JP2021107951A - Power supply management system, power supply management method and power supply management program - Google Patents

Abstract

To effectively avoid the occurrence of power peaks in charging facilities.SOLUTION: It is a power supply management system that charges a target power storage device 71 mounted on a vehicle 7 to be supplied, the power supply management system being provided with a charging device 43 for charging the target power storage device 71, a data acquisition unit 12 that records the time, required time, and electric energy when charge was performed to the vehicle 7 for each charging device 43, and changes in the amount of electricity stored in the charged target power storage device 71, a demand forecasting unit 16 predicts the power required for charging for each charging device 43 and a time zone in which charging should be performed based on the information recorded by the data acquisition unit 12, and a power supply control unit 15 that controls power supply to the charging device 43 or charging to the vehicle 7 based on the prediction by the demand prediction unit 16.SELECTED DRAWING: Figure 2

Description

The present invention relates to a power supply management system for charging an EV (Electric Vehicle), a power supply management method, and a power supply management program.

Due to global environmental problems in recent years, EVs (Electric Vehicles) are becoming widespread. In this case, it is essential to develop a charging infrastructure for EVs, and as part of this, in addition to conventional charging stations, charging stations will be installed at convenience stores, supermarkets, shopping centers, and other stores and hospitals, and EVs will be installed. A system for charging the vehicle is being developed.

By the way, the power consumption in the power supply facility changes greatly depending on the environment such as the time zone, the weather, and the season, and the EV charging demand is concentrated depending on the time zone, so that a so-called power peak occurs. Generally, the electricity charge is calculated from the basic charge and the electric energy charge according to the contract with the electric power company. Since this basic charge is determined based on the maximum value (maximum demand) of the integrated power consumption value for the entire facility for each predetermined demand time, power consumption exceeding the peak cut level (target value) is expected. At that time, it is necessary to avoid the peak of power consumption, that is, the occurrence of the power peak.

Japanese Unexamined Patent Publication No. 2014-21265

However, in a power supply facility where an unspecified number of EVs come and go, it is difficult to predict behavior or stay of EVs, which are so-called moving storage batteries, and it is difficult to use them as adjustment power. There was a risk that it would occur.

Therefore, the present invention has been made to solve the above-mentioned conventional technical problems, and is an EV power supply management system, a power supply management method, and a power supply management program that can effectively avoid the occurrence of a power peak in a charging facility. The purpose is to provide.

In order to solve the above problems, the present invention is a power supply management system for charging a target power storage device mounted on a target vehicle to be supplied, and the charging device for charging the target power storage device and each charging device. In addition, a data acquisition unit that records the time, required time, and electric energy of charging the target vehicle, and changes in the amount of electricity stored in the charged target power storage device, and a charging device based on the information recorded by the data acquisition unit. It includes a demand prediction unit that predicts the power required for each charge and a time zone in which charging should be performed, and a power supply control unit that controls power supply to the charging device or charging to the target vehicle based on the prediction by the demand prediction unit.

Further, the present invention is a power supply management method for charging the target power storage device mounted on the target vehicle to be supplied, and the time when the target vehicle is charged for each target power storage device to be charged. Based on the data acquisition step in which the data acquisition unit records changes in the required time and electric energy, and the amount of electricity stored in the charged target power storage device, and the information recorded by the data acquisition unit, the demand forecasting unit performs each charging device. A demand forecast step that predicts the power required for charging and a time zone in which charging should be performed, and a power supply control step in which the power supply control unit controls power supply to the charging device or charging to the target vehicle based on the prediction by the demand forecast unit. To be equipped.

In the above invention, it is preferable that the power supply control unit controls the power supply or the charge amount by forming a reduction period in which the power supply amount is intermittently reduced during charging. Further, in the above invention, it is preferable that the data acquisition unit collects the operation schedule of each vehicle and the demand forecast unit makes a prediction based on the collected operation schedule. Further, in the above invention, the operation schedule holds information on the departure place, departure time, destination and arrival time of the sharing vehicle shared and used by a plurality of users, and the demand forecasting unit is based on the operation schedule. Therefore, it is preferable to specify a charging device suitable for charging and predict the power required for charging and the time zone for charging in the specified charging device.

The power supply management system and power supply management method according to the present invention described above can be realized by executing the power supply management program of the present invention described in a predetermined language on a computer. That is, the power supply management program of the present invention is installed on a mobile terminal device, a smartphone, a wearable terminal, a mobile PC or other information processing terminal, an IC chip of a general-purpose computer such as a personal computer or a server computer, or a memory device, and executed on the CPU. By doing so, it is possible to construct a power supply management system having each of the above-mentioned functions and implement the power supply management method according to the present invention.

Further, the power supply management program of the present invention can be distributed through a communication line, for example, and can be transferred as a package application that operates on a stand-alone computer by recording on a recording medium that can be read by a computer. can do. Specifically, the recording medium can be recorded on various recording media such as a magnetic recording medium such as a flexible disk or a cassette tape, an optical disc such as a CD-ROM or a DVD-ROM, or a RAM card. Then, according to the computer-readable recording medium on which this program is recorded, the above-mentioned system and method can be easily implemented by using a general-purpose computer or a dedicated computer, and the program can be stored, transported, and stored. Installation can be done easily.

As described above, according to the present invention, in order to predict the stay of EV by learning from the past results of power supply (day, time zone, free charge capacity, charging time, etc.) for each charging device, each charging device unit. Even if it is difficult to predict individual behavior and stay, the stay prediction can be predicted with accuracy, and a short reduction period can be set to perform so-called power supply slicing. be able to. As a result, the stay prediction slices of a plurality of EVs can be bundled and managed as an adjustable amount, and the EV can be used as a power adjusting force to perform power control such as peak cut.

It is a conceptual diagram which shows the whole structure of the power supply system which concerns on embodiment. It is a block diagram which shows the internal structure of each apparatus of the power supply system which concerns on embodiment. It is a block diagram which shows the internal structure of a power management apparatus. It is a flow chart of the power supply processing which concerns on embodiment. It is a flow chart of the predicted value calculation process in the power supply process which concerns on embodiment. It is a graph which shows the predicted value calculation process which concerns on embodiment. It is a conceptual diagram which shows the whole structure of the power supply system which concerns on the modification. It is a block diagram which shows the internal structure of the in-vehicle device of the power supply system which concerns on the modification. It is a block diagram which shows the internal structure of the vehicle management server of the power supply system which concerns on the modification. It is a sequence diagram which shows the operation at the time of setting a return destination in the power supply system which concerns on a modification example. It is a block diagram which shows the internal structure of the intermediary server which concerns on embodiment. It is a block diagram which shows the internal structure of the guarantee system which concerns on embodiment. It is a flow chart which shows the procedure at the time of power transfer of the power supply system which concerns on embodiment. It is explanatory drawing which illustrates the relationship between the public key and the private key in the power supply system which concerns on embodiment. It is explanatory drawing about the blockchain of the power supply system which concerns on embodiment.

Hereinafter, an embodiment of a power supply system, a power supply method, and a power supply program according to the present invention will be described. In the following description, the same or equivalent parts and components are designated by the same or equivalent reference numerals throughout the drawings. The embodiments shown below exemplify an apparatus or the like for embodying the technical idea of the present invention, and the technical idea of the present invention describes the material, shape, structure, and the like of each component. It does not specify the arrangement etc. to the following. The technical idea of the present invention can be modified in various ways within the scope of claims.

(Overall configuration of power supply system)
FIG. 1 is a block diagram showing the overall configuration of the power supply system according to the present embodiment, and FIG. 2 is a block diagram showing the internal configuration of each device of the power supply system. As shown in the figure, the power supply system according to the present embodiment is from a plurality of charging devices 43 used for charging the target power storage device 71 mounted on the vehicle 7 to be charged, and a power supply source 3. It is roughly composed of a distribution power supply device 2 capable of distributing electric power to a plurality of charging devices 43, and a charging station 4 providing a charging service.

Power supply sources 3 include power generation facilities that use renewable energy such as solar power generation and wind power generation, power plants such as thermal power, hydraulic power, and nuclear power, PPS (Power Producer and Supplier: new power companies), and households. Includes power producers or aggregators that sell or procure power produced in. The power from the power supply source 3 is once input to the distribution power supply device 2, and the input power is distributed to each power supply facility such as the charging station 4 by the distribution power supply device 2.

The charging station 4 is a facility or business operator that provides a charging service, and is installed in a private house, a store such as a convenience store, a supermarket, a shopping center, or a facility such as a hospital, in addition to a conventional charging station. included. The charging station is provided with a power control terminal 40 that controls electric power. The power control terminal 40 is composed of, for example, an information processing terminal equipped with a CPU, and controls each facility of the charging station in an integrated manner. It is a device to process. The target equipment controlled by the power control terminal 40 includes a smart meter 41, a storage battery 42, a charging device 43, etc. included in the charging station 4 provided in the charging station 4, as well as power generation, storage, and electric power as needed. Includes equipment to control consumption. The various devices controlled by the power control terminal 40 can be omitted if necessary.

(Configuration of each device)
(1) Vehicle 7
The vehicle 7 is a passenger vehicle such as an EV, a hybrid vehicle (HV), a plug-in hybrid vehicle (PHV), or the like. Specifically, the vehicle 7 includes a target power storage device 71, a charger 72, a vehicle control unit 73, and a target vehicle communication unit 74 as components related to the power supply system. The charger 72 is a device that is connected to the target power storage device 71 and converts the charging power supplied from the charging device 43 into electric power suitable for charging, and is a wireless or wired communication device that communicates with the charging device 43. Is. Further, the vehicle control unit 73 is a control device that controls the charger 72 and the target vehicle communication unit 74.

The specific configuration of the charger 72 is arbitrary, but in a configuration in which AC power is supplied to the vehicle 7 as charging power from the charging device 43, for example, the charger 72 converts the AC power into DC power. A function as an AC / DC converter for conversion can be provided.

(2) Charging device 43
The charging device 43 will be described. The charging device 43 is a device with a gun installed in a charging station that provides a charging service, and is a device that charges the communication network 10 by being electrically connected to the vehicle 7. It includes a power supply switch 43a, a charging device control unit 43b, a charging device notification unit 43c, and a charging device communication unit 43d.

The power supply switch 43a is a switching device provided on the power line from the distribution power supply device 2 to the vehicle 7 to turn on / off the power supply, and the charging device control unit 43b controls to control ON / OFF of the power supply switch 43a. It is a device. The charging device control unit 43b controls whether or not to transmit the charging power supplied from the distribution power supply device 2 to the vehicle 7 by controlling the power supply switch 43a ON / OFF. In the initial state, the power supply switch 43a is in an OFF state in which power transmission from the distribution power supply device 2 to the vehicle 7 is cut off. In the present embodiment, the charging power is distributed from the distribution power supply device 2 to the charging device 43 when the charging device 43 and the distribution power supply device 2 are connected and the power supply switch 43a is in the ON state. Corresponds to the state of being. On the other hand, when the charging device 43 and the distribution power supply device 2 are connected and the power supply switch 43a is in the OFF state, the charging power is not distributed from the distribution power supply device 2 to the charging device 43. ..

The charging device communication unit 43d is a wired or wireless communication device capable of communicating with the target vehicle communication unit 74. The charging device control unit 43b and the vehicle control unit 73 can exchange information through communication between the charging device communication unit 43d and the target vehicle communication unit 74. The charging device notification unit 43c is an output interface for performing various notifications. For example, a monitor, a voice speaker, or the like can be used, and information on charging is notified by a monitor display or voice output.

(3) Distribution power supply device 2
Next, the distribution power supply device 2 will be described. As shown in FIG. 1, the distribution power supply device 2 includes a power conversion unit 21, a distribution power supply device control unit 22, a distribution power supply device communication unit 23, and a position information acquisition unit 24. And a wireless communication unit 25, and a distribution power supply device notification unit 26.

