WO2017090173A1

WO2017090173A1 - Control device, charging information display method and program

Info

Publication number: WO2017090173A1
Application number: PCT/JP2015/083353
Authority: WO
Inventors: 遠藤　聡; 矢部　正明; 聡司峯澤; 一郎丸山
Original assignee: 三菱電機株式会社
Priority date: 2015-11-27
Filing date: 2015-11-27
Publication date: 2017-06-01
Also published as: JPWO2017090173A1; JP6373513B2

Abstract

Upon detecting an instruction to start charging a secondary battery (11) installed in an electric vehicle (10), the control device (2) estimates a power storage amount of the secondary battery (11) as of a specified time. The control device (2) further acquires power shortage amount information on the basis of the estimated power storage amount and a target power storage amount. Also, the control device (2) generates a list of one or more appliances that can be controlled for power saving during the charging period of the secondary battery (11). Next, the control device (2) instructs an operation terminal (3) to display the acquired power shortage amount information and charging information including the generated list.

Description

Control device, charging information display method and program

The present invention relates to a control device, a charging information display method, and a program.

電気 Electric vehicles that use electricity as a power source are widespread. The user can charge the storage battery mounted on the electric vehicle with, for example, a charging facility installed at home. Regarding charging to an electric vehicle, Patent Document 1 discloses an apparatus capable of performing reserved charging of a storage battery.

JP 2010-154646 A

By the way, in recent years, a power conditioning system (PCS) for controlling charging and discharging of a storage battery mounted on an electric vehicle is known which changes charging power per unit time according to electric power demand in the house.

In such charging by the PCS, when the time from the time when charging is instructed to the scheduled use time, that is, the time when the electric vehicle is used, is short, the storage amount of the storage battery is necessary for use by the scheduled use time. It is often the case that the amount of electricity stored (target amount of electricity stored) is not reached. In this way, when the charging period is short, the user needs to perform power saving such as stopping the operation of the electric device or reducing the driving ability in order to reduce the power demand in the house.

As described above, the power demand per unit time of the storage battery can be increased by reducing the power demand in the house. However, on the other hand, since the electric devices in the house are operated for power saving, there is a possibility that the comfort and convenience of the user may be impaired.

The present invention has been made to solve the above-described problem, and an object of the present invention is to provide a control device or the like that can present information to a user so that accurate power saving can be performed during the charging period of the storage battery. And

In order to achieve the above object, a control device according to the present invention provides:
A control device that presents charging information regarding charging of a storage battery to a user via a user interface device,
Instruction detecting means for detecting an instruction to start charging the storage battery;
When the instruction is detected, the shortage power amount information obtained based on the estimated power storage amount and the target power storage amount of the storage battery at a specified time, and one or more devices capable of power saving control during a charge period of the storage battery Display instruction means for instructing the user interface device to display the charging information including a list.

According to the present invention, information for enabling accurate power saving during the charging period of the storage battery in order to cause the user interface device to display charging information including information on insufficient power and a list of devices capable of power saving control. Can be presented to the user.

It is a figure showing the whole energy management system composition concerning an embodiment of the present invention. It is a block diagram which shows the hardware constitutions of a control apparatus. It is a figure for demonstrating the database etc. which are memorize | stored in the secondary storage device with which a control apparatus is provided. It is a block diagram which shows the function structure of a control apparatus. It is a figure which shows an example of a charge instruction | indication screen. It is a figure which shows an example of a charge information screen. It is a figure for demonstrating selection of a control pattern. It is a flowchart which shows the procedure of a charging information display process. It is a figure for demonstrating the automatic selection of a control parameter. It is a figure which shows the whole structure of the energy management system which concerns on other embodiment.

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

FIG. 1 is a diagram showing an overall configuration of an energy management system 1 according to an embodiment of the present invention. The energy management system 1 is a so-called HEMS (Home Energy Management System) that manages electric power used in a general household. The energy management system 1 includes a control device 2, an operation terminal 3, a power measuring device 4, an EV-PCS 5, and a PV-PCS 6.

The control device 2 is installed at an appropriate location in the house H, monitors the power consumed in this home (demand area), and displays the power consumption status via the operation terminal 3. In addition, the control device 2 performs operation control of a plurality of devices 7 (devices 7-1, 7-2,...) And monitoring of operation states. Details of the control device 2 will be described later.

