JP2022099982A - Power measurement information management method, power measurement information management system, information processing device, and computer program - Google Patents

Abstract

To provide a power measurement information management method, a power measurement information management system, an information processing device, and a computer program that can be expected to improve the reliability of information handled in supply and demand adjustment.SOLUTION: In a power measurement information management method according to a present embodiment, an information processing device acquires power measurement information about power measured by a power measuring instrument installed at a consumer via a first communication path connecting a power company and the consumer, stores the acquired power measurement information in a distributed ledger system, and calculates a numerical value related to supply and demand adjustment based on information about the consumer subject to supply and demand adjustment stored in the distributed ledger system by an intermediary who lies between the power company and the consumer and the power measurement information stored in the distributed ledger system.SELECTED DRAWING: Figure 10

Description

The present invention relates to a power measurement information management method, a power measurement information management system, an information processing apparatus, and a computer program for processing information related to supply and demand adjustment carried out by a consumer.

Smart meters that measure the amount of electric power used and the amount of power generated by electric power consumers are widespread. In the past, the meter reader visually confirmed the meter reading value of the electricity meter, but since the smart meter can automatically send the measurement result to the server device of the electric power company, the meter reader's work. Has the advantage of becoming unnecessary. In addition, while the work by the meter reader is performed once a month, the measurement result can be transmitted by the smart meter, for example, once every 30 minutes, so the electric power company can perform the latest measurement. It has the advantage of being able to manage the results.

Patent Document 1 proposes a data management system including a plurality of smart meters, a data collection communication device, and a meter data management device. In this data management system, the meter data management device has a function to interpolate the warehousing instruction number data as the instruction number data included in the meter data immediately before the meter data received first after the smart meter is attached to the demand destination. Is equipped.

Japanese Unexamined Patent Publication No. 2020-57940

In the past, electric power companies supplied electric power exclusively to each region, but with the liberalization of electric power, new businesses have entered the electric power business. When various businesses become involved in the buying and selling of electric power, there is a risk that the power measurement information that is the basis of the buying and selling may be falsified or erroneously processed, and technology that prevents the falsification of the measured information is required. ..

In the following, the electric power company after the liberalization of electric power is simply called the "electric power company" (strictly speaking, a general power transmission and distribution business operator), and the business operator that adjusts the electric power demand by bundling multiple consumers at the request of the electric power company is called "aggregator". (Intermediary) ". In addition, a plurality of aggregators may be provided hierarchically. For example, when they are provided in two layers, the first layer of the aggregator is called "parent aggregator (parent aggregator, parent mediator)" and the second layer is "parent aggregator". It is called "child aggregator (child aggregator, child mediator)".

The present invention has been made in view of such circumstances, and an object thereof is a power measurement information management method and power measurement information which can be expected to improve the reliability of information handled in adjusting power demand. The purpose is to provide management systems, information processing devices and computer programs.

In the power measurement information management method according to the embodiment, the power related to the power measured by the power measuring instrument installed in the customer via the first communication path connecting the power company and the consumer by the information processing apparatus. A consumer who acquires measurement information, stores the acquired power measurement information in the distributed ledger system, and is subject to supply-demand adjustment stored in the distributed ledger system by an intermediary between the power company and the consumer. A numerical value related to supply and demand adjustment is calculated based on the information related to the information and the power measurement information stored in the distributed ledger system.

In the case of one embodiment, it can be expected to improve the reliability of the power measurement information related to the power.

It is a schematic diagram for demonstrating the outline of the power measurement information management system which concerns on this embodiment. It is a schematic diagram for demonstrating the configuration of the power measurement information management system which concerns on this embodiment. It is a block diagram which shows the structure of the electric power company server apparatus which concerns on this embodiment. It is a schematic diagram for demonstrating one configuration example of ledger information. It is a schematic diagram which shows one configuration example of the power measurement information DB provided in the distributed ledger system. It is a block diagram which shows the structure of the parent aggregate server apparatus which concerns on this embodiment. It is a block diagram which shows the structure of the child agri-server apparatus which concerns on this embodiment. It is a schematic diagram which shows one configuration example of a DR consumer DB. It is a block diagram which shows the structure of the smart meter and GW which concerns on this embodiment. It is a schematic diagram for demonstrating the power measurement information management process performed by the power measurement information management system which concerns on this embodiment. It is a flowchart which shows the procedure of the electric power measurement information storage processing performed by the electric power company server apparatus which concerns on this embodiment. It is a flowchart which shows the procedure of the DR execution processing performed by the electric power company server apparatus which concerns on this embodiment. It is a flowchart which shows the procedure of the process performed by the child agri-server apparatus which concerns on this embodiment. It is a flowchart which shows the procedure of the process performed by the GW of the consumer which concerns on this embodiment. It is a flowchart which shows the procedure of the baseline calculation process performed by the node apparatus of the distributed ledger system which concerns on this embodiment. It is a flowchart which shows the procedure of the achievement rate calculation process performed by the node apparatus of the distributed ledger system which concerns on this embodiment. It is a schematic diagram which shows the display example of the achievement rate calculation result by the electric power company server device. It is a schematic diagram which shows the display example of the achievement rate calculation result by the electric power company server device.

A specific example of the power measurement information management system according to the embodiment of the present invention will be described below with reference to the drawings. It should be noted that the present invention is not limited to these examples, and is indicated by the scope of claims, and is intended to include all modifications within the meaning and scope equivalent to the scope of claims.

<System overview>
FIG. 1 is a schematic diagram for explaining an outline of the electric power measurement information management system according to the present embodiment, and the application to the supply and demand adjustment of electric power is shown below as an example. In the electric power measurement information management system according to the present embodiment, in the power supply and demand adjustment, the electric power company 1, the parent agri 2, the child agri 3 and the consumer 4 send and receive information related to the electric power, and based on these information. It is a system that calculates the achievement rate of supply and demand adjustment.

Electricity needs to match the amount of power generation and consumption. In the past, the amount of power generation was adjusted to match the amount of consumption. In recent years, as a countermeasure against the expansion of the introduction of renewable energy such as solar power generation, whose power generation amount is difficult to control, and the situation where consumption is likely to exceed the amount of power generation that can be supplied, a method of adjusting the amount of power generation has also come to be used. rice field. In adjusting the supply and demand of electricity, reducing consumption can be regarded as equivalent to increasing power generation, and this decrease in demand is called "negawatt". In this supply-demand adjustment, in order to pay the price of "negawatt", it is required that the electricity consumption of the consumer is highly credible information without unauthorized alteration between the aggregator and the electric power company.

In addition, in the supply and demand adjustment of electric power, as a countermeasure for the situation where power generation exceeding the consumption is likely to occur, adjustment may be made by increasing the consumption, and this increase in consumption is called "Positive Watt". The power measurement information management system according to the present embodiment can handle both "negawatt" that reduces power consumption and "positive watt" that increases power consumption. In the present embodiment, the act of reducing or increasing the amount of electric power consumed by the consumer to make adjustments is referred to as "Demand Response", and is abbreviated as "DR" below. In addition, "negawatt" and "positive watt" are collectively called "adjustment power".

The electric power company 1 plays a role of adjusting the amount of power generation and consumption of electric power within the area under its jurisdiction. Although only one electric power company 1 is shown in FIG. 1, for example, in Japan, there is one electric power company 1 in each region such as Kanto or Kansai.

An aggregator is a business operator, organization, company, or the like that procures coordination power from consumer 4, and can also be called a trading member in supply and demand adjustment. Aggregators are intermediaries that control the balance of demand between utilities and consumers. The aggregator is also an intermediary that mediates the transaction of coordination power between the electric power company 1 and the consumer 4. The aggregator manages a plurality of consumers 4, and requests the required DR from the supervised consumer 4 at the timing when the electric power company 1 is needed. In the present embodiment, the aggregator has a two-layered hierarchical structure of a parent aggregator 2 and a child aggregator 3. The electric power company 1 purchases the adjusting power from the plurality of parent agris 2, each parent agri 2 purchases the adjusting power from the plurality of child agris 3, and each child agri 3 purchases the adjusting power from the plurality of consumers 4.