The power conversion unit 21 is a device that converts the power supplied from the power supply source 3 into AC power as charging power used for charging the vehicle 7. The distribution power supply device 2 is connected to a plurality of charging devices 43, and distributes the AC power converted by the power conversion unit 21 to each charging device 43.

The distribution power supply device communication unit 23 is a communication device capable of communicating with both the vehicle 7 and the charging device communication unit 43d. The distribution power supply device control unit 22 can exchange information with the charging device control unit 43b on the charging device 43 side via communication between the distribution power supply device communication unit 23 and the charging device communication unit 43d.

Further, the position information acquisition unit 24 is a module that acquires information on the current position, and has, for example, a GPS (Global Positioning System.) Function, and acquires its own current position. The wireless communication unit 25 is a wireless communication device that performs wireless communication, and the distribution power supply control unit 22 can access the Internet, a server, or the like via wireless communication by the wireless communication unit 25 to perform various distributions. It has become. The distribution power supply device notification unit 26 is an output device that performs various notifications, for example, a monitor, a voice speaker, or the like, and notifies information or the like regarding power supply. The distribution power supply device control unit 22 monitors the connection state of the distribution power supply device 2 and the plurality of charging devices 43, and is established between the distribution power supply device communication unit 23 and the charging device communication unit 43d and the charging device communication unit 43d. The communication or the wireless communication unit 25 is used to perform power supply possible distribution indicating that power can be supplied together with the position information.

Specifically, when the vehicle 7 is connected, the charging device control unit 43b transmits a new connection confirmation signal confirming the new connection to the distribution power supply device control unit 22 by using the charging device communication unit 43d. For example, the charging device control unit 43b of a certain charging device 43 uses the charging device communication unit 43d to distribute a new connection confirmation signal to the charging device control unit 22 (based on the fact that the vehicle 7 is connected to the charging device 43. Details are transmitted to the distribution power supply communication unit 23). Then, the distribution power supply device control unit 22 grasps the uncharged vehicle by receiving the new connection confirmation signal by the distribution power supply device communication unit 23. The distribution power supply control unit 22 executes a charging start control process for starting charging of the newly connected vehicle 7 (that is, the uncharged vehicle) based on the fact that the uncharged vehicle is grasped.

(4) Power management device 1
As shown in FIG. 3, the power management device 1 is a server device that manages power supply in a large number of charging stations 4 in order to charge the target power storage device mounted on the vehicle 7 to be supplied. Specifically, it includes a communication interface 11, a data acquisition unit 12, a database 13, a control instruction schedule management unit 14, a power supply control unit 15, a demand forecast unit 16, and a performance information analysis unit 17. ..

The communication interface 11 is a device for performing data communication, and has a function of performing non-contact communication by wireless or the like, or contact (wired) communication by a cable, an adapter means, or the like.

The data acquisition unit 12 is a module that records, for each charging device 43, the time when the vehicle 7 is charged, the required time and the amount of electric power, and the change in the amount of electricity stored in the charged target power storage device 71. It is a module that acquires and monitors the power supply status of the device 43 and inputs the current status to the control instruction schedule management unit 14. The power supply status acquired by the data acquisition unit 12 is provided for the demand forecast by the demand forecast unit 16.

The data acquisition unit 12 may be provided with a function of collecting the operation schedule of each vehicle as external information, such as a vehicle management server of a rental car or a car sharing service, as will be described later. In addition, the data acquisition unit 12 also has a function of collecting power source information regarding the power supply source 3, and the power source information includes the market price of power at the time when power is received or stored at each power source in a predetermined time unit. , The amount of power received or stored, and information about the stored power storage equipment. The information at the time of electricity storage (including the information at the time of receiving power) collected by the data acquisition unit 12 is stored in the database 13 and input to the performance information analysis unit 17 and the control instruction schedule management unit 14.

The data acquisition unit 12 also has a market information collection function that collects external information (price fluctuations in the electricity market, weather information, other external environmental information, etc.) from external information sources distributed on the Internet. .. This market information collection function patrols external information sources on the Internet by so-called crawling processing and collects predetermined information on a regular basis. It also searches for information sources on communication networks by related keywords, and sudden news and sudden news Meteorological changes are also collected and accumulated as big data.

The control instruction schedule management unit 14 is a module that manages control schedules such as general power supply service, power generation service, power procurement, charge / discharge in power storage equipment, distributed power supply, and power adjustment (balancing) by planning a reduction period. be. The current power supply status input from the data acquisition unit 12 and external information (price fluctuations in the electric power market, weather information, other external environmental information, etc.) are input to the control instruction schedule management unit 14, and these information are input. Based on the power supply and demand predicted by the demand forecasting unit 16, power distribution to each charging station 4, charging / discharging in the power storage facility, power adjustment such as planning a reduction period, and other power procurement schedules are created and managed. do. Here, the power adjustment according to the reduction period is a process of adjusting the power supply or the charge amount by forming a reduction period in which the power supply amount is intermittently reduced during charging.

The power supply control unit 15 is a module that controls power supply to the charging device 43 or charging to the vehicle 7 according to a control schedule based on the prediction by the demand forecasting unit 16. The power supply control unit 15 controls the drive of the charging device 43 of each charging station 4 according to the control by the control instruction schedule management unit 14.

The performance information analysis unit 17 is a module that calculates the amount of power consumed in each station by acquiring and analyzing the performance data from the smart meter 41 provided in each charging station 4, and this performance information analysis The analysis result by the unit 17 is input to the demand forecasting unit 16 and used for generating the control schedule.

The demand forecasting unit 16 is a module that predicts the power required for charging for each charging device 43 and the time zone for charging based on the information recorded by the data acquisition unit 12, and specifically, the demand forecasting unit 16 is a past. Analyze the correlation between the supply and demand of electricity and external information, and predict the supply and demand of electricity that will occur in the future. This prediction targets external information collected by the data acquisition unit 12 and past changes in power demand as big data, and is being analyzed using AI (artificial intelligence) machine learning functions such as deep learning. The feature points are accumulated, the correlation (trend) between each information is extracted based on the commonality of the feature points, and the future power demand is predicted from the commonality of the feature points that match the current market condition information.

(Configuration of power trading system at power supply source)
In the present embodiment, in the power supply source 3 described above, among the power generated by a solar power plant, a wind power plant, a power processor, or a consumer equipped with other power generation facilities, the surplus power that can be sold Therefore, it is possible to issue tokens according to the power system and the amount of power, and trade power as tokens. This token is accumulated in various token pools of the token trading platform, and can be used for token trading, settled for cash, cash back, and the like.

More specifically, a power transaction token is issued for surplus power that can be sold according to the amount of power generated, and together with this power transaction token, the value of each power generation method and storage method according to the degree of contribution to the environment. An environmental value token, which is information, is issued. The environmental value token is a token that is calculated and issued according to the degree of contribution to the environment, such as the amount of electric power consumed by oneself and the amount of CO _{2 reduction.} In addition to the electric power transaction tokens, environmental value tokens, which are value information according to the degree of contribution of each electric power generation method and storage method to the environment, are generated, and the economy is achieved by controlling the electric power demand (DR control). A DR control token, which is value information as consideration for generating surplus power according to the effect, is generated.

The environmental value token is a token that is calculated and issued according to the degree of contribution to the environment, such as the amount of electricity consumed by the self-consumption and the amount of CO _{2 reduction.} It cannot be traded and cannot be exchanged for cash. This environmental value token is canceled at the time of transfer, a transfer history recording the transaction history in which the fact of the transfer is described is issued, and the issued transfer history is subject to the transfer transaction. The transfer history of the canceled environmental value tokens is tamper-proofly recorded on the blockchain, which is a guarantee system, via the token trading platform.

In particular, in the present embodiment, as one of the evaluation methods of this environmental value token, power generation having a high degree of contribution to the environment is based on the method of generated power and the type of power generation or storage related to the consumed or stored power. When electricity by type is stored in a storage type that has a high degree of contribution to the environment, its value is increased. In the example shown in FIG. 1, the electric power generated by reusable energy such as solar power generation is stored in a battery for an electric vehicle such as an EV truck of a carrier, and when it is consumed, the reusable energy contributes to the environment. And, since it has a synergistic effect with the environmental contribution by using an electric vehicle, processing such as granting an environmental value token or increasing its value is performed as its evaluation.

The power transaction tokens, environmental value tokens, and DR control tokens issued in this way are given to solar power plants, wind power plants, business establishments that have implemented DR control, etc., and are settled for cash or cash back. Since it can be used, energy management by each consumer becomes easy, and optimal planned charge control such as peak cut becomes possible.

In the present embodiment, a service for mediating an electric power trading transaction using a token is provided through an electric power transaction system constructed on the communication network 10. When the power supply amount is adjusted through the power supply system described above, the transaction of the electric power related to the power supply is performed through this power supply trading system. Specifically, in this electric power trading service, the token trading platform is accessed through the electric power control terminals provided by each facility (power plant, consumer, aggregator, etc.) to buy and sell electric power. At the time of this electric power sales transaction, in addition to the electric power transaction token which is the electric power value information, the DR control token and the environmental value token which are the value information related to DR (Demand Respons: electric power demand) control and the environmental value are issued. These tokens are exchanged between the seller and the buyer to conclude a transaction for buying and selling electricity and its added value.

For these tokens, a power trading token is issued according to the amount of power generated and the power generation method, and the power that can be sold is accumulated in the power trading token pool of the token trading platform as a power trading token equivalent to the power. It is bought and sold through these token pools. Finally, this electric power trading token is purchased by consumers as a right to use (consume) electric power, and the purchased electric power can be used by the purchased consumers, etc., and actually electric power is equivalent to the electric power trading token. By consuming, the power trading token equivalent to the consumed power is canceled. The value of this electric power trading token fluctuates depending on the supply and demand balance of trading transactions on the token trading platform. When power is generated, the power transaction token is associated with information on the origin of power generation, power generation method, power generation location, power generation time, etc., and as additional information, environmental value tokens derived from the power transaction token, etc. Related token information, transaction history including transfer history due to buying and selling, etc. are also associated and held. Each accumulated token can be bought and sold as an independent virtual currency.

In addition to the power transaction tokens for the generated power, environmental value tokens, which are value information according to the degree of contribution of each power generation method and storage method to the environment, are generated, and power demand control (DR control) is performed. A DR control token, which is value information as consideration for generating surplus power according to the economic effect of implementation, is generated. The environmental value token is a token that is calculated and issued according to the degree of contribution to the environment, such as the amount of electric power consumed by oneself and the amount of CO _{2 reduction.} This environmental value token cannot be targeted for market transactions and cannot be redeemed as it is. This environmental value token is canceled at the time of transfer, the date and time when the transfer was executed, the transfer source (owner ID) and the transfer destination (new owner ID), the value at the time of transfer (compensation amount), A transfer history that records other transaction histories is issued, and the issued transfer history is subject to transfer transactions. In the transfer history of the environmental value token, the value and the issuer of the canceled environmental value token are recorded, and the transfer destination by the transfer transaction is added as the transaction history every time the transfer is made. Here, the cancellation of a token refers to a process of losing the exchange value as a currency, such as setting the value to 0 or erasing or unknown the private key and storing it in an account that makes it impossible to rewrite the owner. Then, the transfer history of the canceled environmental token is recorded in the blockchain, which is a guarantee system, without being tampered with via the token trading platform.

