to the unit 75.

  The data storage unit 74 is configured of, for example, a non-volatile semiconductor memory or the like. The data storage unit 74 temporarily stores screen data (screen data such as the power consumption cost prediction screen P3 described above) generated by the power control device 60 and received through the communication unit 71. In addition to this, the data storage unit 74 stores programs and the like that the control unit 75 executes.

  The control unit 75 includes a CPU, a ROM, a RAM, and the like (none of which are shown), and controls the entire terminal device 70. The control unit 75 functionally includes a screen display processing unit 751 and an input detection unit 752. This function is realized by the CPU appropriately using the RAM as a work memory and appropriately executing various programs stored in the ROM and the data storage unit 74.

  The screen display processing unit 751 causes the display unit 72 to display a screen (the above-described power consumption cost prediction screen P3 or the like) based on the screen data sent from the controller 10 through the communication unit 71.

  For example, when the operation from the user on the screen is received from the input unit 73, the input detection unit 752 generates operation data and transmits the operation data to the power control apparatus 60 through the communication unit 71. Specifically, an operation on the power consumption cost prediction screen P3 will be described as an example with reference to FIGS. 8A and 8B. In the power consumption cost prediction screen P3 as shown in FIG. 8A, it is assumed that a late night discharge cost SL (as an example, discharge costs in a plurality of time zones) in the graph is selected by the user's finger. When this discharge cost SL is dragged and dragged onto the purchase cost in the evening (time period before 16 o'clock) in the graph, as shown in FIG. 8B, the input detection unit 752 detects such drag and drop Operation data is generated and transmitted to the power control apparatus 60 through the communication unit 71.

  When the operation receiving unit 645 of the power control apparatus 60 described above receives such operation data, the power amount predicting unit 643 described above revises the prediction of the power consumption based on the operation data. Specifically, the power amount prediction unit 643 revises the prediction of the power consumption amount so as to perform the discharge indicated by the discharge cost SL of FIG. 8A in the time zone dropped in FIG. 8B. Then, the power consumption cost is recalculated by the power cost calculation unit 642 described above, and the power consumption cost prediction screen P3 is updated by the display control unit 644 as shown in FIG. That is, the time zone of discharge cost SL selected in FIG. 8A is reviewed as the purchase cost in FIG. 9, and the time zone in which discharge cost SL is dropped in FIG. 8B is the discharge cost in FIG. Is being reviewed.

  When performing the drag-and-drop operation as shown in FIG. 8A and FIG. 8B described above, since the power purchase cost at around 16:00 is expressed in dark color (dark color of similar color), It can be easily recognized that the unit cost is higher than the power purchase cost, and the discharge cost distribution destination (drop destination) should be around 16 o'clock.

  Although the power control device 60 normally displays a graph along the optimal control schedule on the power consumption cost prediction screen P3, it may occur depending on the user's situation. For example, when a sudden visitor schedule is entered, or when the home appliance 50 is used in a different time zone from normal, the control schedule can be reviewed by instructing by such a drag and drop operation, so a manual operation can be performed. Is also easily possible.

  The power consumption cost prediction screen P3 is created by the power control device 60 predicting the power generation amount of the power generation facility 20 and the load due to the operation of the home appliance 50, but the user recognizes that the prediction is deviated Also in the case where it is, etc., the control schedule can be easily reviewed similarly by the manual operation (drag and drop operation).

  For example, if there are plans to move many home appliances 50 during the daytime scheduled to be covered by power generation by the power generation facility 20 and there is a risk that the amount of power generation alone will be insufficient, the user Move the discharge cost to (drag and drop).

  In addition, when an electric car (storage battery) is used as the storage facility 10, if the discharge cost is displayed in a time zone in which the user intends to go out with the electric vehicle, the user determines the discharge cost of the time zone. Move to another time zone.

  Hereinafter, the operation of the power control apparatus 60 (the control unit 64) according to the embodiment of the present invention will be described with reference to FIG. FIG. 10 is a flowchart illustrating an example of the screen generation process performed by the control unit 64. The screen generation processing is started, for example, when the terminal device 70 instructs a transition to a desired screen by the user, and the generation request of the screen data is sent from the terminal device 70.