The operation terminal 3 (user interface device) includes an input device such as a push button, a touch panel, and a touch pad, a display device such as an organic EL display and a liquid crystal display, and a communication interface, such as a smartphone or a tablet terminal. It is a portable device. The operation terminal 3 communicates with the control device 2 in accordance with a known communication standard such as Wi-Fi (registered trademark), Wi-SUN (registered trademark), or a wired LAN. The operation terminal 3 receives an operation from the user and transmits information indicating the received operation content to the control device 2. Further, the operation terminal 3 receives the information transmitted from the control device 2 and presented to the user, and displays the received information. Thus, the operation terminal 3 plays a role as an interface (user interface) with the user.

The power measuring device 4 measures the value of power transmitted through each of the plurality of power lines D1 to D3, D5, and D6 in the home (demand area). The power line D1 is disposed between the commercial power supply 8 and the EV-PCS 5, the power line D2 is disposed between the EV-PCS 5 and the distribution board 9, and the power line D3 is disposed between the PV-PCS 6 and the EV-PCS 5 Between the two. The power line D5 is wired between the distribution board 9 and the device 7-1, and the power line D6 is wired between the distribution board 9 and the device 7-2.

The power measuring device 4 is connected to each of CT (Current Transformers) 1 to 3, 7 and 8 connected to the power lines D1 to D3, D5 and D6 via communication lines. CT1 to 3, 7, and 8 are sensors for measuring an alternating current. The power measuring device 4 measures the power value in the power line D1 based on the measurement result of CT1. Similarly, the power measuring device 4 measures the power values in the power lines D2, D3, D5, and D6 based on the measurement results of CT2, 3, 7, and 8.

Further, the power measuring device 4 includes a wireless communication interface and is connected to the control device 2 via a wireless network (not shown) constructed in the house H so as to be communicable. This wireless network is, for example, a network conforming to ECHONET Lite. The power measuring device 4 may be of a specification that is connected to this wireless network via an external communication adapter (not shown).

In response to the request from the control device 2, the power measurement device 4 generates measurement data that stores the measured power value of the power line D <b> 1 and transmits the measurement data to the control device 2. This measurement data also stores the device address of the power measurement device 4, the ID (identification) of the power line D, and the measurement time. Similarly, the power measurement device 4 generates measurement data storing the power values of the measured power lines D2, D3, D5, and D6 in response to a request from the control device 2, and transmits the measurement data to the control device 2. Note that the power measurement device 4 may generate measurement data storing all the power values of the power lines D1 to D3, D5, and D6 in response to a request from the control device 2, and transmit the measurement data to the control device 2.

EV-PCS5 is a power conditioning system for EV (electric vehicle) 10. The EV-PCS 5 controls charging and discharging of the storage battery 11 mounted on the EV 10. The EV-PCS 5 supplies power from the commercial power supply 8 and the PV-PCS 6 to the storage battery 11 via the power line D4 when the storage battery 11 is charged. Further, the EV-PCS 5 supplies power from the storage battery 11 to the distribution board 9 via the power lines D4 and D2 when the storage battery 11 is discharged.

EV-PCS 5 measures the value of power transmitted through each of power lines D1, D3, and D4 in order to control charging and discharging. The EV-PCS 5 is connected to each of the

CTs

4, 5, and 6 connected to the power lines D1, D3, and D4 via communication lines. The EV-PCS 5 measures the power value in the power line D1 based on the measurement result of CT4. Similarly, EV-PCS 5 measures the power values in power lines D3 and D4 based on the measurement results of CT5 and CT6.

The EV-PCS 5 is communicably connected to the control device 2 via a dedicated communication line. Note that the EV-PCS 5 may communicate with the control device 2 via the above-described wireless network constructed in the house H.

PV-PCS6 is a power conditioning system for PV (solar power generation). The PV-PCS 6 converts the electricity generated by the PV panel 12 from DC power to AC power and supplies it to the EV-PCS 5 through the power line D3. The electric power supplied from the PV-PCS 6 is supplied to the distribution board 9 via the EV-PCS 5 or used for charging the storage battery 11. Alternatively, the power supplied from the PV-PCS 6 may be supplied to the commercial power supply 8 (so-called power sale).