In addition, the electric power company 1 specifies a target value for DR (amount of negawatt or positive watt) and requests each parent agri 2 for DR, and the parent agri 2 that receives this request distributes the specified target value appropriately. Request DR to a plurality of child Agri 3. Similarly, the child agri 3 that has received the request from the parent agri 2 also appropriately distributes the target value specified by the parent agri 2, and requests the plurality of consumers 4 for DR with the target value specified. The consumer 4 who receives this request carries out DR with the designated target value as a target. The hierarchical structure of the aggregator does not have to be two layers, but may be one layer or three or more layers.

The consumer 4 consumes electric power, for example, in a general household, a company, a factory, a commercial facility, or the like, and provides adjustment power by increasing or decreasing the amount of demand. The consumer 4 may cooperate in the supply and demand adjustment by providing equipment such as a private power generation facility or a storage battery, for example.

For example, the electric power company 1 gives a request to the aggregator to carry out DR (reduction or increase of electric power demand) by the consumer 4. In the present embodiment, the electric power company 1 gives a DR request specifying the date and time and the target value of DR (amount of negawatt or positive watt) to the aggregator before the date and time when the DR is performed, and at the date and time when the DR is performed. When it is reached, a DR implementation command is given to the aggregator. The aggregator appropriately selects the consumer 4 who implements the DR in response to the DR request from the electric power company 1 from the plurality of consumers 4 under his / her control, and orders the implementation of the DR from the electric power company 1. Have the selected consumer 4 carry out the DR according to the above. After that, it is determined whether or not the result of the DR by the selected consumer 4 satisfies the DR request from the electric power company 1, and if the DR satisfying the DR request is performed, the electric power company 1 starts. A reward is paid to the aggregator. Further, the aggregator may pay a reward to the consumer 4 who has performed the DR.

FIG. 2 is a schematic diagram for explaining the configuration of the power measurement information management system according to the present embodiment. In FIG. 2, for simplification, only one electric power company 1, one parent agri 2, a child agri 3, and one consumer 4 are shown. The power measurement information management system according to the present embodiment includes the power company server device 10 of the power company 1, the parent agri server device 20 of the parent agri 2, the child agri server device 30 of the child agri 3, and the consumer 4. It is configured to include an installed smart meter 40 and a GW (gateway) 50.

The smart meter 40 is a device for measuring the amount of electric power consumed (or the amount of power generation) of the consumer 4. The smart meter 40 has a communication function, and can communicate with the electric power company server device 10 via two communication paths, a first communication path and a second communication path. The first communication path is a communication path that directly connects the smart meter 40 and the electric power company server device 10, and is a communication path that can also be called an A route in a power meter reading system using a smart meter. For example, the smart meter 40 transmits electric power measurement information related to electric power such as electric energy to the electric power company server device 10 at a cycle of once every 30 minutes via the first communication path. The electric power measurement information transmitted by the smart meter 40 may be, for example, the amount of electric power consumed by the consumer 4 per unit time, or the amount of electric power generated by the power generation facility installed in the consumer 4 per unit time. .. Further, the measured value may be sent to the electric power company server device 10 via the first communication path by a device other than the smart meter 40.

The second communication path is a communication path in which a plurality of intermediary devices such as a parent agri-server device 20, a child agri-server device 30, and a GW 50 are interposed between the power company server device 10 and the smart meter 40. .. The communication path connecting the smart meter 40 and the GW 50 uses a communication path that can be called a B route in the smart meter, and the second communication path is the smart meter 40 including the B route and the electric power company server device 10. It is a communication route between. The smart meter 40 transmits power measurement information such as electric energy to the GW 50 in a cycle shorter than the transmission cycle of the first communication path, for example, once every 1 to 30 minutes, in response to a request from the GW 50. do. The communication of the first communication path and the second communication path may be either wired communication or wireless communication. Further, in the present embodiment, the power measuring instrument for measuring the electric power of the consumer 4 is a smart meter 40, but the present invention is not limited to this, and a device such as a transducer may be used.

The electric power company server device 10 is, for example, a server device managed and operated by the electric power company 1, and for example, the amount of electric power consumed by the consumer 4 in one month from the information acquired from the smart meter 40 via the above-mentioned first communication path. Can be aggregated and the usage fee for the amount of power consumed can be billed. In this case, the electric power company server device 10 receives the information transmitted from the smart meter 40 of the consumer 4 via the first communication path, for example, once every 30 minutes.

Further, the electric power company server device 10 according to the present embodiment performs a process of transmitting a DR request requesting the implementation of DR in advance based on the date and time of the DR set in the supply and demand adjustment, a target value, and the like, and the date and time of the DR. When or just before that, the process of transmitting the DR implementation command is performed. In this case, the electric power company server device 10 transmits a DR request, a DR implementation command, and the like to the parent agri-server device 20 via the above-mentioned second communication path. The DR request and the DR implementation command transmitted by the electric power company server device 10 are transmitted from the parent agri-server device 20 to the child agri-server device 30, and are selected from a plurality of consumers 4 to be managed by the child agri-server device 30. The DR will be carried out by some of the customers 4 who have been asked.

The electric power company server device 10 can acquire information on the electric energy measured by the smart meter 40 of the consumer 4 via the second communication path described above in order to monitor the implementation status of the DR by the consumer 4. In this case, the electric power company server device 10 has a cycle shorter than the cycle of information transmission / reception in the first communication path, for example, once every 1 to 30 minutes, and the parent agri-server device 20 included in the second communication path. It requests the transmission of information such as the amount of electric power to the smart meter 40 of the consumer 4 via the child agri-server device 30 and the device such as the GW 50. In response to this request from the electric power company server device 10, the smart meter 40 inputs information including measured values such as power consumption of the consumer 4 to the GW 50 of the second communication path, the child agri-server device 30, and the parent agri-server device 20. Is transmitted to the electric power company server device 10.

The parent agri server device 20 is, for example, a server device managed and operated by the parent agri 2 and relays communication between the electric power company server device 10 and the child agri server device 30. For example, the parent agri-server device 20 receives power measurement information such as the amount of electric power measured by the smart meter 40 of the consumer 4 from the child agri-server device 30 and transmits it to the electric power company server device 10. At this time, the parent agri-server device 20 performs arithmetic processing such as aggregation of measured values (calculation of the total value) received from the plurality of child agri-server devices 30, and transmits the result of the arithmetic processing to the electric power company server apparatus 10. You may. Further, when the parent agri-server device 20 receives a DR request specifying the date and time and power value of the DR from the power company server device 10, or when it receives a DR implementation command, the parent agri-server device 20 receives the DR request or the DR. The implementation command is transmitted to the child agri-server device 30 of the child agri 3 managed by the parent agri 2. At this time, the parent agri-server device 20 appropriately divides the DR target power value included in the received DR request, and sends a DR request whose DR target is the divided power value to each child agri-server device 30. You may send it.

The child agri-server device 30 is, for example, a server device managed and operated by the child agri-server device 30, and relays communication between the parent agri-server device 20 and the GW 50. For example, the child agri-server device 30 receives power measurement information related to the electric energy and the like measured by the smart meter 40 from a plurality of consumers 4 managed by the child agri-server 3 from the GW 50 and transmits the power measurement information to the parent agri-server device 20. At this time, the child agri-server device 30 may perform arithmetic processing such as aggregation of measured values received from a plurality of GWs 50, and transmit the result of the arithmetic processing to the parent agri-server apparatus 20. Further, when the child agri-server device 30 receives a DR request specifying the DR date and time and the power value from the electric power company server device 10 via the parent agri-server device 20, a plurality of demands managed by the child agri-server device 3 are managed. The process of selecting the consumer 4 who implements the DR from the house 4 is performed. After that, when the child agri-server device 30 receives the DR implementation command from the electric power company server device 10 via the parent agri-server device 20, the child agri-server device 30 is directed to the consumer 4 who executes the predetermined DR. Send the DR implementation command.