  First, the control unit 64 counts the power consumption for one day (step S101). That is, the power consumption totaling unit 641 counts the power consumption for one day from the power consumption received from the power measurement device 40. For example, the power consumption totaling unit 641 counts, for each time zone, the power consumption by the home appliance 50 among the received power consumption. Then, the power amount totaling unit 641 divides the breakdown of the power consumption collected for each time zone into the power purchase amount from the commercial power source PS, the discharge amount from the power storage facility 10, and the power generation amount by the power generation facility 20 (more specifically It is determined from the amount of power sale which has been reversely flowed to the commercial power source PS, and the amount of power generation excluding the amount of charge to the power storage facility 10).

  The control unit 64 calculates the power consumption cost for one day (step S102). That is, the power cost calculation unit 642 calculates the power consumption cost for each time zone based on the power consumption collected for each time zone in the above step S101 and the electricity charge table 81. For example, the power cost calculation unit 642 refers to the electricity rates for each time zone and the purchase rates from the electricity rate table 81. Then, the power cost calculation unit 642 multiplies the price (unit price) corresponding to the breakdown (the purchased amount, the discharged amount, and the generated amount) of the consumed electric energy by time zone that the electric energy totaling unit 641 has aggregated, Calculate the power consumption cost by time zone. That is, the power purchase amount is multiplied by the price of the electricity bill during the same time zone. In addition, the power generation amount is multiplied by the price of the purchase fee (the price in the same time zone if it is the price according to the time zone). Then, for the amount of discharge, a price is obtained by adding the loss at the time of charging and discharging to the cost required for charging, and the price is multiplied.

  The control unit 64 determines whether a prediction is necessary (step S103). For example, the control unit 64 determines whether or not the screen requested for the power consumption cost is requested by the terminal device 70. If the control unit 64 determines that the prediction is not necessary (step S103; No), the process proceeds to step S106 described later.

  On the other hand, when it is determined that the prediction is necessary (Step S103; Yes), the control unit 64 predicts the power consumption on the next day (Step S104). That is, the power consumption prediction unit 643 predicts the power consumption by time zone on the next day based on the past power consumption and the like stored in the data storage unit 63. In addition, the method of prediction is not limited to one based on such past results (the amount of power consumption in the past) and the like, and is arbitrary. For example, the power consumption prediction unit 643 may predict the power consumption by time zone on the next day based on the family configuration of the user, the number and types of home appliances 50, the season, and the like.

  The control unit 64 calculates the expected power consumption cost (step S105). That is, the power cost calculation unit 642 calculates the estimated power consumption cost for each time zone based on the power consumption amount for each time zone predicted in step S104 described above and the electricity rate table 81.

  The control unit 64 generates screen data (step S106). That is, the display control unit 644 generates screen data to be provided to the terminal device 70. That is, when the screen data for displaying the power consumption is requested, the display control unit 644 generates the screen data constituting the power consumption screen P1 as shown in FIG. In addition, when the screen data for displaying the power consumption cost is requested, the display control unit 644 generates screen data constituting the power consumption cost screen P2 as shown in FIG. 4. Further, when the screen data for predicting and displaying the power consumption cost is requested, the display control unit 644 generates the screen data constituting the power consumption cost prediction screen P3 as shown in FIG. 5. Furthermore, when the screen data for displaying the remaining amount of the storage battery is requested, the display control unit 644 generates the screen data constituting the remaining power amount screen P4 as shown in FIG.

  The control unit 64 transmits the screen data to the terminal device 70 (step S107). That is, the display control unit 644 transmits the generated screen data from the in-home communication unit 61 to the terminal device 70.

  The control unit 64 determines whether there is an operation on the graph (step S108). That is, the operation accepting unit 645 determines whether or not the display control unit 644 generates an operation on the graph of the screen data sent to the terminal device 70. When determining that there is no operation on the graph (Step S108; No), the control unit 64 subsequently determines the presence or absence of the operation.