The device 7 (devices 7-1, 7-2,...) Is an electric device such as an air conditioner, an illuminator, a floor heating system, a refrigerator, an IH (Induction Heating) cooker, a television, a water heater, and the like. The devices 7-1, 7-2,... Are installed in the house H (including the site), and are connected to the power lines D5, D6,. Each device 7 is communicably connected to the control device 2 via the wireless network (not shown). Each device 7 may have a specification that is connected to this wireless network via an external communication adapter (not shown).

In response to a request from the control device 2, each device 7 transmits to the control device 2 data (operating state data) storing a device ID (identification), a current time, and information indicating the current operating state. To do.

As shown in FIG. 2, the control device 2 includes a CPU (Central Processing Unit) 20, a communication interface 21, a ROM (Read Only Memory) 22, a RAM (Random Access Memory) 23, and a secondary storage device 24. Is provided. These components are connected to each other via a bus 25. The CPU 20 controls the control device 2 in an integrated manner. Details of functions realized by the CPU 20 will be described later.

The communication interface 21 includes a NIC (Network Interface Card Controller) for wireless communication with the power measuring device 4 and each device 7 via the wireless network and a NIC for wireless communication or wired communication with the operation terminal 3. Consists of.

ROM 22 stores a plurality of firmware and data used when executing these firmware. The RAM 23 is used as a work area for the CPU 20.

The secondary storage device 24 includes an EEPROM (Electrically-Erasable-Programmable-Read-Only Memory), a readable / writable nonvolatile semiconductor memory such as a flash memory, a hard disk drive, and the like. As illustrated in FIG. 3, the secondary storage device 24 stores a power DB 240, a device DB 241, and an operation schedule 242. In addition to this, the secondary storage device 24 is used when a program for monitoring the power consumed in the home, a program for controlling the operation of each device 7, and the execution of these programs. Store the data.

The power DB (power database) 240 is a database in which a history of measurement results is stored for each power line. CPU20 updates electric power DB240 based on the measurement data from the electric power measurement apparatus 4 acquired for every fixed time.

The device DB (device database) 241 is a database in which a history of operation states is stored for each device 7. The operation state includes, for example, a power supply state (power on / off), operation presence / absence (during operation / stop), operation mode, setting information, and the like. For example, in the case of an air conditioner, the operation mode includes cooling, heating, air blowing, dehumidification, and the like, and in the case of a rice cooker, rice cooking, heat retention, and the like are applicable. The setting information corresponds to a set temperature (also referred to as a target temperature) in an air conditioner or the like, an air volume, and the like. CPU20 updates apparatus DB241 based on the driving | running state data from each apparatus 7 acquired for every fixed time.

The operation schedule 242 is a data table indicating an operation schedule of each device 7 in a predetermined period. In the present embodiment, the operation schedule 242 registers a record indicating an operation schedule for each device 7 for one day (24 hours). The operation schedule of each device 7 stores the start time and end time of operation and the operation state in association with each other. The operation schedule 242 is generated by the CPU 20 at a predetermined time every day (for example, midnight) and stored in the secondary storage device 24.

FIG. 4 is a block diagram showing a functional configuration of the control device 2. Functionally, the control device 2 includes a user interface unit 200, a power value acquisition unit 201, a device control unit 202, an EV-PCS control unit 203, an operation schedule generation unit 204, and a charging information screen generation unit 205. And a display instruction unit 206. Each of these functional units is realized by the CPU 20 executing one or a plurality of programs stored in the secondary storage device 24.

The user interface unit 200 performs user interface processing via the operation terminal 3. That is, the user interface unit 200 receives an operation from the user via the operation terminal 3. In addition, the user interface unit 200 transmits data indicating a screen (power storage information screen) for presenting power storage information to the user, data indicating a screen for presenting other information, and the like to the operation terminal 3.

The power value acquisition unit 201 performs processing for acquiring the measured power value from the power measurement device 4. Specifically, the power value acquisition unit 201 requests the power measurement device 4 to transmit the above-described measurement data corresponding to each power line at a constant time interval (for example, every 30 seconds). In response to this request, the power value acquisition unit 201 acquires measurement data for each power line transmitted from the power measurement device 4. The power value acquisition unit 201 updates the power DB 240 based on each acquired measurement data.