The GW 50 is a device for relaying communication, and in the present embodiment, the GW 50 relays communication between the smart meter 40 and the child agri-server device 30. The GW 50 receives a request for information transmission from the power company server device 10 via the parent agri-server device 20 and the child agri-server device 30, and requests the smart meter 40 to transmit power measurement information such as measured values. .. The GW 50 receives the information transmitted by the smart meter 40 in response to this request, and transmits the received information to the electric power company server device 10 via the child agri-server device 30 and the parent agri-server device 20. In the present embodiment, the smart meter 40 transmits information such as measured values in response to a request from the electric power company server device 10, but the present embodiment is not limited to this. The request for information transmission to the smart meter 40 may be made by, for example, the parent agri-server device 20, the child agri-server device 30, or the GW 50. Further, the smart meter 40 does not transmit information in response to a request, but voluntarily one or a plurality of devices such as a child agri-server device 30, a parent agri-server device 20, and a power company server device 10 via the GW 50. Information may be transmitted to.

Further, in the present embodiment, each of the electric power company server device 10, the parent agri-server device 20, and the child agri-server device 30 constituting the power measurement information management system functions as node devices constituting the distributed ledger system. The distributed ledger system is a system that enhances the reliability of data by distributing and sharing a block chain in which blocks storing one or a plurality of data are connected by a plurality of node devices. In the present embodiment, the electric power company server device 10 performs processing as a node device, but the present invention is not limited to this, and the electric power company 1 includes a node device separately from the electric power company server device 10. The electric power company server device 10 may be configured to access the blockchain via this node device. The same applies to the parent agri 2 and the child agri 3. The node device constituting the distributed ledger system may include devices other than the electric power company server device 10, the parent agri-server device 20, and the child agri-server device 30 shown in FIG. Even if various devices not shown in FIG. 2, for example, a server device of a cloud service that provides information managed by the power measurement information management system according to the present embodiment, are included in the distributed ledger system as node devices. good.

Further, in the present embodiment, each consumer 4 does not have a node device constituting the distributed ledger system, and is a block chain via a node device (child agri server device 30) owned by a child agri 3 that manages itself. It shall be processed such as writing and reading data for. However, the consumer 4 may have a node device, and in this case, the GW 50 may have the function of the node device, or may have the node device separately from the GW 50. Further, the consumer 4 having the node device and the consumer 4 having no node device may coexist.

The distributed ledger system according to the present embodiment employs a technique called a private type or a consortium type, for example, "Hyperledger Fabric" or "Enterprise Ethereum". In the private distributed ledger system, a node device is set to conceal a part or all of the data handled by a plurality of node devices and store the data according to the concealment setting for the data. In the present embodiment, as shown in FIG. 1, the electric power company 1, the parent agri 2, the child agri 3, and the consumer 4 are layered in a tree structure. The node device of each layer can store the data written in the distributed ledger system by itself and the node device under its control (level below itself), and can use the stored data for its own processing. The node device of each layer does not store the data written to the distributed ledger system by the node device that is not under its control, and this data cannot be used for its own processing. The detailed configuration of the distributed ledger system will be described later.

As described above, when the date and time for performing DR and the target power value for DR are determined, the power company server device 10 is at a stage before the date and time for performing DR (for example, several hours to several days before). A DR request including information such as the date and time of DR and a power value is transmitted to the parent agri-server device 20. The DR request from the electric power company server device 10 is received by the child agri-server device 30 via the parent agri-server device 20. The child agri-server device 30 selects a consumer 4 who performs DR in response to a received DR request, and stores information about the selected consumer 4 in the distributed ledger system.

Further, when the date and time for performing DR is reached (or immediately before), the electric power company server device 10 transmits a DR implementation command for ordering the execution of DR to the parent agri-server device 20. The DR implementation command from the electric power company server device 10 is received by the child agri-server device 30 via the parent agri-server device 20. The child agri-server device 30 transmits a DR implementation command to the consumer 4 who has stored information in the distributed ledger system in advance as the consumer 4 who performs the DR. The DR implementation command from the child agri-server device 30 is received by the GW 50 of the consumer 4, for example, the consumer 4 is notified of the DR implementation, and the consumer 4 executes the DR.

In the power measurement information management system according to the present embodiment, the power company server device 10 is demanded via the second communication path, for example, once every 1 to 30 minutes while DR is being carried out. The smart meter 40 of the house 4 is requested to transmit information such as the measured electric power amount, and the information transmitted by the smart meter 40 in response to the request is received via the second communication path. The electric power company server device 10 stores the received information in its own database (a database different from the distributed ledger). In the present embodiment, the electric power company server device 10 requests the smart meter 40 to transmit information, but the present invention is not limited to this. For example, the parent agri-server device 20, the child agri-server device 30, the GW 50, or the like may request the smart meter 40 to transmit information. Further, for example, the smart meter 40 may voluntarily transmit information at a predetermined cycle instead of transmitting information in response to a request.

Further, the smart meter 40 provided in the consumer 4 in the present embodiment stores the measured electric power and the like, and for example, once every 30 minutes, the stored electric power measurement information such as the electric power amount is first stored. It is transmitted to the electric power company server device 10 via the communication path. The electric power company server device 10 stores the electric power measurement information received via the first communication path in the distributed ledger system. In the present embodiment, the smart meter 40 voluntarily transmits the power measurement information to the power company server device 10, but the present invention is not limited to this. For example, the electric power company server device 10 requests the smart meter 40 to transmit power measurement information via the first communication path, and the smart meter 40 requests the smart meter 40 to transmit the power measurement information via the first communication path. The requested information may be sent to.

The electric power company server device 10 performs a calculation process such as a DR achievement rate based on the information stored in the distributed ledger system at a predetermined timing after the DR is executed (for example, once a month). .. In the power measurement information management system according to the present embodiment, the process of calculating the achievement rate and the like is performed by a program operating on the distributed ledger system, a so-called smart contract. The electric power measurement information management system according to the present embodiment stores the electric power measurement information such as the electric energy measured by the smart meter 40 and the information about the consumer 4 who implements the DR in the distributed ledger system. It improves the reliability of information. Further, the power measurement information management system according to the present embodiment improves the transparency of the process by executing the process of calculating the achievement rate etc. based on this information by using the smart contract on the distributed ledger system. can do. Therefore, the power measurement information management system according to the present embodiment can improve the reliability of information such as the achievement rate calculated as the processing result of the smart contract.

Further, in the power measurement information management system according to the present embodiment, there is a demand that the power company server device 10 stores the power measurement information acquired from the smart meter 40 in the distributed ledger system, and the child agri server device 30 performs DR. The process of storing the information about the house 4 in the distributed ledger system is also performed by executing the smart contract that operates on the distributed ledger system.

In the present embodiment, the process of calculating the achievement rate of DR and the process of storing information in the distributed ledger system are performed by the smart contract of the distributed ledger system, but the present invention is not limited to this. The process of calculating the achievement rate of DR and the process of storing information in the distributed ledger system may be performed by a method different from that of the smart contract. For example, the electric power company server device 10 or another device may acquire the information stored in the distributed ledger system and perform a process of calculating the achievement rate of DR. In the present embodiment, a part or all of the processing performed by the smart contract of the distributed ledger system may be performed by the electric power company server device 10, the parent agri server device 20, the child agri server device 30, the GW 50, or a device other than these. ..

<Device configuration>
FIG. 3 is a block diagram showing a configuration of the electric power company server device 10 according to the present embodiment. The electric power company server device 10 according to the present embodiment includes a processing unit 11, a storage unit (storage) 12, a communication unit (transceiver) 13, and the like. In the present embodiment, it is assumed that the processing is performed by one server device, but a plurality of server devices may perform the processing in a distributed manner.