  On the other hand, when it is determined that there is an operation on the graph (step S108; Yes), the control unit 64 updates the screen data (step S109). For example, when a drag and drop operation is performed on the graph of the power consumption cost prediction screen P3 as shown in FIGS. 8A and 8B described above, the power amount prediction unit 643 is indicated by the discharge cost SL of FIG. 8A. Power consumption is reviewed so that the discharge is performed in the time zone dropped in FIG. 8B. Further, the power cost calculating unit 642 calculates the power consumption cost again according to the reviewed prediction of the power consumption. Then, as shown in FIG. 9, the display control unit 644 updates the power consumption cost prediction screen P3 based on the power consumption cost calculated again (transmits the updated screen data to the terminal device 70). .

  Then, the control unit 64 returns the process to step S108 described above. In addition, when the transition to another screen is instructed from the user of the terminal device 70, the control unit 64 returns the process to step S101 described above.

  Such screen generation processing can appropriately visualize and display the cost of consumed power.

(Other embodiments)
In the above embodiment, as shown in the screens P1 to P4 of FIGS. 3 to 6 described above, the display control unit 644 generates a graph representing the breakdown (each cost or the like) by color. As described above, a graph in which the breakdown can be identified may be generated by changing the display mode in addition to the color coding. For example, the display control unit 644 may generate a graph whose breakdown can be identified by a different pattern or the like. Furthermore, the type of graph is not limited to the bar graph, and a pie graph, a line graph or the like may be used.

  In the above embodiment, the power consumption screen P1, the power consumption cost screen P2, the power consumption cost prediction screen P3 and the like are displayed as a single graph without a comparison target. It may be displayed as a graph including. For example, the display control unit 644 may generate screen data configuring the power consumption cost screen P5 as illustrated in FIG. 11 and cause the terminal device 70 to display the screen data.

  The power consumption cost screen P5 of FIG. 11 is a graph showing the power consumption cost by time zone, comparable to that before the introduction of the power storage facility 10 and the power generation facility 20. With such a power consumption cost screen P5, it is possible to appropriately visualize and display the effect of the introduction of the power storage facility 10 and the power generation facility 20 and the effect of the energy management control by the power control device 60. In addition, in this power consumption cost screen P5, although the case where the graph before and behind introduction of the electrical storage installation 10 and the power generation installation 20 is overlapped and displayed as an example is shown, the graph before and behind introduction is displayed side by side elsewhere It is possible to make appropriate changes, such as displaying or switching.

  Although the above embodiment has described the case where the user operates the graph of the power consumption cost prediction screen P3 as an example of operating the screen, the user can operate the power consumption screen P1 and the power consumption cost screen P2 as well. It is.

  For example, when the user touches the power purchase amount (power purchase cost) of the power consumption amount screen P1 or the power consumption cost screen P2, the power control device 60 controls to stop or suppress the operation of the home appliance 50 in that time zone. Save electricity and minimize the amount of electricity purchased (cost of electricity purchase).

  Besides this, the user can select the result of a plurality of controls (for example, an economic mode that emphasizes energy saving, a green mode that actively consumes the amount of power generation, etc.), and the power consumption based on the control The screen P1 or the power consumption cost screen P2 may be displayed.

  In addition, the power consumption cost screen P2 may also be displayed in the case where the user has applied a contract other than the electricity rate plan. For example, the user can select a plurality of power companies and a plurality of electricity rate plans, and the power control apparatus 60 displays the corresponding power consumption cost screen P2. This allows the user to find a more affordable electricity rate plan, which also leads to switching support of the electricity rate plan. Furthermore, the power control apparatus 60 may change and display the power company or the electricity rate plan for each time zone.

  In addition, when displaying the discharge amount (discharge cost) on the power consumption screen P1 or the power consumption cost screen P2, the location where discharge is efficiently made can be displayed more easily by, for example, darkening the color. It is also good. The efficiency of discharge is mainly determined by the amount of discharge. For example, discharging at the rating of the power conditioner is efficient. In addition to this, the efficiency may be determined in consideration of factors such as temperature, and the color may be darkened to make the display easier to understand.

  In addition, when displaying the power consumption screen P1, the power consumption cost screen P2, and the power consumption cost prediction screens P3 and P5 on the terminal device 70, the size of the display unit 72 of the terminal device 70 (for example, tablet The time width of the graph to be displayed may be changed according to the type, smartphone type, etc.).