The device control unit 202 performs processing for acquiring the operation state from each device 7. Specifically, the device control unit 202 requests each device 7 to transmit operating state data at a constant time interval (for example, 30 seconds). In response to such a request, the device control unit 202 acquires the operation state data transmitted from each device 7. The device control unit 202 updates the device DB 241 based on the acquired operation state data of each device 7.

Also, the device control unit 202 automatically controls the operation of each device 7 based on the operation schedule 242. Furthermore, the device control unit 202 can also operate the specified device 7 with the specified content in accordance with a user operation via the operation terminal 3.

The EV-PCS control unit 203 instructs the EV-PCS 5 to start charging when receiving an instruction to start charging the EV 10, that is, charging the storage battery 11, via the operation terminal 3. In addition, the EV-PCS control unit 203 acquires the current power storage amount (remaining amount) of the storage battery 11 in accordance with a request from the charging information screen generation unit 205. The EV-PCS control unit 203 acquires the remaining amount of the storage battery 11 by transmitting a command for requesting a storage amount to the EV-PCS 5. The EV-PCS control unit 203 notifies the charge information screen generation unit 205 of the acquired remaining amount of the storage battery 11.

The operation schedule generation unit 204 generates an operation schedule 242 with reference to the contents of the device DB 241 at a predetermined time every day (for example, midnight). For example, the operation schedule generation unit 204 estimates the today's operation schedule of each device 7 based on the operation status of the previous day of each device 7. Or the driving schedule production | generation part 204 may estimate today's driving schedule of each apparatus 7 by the driving situation for the past one week, the past driving situation of the same day of the week, etc.

If the control device 2 has a calendar registration function, the operation schedule generation unit 204 generates the operation schedule 242 in consideration of the contents of calendar registration. The calendar registration function is a function that can control the operation of the corresponding device 7 based on the event registered in advance by the user and the start time of the event. Here, the events include, for example, “going out (using EV)”, “going out (not using EV)”, “going home”, and the like.

In addition, when the operation schedule of any device 7 is changed by a user operation, the operation schedule generation unit 204 updates the operation schedule 242 in accordance with the change.

When the charging information screen generation unit 205 receives an instruction to start charging the storage battery 11 from the user via the operation terminal 3, a screen (charging information screen) for presenting information (charging information) regarding charging of the storage battery 11 to the user. Is generated. The user can input an instruction regarding charging of the storage battery 11 via a screen (charging instruction screen) as shown in FIG. 5 displayed on the operation terminal 3 by the user interface unit 200.

Through the charging instruction screen, the user inputs the scheduled time to go out, that is, the time (hour, minute) to use the EV 10 and the target power storage amount (kWh). In the charging instruction screen, the user may be requested to input a percentage with respect to the rated capacity (for example, 24 kWh) of the storage battery 11 as the target storage amount.

When the above input via the charging instruction screen is completed by the user and the “Yes” button is pressed (ie, charging start instruction), the user interface unit 200 (instruction detection means) The instruction is detected, and the EV-PCS control unit 203 and the charging information screen generation unit 205 are notified that the charging start instruction has been detected.

Upon receiving this notification, as described above, the EV-PCS control unit 203 instructs the EV-PCS 5 to start charging. In addition, the charging information screen generation unit 205 requests the EV-PCS control unit 203 to acquire the remaining amount of the storage battery 11.

When the charging information screen generation unit 205 receives a notification of the remaining amount of the storage battery 11 from the EV-PCS control unit 203, the charging information screen generation unit 205 estimates a time (charging completion time) when the storage amount of the storage battery 11 reaches the target storage amount specified by the user. To do. Specifically, the charging information screen generation unit 205 includes the remaining amount of the storage battery 11, the maximum power supplied from the commercial power supply 8, and the transition of PV generated power in a predetermined period that is predicted (estimated) in the future. The charging completion time is estimated based on the transition of power consumption in a predetermined period predicted (estimated) in the future in this home.