The processing unit 11 uses an arithmetic processing unit such as a CPU (Central Processing Unit), an MPU (Micro-Processing Unit) or a GPU (Graphics Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory) and the like. It is composed of. The processing unit 11 reads and executes the server program 12a stored in the storage unit 12, processes for transmitting a DR request, a DR execution command, and the like, and acquires information from the smart meter 40 of the consumer 4 and distributes the information. It performs various processes such as processing to be stored in the ledger system and processing as a node device of the distributed ledger system.

The storage unit 12 is configured by using a large-capacity storage device such as a hard disk. The storage unit 12 stores various programs executed by the processing unit 11 and various data necessary for the processing of the processing unit 11. In the present embodiment, the storage unit 12 stores the server program 12a executed by the processing unit 11. Further, in the present embodiment, the storage unit 12 stores the ledger information 100 distributed and shared by the plurality of node devices.

In the present embodiment, the server program 12a is provided in a form recorded on a recording medium 99 such as a memory card or an optical disk, and the electric power company server device 10 reads the server program 12a from the recording medium 99 and stores it in the storage unit 12. .. However, the server program 12a may be written in the storage unit 12, for example, at the manufacturing stage of the electric power company server device 10. Further, for example, the server program 12a may be acquired by the electric power company server device 10 by communication, which is distributed by another remote server device or the like. For example, in the server program 12a, the writing device may read out what is recorded on the recording medium 99 and write it in the storage unit 12 of the electric power company server device 10. The server program 12a may be provided in the form of distribution via the network, or may be provided in the form recorded on the recording medium 99.

FIG. 4 is a schematic diagram for explaining a configuration example of the ledger information 100. The ledger information 100 is information shared and stored by the node devices constituting the distributed ledger system, that is, the electric power company server device 10, the parent agri-server device 20, and the child agri-server device 30 in the present embodiment. In the present embodiment, the ledger information 100 includes a blockchain 101 and a state DB 102. The blockchain 101 is information having a data structure in which a plurality of blocks are connected in a chain shape. Each block contains at least one or more data and information that uniquely points to the previous block, for example, a hash value calculated based on the information of the previous block. The data included in each block in the present embodiment is data called "transaction".

The transaction is data generated when information is written to the ledger information 100, and includes information to be written. The state DB 102 is a database that stores information to be written or read, for example, an entity such as power measurement information in the present embodiment. That is, in the distributed ledger system according to the present embodiment, the substance of information such as power measurement information is not stored in the blockchain 101 but stored in the state DB 102, and the blockchain 101 writes information to the state DB 102. Information that becomes the history of is stored.

The blockchain 101 included in the illustrated ledger information 100 is shared and stored by all the node devices. When writing some data to the distributed ledger 100, by designating a node device that shares the data, it is possible to limit the node device having the state DB 102 and the distributed ledger 100 in which the data is stored. When the state DB 102 in which data is stored is restricted, the transaction stored in the block of the blockchain shared by all node devices is not the data itself to be written, but the data obtained by the procedure defined from the data. Information that cannot be back-calculated and is uniquely associated with the data, such as a hash value, is recorded. On the other hand, the data is directly transmitted to the node device designated as the data sharing destination without going through a transaction. Therefore, all the node devices can confirm that some data has been written on the distributed ledger system, but cannot know the contents of the data. On the other hand, the specific node device sharing the data can know from the information such as the hash value recorded in the transaction that the received data is legitimate.

Although not shown in FIG. 4, the node devices constituting the distributed ledger system share and store the code of the program operating on the distributed ledger system, that is, the so-called smart contract. Each node device can execute the program of this smart contract.

The communication unit 13 of the electric power company server device 10 communicates with various devices via a wired or wireless network. In the present embodiment, the communication unit 13 communicates with the smart meter 40 of the consumer 4 via the first communication path. Further, in the present embodiment, the communication unit 13 communicates with one or a plurality of parent agri-server devices 20. The communication unit 13 transmits the data given from the processing unit 11 to another device, and gives the data received from the other device to the processing unit 11.

The storage unit 12 may be an external storage device connected to the power company server device 10. Further, the electric power company server device 10 may be a multi-computer including a plurality of computers, or may be a virtual machine virtually constructed by software. Further, the electric power company server device 10 is not limited to the above configuration, and includes, for example, a reading unit for reading information stored in a portable storage medium, an input unit for receiving operation input, a display unit for displaying an image, and the like. But it may be.

Further, in the processing unit 11 of the electric power company server device 10 according to the present embodiment, the processing unit 11 reads out and executes the server program 12a stored in the storage unit 12, thereby causing the DR request unit 11a and the implementation command unit 11b. , Information acquisition unit 11c, achievement rate confirmation unit 11d, ledger processing unit 11e, etc. are realized in the processing unit 11 as software-like functional units.

When the electric power company 1 decides to request the DR to the consumer 4, the DR request unit 11a performs a process of transmitting the DR request to the parent agri server device 20 of the parent agri 2. The DR request includes information such as a DR request ID uniquely assigned to this DR, for example, the date and time when the DR is performed, and the target power value (negawatt or positive watt value) of the DR. obtain. The DR request unit 11a does not send a DR request to all of the plurality of parent agri-server devices 20 managed by the electric power company server device 10, but one or a plurality appropriately selected from the plurality of parent agri-server devices 20. A DR request may be sent to the parent agriserver device 20 of the. Further, when the DR request is transmitted to the plurality of parent agri-server devices 20, the date and time when the DR is executed may be the same, and the target power value may be different for each parent agri-server device 2.

The implementation command unit 11b performs a process of transmitting a DR implementation command to the parent agri-server device 20 of the parent agri 2 when the date and time for executing the DR is reached or immediately before (for example, a few minutes before). The DR implementation command includes at least a DR request ID uniquely assigned to the DR, and may include information such as the date and time when the DR is executed and the target power value. The implementation command unit 11b transmits a DR implementation command to at least the parent agri-server device 20 that has transmitted the DR request.

The information acquisition unit 11c requests the smart meter 40 of the consumer 4 to transmit power measurement information such as an electric power amount once every 30 minutes, for example, from the smart meter 40 via the first communication path. By receiving the transmitted power measurement information in the communication unit 13, a process of acquiring the information is performed. The information acquisition unit 11c stores information acquired from one or more smart meters 40 in the distributed ledger system. At this time, the information acquisition unit 11c stores the power measurement information acquired from the smart meter 40 in the power measurement information DB provided in the distributed ledger system.

FIG. 5 is a schematic diagram showing a configuration example of a power measurement information DB provided in the distributed ledger system. In the power measurement information management system according to the present embodiment, there are a plurality of power measurement information DBs that store the power measurement information acquired by the power company server device 10 from the smart meter 40 of the consumer 4 by using the distributed ledger system. Shared between node devices. The power measurement information DB according to the present embodiment includes the "parent agri ID" attached to the parent agri 2, the "child agri ID" attached to the child agri 3, and the "customer ID" attached to the consumer 4. In association with, the power measurement information including the information such as the power amount measured by the smart meter 40 of the consumer 4 and the measurement date and time is stored. The power measurement information DB is a database logically constructed by using the state DB 102 of the ledger information 100 shown in FIG. To register the power measurement information in the power measurement information DB, the power company server device 10 inputs the "parent agri ID", "child agri ID", "customer ID" and "power measurement information" to the distributed ledger system. It is done by executing a smart contract.

In the present embodiment, the information that identifies the consumer is referred to as "customer ID", but this may be any information. As the "customer ID", for example, information such as a "supply point identification number" or a "customer number" described in a conventional meter reading slip can be used. These pieces of information can also be regarded as information that identifies the smart meter 40, that is, a "smart meter ID", and can be regarded as "customer ID" = "smart meter ID". On the other hand, for example, when one consumer has a plurality of bases (houses, buildings, factories, etc.) and it is necessary to consider that a smart meter 40 is installed in each base, "Customer ID". It is preferable to distinguish between "smart meter ID" and "smart meter ID". In this case, "smart meter ID" is stored in the first power measurement information DB 12b, or "customer ID" and "smart meter ID". You may memorize both of them.