In addition, as one of the evaluation methods of this environmental value token, based on the method of generated power and the type of power generation or storage related to the consumed or stored power, the power according to the power generation type having a high degree of contribution to the environment is used. It is possible to increase the value of electricity when it is stored by a type of electricity that contributes to the environment. For example, when electricity generated by reusable energy such as solar power is stored in a battery for an electric vehicle such as an EV truck and consumed, the reusable energy contributes to the environment and the use of the electric vehicle contributes to the environment. By doing so, it is possible to give an environmental value token as its evaluation, increase its value, and so on. The degree of contribution to the environment (CO ₂ reduction amount and self-consumption amount) is retained in the token as origin information and other related information, and the token management database 81a of the intermediary server 8 and each node of the blockchain interface 9 are stored. Is held in.

In addition, as for environmental value tokens, by providing financial resources such as donations to the token trading platform, the amount equivalent to the amount of the financial resources can be converted into transferable renewable energy tokens. For example, when a company or the like makes a donation to promote the spread of renewable energy, of the environmental value tokens accumulated in the environmental value token pool of the token trading platform, the amount equivalent to the donation amount is used as a renewable energy token. At the same time as converting, the converted environmental value token is canceled. This renewable energy token can be permanently traded as a virtual currency having a value equivalent to financial resources such as distributed donations. The value of this renewable energy token fluctuates depending on the supply and demand balance of trading transactions on the token trading platform.

For the DR control token, for example, by analyzing the actual data, the actual value of controlling the electric power for a certain period of time is calculated, and the consideration amount is determined. In addition, we calculated the actual value of avoiding peak power consumption (peak cut) over a certain period of time, and when the peak power fell below the maximum power set at the beginning of the month in which the peak cut was avoided, we paid too much electricity. Therefore, the amount of consideration for the DR control token may be determined by using the overpaid electricity charge as the economic effect. Information about this is held in the token, and is also held in the token management database 21a of the intermediary server 8 and each node of the blockchain interface. By issuing this DR control token to a company or the like that has implemented DR control, it is possible to cash back the electricity charges for power saving. In addition, the DR control token can be permanently traded as a virtual currency having a value equivalent to the overpaid electricity charge. The value of this DR control token also fluctuates depending on the supply and demand balance of trading transactions on the token trading platform.

For example, a power plant, a power prosumer, a consumer equipped with a power generation facility, or an aggregator that brings together these consumers provides power and obtains a power trading token according to the amount of power generated. At this time, environmental value tokens and DR control tokens are also acquired according to the degree of contribution to the environment by the power generation method and power generation time (season or time zone) of the electric power, and the economic effect of DR control. Then, the acquired various tokens can be redeemed by settlement, and by pooling them in each token pool, they can be sold to others and the consideration can be received. The aggregator is a business operator that bundles and aggregates the electric power demand of consumers and effectively provides energy management services, and controls the balance between the electric power company and the consumer so-called electric power supply and demand. Perform DR control. The aggregator can acquire the DR control token by implementing the DR control, and can settle and cash it or accumulate it in the token pool to carry out a trading transaction.

On the other hand, the electric power supplied from the consumer equipped with the power plant, the electric power processor, and the power generation facility is supplied to the consumer by purchasing the electric power transaction token by the consumer who is the demand destination. This electric power can be supplied via PPS (Power Producer and Supplier) or the like. As the purchased electricity is consumed by each consumer, the electricity trading token used for the purchase is incinerated. On the other hand, each token accumulated in each token pool can be traded with aggregators, PPS, consumers, companies and other trading markets through the blockchain interface service as an independent virtual currency. In this case as well, various tokens can be redeemed for cash, sold to others, and the consideration can be received. If the token is a power trading token, it is linked to the power trading token. It is possible to receive power supply from the power supply source.

In the electric power trading system, electric power control terminals provided in each facility (power plant, PPS, consumer, electric power processor, etc.) of the intermediary server 8 providing the token trading platform and the electric power supply source 3 are connected to each other by the communication network 10. It is composed of. Further, on the communication network 10, a guarantee system 9 that provides a blockchain interface service that guarantees electric power transactions is provided.

The power control terminal is composed of, for example, an information processing terminal equipped with a CPU, and is a device that comprehensively controls the equipment of each facility such as a power plant, each consumer, a PPS, a power prosumer, and an aggregator. The target equipment controlled by this power control terminal includes power generation, storage, and power such as smart meters, storage batteries, and PV (photovoltaics) included in user systems installed in facilities such as consumers and power prosumers. Includes equipment to control consumption. The various devices controlled by the power control terminal can be omitted if necessary. For example, in consumers, the power consumption is measured by a smart meter, but some consumers have power generation equipment and power storage equipment, some have either power generation equipment or power storage equipment, or power generation / Some are equipped with only smart meters without any power storage equipment and consume only power. In addition, although the electric power prosumer is also in a position to consume electric power, it is equipped with solar power generation and a storage battery and can be located on the side of supplying electric power.

The intermediary server 8 is a content server device that mediates the transaction of electric power by the electric power selling side and the electric power purchasing side via the electric power control terminal. This intermediary server 8 provides an intermediary website online as a token transaction platform, and various token transaction intermediary services are provided to the selling side, the power buying side, other markets and companies through the intermediary website. Is provided.

Then, by accessing the intermediary server 8 from the power control terminal, it is possible to use various token transaction services according to power generation, storage, and power consumption in each facility or equipment. In this token transaction service, for example, as shown in FIG. 15, the seller Ua manages the issuance and sale of tokens, and the buyer Ub, which consumes electricity, manages the purchase and cancellation of tokens. More specifically, the power control terminal cooperates with the intermediary server 8 to generate power generation data, power storage data, and consumption data based on power generation, storage, and power consumption in each facility, and various tokens in which information on the power is described. Issuance, sale and cancellation. The information described in each of the various tokens and the history of issuance / sale / cancellation of the token are stored in the distributed ledger system in a state in which they cannot be tampered with through the blockchain interface service provided by the guarantee system 9.

In addition, tokens that can be traded on the token trading platform can be exchanged equivalently to each other at a value determined by the supply-demand balance of trading transactions on the token trading platform, and various tokens can be settled in the actual currency. In addition, it can be converted into virtual currency, points, and other value information with exchange value.

(5) Each device of the electric power trading system (5-1) User system The user system is a general electric power facility owned by each consumer or electric power processor, and is also a unit for consuming electric power, and may be equipped with electric power generation and storage equipment. be. Examples of power generation equipment include solar power generation and wind power generation. The user system 20 includes a power control terminal as a power trading unit and a smart meter 41 as a performance data generation unit.

The power control terminal installed in each user system is an information processing terminal equipped with a communication function and a CPU, and various functions can be implemented by installing an OS, firmware, and various application software. By installing and running the application, it functions as a power trading department. The information processing terminal for the agent can be realized by, for example, a smartphone or a dedicated device having a specialized function in addition to a personal computer, and includes a tablet PC, a mobile computer, and a mobile phone.

(5-2) Configuration of Intermediary Server 8 The intermediary server 8 is a server device managed and operated by a provider of an electric power transaction intermediary service, and a user who wishes to buy and sell electric power accesses the intermediary server 8 through a communication network 10. However, transactions related to electric power can be executed through the token trading platform provided by the intermediary server 8. Specifically, as shown in FIG. 11, the intermediary server 8 includes a communication interface 83, an authentication unit 82, a power transaction execution unit 85, a token management database 81a, a user database 81b, a performance management database 81c, and power. It includes a transaction management database 81d, a token management unit 84, a performance data management unit 86, and a settlement unit 87.

The communication interface 83 is a module that transmits / receives data to / from other communication devices through the communication network 10. In the present embodiment, each power control terminal, smart meter 41, and guarantee system 9 are used to provide this service. It is connected.

The authentication unit 82 is a computer that verifies the legitimacy of the accessor involved in the power transaction or software having the function thereof, and executes the authentication process based on the user ID that identifies the user. In the present embodiment, the user ID and password are acquired from the terminal device of the accessor through the communication network 10, and the user database 81b is collated to determine whether the accessor has the right or not, and the accessor himself / herself. Check if there is any.

The electric power transaction execution unit 85 is a module that mediates electric power transactions through the communication network 10. In the present embodiment, the electric power transaction execution unit 85 includes a contract data generation unit 85a and a guarantee system cooperation unit 85b.

The contract data generation unit 85a generates contract data D1 of a transaction established based on the sale data D21 and the purchase data D22. More specifically, the electric power transaction execution unit 85 collates the sale data D21 and the purchase data D22, which are the demand condition of the buyer Ub and the supplyable condition of the seller Ua, and concludes the transaction by matching the corresponding combinations. , As shown in FIG. 16, generates contract data D1 that describes information such as a supply source, a power generation method, a supply available time, and a power price, which are demand conditions and supply availability conditions of a successful transaction.

The guarantee system cooperation unit 85b requests the guarantee system 9 on the network to perform the processing necessary for the power transaction, such as credit related to the power transaction, security management, and storage of transaction records, and cooperates with the guarantee system 9. It is a module that advances processing. The electric power transaction execution unit 85 manages the exchange of various tokens by coordinating with the guarantee system 9 through the guarantee system cooperation unit 85b, adds a public address regarding the token acquirer, and is certified by each token. Transfer each ownership by changing the owner of each right.

The token management unit 84 is a module that executes and manages generation (issue), transfer, and cancellation of various tokens, and issues, transfers, or cancels various tokens in cooperation with the guarantee system cooperation unit 85b of the power transaction execution unit 85. Update the data in various tokens to execute. Specifically, the token management unit 84 includes a token issuing unit 84a, a token canceling unit 84b, and a token transfer unit 84c.

The token issuing unit 84a is a module that issues various coin tokens to the user in response to the user's request. For example, based on actual data, a power transaction token is issued to a user who has electric power that can be sold by a power generation facility, or by analyzing the actual data, it is derived from the electric power transaction token of the generated electric power. According to the economic effect of generating environmental value tokens, which are value information according to the degree of contribution of each electric power generation method and power storage method to the environment, and controlling the electric power demand (DR control). Generate a DR control token that is value information.

In the present embodiment, the token issuing unit 84a issues an environmental value token based on the amount _{of CO 2 reduction by the power generation method included in the actual data or the amount of self-consumption.} For example, if the power generation method included in the actual data is reusable energy such as solar power generation or wind power generation, the token issuing unit 84a is reduced by the amount of power generated by the power generation method and the power generation method. that a list of correspondence between the amount of CO ₂ was CO ₂ holds the reduced table data, with reference to the CO ₂ reduction table data based on the power generation amount contained in the actual data, Ya value of environmental value token Determine the quantity and issue environmental value tokens of the determined value or quantity. The issued environmental value tokens are accumulated in the environmental value token pool as owned by the generator included in the actual data.

Further, for example, the token issuing unit 84a indicates that the power generation method included in the actual data is based on reusable energy such as solar power generation or wind power generation, and the power is consumed in-house. _{It holds self-consumption table data that lists the correspondence between the amount of CO 2} reduced by self-consumption and the energy lost due to power transmission and distribution, and self-consumption table data based on the self-consumption included in the actual data. With reference, the value and quantity of the environmental value token are determined, and the environmental value token of the determined value or quantity is issued. The issued environmental value tokens are accumulated in the environmental value token pool as owned by the self-consumed user included in the actual data.

Further, the token issuing unit 84a according to the present embodiment acquires the donation amount, converts the amount corresponding to the acquired amount of the environmental value token into a tradable renewable energy token, and the converted amount. It also functions as a renewable energy token issuer that cancels the environmental value tokens of. Specifically, the amount of donations and the power generation method to be donated are input to the token issuing unit 84a as search conditions, and the environmental value tokens of the power generation method corresponding to these search conditions are token-managed. Search the environmental value token pool in database 81a. Then, the token issuing unit 84a extracts the corresponding environmental value token, distributes the input donation amount by the amount of the corresponding environmental value token, and distributes the environmental value token of the value corresponding to the distributed amount. Converted to a renewable energy token, the converted renewable energy token is issued as the owner of the original environmental value token, and the issued renewable energy token is owned by the user who is the owner of the original environmental value token. Accumulated in the token pool.