In the present embodiment, the EV-PCS 5 can change the charging power per unit time in multiple stages according to the power demand in the home. Specifically, the EV-PCS 5 is the total power supplied to the home, that is, the power obtained by subtracting the total power consumption from the total power supplied from the maximum power supplied from the commercial power supply 8 and the generated power ( The storage battery is charged within the range of (maximum power for charging). For example, when the maximum charging capacity of the EV-PCS 5 is 6 kW and the maximum charging power is larger than the maximum charging capacity, the EV-PCS 5 charges the storage battery 11 with the maximum charging capacity. On the other hand, when the maximum charging power is smaller than the maximum charging capacity, for example, when the maximum charging power is 4 kW, the EV-PCS 5 charges the storage battery 11 at 4 kW per unit time.

It is assumed that the maximum power supplied from the commercial power supply 8 is determined by a contract with an electric power company and is stored in the secondary storage device 24 in advance.

The future trend of generated power is determined based on the past trend of generated power. The transition of the past generated power can be obtained from the power DB 240. For example, the transition of the generated power in the future may be determined based on the transition of the generated power on the previous day, or may be determined by calculating the average of the transition of the generated power for the past one week. Further, the transition of the generated power in the future may be determined in consideration of the transition of the past generated power in consideration of the current weather or the weather predicted in the future. Note that the weather information may be acquired by communication from an external server, for example, or a field for inputting information on weather is added to the charging instruction screen in FIG. You may make it obtainable.

In addition, the future transition of power consumption is determined based on the past transition of power consumption. The transition of the past power consumption can be obtained from the power DB 240. For example, the transition of the future power consumption may be determined based on the transition of the previous day's power consumption, the average of the transition of power consumption for the past week, or the transition of the past power consumption on the same day of the week as today You may determine by calculating an average etc. Further, the transition of power consumption in the future may be determined in consideration of the transition of the past power consumption in consideration of the contents of the operation schedule 242.

When the control device 2 has a calendar registration function, the charging information screen generation unit 205 determines the future power consumption transition based on the past power consumption transition and the calendar registration content. .

When the charge completion time estimated as described above is later than the scheduled going-out time (specified time) designated by the user, the charging information screen generating unit 205 stores the amount of charge (remaining amount) of the storage battery 11 at the scheduled going-out time. Is estimated. Then, the charging information screen generation unit 205 calculates an insufficient power amount based on the estimated power storage amount (estimated power storage amount) and the target power storage amount.

Further, the charging information screen generation unit 205 refers to the operation schedule 242 and selects the device 7 that can perform power saving control during the charging period of the storage battery 11. “Power saving control is possible” means that operation (including stoppage) with lower power consumption than that based on the operation state scheduled in the operation schedule 242 is possible.

When all the devices 7 that satisfy the above conditions are selected, the charging information screen generation unit 205 associates the device name, the control content, and the scheduled operation time (scheduled usage time) for each selected device 7. Generate a list of records (device list).

The device name indicates a general name or common name of each device 7 such as “air conditioner”, “floor heating”, and the like. For example, information about each device 7 is displayed on the operation terminal 3. At this time, it is used for the user to recognize which device 7 the device 7 is.

The control content indicates the content of power saving control, for example, “set temperature −1 degree” for an air conditioner during heating, “set temperature +1 degree” for an air conditioner during cooling, and the like. When a plurality of power saving controls are possible for one device 7, a plurality of records with different control contents are registered in the device list for the device 7.

In addition, the charging information screen generation unit 205, for each device 7 shown in the device list, subtracts the power consumption amount during power saving control from the power consumption amount during non-power saving control during the charging period (estimated reduced power consumption). Amount). The power consumption amount (estimated power consumption amount) at the time of non-power saving control and at the time of power saving control is calculated by referring to the power DB 240 and the device DB 241. In addition, when there is no driving | operation track record by applicable control content, the charge information screen generation part 205 calculates an estimated power consumption theoretically from the specification of the said apparatus 7. FIG. In addition, when a plurality of records having different control contents are registered in the apparatus list for the same device 7, an estimated reduction power amount corresponding to each control content is calculated for the device 7. The charging information screen generating unit 205 adds each calculated estimated power reduction amount to a corresponding record in the device list.

The charging information screen generation unit 205 presents to the user charging information including the scheduled time to go out specified by the user, the charging start time, the estimated charging completion time, the calculated insufficient power amount, and the generated device list. To generate a charging information screen. In addition, when the charging completion time is before the scheduled going-out time designated by the user, the insufficient power amount is not calculated. For this reason, the value of the insufficient power amount included in the charging information at that time is “0 (kWh)”.