After the execution of DR is completed, the achievement rate confirmation unit 11d performs a process of calculating the achievement rate of DR of the parent agri 2 and / or the child agri 3 with respect to the target value of DR, for example, once a month. .. In the power measurement information management system according to the present embodiment, the achievement rate is calculated by the smart contract of the distributed ledger system, and the achievement rate confirmation unit 11d distributes the DR date and time and information such as the DR ID that identifies the DR as inputs. By executing the smart contract of the ledger system and acquiring the achievement rate calculated by the smart contract, the process of calculating the achievement rate of the parent agri 2 and / or the child agri 3 is performed. Further, the achievement rate confirmation unit 11d performs a process of notifying, for example, the operator of the electric power company 1 of the calculated achievement rate. In the present embodiment, the process of calculating the achievement rate is performed by the smart contract of the distributed ledger system, but the present invention is not limited to this, and for example, the electric power company server device 10 obtains necessary information from the distributed ledger system. It may be acquired and the achievement rate may be calculated.

The ledger processing unit 11e performs processing as a node device of the distributed ledger system, that is, writing and reading of information to the distributed ledger system, execution of a smart contract, and the like. For example, the ledger processing unit 11e stores information in the state DB 102 of the distributed ledger system by executing a smart contract, and adds a block including a transaction indicating that the processing for storing this information has been performed to the blockchain 101. Perform the processing. Further, the ledger processing unit 11e performs a process of storing the same information in its own state DB 102 and blockchain 101 in order to share the information stored in the state DB 102 and the blockchain 101 by another node device.

If one of the node devices constituting the distributed ledger system stores information in the state DB 102 and adds a block to the blockchain 101, these need to be reflected in the other node devices. The process of reflecting the addition of blocks to all distributed and shared blockchains, the so-called consensus building process, is widely adopted in distributed ledger systems such as crypto assets in the case of public distributed ledger systems, for example. Methods such as "of Work" or "Proof of Stake" can be adopted, and in these methods, consensus building by an unspecified number of node devices is the mainstream. On the other hand, in the case of a private distributed ledger system, for example, a predetermined method is adopted in which one or more node devices determine a block to be added to the block chain and instruct each node device to add the determined block. can do. Since the processing related to the distributed sharing of information in the distributed ledger system is an existing technique, detailed processing will be omitted in this specification.

FIG. 6 is a block diagram showing the configuration of the parent agri-server device 20 according to the present embodiment. The parent agri-server device 20 according to the present embodiment includes a processing unit (processor) 21, a storage unit (storage) 22, a communication unit (transceiver) 23, and the like. In the present embodiment, it is assumed that the processing is performed by one server device, but a plurality of server devices may perform the processing in a distributed manner. The processing unit 21 is configured by using an arithmetic processing device such as a CPU, MPU or GPU, a ROM, a RAM, and the like. By reading and executing the server program 22a stored in the storage unit 22, the processing unit 21 is a child agri-server that manages requests for power measurement information, DR requests, execution commands, etc. received from the power company server device 10. Various processes such as a process of transmitting to the device 30, a process of transmitting the power measurement information of the consumer 4 received from the child agri-server device 30 to the power company server device 10, and a process as a node device constituting the distributed ledger system. Perform processing.

The storage unit 22 is configured by using a large-capacity storage device such as a hard disk. The storage unit 22 stores various programs executed by the processing unit 21 and various data required for processing by the processing unit 21. In the present embodiment, the storage unit 22 stores the server program 22a executed by the processing unit 21. Further, in the present embodiment, the storage unit 22 stores the ledger information 100 distributed and shared by the plurality of node devices constituting the distributed ledger system.

In the present embodiment, the server program 22a is provided in a mode recorded on a recording medium 97 such as a memory card or an optical disk, and the parent agri-server device 20 reads the server program 22a from the recording medium 97 and stores it in the storage unit 22. .. However, the server program 22a may be written to the storage unit 22 at the manufacturing stage of the parent agri-server device 20, for example. Further, for example, in the server program 22a, the parent agri-server device 20 may acquire what is distributed by another remote server device or the like by communication. For example, in the server program 22a, the writing device may read what was recorded on the recording medium 97 and write it in the storage unit 22 of the parent agri-server device 20. The server program 22a may be provided in the form of distribution via the network, or may be provided in the form recorded on the recording medium 97.

The communication unit 23 communicates with various devices via a wired or wireless network. In the present embodiment, the communication unit 23 communicates with the child agri-server device 30 and the power company server device 10 via a network such as the Internet, a mobile phone communication network, and a wireless LAN. The communication unit 23 transmits the data given from the processing unit 21 to another device, and gives the data received from the other device to the processing unit 21.

The storage unit 22 may be an external storage device connected to the parent agri-server device 20. Further, the parent agri-server device 20 may be a multi-computer including a plurality of computers, or may be a virtual machine virtually constructed by software. Further, the parent agri-server device 20 is not limited to the above configuration, and includes, for example, a reading unit for reading information stored in a portable storage medium, an input unit for receiving operation input, a display unit for displaying an image, and the like. But it may be.

Further, in the processing unit 21 of the parent agri-server device 20 according to the present embodiment, the processing unit 21 reads out and executes the server program 22a stored in the storage unit 22, so that the DR request unit 21a and the implementation command unit 21b are executed. , The information relay unit 21c, the ledger processing unit 21d, and the like are realized in the processing unit 21 as software-like functional units.

The DR request unit 21a receives the DR request transmitted from the electric power company server device 10, and performs a process of transmitting the DR request to the child agri server device 30 of the child agri 3 under control. The DR request includes information such as the DR request ID, the date and time of the DR, and the target power value of the DR, and the DR request unit 21a describes the DR request ID and the date and time of the DR included in the received DR request. A DR request that maintains the received content, divides the target power value of the DR included in the received DR request appropriately according to the number of child agri 3 under control, and sends it to each child agri server device 30. To generate. For example, if the target power value is set to 100 kW in the DR request received from the power company server device 10 and there are five controlled child agris 3, the target power value of 100 kW is set to the five child agris 3. The DR request unit 21a creates a DR request with a target value of 20 kW by dividing it into equal parts, and transmits the DR request to the five child agri-server devices 30. The DR request unit 21a may not divide the target power value into equal parts, but may appropriately divide the target power value and set a different target power value for each child agri 3.

The implementation command unit 21b receives the DR implementation command transmitted from the electric power company server device 10, and performs a process of transmitting the implementation command to the child agri server device 30 of the child agri 3 under control.

The information relay unit 21c receives a transmission request of power measurement information including the electric power amount by the smart meter 40 of the consumer 4 from the power company server device 10, and manages the corresponding consumer 4. The child of the child Agri 3. Performs a process of transmitting to the agriserver device 30. Further, the information relay unit 21c receives the power measurement information transmitted by the smart meter 40 of the consumer 4 from the child agri-server device 30 in response to this request, and transmits the received power measurement information to the power company server device 10. I do. The information relay unit 21c may also relay information transmitted / received between the electric power company server device 10 and the child agri-server device 30 other than these by transmitting the information received from one to the other.

The ledger processing unit 21d performs processing as a node device of the distributed ledger system, that is, writing and reading information to the distributed ledger system, executing a smart contract, and the like. For example, the ledger processing unit 21d stores information in the state DB 102 of the distributed ledger system by executing a smart contract, and adds a block including a transaction indicating that the processing for storing this information has been performed to the blockchain 101. Perform the processing. Further, the ledger processing unit 21d performs a process of storing the same information in its own state DB 102 and blockchain 101 in order to share the information stored in the state DB 102 and the blockchain 101 by another node device.

FIG. 7 is a block diagram showing the configuration of the child agri-server device 30 according to the present embodiment. The child agri-server device 30 according to the present embodiment includes a processing unit (processor) 31, a storage unit (storage) 32, a communication unit (transceiver) 33, and the like. In the present embodiment, it is assumed that the processing is performed by one server device, but a plurality of server devices may perform the processing in a distributed manner. The processing unit 31 is configured by using an arithmetic processing unit such as a CPU, MPU or GPU, a ROM, a RAM, and the like. The processing unit 31 reads and executes the server program 32a stored in the storage unit 32 to determine the consumer 4 to perform the DR, and transmits the information received from the parent agri-server device 20 to the consumer 4. Processing, processing for transmitting information received from the consumer 4 to the parent agri-server device 20, and processing as a node device constituting the distributed ledger system are performed.