The token cancellation unit 84b is a module for canceling the electric power transaction token or canceling the environmental value token related to the transfer request based on the actual data D3. Here, the cancellation of a token refers to a process of losing the exchange value as a currency, such as setting the value to 0 or erasing or unknown the private key and storing it in an account that makes it impossible to rewrite the owner.

The token transfer unit 84c is a module that controls the transfer of tokens by rewriting the ownership of each token, and in the present embodiment, the blockchain interface service is used for this rewriting. The transfer of this token is carried out on the basis of a transfer request directing the transfer. This transfer request is data that is input from the power transaction execution unit 85 when the sale and purchase of tokens is completed in, for example, the power transaction execution unit 85, or is directly input from the power control terminal by each user's operation. Includes the type of target token, account information about the transfer source and transfer destination, and the quantity.

In particular, when the input transfer request requests the transfer of the electric power transaction token or the environmental value token, the token transfer unit 84c uses the electric power transaction token related to the request when the target of the transfer request is the electric power transaction token. When the transfer is made and the target of the transfer request is the environmental value token, the token cancellation unit 84b is made to cancel the environmental value token related to the request, and the transfer information included in the transfer request related to the canceled environmental value token is generated as the transfer history. It has a function. The transfer history of the canceled environmental tokens is tamper-proofly recorded on the blockchain, which is a guarantee system, via the token trading platform.

The token management database 81a is a storage device that stores information on tokens that have been issued or canceled, and stores the owner of each token, its type, and its value or quantity in association with each other. Various tokens are classified and accumulated as an electric power transaction token pool, an environmental value token pool, a DR control token pool, and a renewable energy token pool according to their types. In addition, related information such as transaction history related to each token is also recorded in association with each token. For example, the transfer history issued when the environmental value token is transferred is also recorded in association with the conversion source environmental value token whose value is set to 0 after being transferred.

The user database 81b is a storage device that stores information about users of each consumer and traders such as aggregators. In the present embodiment, the personal information that identifies the user is not stored in the user database 81b, and only the public account information that identifies each resident / user is stored. The credit information required for electric power transactions is evaluated by requesting the guarantee system 9 for credit regarding the public account belonging to each resident and responding to it.

The performance management database 81c is a storage device that collects, accumulates, and manages performance data by persons involved in the transfer of electric power, such as power plants, consumers, and aggregators. Each performance data received from each smart meter is accumulated in this performance management database and used for token issuance, cancellation, and value evaluation. The electric power transaction management database 81d is a storage device for recording the transaction record of tokens.

At least a part of the data stored in each of the databases 81a to 81d is recorded in the guarantee system 9 through the guarantee system cooperation unit 85b. The guarantee system 9 aggregates at least a part of the data accumulated in each of the databases 81a to 81d at a node to block them at a predetermined timing, forms a blockchain using the blocks, and forms a blockchain, and a plurality of the blockchains are formed. Share it with nodes and store it as a distributed ledger.

The actual data management unit 86 is a module that calculates the type and quantity of tokens to be issued by collecting and analyzing the actual data from each user system, and the analysis result by the actual data management unit 86 is token management. It is input to the part 84 and is used for issuing or canceling the token. Specifically, the performance data management unit 86 includes a value evaluation unit 86a and a failure determination unit 86b.

The value evaluation unit 86a includes measured values of the amount of power generated or consumed by each user during each power usage period, power generation data indicating the power generation method and the user who generated the power, or the amount of power generation and the storage period thereof, which are included in the actual data. Analyze the electricity storage data related to. The token management unit 84 issues or cancels the electric power transaction token, or issues the electric power transaction token and the environmental value token, based on the analysis result by the value evaluation unit 86a. Further, the token issuing unit 84a issues an environmental value token or a power demand control token as a consideration for generating surplus power based on the analysis result of the actual data including the power generation data or the electricity storage data by the value evaluation unit 86a.

Further, the actual data includes the type of power generation or storage related to the consumed electric power, and the value evaluation unit 86a analyzes the actual data and converts the electric power according to the power generation type having a high degree of contribution to the environment to the environment. The state of electricity storage by the type of electricity storage with a high degree of contribution is extracted, the amount of power and the time zone are calculated, and the value is evaluated. Based on the analysis result of the actual data by the value evaluation unit 86a, the token issuing unit 84a stores the electric power according to the power generation type having a high degree of contribution to the environment in the storage type having a high degree of contribution to the environment. Increase the value of.

The failure determination unit 86b is a module that analyzes the amount of power generated or consumed by each user during each power usage period included in the actual data, and determines the occurrence of a failure in the user system based on the analysis result. Is. The determination result by the failure determination unit 86b is tamper-proofly recorded in the blockchain, which is a guarantee system, via the token transaction platform.

The settlement unit 87 is a module that cashes in according to the market value of various tokens, and by acquiring information on the market value of various tokens from the network and making a settlement, virtual currency, points, and other exchanges are made in addition to the actual currency. Convert to valuable value information. In addition, the settlement unit 87 generates or acquires definite data including a definite value of the amount of power generated or used by each user during each power use period and the amount of consideration related to the amount of power, as shown in FIG. , It also has a function to settle the consideration paid or received by each user based on the confirmed data.

(5-3) Configuration of Guarantee System 9 As described above, in the present embodiment, it is arranged between the power control terminals on the power selling side and the power purchasing side that perform power transactions via various tokens, and is used for power transactions and token transactions. A guarantee system 9 for guaranteeing is provided. Specifically, as shown in FIG. 7, the guarantee system 9 includes a communication interface 93, an authentication unit 92, a token transaction execution unit 94, a token transaction history database 91a, a key information database 91b, and an account database 91c. It has.

The communication interface 93 is a module that transmits / receives data to / from other communication devices through the communication network 10, and is connected to each intermediary server 8 and each power control terminal in the present embodiment. The authentication unit 92 is a computer that verifies the legitimacy of the accessor or software having the function thereof, and executes the authentication process based on the user ID that identifies each user. In the present embodiment, the accessor has the right by acquiring a user-specific public address, public key, user ID, password, etc. from the accessor's power control terminal through the communication network 10 and collating the key information database 91b. Check if there is any, and if the accessor is the person himself / herself.

The token transaction execution unit 94 is an electric power transaction token that tokenizes the right to sell or consume electric power as a virtual coin, and is an added value derived from the power generation method and the storage method of each electric power and is derived from the electric power transaction token. A module that handles environment tokens or DR tokens. These various tokens are linked to the public account of each legitimate owner, and by presenting the relationship of the public account, it is possible to prove that the token is the legitimate right holder, and the legitimate rights. Only a person can carry out transfer procedures such as transfer of the token. In the present embodiment, the token transaction execution unit 94 includes a guarantee system cooperation function, a public address management unit 94b, a validity verification unit 94c, and a data update unit 94d.

The guarantee system linkage function is requested by a device of another service institution, for example, the above-mentioned intermediary server 8, to perform processing related to token transactions such as credit related to electric power transactions, security management, transaction records, and storage of service history, and with each of these devices. It is a module that works together to proceed with processing. Further, in the present embodiment, the guarantee system linkage function provides information such as transaction values of various tokens to the intermediary server 8 side.

The public address management unit 94b is a public address generated from a public key in public key cryptography for identifying a specific user, and a private key that can be paired with the public key to identify the public key. It functions as an address issuing unit that issues private keys used for electronic signatures of electric power transactions via public addresses, and these issued public addresses and key information related thereto are stored in the key information database 91b.

The validity verification unit 94c is a module that verifies that various tokens related to token transactions or electric power transactions belong to the current owner through legitimate transactions and that they have not been tampered with, and is linked to a public account. The validity of the token can be confirmed by the attached public key of the current owner, and all transactions related to the token are stored in the token transaction history database 91a, and the token transaction is performed based on the public key. The validity of the history database 91a can be confirmed by collating the history database 91a.

The data update unit 94d transfers the ownership of the token by acquiring the power information related to various tokens, adding the public address regarding the new token owner, and changing the token owner proved in the distributed ledger. It is a module. The data update by the data update unit 94d is protected by a high degree of security, and double transfer and falsification of the transaction history are strongly protected.

(Operation when power is supplied)
As shown in FIG. 4, first, for each target power storage device 71, the data acquisition unit 12 determines the time when the vehicle 7 was charged, the required time and the amount of electric power, and the change in the amount of power stored in the charged target power storage device 71. Performs a data acquisition step of recording and aggregating the past actual data (actual information) for each time zone for each electric power facility (S101).

In step S101, each charging device 43 detects the charging device 43 corresponding to the vehicle 7. The target charging device 43 here is a charging device 43 used for charging the vehicle 7 which is an uncharged vehicle, and specifically, a charging device 43 connected to the uncharged vehicle. Among the plurality of charging devices 43, the distribution power supply device control unit 22 determines that the charging device 43 that has transmitted the new connection confirmation signal that triggered the execution of the charging start control process is the target charging device.

After that, the distribution power supply control unit 22 confirms the vehicle type of the uncharged vehicle. Specifically, for example, the vehicle control unit 73 of the uncharged vehicle transmits its own vehicle type information to the charging device control unit 43b of the target charging device, and the charging device control unit 43b of the target charging device thereof. The vehicle type information is transmitted to the distribution power supply device control unit 22. The distribution power supply control unit 22 identifies the vehicle type of the uncharged vehicle based on the vehicle type information of the uncharged vehicle (vehicle 7). The specific content of the vehicle type information of the vehicle 7 is arbitrary as long as the vehicle type can be specified.

At the same time, the distribution power supply device control unit 22 derives the battery capacity and the remaining charge amount of the target power storage device 71 of the uncharged vehicle by referring to the battery capacity data stored in the distribution power supply control unit 22. .. The battery capacity data is data set by associating the vehicle type information of the vehicle 7 with the battery capacity of the target power storage device 71 and the remaining power storage amount. The distribution power supply control unit 22 derives the battery capacity and the remaining charge amount corresponding to the uncharged vehicle this time by referring to the battery capacity data. The battery capacity is the maximum amount of electricity stored in the target power storage device 71, is a design value predetermined for each vehicle type, and the remaining amount of electricity stored is the amount of electric power remaining in the target power storage device 71.

Next, based on the aggregated result of the information recorded by the data acquisition unit 12, the demand forecasting unit 16 predicts the power required for charging and the time zone for charging for each charging device 43, and sets the predicted value of the power demand as the charging device. A demand forecast step calculated for each is performed (S102).

Specifically, in this demand forecasting step (S102), the actual data collected by the data acquisition unit 12 is analyzed, and as shown in FIG. 5, the predicted power consumption for each unit measurement period of the power consumption in each time zone and the predicted power consumption The reliability for each unit measurement period in which the actual power consumption is the predicted power consumption is calculated for each demand unit for each charging device (S201).

Next, the standard deviation per unit time is calculated from the load value of the charging device (S202). Specifically, the chargeable / dischargeable power value range with the contracted power as the upper limit is ranked based on the load value of the charging device according to the reliability, and a model is constructed by machine learning based on the accumulated past data. do. The standard deviation per unit time is calculated according to the model and external conditions such as weather (S202).

Then, the required adjustment amount is set for each charging device based on the calculated predicted value and the rank of reliability from the standard deviation (S203). In this setting of the required adjustment amount, the amount of power accumulated based on the time length during which the same power consumption continues is defined by changing the respective power consumption, time zone and time length, and the defined time zone and time length and the time length are defined. Calculate the optimum power consumption, time zone and time length based on the predicted power consumption and reliability for each unit measurement period included in the time length, and adjust the power amount that exceeds the optimum power consumption amount. Set as. A charging schedule for each charging device is generated based on the set required adjustment amount (S204). This charging schedule forms a reduction period that intermittently reduces the amount of power supplied while each charging device is charging, depending on the required adjustment amount and its reliability rank, and the charging speed (per unit time). The power supply or charge amount is scheduled to adjust the charge amount).