Further, the above charging start time refers to the time when an instruction to start charging is received from the user via the charging instruction screen shown in FIG. When the charging information screen generation unit 205 generates the charging information screen, the charging information screen generation unit 205 notifies the display instruction unit 206 that the generation of the charging information screen has been completed.

Upon receiving the above notification, the display instruction unit 206 (display instruction unit) instructs the operation terminal 3 to display the charging information screen via the user interface unit 200. An example of the charging information screen displayed on the operation terminal 3 in response to such an instruction is shown in FIG.

As shown in FIG. 6, the charging information screen is provided with a check box corresponding to each record in the device list, and the user can check a desired record, that is, a desired record by checking the check box. Can be selected (see FIG. 7).

When any control pattern is selected by the user via the charging information screen displayed on the operation terminal 3 and the control execution button is pressed, the user interface unit 200 acquires the content of the selected control pattern. To do.

The user interface unit 200 notifies the operation schedule generation unit 204 of the contents of the acquired control pattern. Upon receiving such notification, the driving schedule generation unit 204 updates the driving schedule 242 based on the contents of the control pattern acquired by the user interface unit 200.

When the operation schedule 242 is updated, the charging information screen generation unit 205 estimates the charging completion time again, and if the estimated charging completion time is later than the scheduled going-out time specified by the user, the insufficient power amount is again set. calculate. The charging information screen generation unit 205 updates the charging information screen based on the estimated charging completion time and the calculated insufficient power amount. Then, the charging information screen generation unit 205 notifies the display instruction unit 206 that the charging information screen has been updated.

Upon receiving such notification, the display instruction unit 206 instructs the operation terminal 3 to update the charging information screen via the user interface unit 200. Thereby, the updated charge information screen is displayed on the liquid crystal display of the operation terminal 3 or the like.

FIG. 8 is a flowchart showing the procedure of the charging information display process executed by the control device 2. The charging information display process is started when the user gives an instruction to start charging via the charging instruction screen shown in FIG.

The EV-PCS control unit 203 instructs the EV-PCS 5 to start charging (step S101), and acquires the current storage amount (remaining amount) of the storage battery 11 from the EV-PCS 5 (step S102).

The charging information screen generation unit 205 estimates the charging completion time based on the acquired remaining amount of the storage battery 11 and the demand prediction of power in the home (step S103). When the estimated charging completion time is later than the scheduled going-out time (designated time) designated by the user (step S104; YES), the charging information screen generation unit 205 has insufficient power that is the amount of power that is insufficient at the scheduled going-out time. The amount is calculated (step S105). When the estimated charging completion time is before the scheduled time to go out (step S104; NO), the value of the insufficient power amount is set to “0 (kWh)”.

The charging information screen generation unit 205 selects a device 7 that can perform power saving control during the charging period of the storage battery 11 (step S106), and for each selected device 7, a device name, a control content, a scheduled operation time, A device list composed of records associated with each other is generated (step S108).

The charging information screen generation unit 205 calculates the estimated power reduction amount during the charging period for each record (that is, each control pattern) in the device list, and adds the calculated estimated power reduction amount to the record (step S109).

The charging information screen generation unit 205 generates a charging information screen for presenting charging information including the estimated charging completion time, the calculated insufficient power amount, the generated device list, and the like (step S110). The display instruction unit 206 instructs the operation terminal 3 to display the generated charging information screen via the user interface unit 200 (step S111). Upon receiving such an instruction, the operation terminal 3 displays a charging information screen as shown in FIG. 6 on a liquid crystal display or the like.

As described above, in the energy management system 1 according to the embodiment of the present invention, when an instruction to start charging the storage battery 11 included in the EV 10 is received from the user, the charging information screen is displayed on the operation terminal 3. Since the insufficient power amount of the storage battery 11 at the scheduled time of going out is displayed on this charging information screen, the user can immediately recognize the amount of power that is less than the target power amount at the scheduled time of going out. The user can immediately take power saving measures for increasing the charging power per unit time, that is, for increasing the charging speed.

Also, on the charging information screen, a device list in which the devices 7 capable of power saving control, the contents of the power saving control, and the scheduled use time are displayed is displayed. Thus, the user can easily and accurately save power during the charging period of the storage battery 11. As a result, the charging power per unit time of the storage battery 11 can be increased without impairing comfort and convenience as much as possible, and the target storage amount can be stored in the storage battery 11 by the scheduled time of going out.