  Furthermore, the power consumption amount (power consumption cost) for one day is displayed on the power consumption amount screen P1, the power consumption cost screen P2, and the power consumption cost prediction screens P3 and P5. The user may be arbitrarily switched, such as one week, one month, or one year. At this time, information on the weather forecast and the presence / absence of the user (for example, acquired from the schedule information of the user) may be displayed together.

  Although the home system 1 has been described as an example in the above embodiment, the present invention is similarly applicable to, for example, a building system or the like disposed in a building or the like.

  Although the above embodiment has described the case where the power control apparatus 60 is disposed in the house H, the power control apparatus 60 may be disposed outside the house H. For example, the server 80 illustrated in FIG. 1 may function as the power control device 60. Also in this case, the cost of the consumed power can be appropriately visualized and displayed.

  Further, in the above embodiment, the case of using the dedicated power control device 60 has been described, but the operation program for defining the operation of the power control device 60 is applied to the existing personal computer, information terminal equipment, etc. It is also possible to cause a personal computer or the like to function as the power control device 60 according to the present invention.

  Also, the distribution method of such a program is arbitrary, and for example, it is computer readable such as a CD-ROM (Compact Disk Read-Only Memory), a DVD (Digital Versatile Disk), an MO (Magneto Optical Disk), and a memory card. It may be stored in a recording medium and distributed, or may be distributed via a communication network such as the Internet.

  The present invention is capable of various embodiments and modifications without departing from the broad spirit and scope. In addition, the embodiment described above is for describing the present invention, and does not limit the scope of the present invention. That is, the scope of the present invention is indicated not by the embodiments but by the claims. And, various modifications applied within the scope of the claims and the meaning of the invention are considered to be within the scope of the present invention.

  The present invention can be adopted in a power control apparatus, a cost display method, and a program that can appropriately visualize and display the cost of consumed power.

Reference Signs List 1 home system, 10 power storage equipment, 20 power generation equipment, 30 breakers, 40 power measurement devices, 41 power detection units, 42, 71 communication units, 50 home appliances, 60 power control devices, 61 in-home communication units, 62 outside communication units , 63, 74 data storage unit, 64, 75 control unit, 641 power amount counting unit, 642 power cost calculating unit, 643 power amount predicting unit, 644 display control unit, 645 operation receiving unit, 646 command unit, 70 terminal device, 72 display unit, 73 input unit, 751 screen display processing unit, 752 input detection unit, 80 server, 81 electricity bill table

Claims (5)

A display control means for displaying on a display device a graph showing power costs for power including commercial power and generated power consumed by a home appliance, the breakdown of the power costs being identifiable.
Operation accepting means for accepting user's operation on the power cost of the graph displayed on the display device ;
Control means for controlling the in-home device according to the control schedule reviewed according to the operation accepted by the operation accepting means;
The display control means updates the graph in which the power cost is moved according to the received operation.
Power control unit. Power amount tabulating means for tabulating the power consumption amount by the home appliance;
And power cost calculation means for calculating the power cost of the commercial power and the generated power based on the aggregated power consumption and charge information.
The power control device according to claim 1 . The power cost calculating means further calculates the power cost of the discharged power from the storage battery,
The display control means causes the display device to display a graph that identifiably represents the breakdown of the power cost including the calculated commercial power, the generated power, and the discharged power.
The power control device according to claim 2 . A display control step of displaying on a display device a graph showing power costs for power including power consumed by commercial power and home power and representing the breakdown of power costs in an identifiable manner;
An operation accepting step of accepting user's operation on the power cost of the graph displayed on the display device ;
A control step of controlling the in-home device according to the control schedule reviewed according to the operation received in the operation receiving step;
The display control step updates the graph in which the power cost is moved according to the received operation.
How to display the cost. Computer,
A display control unit that causes a display device to display a graph indicating power costs for power including commercial power consumed by a home appliance and generated power and identifiably representing the breakdown of the power costs,
An operation receiving unit that receives a user's operation on the power cost of the graph displayed on the display device ;
According to the control schedule reviewed according to the operation accepted by the operation accepting unit, the control unit functions as a control unit that controls the in-home device,
The display control unit updates the graph in which the power cost is moved according to the received operation.
program.

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