The storage unit 32 is configured by using a large-capacity storage device such as a hard disk. The storage unit 32 stores various programs executed by the processing unit 31 and various data required for processing by the processing unit 31. In the present embodiment, the storage unit 32 stores the server program 32a executed by the processing unit 31. Further, in the present embodiment, the storage unit 32 stores the ledger information 100 distributed and shared by the plurality of node devices constituting the distributed ledger system.

In the present embodiment, the server program 32a is provided in a mode recorded on a recording medium 98 such as a memory card or an optical disk, and the child agri-server device 30 reads the server program 32a from the recording medium 98 and stores it in the storage unit 32. .. However, the server program 32a may be written to the storage unit 32, for example, at the manufacturing stage of the child agri-server device 30. Further, for example, in the server program 32a, the child agri-server device 30 may acquire what is distributed by another remote server device or the like by communication. For example, in the server program 32a, the writing device may read out what is recorded on the recording medium 98 and write it in the storage unit 32 of the child agri-server device 30. The server program 32a may be provided in a mode of distribution via a network, or may be provided in a mode recorded on a recording medium 98.

The communication unit 33 communicates with various devices via a wired or wireless network. In the present embodiment, the communication unit 33 communicates with the GW 50 of the consumer 4 and the parent agri-server device 20 via a network such as the Internet, a mobile phone communication network, and a wireless LAN. The communication unit 33 transmits the data given from the processing unit 31 to another device, and gives the data received from the other device to the processing unit 31.

The storage unit 32 may be an external storage device connected to the child agri-server device 30. Further, the child agri-server device 30 may be a multi-computer including a plurality of computers, or may be a virtual machine virtually constructed by software. Further, the child agri-server device 30 is not limited to the above configuration, and includes, for example, a reading unit for reading information stored in a portable storage medium, an input unit for receiving operation input, a display unit for displaying an image, and the like. But it may be.

Further, in the processing unit 31 of the child agri-server device 30 according to the present embodiment, the processing unit 31 reads out and executes the server program 32a stored in the storage unit 32, whereby the consumer determination unit 31a and the implementation command unit are executed. The 31b, the information relay unit 31c, the ledger processing unit 31d, and the like are realized in the processing unit 31 as software-like functional units.

When the DR request from the electric power company server device 10 is received via the parent agri-server device 20, the consumer determination unit 31a performs a process of determining the consumer 4 to perform DR in response to the DR request. The consumer determination unit 31a determines one or a plurality of consumers 4 to carry out the DR from among the plurality of consumers 4 managed by the child agri 3. Any method may be used to determine the consumer 4 for carrying out the DR. Further, the child agri server device 30 may not make the determination of the consumer 4, but the operator of the child agri 3 may make the determination. In this case, the consumer determination unit 31a requests the operator to determine the consumer 4 in response to the DR request, and accepts the operation of determining the consumer 4 from the operator.

Further, the consumer determination unit 31a performs a process of storing the determined information regarding the consumer 4 in the distributed ledger system. At this time, the consumer determination unit 31a determines the DR request ID assigned to the DR to be implemented by executing the smart contract that performs the process of registering the information of the consumer 4 that implements the DR. The information associated with the consumer ID of the consumer 4 is stored in the distributed ledger system.

In the power measurement information management system according to the present embodiment, the DR consumer DB that stores information such as the DR request ID and the consumer ID is shared among the plurality of node devices by using the distributed ledger system. FIG. 8 is a schematic diagram showing a configuration example of the DR consumer DB. The DR consumer DB according to this embodiment includes "DR request ID", "parent agri ID", "child agri ID", "customer ID", "baseline", "demand actual value", and "DR actual value". Information such as "value" and "achievement rate" is stored in association with each other. The DR consumer DB is a database logically constructed by using the state DB 102 of the ledger information 100 shown in FIG. Each piece of information in the DR consumer DB is stored when the child agri-server device 30 and the electric power company server device 10 execute a smart contract of the distributed ledger system.

The "DR request ID", "parent agri ID", "child agri ID" and "customer ID" of the DR consumer DB are the consumers who carry out the DR determined by the consumer determination unit 31a of the child agri server device 30. This is the information registered based on 4. For example, the consumer determination unit 31a determines the consumer 4 to perform the DR based on the DR request from the power company server device 10, the DR request ID included in the DR request, and the determined consumer ID of the consumer 4. And, by inputting its own child Agri ID and the parent Agri ID of the parent Agri 2 that manages it and executing the smart contract of the distributed ledger system, these information are registered in the DR consumer DB.

Further, the "baseline" of the DR consumer DB is the electric power [kW] that is the reference of the DR of the consumer 4, and is the electric power that is predicted to be consumed by the consumer 4 if the DR is not performed. In the present embodiment, the baseline of each consumer 4 is calculated based on the power measurement information stored in the power measurement information DB of the distributed ledger system. For example, the average value of power consumption of the consumer 4 in a predetermined period such as one week or one month in the past can be used as a baseline. The baseline may be calculated by any calculation method based on any information. Further, in the present embodiment, the baseline is calculated by the smart contract of the distributed ledger system. The consumer determination unit 31a of the child agri-server device 30 registers information about the consumer 4 that implements DR in the DR consumer DB of the distributed ledger system as described above, and then calculates the baseline of the distributed ledger system. Execute the contract. By executing the smart contract, for example, the power consumption of the consumer 4 to be calculated is extracted from the power measurement information DB of the distributed ledger system, the average power consumption of the predetermined period is calculated, and the DR consumer DB is used as the baseline. To be registered in.

Further, the "demand actual value", "DR actual value" and "achievement rate" of the DR consumer DB are information registered after the DR is executed. The “actual demand value” is the electric power [kW] consumed by the consumer 4 during the DR implementation period. The “DR actual value” is a value corresponding to the difference between the baseline and the actual demand value, and is the electric power [kW] DR by the consumer 4. That is, "DR actual value = baseline-demand actual value". The "achievement rate" is a value indicating the ratio of the actual DR value to the target value of DR, and is information indicating how much the consumer 4 has achieved the target of DR. In this embodiment, the "demand actual value", "DR actual value" and "achievement rate" are calculated and calculated by the achievement rate confirmation unit 11d of the electric power company server device 10 executing the smart contract of the distributed ledger system. The result is registered in the DR consumer DB. However, these information may not be stored in the distributed ledger system, and may be stored only in, for example, the storage unit 12 of the power company server device 10.

In the present embodiment, the process of calculating the above baseline and DR actual value is performed by executing the smart contract of the distributed ledger system. However, the process of calculating the baseline and the actual DR value may be performed by a method other than the smart contract. For example, the process of calculating the baseline and the actual DR value may be performed by a program executed by a device such as the child agri-server device 30 or the electric power company server device 10.

The implementation command unit 31b receives the DR implementation command transmitted from the electric power company server device 10, and performs a process of transmitting the DR implementation command to the GW 50 of the consumer 4. The implementation command unit 31b receives the DR implementation command transmitted by the electric power company server device 10 via the parent agri-server device 20. The DR implementation command includes a DR request ID, and when the implementation command is received, the implementation command unit 31b acquires the DR request ID included in the implementation command and executes the DR related to the acquired DR request ID. Then, the DR implementation command is transmitted to the GW50 of the consumer 4 which has been determined in advance.

The information relay unit 31c receives a power measurement information transmission request from the electric power company server device 10 to the smart meter 40 of the consumer 4 via the parent agri-server device 20 and transmits the transmission request to the corresponding GW 50 of the consumer 4. Perform the processing. Further, the information relay unit 31c receives the power measurement information transmitted by the smart meter 40 of the consumer 4 from the GW 50 in response to this request, and performs a process of transmitting the received power measurement information to the parent agri-server device 20. The information relay unit 21c may also relay information transmitted / received between the parent agri-server device 20 and the GW 50 other than these by transmitting the information received from one to the other.