Also, since each record in the device list includes the estimated power reduction amount, the user can recognize the effect of power saving control in more detail.

Furthermore, since the user can automatically execute power saving control by selecting a desired record (control pattern) from the device list, the target storage amount can be stored in the storage battery 11 more easily and reliably. It becomes possible.

In addition, this invention is not limited to said embodiment, Of course, the various change in the range which does not deviate from the summary of this invention is possible.

For example, the charging information screen generation unit 205 estimates the amount of electricity stored in the storage battery 11 at the scheduled going-out time even when the charging completion time is before the scheduled going-out time, and the estimated amount of electricity stored (estimated amount of electricity stored) and the target amount of electricity stored The marginal electric energy may be calculated based on the above. This surplus power amount is obtained by subtracting the target power storage amount from the estimated power storage amount. Then, on the charge information screen, the surplus power amount may be displayed instead of the insufficient power amount.

In addition, on the charge information screen, the insufficient power amount and the above-described surplus power amount may be displayed as a percentage with respect to the target power storage amount. Alternatively, on the charging information screen, the state of the amount of power stored in the storage battery 11 at the scheduled time of going out may be represented by an index. In this case, for example, it may be represented by characters “sufficient”, “normal”, “insufficient”, or an icon corresponding to a predetermined index level may be displayed.

Further, the control device 2 may automatically select a control pattern. In this case, as shown in FIG. 9, an automatic selection button is provided on the charging information screen. When the automatic selection button is pressed by the user, the charging information screen generation unit 205 (automatic selection means) selects one or a plurality of control patterns for compensating for the insufficient power amount. The charging information screen generation unit 205 displays the selected result on the operation terminal 3 via the display instruction unit 206 and the user interface unit 200. Thereby, in the charging information screen, a check box corresponding to the control pattern selected by the charging information screen generation unit 205 is in a state where a check is entered. Thus, the convenience of the user is further improved by providing the control pattern automatic selection function.

Further, when generating the device list, the charging information screen generation unit 205 may sort the arrangement of the records in descending order of the estimated power reduction amount.

In the above embodiment, the charging information screen generation unit 205 determines the future power consumption transition based on the past power consumption transition, but is not limited to this method. It may be determined using a pattern model of power usage determined by

In the above embodiment, the user interface unit 200 detects the instruction to start charging when the user completes the input via the charging instruction screen of FIG. 5 and presses the “Yes” button. However, there are various methods for detecting an instruction to start charging. For example, when the control device 2 has a calendar registration function, the user interface unit 200 detects an instruction to start charging by registering an event indicating “going out (using EV)” by the user. Also good.

Further, when the control device 2 receives the instruction to start charging, it is not always necessary to immediately instruct the EV-PCS 5 to start charging. For example, when the time from the time when the instruction to start charging is received to the scheduled time to go out is long, the control device 2 is the time zone (or the electricity price) in which the electricity unit price is the lowest in the time zone until the scheduled time to go out. You may adjust the timing which instruct | indicates a charge start so that the storage battery 11 may be charged in the time zone when cost is the cheapest.

In addition, on the charging information screen, information about devices (non-control devices) that are not under the control of the control device 2 may be displayed. The non-control device is an electric device that is generally used at home regardless of whether it is actually used at home, and is, for example, a dryer, a vacuum cleaner, or the like. In this case, the control device 2 holds in advance information about a standard power consumption amount in a certain usage time (for example, 30 minutes) for a plurality of representative non-control devices, and is applied to the charging information screen. The information is displayed on the operation terminal 3. In this way, the range of power saving measures by the user can be expanded.

Further, the control device 2 may further include an input device for accepting an operation from the user and a display device for presenting information to the user.

In the above embodiment, the case where the control device 2 is installed in the house H has been described. However, a device having a function equivalent to that of the control device 2 may be installed outside the house H.

An example of this case is shown in FIG. In this example, a router 13 is installed in the house H instead of the control device 2. On the other hand, outside the house H, a server 14 that is communicably connected to the router 13 via the Internet is installed. In this case, the router 13 and the server 14 cooperate to play the role of the control device 2.