Returning to FIG. 4, the power supply control unit 15 performs a power supply control step of controlling power supply to the charging device 43 or charging to the vehicle 7 according to the charging schedule generated based on the predicted value calculated in the demand forecasting step (S103). ). In this power supply control step, the power supply control unit 15 forms a reduction period in which the power supply amount is intermittently reduced during charging based on the calculated predicted value, and the charging speed (charge amount per unit time). Control the power supply or charge amount so as to adjust.

In step S103, the distribution power supply control unit 22 refers to the amount of power that can be supplied, which is the amount of power that the vehicle 7 can supply in the current situation. Specifically, the distribution power supply device control unit 22 refers to the current charging state of the power supply source 3 and the amount of power that can be supplied from the power supply source 3.

After that, while performing power supply or charging in this way, the charging result for each charging device is recorded as actual information (S104). Specifically, the distribution power supply control unit 22 starts charging the uncharged vehicle. Specifically, in the distribution power supply device control unit 22, AC power is distributed from the distribution power supply device 2 to the target charging device used for charging the uncharged vehicle, and power is supplied from the target charging device to the uncharged vehicle. To do so. At this time, the distribution power supply device control unit 22 transmits a charging start command to the charging device control unit 43b of the target charging device. The charging device control unit 43b of the target charging device switches the power supply switch 43a of the target charging device from the OFF state to the ON state based on the reception of the charging start command by the charging device communication unit 43d. As a result, the AC power from the distribution power supply device 2 is supplied to the uncharged vehicle.

The charging device control unit 43b of the target charging device is a target charging device so that a notification indicating that charging is in progress is performed based on switching the power supply switch 43a of the target charging device from the OFF state to the ON state. It controls the charging device notification unit 43c. On the other hand, when the amount of electric power that can be supplied is equal to or less than the battery capacity of the uncharged vehicle, the distribution power supply device control unit 22 executes a process corresponding to not charging. Specifically, the distribution power supply device control unit 22 controls the distribution power supply device notification unit 26 so that the non-chargeable notification, which is a notification that charging is not possible, is performed. Further, the distribution power supply device control unit 22 uses the distribution power supply device communication unit 23 to transmit a charge failure notification to the charging device control unit 43b of the target charging device.

The charging device control unit 43b of the target charging device keeps the power supply switch 43a of the target charging device in the OFF state based on the reception of the charging failure notification by the charging device communication unit 43d, and notifies the charging failure. The charging device notification unit 43c of the target charging device is controlled so as to be described. Then, the distribution power supply device control unit 22 executes a distribution stop process for stopping the power supply possible distribution using the wireless communication unit 25.

When charging of the uncharged vehicle is started, the charging device control unit 43b of the target charging device periodically determines whether or not a predetermined charging end condition is satisfied. The charging end condition is arbitrary, but for example, in the case where the charging state of the target power storage device 71 of the uncharged vehicle is fully charged or the charging device 43 is provided with the charging stop button, the target charging device It is possible that the charge stop button was operated. The charging device control unit 43b of the target charging device switches the power supply switch 43a of the target charging device from the ON state to the OFF state based on the establishment of the charging end condition. As a result, charging of the vehicle 7 to be charged is completed.

Here, the distribution power supply device control unit 22 executes the charge end corresponding process based on the completion of charging of the vehicle 7 to be charged. The charging end response process will be described in detail below.

First, in step S301, the distribution power supply control unit 22 grasps the amount of power used for charging the vehicle 7 to be charged this time. The mode of grasping the amount of power used is arbitrary, but in a configuration in which a current sensor or the like for detecting the current flowing through the target power storage device 71 of the vehicle 7 is provided, for example, the distribution power supply device control unit 22 uses the current. A configuration is conceivable in which the amount of power used is calculated from the detection result of the sensor. Then, the distribution power supply device control unit 22 updates the amount of power that can be supplied. The distribution power supply device control unit 22 uses a value obtained by subtracting the amount of power used from the amount of power that can be supplied before the update as a new amount of power that can be supplied.

Next, the distribution power supply device control unit 22 updates the charging history, which is the history of charging the vehicle 7. The charging history includes, for example, information on the amount of power used for each vehicle 7 to be charged. That is, the distribution power supply control unit 22 stores the amount of power used for charging the vehicle 7 each time the vehicle 7 is charged.

(Operation during token transfer transaction)
Here, the token transfer process in the intermediary server 8 will be described in detail. FIG. 13 is a flow chart illustrating a processing procedure at the time of transfer of the electric power trading system according to the present embodiment, and FIG. 14 illustrates the relationship between the public key and the private key according to the present embodiment.

In the present embodiment, the token transfer process and the account process related to the token transfer use the mechanism of the distributed ledger system according to the present embodiment. Here, a case where the seller Ua sells the electric power transaction token to the new buyer Ub through the token transaction platform will be described as an example. As shown in FIG. 13, this electric power trading transaction includes a public address and private key issuance step S401, a related service history information registration process S402, and a right transfer process execution step S403.

First, in step S401, in the intermediary server 8, the public address management unit 94b functions as an address issuing unit, and the public address management unit 94b corresponds to the public address PA3 unique to the token transaction platform and the public address PA3 for transactions. A pair with the private key SK3 is issued. Specifically, as illustrated in FIG. 14, the intermediary server 8 uses a random number generator or the like to generate a private key SK3 associated with a public address unique to the token trading platform by a public key cryptosystem. do. The random number generator may be built in the public address management unit 94b as a program, for example. As described above, this private key SK3 is used for electronic signature of a transaction (here, sale from the token trading platform to the buyer Ub) using the paired public transaction address PA3 as the power transfer source.

Next, the mediation server 8 generates a public key PK3 from the private key SK3 based on an electronic signature algorithm such as an elliptic curve DSA (Elliptic Curve Digital Signature Algorithm, ESDSA). The generated public key PK3 and private key SK3 form a key pair in the public key cryptosystem, and although it is possible to generate the public key PK3 from the private key SK3 due to the nature of this public key cryptosystem, the public key PK3 It is impossible to generate the private key SK3 from the viewpoint of the amount of calculation. That is, the private key SK3 cannot be specified from the public key PK3, but the public key PK3 can be specified from the private key SK3. The type of electronic signature algorithm to be used is not limited to the elliptic curve DSA, and may be appropriately selected depending on the embodiment.

Subsequently, the intermediary server 8 generates a transaction public address PA3 from the public key PK3 by applying a one-way hash function such as SHA-259 or RIPEMD-190 to the public key PK3. For example, the intermediary server 8 can generate the transaction public address PA3 by applying SHA-259 to the public key PK3 twice. That is, the transaction public address PA3 is a hash value of the public key used for signing the transaction described above, and is used to identify the transfer destination and transfer source of the token. Since a one-way hash function is used to generate the transaction public address PA3, as shown in FIG. 11, although it is possible to generate the transaction public address PA3 from the public key PK3, the transaction public address PA3 is generated. It is impossible to generate the public key PK3 from the address PA3.

In the next step S402, the transaction history data associated with each token, such as the history of services provided by the seller Ua, which is the power seller, to the power token trading platform is linked to the transaction public address PA3 generated in step S401. Attach and record to the node. Specifically, as illustrated in FIG. 10, the actual data acquired by the intermediary server 8 and the like are linked to the public transaction address PA3 and made public. This actual data can be freely viewed as long as the public key PK3 related to the public transaction address PA3 is obtained. As a result, anyone can verify fraudulent acts such as fraudulent or falsified in the history or transaction history of the power generation method, power generation location, etc. from which the electric power is derived.

After that, in step S403, the intermediary server 8 conducts a right transfer transaction to the transaction public address PA3 generated in step S401 in accordance with the predetermined power transfer conditions. Then, when the transfer is completed, the intermediary server 8 ends the process related to this operation example. Here, an application executed on a power control terminal or the like is used for exchanging various tokens according to the present embodiment. Therefore, in FIG. 10, an application that executes the token transaction mechanism is also installed in the public address management unit 94b of the intermediary server 8, and the public address for the pool managed by the platform is controlled by this application.

While the power token belongs to the seller Ua, the token is associated with the seller Ua's power control terminal, the seller Ua's unique public address PAa is associated with the paired private key SKa, and in the token trading platform. When the transfer procedure is taken, the seller Ua uses the power control terminal to temporarily transfer the token from the public address PAa (transfer source) to the transaction public address PA3 (transfer destination) generated by the electric power trader in step S401. Can be relocated and pooled.

On the other hand, the buyer Ub who wishes to purchase new electric power obtains the public key PK3 to which the electric power transaction token is associated by using his / her own electric power control terminal as illustrated in FIG. , The buyer Ub can view the power generation data and transaction progress information related to the electric power associated with the transaction public address PA3 of the token transaction platform, and the related electric power-specific history.

Specifically, an application is also installed in the power control terminal of the buyer Ub, and the public address PAb owned by the buyer Ub is managed by this application. The public address PAb is associated with its own private key SKb, which allows the token to be further transferred from its own public address PAb to another person. That is, each private key SKb allows the buyer Ub to freely use the token stored in the public address PAb and its transaction history. Here, the buyer Ub uses the application in the power control terminal to receive the token transferred from the power-specific transaction public address PA3 to the public address PAb.

(Operation of warranty system)
Here, the mechanism of the distributed ledger system adopted in the above-mentioned guarantee system will be described in detail. In the present embodiment, the guarantee system 9 provides a blockchain interface service, which includes a plurality of nodes for storing at least a part or all of the data generated by each user system or the intermediary server 8. Nodes aggregate and block the stored data at a predetermined timing, form a blockchain using the blocks, share the blockchain with a plurality of the nodes, and store the blockchain as a distributed ledger.

Specifically, as shown in FIG. 15, in the power trading system according to the present embodiment, when issuing, transferring, and canceling various tokens, the public key PKa and the private key SKa based on the public key cryptography are used through the guarantee system 9. In addition to issuing the key pair of, the public address PAa is generated from the public key PKa corresponding to the issued token. This public address PAa is used as an address indicating the transferee (buyer Ub) and the transferor (seller Ua) in the electric power transaction contract, while the private key SKa is used as an electronic signature of the transaction whose transfer source is the public address PAa. It will be used.

The electric power transaction according to the present embodiment is performed between two nodes on the P2P (Peer-to-Peer) network 90 (here, between the seller Ua and the buyer Ub), and the transaction information is obtained from each node in the P2P network 90. It is broadcast and shared between 90a and 90f. As a result, a transaction history database (so-called blockchain) by the distributed ledger system is formed on the P2P network 90, and transaction histories of various tokens and electric power transactions are stored.

In the present embodiment, the transaction history database by the distributed ledger system executes, approves, and manages the electric power transaction contract when rewriting the owners of various tokens through the intermediary server 8. The electric power transaction intermediary (each electric power control terminal) generates a transaction public address PA3 unique to the token transaction platform (intermediary server 8) in order to mediate the transaction between the seller Ua and the buyer Ub. Assuming that the token to be traded is temporarily deposited in the token pool of the token trading platform, the transfer of tokens will be relayed.

Then, the parties to the transaction (seller Ua and buyer Ub) receive the token once by transferring the token from the current seller Ua to the trading public address PA3 peculiar to the token trading platform by using the electric power trading system, and further By transferring to a new buyer Ub via the public transaction address PA3, a sales contract for a power token trading platform is established between the seller Ua and the buyer Ub.