The ledger processing unit 31d performs processing as a node device of the distributed ledger system, that is, writing and reading information to the distributed ledger system, executing a smart contract, and the like. For example, the ledger processing unit 31d stores information in the state DB 102 of the distributed ledger system by executing a smart contract, and adds a block including a transaction indicating that the processing for storing this information has been performed to the blockchain 101. Perform the processing. As a result, the ledger processing unit 31d can perform a process of storing information associated with the DR request ID and the consumer ID in the DR consumer DB by executing the smart contract. Further, the ledger processing unit 31d performs a process of storing the same information in its own state DB 102 and blockchain 101 in order to share the information stored in the state DB 102 and the blockchain 101 by another node device.

FIG. 9 is a block diagram showing the configurations of the smart meter 40 and the GW 50 according to the present embodiment. The smart meter 40 according to the present embodiment includes a measurement unit 41, a processing unit 42, a storage unit 43, a first communication unit 44, a second communication unit 45, and the like. The smart meter 40 is a device installed in a facility such as a house, a building, or a factory, and measures the amount of electric power consumed or produced in this facility. The measuring unit 41 measures the amount of electric power consumed or produced in the facility where the smart meter 40 is installed. The measurement unit 41 measures the amount of electric power at a cycle of, for example, once every few seconds to several minutes, and gives the measurement result to the processing unit 42.

The processing unit 42 is configured by using, for example, a CPU or an IC (Integrated Circuit) such as a dedicated ASIC (Application Specific Integrated Circuit). The processing unit 42 performs a process of transmitting the amount of electric power given by the measuring unit 41 in response to a request from an external device. The processing unit 42 temporarily stores information on the amount of electric power given by the measurement unit 41 in the storage unit 43. The processing unit 42 aggregates the amount of electric power stored in the storage unit 43, and first communicates the electric power measurement information including the aggregated electric energy to the electric power company server device 10 in a predetermined cycle (for example, once every 30 minutes). Send via route. At this time, the processing unit 42 calculates the amount of electric power consumed or produced in a predetermined cycle by adding up a plurality of measurement results of the amount of electric power measured in a cycle of several seconds to several minutes, and measures the total value. The power measurement information included as a result is transmitted to the power company server device 10.

Further, the processing unit 42 transmits the electric power measurement information including the aggregated measurement results to the electric power company server device 10 at a predetermined cycle (for example, once every 1 minute to 30 minutes) via the second communication path. The cycle of information transmission via the second communication path is often set shorter than the cycle of information transmission via the first communication path described above, but it may be set longer. Further, the processing unit 42 may spontaneously transmit information via the first communication path and the second communication path from the smart meter 40, or may be performed in response to a request from another device.

The storage unit 43 is configured by using a non-volatile memory element such as a flash memory or an EEPROM (Electrically Erasable Programmable Read Only Memory). The storage unit 43 stores various information used for the processing of the processing unit 42. For example, the storage unit 43 temporarily stores the electric power measured by the measurement unit 41 until the information transmission via the first communication path and the second communication path is completed. The first communication unit 44 and the second communication unit 45 are each configured by using an IC such as a transceiver, and perform communication according to a predetermined communication standard. The first communication unit 44 communicates with the electric power company server device 10 via the first communication path. The second communication unit 45 communicates with the electric power company server device 10 via the second communication path. The first communication unit 44 and the second communication unit 45 transmit the information given from the processing unit 42 to another device, and give the information received from the other device to the processing unit 42. The first communication unit 44 and the second communication unit 45 may communicate by wire or wirelessly.

The GW 50 according to the present embodiment is a device installed in a facility such as a house, a building, or a factory in which a smart meter 40 is installed, and relays communication. The GW 50 includes a processing unit (processor) 51, a storage unit (storage) 52, a first communication unit (transceiver) 53, a second communication unit (transceiver) 54, and the like. The processing unit 51 is configured by using an arithmetic processing unit such as a CPU or an MPU. The processing unit 51 can perform various processes by reading and executing the program stored in the storage unit 52. In the present embodiment, the processing unit 51 reads and executes the program 52a stored in the storage unit 52, thereby performing various processing such as relaying communication between the smart meter 40 and the child agri-server device 30. I do.

The storage unit 52 is configured by using a non-volatile memory element such as a flash memory or EEPROM. The storage unit 52 stores various programs executed by the processing unit 51 and various data required for processing by the processing unit 51. In the present embodiment, the storage unit 52 stores the program 52a executed by the processing unit 51. The program 52a may be written to the storage unit 52, for example, at the manufacturing stage of the GW 50, or may be acquired by the GW 50 by communication, for example, to be distributed by a remote server device, or may be, for example, a memory card or an optical disk. The program recorded on the recording medium such as the above may be read by the GW 50 and stored in the storage unit 52, or, for example, the program recorded on the recording medium may be read by the writing device and written in the storage unit 52 of the GW 50. The program 52a may be provided in a mode of distribution via a network, or may be provided in a mode recorded on a recording medium.

The first communication unit 53 and the second communication unit 54 are each configured by using an IC such as a transceiver, and perform communication according to a predetermined communication standard. The first communication unit 53 communicates with the smart meter 40 via the B route. The second communication unit 54 communicates with the child agri-server device 30 via a network such as the Internet, a mobile phone communication network, and a wireless LAN (Local Area Network). The first communication unit 53 and the second communication unit 54 transmit the information given from the processing unit 51 to another device, and give the information received from the other device to the processing unit 51. The first communication unit 53 and the second communication unit 54 may communicate by wire or wirelessly.

Further, in the GW 50 according to the present embodiment, the information relay unit 51a and the like are realized as software-like functional units in the processing unit 51 by reading and executing the program 52a stored in the storage unit 52 by the processing unit 51. .. The information relay unit 51a receives a power measurement information transmission request from the electric power company server device 10 to the smart meter 40 of the consumer 4 via the parent agri-server device 20 and the child agri-server device 30, and then to the smart meter 40. Perform the process of sending. Further, the information relay unit 51a receives the power measurement information transmitted by the smart meter 40 in response to this request, and performs a process of transmitting the received power measurement information to the child agri-server device 30. The information relay unit 51a may also relay information transmitted / received between the child agri-server device 30 and the smart meter 40 other than these by transmitting the information received from one to the other.

<Power measurement information management processing>
In the power measurement information management system according to the present embodiment, the distributed ledger system is configured by the power company server device 10, the parent agri server device 20, and the child agri server device 30 functioning as node devices as described above. .. In the distributed ledger system, a plurality of node devices are connected via a peer-to-peer network, and the information is distributed and shared by the plurality of node devices to improve the reliability of the information. In the present embodiment, expressions such as "distributed sharing" or "distributed sharing" represent a state in which a plurality of node devices store information having substantially the same content. "Substantially the same" means that the contents of multiple pieces of information may be partially different at a certain point in time, but after a certain period of time, the differences are resolved and the contents are the same. It is an expression including the fact that, even if it is simply described as "same" in the following, this "substantially the same" is included.

In the present embodiment, the DR consumer DB shown in FIG. 5 and the power measurement information DB shown in FIG. 8 are logically constructed in the distributed ledger system and distributed and shared among a plurality of node devices. The reliability of the information is increased. In the distributed ledger system such as Hyperledger Fabric and Enterprise Ethereum, it is possible to limit the range of the node device in which the information is stored when the information is stored, and the distributed ledger system according to the present embodiment is also the same. The range of node devices stored for information is limited. In the distributed ledger system according to the present embodiment, information such as "command ID", "parent agri ID", "child agri ID" and "customer ID" of the above-mentioned DR consumer DB is used as public information. , All node devices hold that information.