In the above-described embodiment, one or more programs stored in the secondary storage device 24 are executed by the CPU 20, thereby realizing each functional unit (see FIG. 4) of the control device 2. However, all or part of the functional units of the control device 2 may be realized by dedicated hardware. The dedicated hardware is, for example, a single circuit, a composite circuit, a programmed processor, an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array), or a combination thereof.

In the above embodiment, the program executed by the control device 2 includes a CD-ROM (Compact Disc Read Only Memory), a DVD (Digital Versatile Disc), an MO (Magneto-Optical Disk), a USB memory, a memory card, and the like. It is also possible to store and distribute in a computer-readable recording medium. It is also possible to cause the computer to function as the control device 2 in the above-described embodiment by installing the program on a specific or general-purpose computer.

Further, the above program may be stored in a disk device or the like included in a server device on a communication network such as the Internet, and may be downloaded onto a computer, for example, superimposed on a carrier wave. The above-described processing can also be achieved by starting and executing a program while transferring it via a communication network. Furthermore, the above-described processing can also be achieved by executing all or part of the program on the server device and executing the program while the computer transmits and receives information regarding the processing via the communication network.

Note that when the above functions are realized by sharing an OS (Operating System) or when the functions are realized by cooperation between the OS and an application, only the part other than the OS is stored in the recording medium and distributed. It may also be downloaded to a computer.

The present invention can be variously modified and modified without departing from the spirit and scope of the broad sense. Further, the above-described embodiment is for explaining the present invention, and does not limit the scope of the present invention. That is, the scope of the present invention is shown not by the embodiments but by the claims. Various modifications within the scope of the claims and within the scope of the equivalent invention are considered to be within the scope of the present invention.

The present invention can be suitably employed in a system that manages electric power used in the home.

1, 1A energy management system, 2 control device, 3 operation terminal, 4 power measurement device, 5 EV-PCS, 6 PV-PCS, 7 (7-1, 7-2, ...) equipment, 8 commercial power supply, 9 minutes Power board, 10 EV, 11 storage battery, 12 PV panel, 13 router, 14 server, 20 CPU, 21 communication interface, 22 ROM, 23 RAM, 24 secondary storage device, 25 bus, 200 user interface unit, 201 power value acquisition Unit, 202 device control unit, 203 EV-PCS control unit, 204 operation schedule generation unit, 205 charge information screen generation unit, 206 display instruction unit, 240 power DB, 241 device DB, 242 operation schedule, D1-D6 power line

Claims

A control device that presents charging information regarding charging of a storage battery to a user via a user interface device,
Instruction detecting means for detecting an instruction to start charging the storage battery;
When the instruction is detected, the shortage power amount information obtained based on the estimated power storage amount and the target power storage amount of the storage battery at a specified time, and one or more devices capable of power saving control during a charge period of the storage battery And a display instruction means for instructing the user interface device to display the charging information including a list.
Each record of the list has an estimated reduction power amount obtained by subtracting the estimated power consumption amount during power saving control from the estimated power consumption amount during non-power saving control during the charging period for the device corresponding to the record. The control device according to claim 1, which is included.
Each record of the list includes a control pattern in which a device capable of power saving control is associated with the content of power saving control,
The control device according to claim 1, further comprising: a device control unit that controls a device indicated by a control pattern selected by a user with a control content indicated by the selected control pattern.
The control device according to claim 3, further comprising automatic selection means for selecting at least one control pattern from the list such that an estimated charged amount of the storage battery at the specified time reaches the target charged amount.
The control device according to claim 2, wherein in the list, each record is sorted in descending order of the estimated power reduction amount.
Detecting instructions to start charging the storage battery,
When the instruction is detected, the shortage power amount information obtained based on the estimated power storage amount and the target power storage amount of the storage battery at a specified time, and one or more devices capable of power saving control during a charge period of the storage battery A charging information display method for instructing a user interface device to display charging information including a list.
Computer
Instruction detecting means for detecting an instruction to start charging the storage battery;
When the instruction is detected, the shortage power amount information obtained based on the estimated power storage amount and the target power storage amount of the storage battery at a specified time, and one or more devices capable of power saving control during a charge period of the storage battery A program that functions as a display instruction unit that instructs a user interface device to display charging information including a list.