As a result, the buyer Ub, who is the transferee, can receive the token at his / her public address PAb, and can view the service history associated with the transaction public address PA3 and use the service. The public address may be issued by the intermediary server 8, or may be issued by the software on each transaction user terminal or the server of an independent service management institution or financial institution.

Here, the detailed mechanism of the transaction of this electronic cryptocurrency will be specifically described. The transaction history related to the issuance, transfer, and cancellation of each token is defined as a chain of electronic signatures. When transferring the transaction history to the next owner, the owner of each token digitally signs the hash value of the previous transaction and the hash value of the public key related to the next owner with his / her private key. Add what you have done to the transaction history of the token. For the calculation of these hash values, for example, a one-way hash function such as SHA-259 or RIPEMD-190 is used.

Various tokens can be defined as a chain of digital signatures. Here, the hash value of the public key is the public address. That is, the tokens and the like stored in this public address can be transferred only to a person who can digitally sign an electric power transaction using this public address as a transfer source, that is, a person who has a private key corresponding to this public address. .. Therefore, the private key is generally kept secret so that it cannot be leaked to anyone other than the owner. Data such as tokens and transaction history related to them are stored at the public address associated with the current owner. In addition, since it is not possible to verify that any of the past owners of this token has used (multiple transfers) the token with this electronic signature alone, the token transaction according to the present embodiment cannot be verified. The mechanism uses a mechanism called blockchain to prevent this multiple use.

Each block recorded in a token or the like stores a plurality of transactions, a Nonce, and a hash value of the immediately preceding block. A nonce is a disposable random value used in encrypted communication, and among the nodes (minor) 90a to 90f, the node (minor) who first discovers this value blocks the block in which the nonce was discovered as an approver. Update the blockchain by adding it to the end of. As a result, a consistent transaction history is recorded in the blockchain, and by sharing this blockchain with all the nodes 90a to 90f participating in the P2P network 90, a consistent transaction history can be recorded in the entire P2P network 90. Can be shared. That is, this blockchain bears a part or all of the token transaction history database 91a and the key information database 91b in the guarantee system 9 described above. In the present embodiment, in the electric power transaction based on the public key cryptosystem, various tokens are traded by such a mechanism.

(Change example)
The description of the embodiments described above is an example of the present invention. Therefore, the present invention is not limited to the above-described embodiment, and various modifications can be made according to the design and the like as long as the technical idea of the present invention is not deviated.

For example, in the above-mentioned data acquisition step (step S101 in FIG. 4), the data acquisition unit 12 collects operation schedules such as rental car and car sharing of each vehicle, and the operation schedule collected in the demand forecast step (step S102 in FIG. 4). The demand forecasting unit 16 may make a forecast based on the above. In this case, the operation schedule holds information on the departure place, departure time, destination and arrival time of the sharing vehicle shared and used by a plurality of users, and the demand forecasting unit 16 is based on the operation schedule. The charging device suitable for charging is specified, and the power required for charging and the time zone for charging in the specified charging device are predicted.

More specifically, as shown in FIG. 7, in this modified example, a rental car management system having a function of cooperating with the power management device 1 of the power supply system described above is provided. This rental car management system is a system that manages the operation of automobiles related to the rental car service. This rent-a-car management system is roughly described from a vehicle management server 5 that accumulates information on rent-a-car operation and provides information on usage status so that it can be viewed through a communication network 10, and an in-vehicle terminal 6 mounted on a vehicle used for rent-a-car. It is composed.

The vehicle management server 5 is composed of a plurality of server groups such as a database server that stores information on the rental of automobiles and a Web server that distributes the information on the rental. The function of each server device is realized by a server computer that executes various information processing or software having the function.

Here, the Web server is a server computer that transmits information such as HTML (HyperText Markup Language) files, image files, and music files in a document system such as WWW (World Wide Web), or software having a function thereof. , HTML documents, images, and other information related to rental are stored, and information related to rent-a-car is transmitted through the communication network 10 in response to a request from the in-vehicle terminal 6.

The in-vehicle terminal 6 is a device fixed to an instrument panel or the like in a vehicle, having functions such as transmitting and receiving data to and from a server by a communication function in addition to functions such as a car navigation system. It is an electronic device having a function of measuring and electronically guiding a route to a current position or a destination when the vehicle is running. The in-vehicle device is not limited to a device fixed in the vehicle, and may be a portable information terminal device using wireless communication, such as a smartphone, a mobile phone, a tablet PC, or a mobile computer. The in-vehicle terminal 6 can acquire the current position by GPS or the like and wirelessly communicate with a relay point such as a wireless base station 10a to receive communication services such as data communication while moving. Examples of the communication method of this mobile phone include a 5G system, an LTE system, a 3G system, an FDMA system, a TDMA system, a CDMA system, a W-CDMA system, a PHS (Personal Handyphone System) system, a public wireless LAN system, and the like. Be done.

The destination D is the final destination of the vehicle 7, for example, the sales office of the car rental company that manages the car, the parking lot or convenience store that has a parking space usage contract with the car rental company, and the vehicle delivery of the car sharing. The location is mentioned, and a predetermined number of parking spaces are secured on the premises.

The wireless base station 10a is a device that is connected to the communication network 10, establishes a wireless communication connection with the vehicle-mounted terminal 6, and provides data communication by the vehicle-mounted terminal 6. The radio base station 10a includes a node device such as a modem, a terminal adapter, and a gateway device for connecting to a communication network 10 such as a relay device, and the relay device can be used to select a communication path and perform data (signals). ) Are converted to each other, and relay processing is performed between the radio base station 10a and the communication network 10.

(Functional module of each device)
Next, the internal configuration of each device will be described in detail. FIG. 8 is a block diagram showing the internal configuration of the vehicle-mounted terminal 6 according to the present embodiment, and FIG. 9 is a block diagram showing the internal configuration of the vehicle management server 5 according to the present embodiment. The term "module" used in the description refers to a functional unit composed of hardware such as a device or device, software having the function, or a combination thereof, for achieving a predetermined operation. ..

(1) In-vehicle terminal 6
As shown in FIG. 8, the in-vehicle terminal 6 includes an input interface 62 and an output interface 63 as user interface modules. The input interface 62 is a device for inputting user operations such as operation buttons, a touch panel, and a jog dial. The output interface 63 is a device such as a display or a speaker that outputs video or sound. In particular, the output interface 63 includes a display unit 63a such as a liquid crystal display.

Further, the in-vehicle terminal 6 includes a wireless interface 61 as a communication module. The wireless interface 61 is a wireless communication interface capable of making a call and data communication, and can transmit and receive packet data by wireless data communication. The wireless interface 61 also includes a short-range wireless communication unit 61a, which is a device for performing short-range wireless communication using a Bluetooth (registered trademark) system, a UWB (Ultra Wide Band) system, infrared rays, or the like. Further, by receiving the VICS (registered trademark) signal transmitted from the FM multiplex broadcast or the transmitter on the road to the wireless interface 61, for example, traffic information such as traffic congestion, traffic regulation, and congestion status of the parking lot can be obtained. It also has a function to acquire road information in real time.

Further, the in-vehicle terminal 6 includes a position information acquisition unit 64 and a memory 65. The position information acquisition unit 64 is a module that measures the current position of its own machine. , It is possible for the in-vehicle terminal 6 itself to acquire the position information of its own device from the radio wave condition such as the signal strength from this base station.

The memory 65 is a storage device for accumulating various data, and is a control program for the control unit 67 to control each unit, various initial setting values, font data, each dictionary data, and navigation for executing a navigation function. The program, the rental car management program according to the present embodiment, the vehicle ID for identifying the vehicle, and the like are stored. Further, the memory 65 receives and stores information (user ID, usage time, etc.) regarding the current usage status of the user and the reservation person from the vehicle management server 5.

Further, the in-vehicle terminal 6 includes a control unit 67 and a usage information transmission unit 66 as application execution system modules. The control unit 67 is an operation composed of a processor such as a CPU or DSP (Digital Signal Processor), memory, hardware such as other electronic circuits, software such as a program having the function, or a combination thereof. It is a module, and various functional modules are virtually constructed by reading and executing a program as appropriate, and each constructed functional module performs various processes for operation control and user operation of each part. In particular, in the case of the present embodiment, the control unit 67 executes a general route guidance function by the navigation program of the memory 65, and also executes a rental car return function or the like by the rental car management program.

Further, the control unit 67 includes a navigation control unit 67a, an operation plan setting unit 67b, and an arrival information notification unit 67c. The navigation control unit 67a is a module for browsing a Web page, which is constructed by executing a car navigation application. It accesses the vehicle management server 5 and downloads map information and information necessary for using the rental car service. Then, analyze the layout and display / play it. In particular, in the present embodiment, the navigation control unit 67a displays a rental car reservation screen and a screen for setting a return destination as a Web page on the display unit 63a as information related to the rental car service in addition to the information required for the car navigation system. Let me browse.

The operation plan setting unit 67b is a module that sets the operation plan of the rental car according to the user operation, and sets the operation plan based on the information on the departure point or destination of the car in operation and the arrival information at the time of return. It is designed to be set. Specifically, by determining the departure point and destination during rental from the map display screen displayed on the display unit 63a, the vehicle management server can generate an operation plan including the route and time searched based on the information. It is transmitted to 5 and recorded.

Further, before setting the arrival information, the operation plan setting unit 67b accepts the desired delivery point of the vehicle as the designation of the destination based on the operation of the next user U2, and rents the vehicle 7 at the desired point. It has a function to set an advance reservation for. In this advance reservation, for example, by inputting a point (for example, destination D) selected by the next user's operation and a desired time to start using the information, such information is set as advance reservation information, and vehicle management is performed. It is transmitted to the server 5.

The arrival information notification unit 67c is a module that sets the destination of the automobile as the return destination based on the operation of the user. At this time, the arrival information notification unit 67c calculates and calculates the estimated time of arrival at the return destination according to the measurement result (position information) by the position information acquisition unit 64 or the position information acquisition unit 64 of the in-vehicle terminal 6. It also has a function of notifying the vehicle management server 5 of the estimated arrival time and the set return destination information as arrival information. Specifically, the arrival information notification unit 67c calculates the mileage from the current position information and the position information of the destination, and calculates the estimated time of arrival based on the regulated speed of the road. At this time, it is also possible to acquire information on the traffic condition of the road and change the estimated arrival time.

In addition, the arrival information notification unit 67c also has a function of accepting search conditions and narrowing down the destination when setting the return destination. Various settings can be made for this search condition. For example, it is possible to search in a predetermined area, search by store type such as a rental car operating company's sales office or a convenience store, and further, stores of the same series. It is also possible to search only within.

Further, in the present embodiment, the arrival information notification unit 67c has a function of displaying a desired point designated as an advance reservation as a candidate site by referring to the map information when the driver U1 sets the destination. It has. This advance reservation information is received from the vehicle management server 5 at any time during the destination setting operation.

Then, the vehicle management server 5 transfers the arrival information from the arrival information notification unit 67c to the power management device 1. The demand forecasting unit 16 of the power management device 1 calculates the destination, arrival time, power consumption (required charge amount), etc. described in the arrival information and reflects them in the power demand forecast.

The control unit 67 also has a mail function, and receives a reservation completion confirmation mail from the vehicle management server 5. Further, when the rental car management program is installed on the terminal, the control unit 67 displays the initial setting screen and accepts the input of personal information such as the user's name, address, and date of birth. Then, in addition to these personal information, the telephone number of the terminal and the serial number of the IC chip or the like are extracted from the memory 65 and transmitted to the vehicle management server 5.

The usage information transmission unit 66 is a module that transmits an operation signal of the input interface 62 to the vehicle management server 5. For example, a browsing request for a reservation / return screen, reservation information, arrival information, etc. are sent according to a user operation. Send. At this time, the usage information transmission unit 66 transmits the current position information and the user ID to the vehicle management server 5 together with the operation signal.

(2) Vehicle management server 5
FIG. 9 is a block diagram showing an internal configuration of the vehicle management server 5. The vehicle management server 5 has both a function as a storage server that provides a storage area and a function as a Web server that distributes and manages rental car information, and is composed of a single server device or a plurality of server groups. Various functional modules are constructed by the server management application executed on these server devices. Specifically, as shown in FIG. 9, the vehicle management server 5 includes a communication interface 51, a control unit 52, and various storage devices 53 (531 to 535).

The storage device 53 includes a map information storage unit 531 that stores map information, a user information database 532 that stores information about users, a power supply equipment information database 533 that stores information about power supply equipment, and rental car application information. It includes a usage status database 534 that stores usage status and an automobile information database 535 that stores information about automobiles. As shown in FIG. 6, these are relational databases in which a plurality of table data and relationships are mutually formed, and user information, store information, usage status information, and automobile information stored in each database are associated with each other. Therefore, it can be managed based on the vehicle ID, the user ID, and the store ID.

Specifically, the user information database 532 is a database relating to users who use the rental car management service, and a user ID for identifying the customer is assigned to this database, and the mobile phone used using this user ID as an index. The number, name, address, number of points to be given, etc. are recorded.

The power supply equipment information database 533 is a database that stores information on charging equipment capable of charging the vehicle 7, and a charging device ID that identifies the power supply equipment such as a charging station is assigned to this database. As an index, information such as the location information of the power supply equipment, business hours, the number of units that can be installed, and the current vacant space is stored.

The automobile information database 535 is table data related to information about the vehicle 7, and the table data includes, for example, a vehicle ID that identifies the vehicle 7 such as a vehicle registration number, and information and use regarding the vehicle type using this vehicle ID as an index. The status, waiting store ID, rental fee, etc. are included.

The usage status database 534 is table data related to the usage status including the reservation information of the rental car, and uses the reservation ID given when the application for use is accepted as an index to identify the scheduled rental time and the rental store. The ID, the scheduled return time, the scheduled return store ID, the user ID, the vehicle ID, and the like are included.

The map information storage unit 531 is a storage device that stores map information that stores geographical information of a predetermined area, and in addition to general map information and tourist information, in the present embodiment, the vehicle is rented or returned. Candidate destinations (stores, etc.) are accumulated as vector data on the coordinates of latitude and longitude. In addition, this map information is divided into areas where multiple stores are scattered, such as prefectures, cities, wards, towns and villages, and the west and east exits of stations, as predetermined areas, and adjacent areas overlap each other. There are, and one or more stores are arranged in the overlapping part. This map information is transmitted to the in-vehicle terminal 6 and stored in each memory.

The communication interface 51 is an interface for transmitting / receiving data to / from the in-vehicle terminal 6 through the communication network 10. Through this communication interface 51, for example, data related to a rental car application is transmitted, and reservation information and the like related to the rental car are received.

The control unit 52 is an operation composed of a processor such as a CPU or DSP (Digital Signal Processor), memory, hardware such as other electronic circuits, software such as a program having the function, or a combination thereof. It is a module, and various functional modules are virtually constructed by reading and executing a program as appropriate, and each constructed functional module performs various processes for operation control and user operation of each part.

In the present embodiment, the control unit 52 includes an authentication unit 521, an operation signal acquisition unit 522, an information providing unit 525, a member registration unit 524, and an operation management unit 523 as a group of modules related to registration and application for a rental car. I have.

The authentication unit 521 is a module that executes an authentication process using the authentication information. Specifically, the authentication unit 521 is a computer that verifies the validity of the accessor or software having the function thereof, acquires a user ID and a store ID through the communication network 10, and obtains a user information database 532 and a power supply facility. By collating the information database 533, it is confirmed whether or not the accessor has the right, and whether or not the accessor is the person himself / herself. As an authentication method, for example, an ID and a password may be input on a Web page, and authentication may be performed based on the ID and password. Alternatively, the authentication process may be performed using a one-time password that distributes a password that is changed periodically to the in-vehicle terminal 6 and M2 and authenticates by inputting the password at the time of authentication.

The operation signal acquisition unit 522 is a module that acquires user operations from the in-vehicle terminal 6 and M2. In the present embodiment, the operation signal acquisition unit 522 transmits the information to the member registration unit 524 if the operation signal is an operation related to member registration, and operates management if the operation signal is an operation related to reservation or return of a car. It is transmitted to unit 523.

The information providing unit 525 is a module that distributes various Web data through the communication network 10. Specifically, the information providing unit 525 sets the Web data of the reservation setting and the return destination setting to the in-vehicle terminal 6 and M2 in response to the control signal from the operation management unit 523. In addition, the information providing unit 525 also has a function of distributing Web data for member registration related to the user's member registration to the in-vehicle terminals 6 and M2 under the control of the member registration unit 524. It is a module that accepts membership registration for a user based on an input operation for the Web data for the user, and acquires the user's name, address, telephone number, payment information, and the like. Then, the information received by the member registration unit 524 is stored in the user information database 532.

The operation management unit 523 is a module that manages the rental and return of the vehicle 7, and in the present embodiment, the operation management unit 523 includes a reservation reception unit 523a and a return reception unit 523b. The return reception unit 523b is a module that receives arrival information regarding the return of the vehicle 7. In the present embodiment, when the return reception unit 523b acquires the operation signal for setting the return destination from the in-vehicle terminal 6, the return reception unit 523b selects a store having an empty space from the predetermined area based on the position information acquired at the same time. Then, the return reception unit 523b controls the information providing unit 525 to transmit the store ID of this store to the in-vehicle terminal 6. At this time, if the return receiving unit 523b has acquired the advance reservation information from the distribution power supply device 2, it also transmits the information of the desired rental point.

When the return reception unit 523b acquires the arrival information set by the customer from the in-vehicle terminal 6, the return destination store ID and the estimated time of arrival included in the arrival information are recorded in the usage status database 534. At this time, if the acquired arrival information is a desired point designated as an advance reservation, the return reception unit 523b notifies the reservation reception unit 523a of the information. The return reception unit 523b does not record in the usage status database 534 when the time difference between the current time and the estimated arrival time is large, and reflects it when the time difference from the estimated arrival time is within a predetermined range. You may. In this case, it is possible to prevent the next user from being unavailable due to a schedule change or the like.

Further, the return reception unit 523b also has a function of requesting the driver who sets the destination as the return destination to change the return destination to a predetermined store. This return destination request function is executed when the destination transmitted from the in-vehicle terminal 6 is a store in an area adjacent to the area included in the advance reservation information. Specifically, the return reception unit 523b notifies the in-vehicle terminal 6 of a message requesting that the overlapping stores in the adjacent areas change the return destination. After that, when the return reception unit 523b acquires the consent information for the change of the return destination, the change of the return destination is confirmed.

The reservation reception unit 523a is a module that accepts reservations for rental of the vehicle 7. In the present embodiment, when the reservation reception unit 523a acquires the operation signal related to the application from the in-vehicle terminal 6, the power supply facility information is supplied to the store near the place where the customer is staying based on the position information of the in-vehicle terminal 6 acquired at the same time. Select from the database 533 and select the cars waiting and to be returned from the store.

For the selection of the vehicle 7, the vehicle information database 535 is referred to based on the selected store ID, the vehicle including the selected store ID in the waiting store column is selected, and the usage status database 534 is displayed. With reference to this, a vehicle including the selected store ID in the return store ID field is selected. Then, the reservation reception unit 523a controls the information providing unit 525, and transmits information on rentable vehicles (vehicles on standby and scheduled to be returned) and store information thereof to the in-vehicle terminal 6. Regarding the car information scheduled to be returned, the information on the scheduled return time will also be transmitted.

After that, when the reservation reception unit 523a acquires the reservation information for renting the car from the in-vehicle terminal 6, it adds a new reservation ID and uses the vehicle ID and the usage time information included in the reservation information in association with each other. Record in the status database 534. Further, when the reservation reception unit 523a acquires the advance reservation information from the in-vehicle terminal 6, it records the store ID of the store at the desired rental point or the store in the predetermined area and the scheduled usage time information in the usage status database 534. do.

In addition, the reservation reception unit 523a also has a function of matching the desired point of advance reservation with the destination of the person who is scheduled to return. Specifically, it is a condition that advance reservation information is accepted from the next user, and then when a desired point is selected as a return destination from the driver's in-vehicle terminal 6, conditions such as time are matched. Then, the vehicle 7 is matched so as to be rented to the next user who has made a reservation in advance. When the advance reservation information selects the desired area, the reservation reception unit 523a determines whether or not the selected destination is included in the desired area and performs matching.

Further, the reservation reception unit 523a also has a function of requesting a user who sets a reservation to rent a car at a predetermined store. This rental destination request function is, for example, a vehicle whose return destination is another store or area when the reservation person wishes to rent the vehicle 7 in a predetermined area but there is no car in the store or area. 7 is searched, and if found, a message regarding a change request of the rental store is transmitted to the in-vehicle terminal 6 of the reservation person. The operation management unit 523 also has an e-mail function, and when the reservation reception unit 523a and the return reception unit 523b accept the reservation and return settings for the vehicle 7, it is confirmed that the reception has been completed. E-mails are sent to the in-vehicle terminals 6 and M2.

The control unit 52 includes a power supply equipment information acquisition unit 526, a collation unit 528, a settlement processing unit 527, and a timekeeping unit 54 as a module group related to procedures on the power supply side and management after the end of use. The power supply equipment information acquisition unit 526 is a module that collects information about the power supply equipment from each power supply equipment and stores it in the power supply equipment information database 533. The timekeeping unit 54 is a module for acquiring the current time, and in the present embodiment, the time when the operation signal of the rental procedure or the operation signal of the return procedure transmitted from the in-vehicle terminal 6 is acquired is used. It is acquired as a time or a usage end time, and the time information is transmitted to the collation unit 528.

The collation unit 528 is a module that collates the information regarding the lending procedure or the return procedure acquired from the in-vehicle terminal 6 with the reservation information. Specifically, when the collation unit 528 acquires the operation signal of the rental procedure at the start of rental, the collation unit 528 acquires the reservation information corresponding to the user ID from the usage status database 534 based on the user ID acquired at the same time. Then, the collation unit 528 searches the map information near the departure point included in the acquired reservation information, and collates the peripheral power supply equipment that can supply power. Further, the collation unit 528 compares the usage time information of the reservation information with the time information acquired by the timekeeping unit 54, and determines whether or not it is within the scheduled time.

Then, when the power supply equipment capable of supplying power is detected and within the usage time information, the information indicating that the reserved vehicle can supply power is transmitted to the in-vehicle terminal 6 by Web data or e-mail. On the other hand, if it is not detected which of the power supply facilities, the information that the power supply of the automobile cannot be supplied is transmitted to the in-vehicle terminal 6 by Web data or e-mail. In addition, the collation unit 528 also has a function of converting the item of "usage status" of the automobile information database during rental based on the vehicle ID when the rental is permitted.

On the other hand, even when the operation signal of the return procedure at the end of rental is acquired, the collation unit 528 acquires the reservation information corresponding to the user ID from the usage status database 534 based on the acquired user ID. Then, the collation unit 528 searches the map information near the destination included in the acquired reservation information, and collates the peripheral power supply equipment that can supply power.

Then, when the equipment capable of supplying power is not detected, information to encourage power supply at another timing is transmitted to the in-vehicle terminal 6 by Web data or e-mail. On the other hand, when the equipment that can be used as a palace is detected, the information that the equipment can be returned is transmitted to the in-vehicle terminal 6 by Web data or e-mail. After permitting the return, the collation unit 528 converts the item of "usage status" of the automobile information database into waiting.

The payment processing unit 527 is a module that executes payment processing based on the information stored in the usage status database 534. Specifically, the driver is charged based on the payment information of the user information database 532 with reference to the information on the usage status accumulated in the usage status database. As this billing process, for example, the store may directly collect the charge from the customer by notifying the data permitting the return of the vehicle when it is transmitted to the in-vehicle terminal 6, or the credit registered in advance. Payment processing may be performed using a card or the like.

(Power supply management method linked with rental car management)
By linking the rental car management system having the above configuration with the power supply management system, the power supply management method of the present invention can be implemented. FIG. 10 is a flowchart showing the operation when the rental car is returned. Here, it is assumed that the user has been registered as a member of the vehicle management server 5 in advance, and the case where the driver returns the car currently in use to the rental car service store will be described as an example.

In the present embodiment, the cooperation between the rental car management system and the power supply management system is executed at the time of the destination setting operation performed at the time of reservation of the rental car, the start of use, or the like. More specifically, the driver using the vehicle 7 activates the rental car management application on the in-vehicle terminal 6 or the smartphone, and presses, for example, a destination setting start button for setting the rental car return location as the destination. (S301), the usage information transmission unit 66 transmits this destination setting operation signal together with the user ID to the vehicle management server 5 (S302).

When the vehicle management server 5 acquires the destination setting operation signal from the in-vehicle terminal 6 (S303), the authentication unit 521 performs the authentication process by the user ID or the vehicle ID. Once authenticated, the return reception unit 523b extracts information on the latest vacant space, such as whether the space required to return the rental car can be secured at each service store or the surrounding parking lot, and around the vacant space. The power supply enable state and location information of the power supply equipment such as the charging station existing in the above are extracted as the power supply equipment information. Then, the return reception unit 523b selects these extracted empty spaces and the power supply equipment, and transmits the position information to the in-vehicle terminal 6 (S304). Then, based on this position information, the display unit 63a displays the position information and related information of the free space that can be returned and the power supply equipment that can supply power on the screen (S305).

After that, when the destination such as the return destination store is selected by the driver's operation (S306), the arrival information notification unit 67c acquires the location information from the location information acquisition unit 64 (S307), and the destination The estimated time of arrival at (S308) is calculated, and the estimated time of arrival, information on the return destination store, and the power supply facility are notified to the vehicle management server 5 as arrival information (S309). The return reception unit 523b acquires this arrival information (S310), and records the location information, store ID, and estimated time of arrival of the destination and the power supply facility to be used in the usage status database 534. Then, the power management device 1 is notified of the arrival time and the required power supply amount for the selected power supply equipment (S311). The power management device 1 that has received this notification reflects it in the calculation of the predicted value of the power demand performed in step S102. Specifically, for the power supply equipment included in the arrival information, when returning the rental car, the forecast value of the electric power demand is calculated in consideration of the schedule that the power supply will be performed at the arrival time of the vehicle. At this time, the power consumption is calculated from the distance traveled during the rental period of the rental car from the vehicle management server 5, and the storage information such as the remaining amount of the storage battery is directly acquired from the vehicle, which is necessary for power supply. Predict the amount of power to be produced.

(Power supply management program)
The power supply management system and the power supply management method according to the above-described embodiments and modifications can be realized by executing a power supply management program written in a predetermined language on a computer. That is, by installing a power supply management program on a server device, a dedicated device such as a smartphone, a tablet PC, an in-vehicle terminal, or an IC chip and executing it on these CPUs, a system having each of the above-mentioned functions can be easily constructed. be able to. This program can be distributed, for example, over a communication line and can be transferred as a packaged application running on a stand-alone computer.

Then, such a program can be recorded on a recording medium that can be read by a personal computer. Specifically, it can be recorded on various recording media such as a magnetic recording medium such as a flexible disk or a cassette tape, an optical disk such as a CD-ROM or a DVD-ROM, or a USB memory or a memory card.

(Action / effect)
According to the present embodiment described above, in order to predict the stay of EV by learning from the past results of power supply (day, time zone, free charge capacity, charging time, etc.) for each charging device, power is supplied for each charging device. Even if demand can be predicted and individual behavior prediction and stay prediction are difficult, so-called stay prediction is provided with accuracy (the latest one is more accurate) and a short reduction period is provided. Power supply slicing can be done. As a result, the stay prediction slices of a plurality of EVs can be bundled and managed as an adjustable amount, and the EV can be used as a power adjusting force to perform power control such as peak cut.

The present invention is not limited to the above-described embodiments as they are, and at the implementation stage, the components can be modified and embodied within a range that does not deviate from the gist thereof. In addition, various inventions can be formed by an appropriate combination of the plurality of components disclosed in the above-described embodiment. For example, some components may be removed from all the components shown in the embodiments.

Further, according to the present embodiment, various tokens are issued based on the power generation time and place of the power in the power supply source 3, and the power generation method, and the tokens are used for power sales transactions and settlement of consideration. Can be done. As a result, in diversifying electric power transactions such as environmental value transactions and adjustment power transactions, added value can be accumulated and distributed as tokens in each transaction unit. For example, by using tokens, it is possible to freely link supply destinations and demand destinations in transaction units such as self-consumption, accommodation for others, market trading, and PPS provision in comparison with the market value. In addition, it is possible to easily enter the platform by providing APIs and terminals for interface to the platform. Furthermore, since the blockchain interface service is also implemented, it is possible to easily enter from the existing interface. As a result, according to the present invention, in the electric power trading market where diversified electric power values are mixed, it is possible to freely link the supply source and the demand destination while appropriately evaluating the electric power value and to charge or sell. ..

In particular, since we have adopted a distributed database system as a guarantee system, there is no need to install equipment for strong single system management and operation for each business operator, and information is linked when exchanging information between vendors. Since the common database for this purpose, privacy protection, and advanced security measures against data tampering are guaranteed by the distributed database system, the equipment cost and operating cost can be suppressed.

PAa ... Public address PAb ... Public address PKa ... Public key SKa ... Private key SKb ... Private key U1 ... Driver U2 ... User Ua ... Seller Ub ... Buyer 1 ... Power management device 2 ... Distribution power supply device 3 ... Power supply source 4 ... Charging station 5 ... Vehicle management server 6 ... In-vehicle terminal 7 ... Vehicle 8 ... Mediation server 9 ... Guarantee system 10 ... Communication network 10a ... Radio base station 11 ... Communication interface 12 ... Data acquisition unit 13 ... Database 14 ... Control instruction schedule management Unit 15 ... Power supply control unit 16 ... Demand forecasting unit 17 ... Performance information analysis unit 20 ... User system 21 ... Power conversion unit 21a ... Token management database 22 ... Distributed power supply device control unit 23 ... Distributed power supply device communication unit 24 ... Location information acquisition Part 25 ... Wireless communication unit 26 ... Distribution power supply notification unit 40 ... Power control terminal 41 ... Smart meter 42 ... Storage battery 43 ... Charging device 43a ... Power supply switch 43b ... Charging device control unit 43c ... Charging device notification unit 43d ... Charging device communication Unit 51 ... Communication interface 52 ... Control unit 53 ... Storage device 54 ... Measuring unit 61 ... Wireless interface 61a ... Short-range wireless communication unit 62 ... Input interface 63 ... Output interface 63a ... Display unit 64 ... Position information acquisition unit 65 ... Memory 66 … Usage information transmission unit 67… Control unit 67a… Navigation control unit 67b… Operation plan setting unit 67c… Arrival information notification unit 71… Target power storage device 72… Charger 73… Vehicle control unit 74… Target vehicle communication unit 521… Authentication unit 522 ... Operation signal acquisition unit 523 ... Operation management department 523a ... Reservation reception department 523b ... Return reception department 524 ... Member registration department 525 ... Information provision department 526 ... Power supply equipment information acquisition department 527 ... Payment processing department 528 ... Verification department 531 ... Map Information storage unit 532 ... User information database 533 ... Power supply equipment information database 534 ... Usage status database 535 ... Automobile information database

Claims (12)

It is a power supply management system that charges the target power storage device mounted on the target vehicle to be supplied.
A charging device for charging the target power storage device and
For each of the charging devices, a data acquisition unit that records the time when the target vehicle is charged, the required time and the amount of electric power, and the change in the amount of electricity stored in the charged target power storage device.
A demand forecasting unit that predicts the power required for charging and the time zone for charging for each charging device based on the information recorded by the data acquisition unit.
A power supply management system including a power supply control unit that controls power supply to the charging device or charging of the target vehicle based on a forecast by the demand forecasting unit. The power supply management system according to claim 1, wherein the power supply control unit controls the power supply or the charge amount by forming a reduction period for intermittently reducing the power supply amount during charging. .. The data acquisition unit collects the operation schedule of each vehicle and collects it.
The power supply management system according to claim 1, wherein the demand forecasting unit makes the forecast based on the collected operation schedule. The operation schedule holds information on the departure place, departure time, destination and arrival time of the sharing vehicle shared and used by a plurality of users.
The claim is characterized in that the demand forecasting unit identifies a charging device suitable for charging based on the operation schedule, and predicts the power required for charging and the time zone for charging in the specified charging device. The power supply management system according to 3. It is a power supply management method that charges the target power storage device mounted on the target vehicle to be supplied.
A data acquisition step in which the data acquisition unit records changes in the time, required time, and electric energy of charging the target vehicle and the amount of electricity stored in the charged target power storage device for each of the target power storage devices to be charged. ,
Based on the information recorded by the data acquisition unit, the demand forecasting unit predicts the power required for charging each charging device and the time zone in which charging should be performed, and the demand forecasting step.
A power supply management method, wherein the power supply control unit includes a power supply control step for controlling power supply to the charging device or charging to the target vehicle based on a prediction by the demand forecasting unit. 5. The fifth aspect of the present invention is characterized in that, in the power supply control step, the power supply control unit controls the power supply or the charge amount by forming a reduction period for intermittently reducing the power supply amount during charging. The power supply management method described. In the data acquisition step, the data acquisition unit collects the operation schedule of each vehicle.
The power supply management method according to claim 5, wherein in the demand forecasting step, the demand forecasting unit makes the forecast based on the collected operation schedule. In the data acquisition step, the operation schedule holds information on the departure place, departure time, destination and arrival time of the sharing vehicle shared and used by a plurality of users.
In the demand forecasting step, the demand forecasting unit identifies a charging device suitable for charging based on the operation schedule, and predicts the power required for charging and the time zone for charging in the specified charging device. The power supply management method according to claim 7, wherein the power supply management method is characterized. It is a power supply management program that charges the target power storage device mounted on the target vehicle to be supplied.
For each charging device that charges the target power storage device, a data acquisition unit that records the time when the target vehicle is charged, the required time, the amount of power, and the change in the stored amount of the charged target power storage device.
A demand forecasting unit that predicts the power required for charging and the time zone for charging for each charging device based on the information recorded by the data acquisition unit.
A power supply management program characterized in that it functions as a power supply control unit that controls power supply to the charging device or charging to the target vehicle based on a forecast by the demand forecasting unit. The power supply management program according to claim 9, wherein the power supply control unit controls the power supply or the charge amount by forming a reduction period for intermittently reducing the power supply amount during charging. .. The data acquisition unit collects the operation schedule of each vehicle and collects it.
The power supply management program according to claim 9, wherein the demand forecasting unit makes the forecast based on the collected operation schedule. The operation schedule holds information on the departure place, departure time, destination and arrival time of the sharing vehicle shared and used by a plurality of users.
The demand forecasting unit identifies a charging device suitable for charging based on the operation schedule, and predicts the power required for charging and the time zone for charging in the specified charging device. 11. The power supply management program according to 11.

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