On the other hand, the information such as "baseline", "demand actual value" and "DR actual value" of the above-mentioned DR consumer DB and each information of the power measurement information DB are regarded as private (non-public) information, respectively. The node device stores only information about the consumer 4 under its control. That is, the electric power company server device 10 stores the power measurement information of all the consumers 4, and the parent agri-server device 20 stores the power measurement information of the consumer 4 managed by the child agri-server device 30 managed by itself. The child agri-server device 30 stores the power measurement information of the consumer 4 managed by the child agri-server device 30. In the present embodiment, regarding the state DB 102 of the ledger information 100 distributed and shared by the distributed ledger system, the state DB 102 in which the information is recorded by limiting the node device that stores the information at the time of storing the information is provided. Restrict. The power measurement information management system may also handle information such as "command ID", "parent agri ID", "child agri ID", and "customer ID" of the DR consumer DB as private information.

In the power measurement information management system according to the present embodiment, the power company server device 10 requests the smart meter 40 of the consumer 4 to transmit the power measurement information via the first communication path, for example, once every 30 minutes. Then, in response to this request, the smart meter 40 transmits the power measurement information to the power company server device 10 via the first communication path. The electric power company server device 10 uses the power measurement information received from the smart meter 40 as a consumer ID attached to the consumer 4, a child agri ID attached to the child agri 3 that manages the consumer 4, and the child. It is stored in the power measurement information DB of the distributed ledger system in association with the parent agri ID attached to the parent agri 2 that manages the agri 3.

Further, when the execution of the DR is decided, the electric power company server device 10 sends a DR request including information such as a DR request ID for identifying the DR, a date and time for executing the DR, and a target value of the DR to the second communication path. Send via. The child agri-server device 30 that has received this DR request determines the consumer 4 to perform the DR, and associates the DR request ID, the parent agri-ID, the child agri-ID, and the consumer ID with the DR consumer of the distributed ledger system. Store in the DB. Further, the child agri-server device 30 executes the smart contract of the distributed ledger system to calculate the baseline of each consumer 4.

After the execution of the DR, the electric power company server device 10 according to the present embodiment performs a process of confirming the result of the DR, for example, once a month. At this time, the electric power company server device 10 calculates an achievement rate indicating, for example, how much the target value of DR has been achieved for the parent agri 2 and the child agri 3 for which DR has been requested. In the present embodiment, the process of calculating the achievement rate of the parent agri 2 and the child agri 3 is implemented as a smart contract of the distributed ledger system. The electric power company server device 10 inputs, for example, a DR request ID and a parent agri ID or a child agri ID for which the achievement rate is to be calculated, and executes a smart contract of the distributed ledger system.

The node device of the distributed ledger system (electric power company server device 10 or node device having power measurement information necessary for calculating the achievement rate) executes a smart contract and achieves the DR achievement rate of the parent agri 2 or the child agri 3. Is calculated. At this time, the node device refers to the DR consumer DB of the distributed ledger system, and performs DR corresponding to the DR request ID among the consumers 4 managed by the parent agri 2 or the child agri 3 to be calculated. Or identify a plurality of consumers 4. The node device acquires the power consumption of each identified consumer 4 during the period in which DR is performed from the power measurement information stored in the power measurement information DB, and uses the acquired power consumption as the actual demand value in the DR consumer DB. Remember in. The node device calculates the difference between the baseline and the actual demand value for each consumer 4 as the actual DR value, and stores the calculated DR actual value in the DR consumer DB. Further, the node device aggregates (totals) the DR actual values for the consumer 4 managed by the parent agri 2 or the child agri 3 to be calculated, and the DR target value and the aggregated DR actual value for the parent agri 2 or the child agri 3. Based on the above, the achievement rate is calculated by performing the following formula (1).

Achievement rate = DR actual value / target value ... (1)

The electric power company server device 10 acquires the calculation result of the achievement rate by the distributed ledger system. The electric power company server device 10 notifies, for example, the operator of the electric power company 1 of the achievement rate of the acquired parent agri 2 and child agri 3. Further, the distributed ledger system stores the calculated information such as the DR actual value and the achievement rate in, for example, the DR consumer DB provided in the ledger information 100. However, these information are not recorded in the distributed ledger system, and may be stored only in the storage unit 12 or the like of the electric power company server device 10.

In the present embodiment, the achievement rate of DR is calculated and notified, but this is an example, and any information may be notified as long as the result of DR can be determined. .. As a result of DR, for example, the actual DR value may be notified, for example, whether or not the target has been achieved may be notified, or information other than these may be notified. Further, the method for calculating the achievement rate is not limited to the one based on the above equation (1), and various methods may be adopted.

Further, in the present embodiment, processing such as baseline calculation and achievement rate calculation is performed by executing the smart contract of the distributed ledger system, but the present invention is not limited to this. Processing such as calculation of the baseline and calculation of the achievement rate may be performed by a program executed by a device such as a power company server device 10, a parent agri-server device 20, or a child agri-server device 30. The achievement rate is an example of a format for notifying the operator, etc., and provides the operator, etc. with information other than the power measurement information, the baseline, the actual demand value, the actual DR value, or the achievement rate calculated from these. You may notify.

FIG. 10 is a schematic diagram for explaining the power measurement information management process performed by the power measurement information management system according to the present embodiment. In this figure, the relay of information by the parent agri 2 is omitted. In the power measurement information management system according to the present embodiment, when the power company 1 decides to implement the DR, the power company server device 10 includes information such as a DR request ID, a date and time of the DR, and a target value of the DR. Send the request. This DR request is received by the child agri-server device 30 of the child agri 3 via the parent agri-server device 20 of the parent agri 2. The child agri-server device 30 determines one or a plurality of consumers 4 to perform the DR in response to the reception of the DR request. The child agri-server device 30 has a determined consumer ID of the consumer 4, a child agri ID of the child agri 3 that manages the consumer 4, and a parent agri ID of the parent agri 2 that manages the child agri 3. , Stored in the DR consumer DB of the ledger information 100 of the distributed ledger system in association with the DR request ID. At this time, the child agri-server device 30 registers the information about the baseline of the consumer 4 who implements the DR in the DR consumer DB of the distributed ledger system.

After that, when the date and time for executing the DR is reached (or immediately before that), the electric power company server device 10 transmits the DR implementation command. The implementation command includes information on the DR request ID. This implementation command is received by the child agri-server device 30 via the parent agri-server device 20. The child agri-server device 30 that has received the implementation command transmits the implementation command to the GW 50 of the consumer 4 that implements the DR. For example, the GW 50 notifies the consumer 4 that the implementation command has been received, and the consumer 4 implements the DR.

The power company server device 10 of the power company 1 transmits power measurement information to the consumer 4 via the parent agri-server device 20 and the child agri-server device 30 of the second communication path, for example, once a minute. Request. Upon receiving the information request, the GW 50 of the consumer 4 acquires the power measurement information including the measured value of the electric power from the smart meter 40, and via the child agri-server device 30 and the parent agri-server device 20 of the second communication path. The power measurement information is transmitted to the power company server device 10. The request for the power measurement information by the power company server device 10 and the transmission of the power measurement information by the smart meter 40 in response to the request are repeated, for example, once a minute. The electric power company server device 10 can monitor the implementation status of DR and the like based on the electric power measurement information acquired from the smart meter 40.

In the present embodiment, the electric power company server device 10 requests the transmission of the power measurement information of the smart meter 40 via the second communication path, and the smart meter 40 and the GW 50 respond to this request via the second communication path. The electric power measurement information is transmitted to the electric power company server device 10, but the present invention is not limited to this. For example, the transmission request of the power measurement information may be made by the parent agri-server device 20, the child agri-server device 30, the GW 50, or the like to the smart meter 40. Further, for example, the smart meter 40 may not transmit the power measurement information in response to a request, but may spontaneously transmit the power measurement information at a predetermined cycle.

Further, the smart meter 40 transmits power measurement information to the power company server device 10 via the first communication path, for example, once every 30 minutes regardless of whether or not DR is performed. The electric power company server device 10 manages the customer ID of the consumer 4, the child agri ID of the child agri 3 that manages the consumer 4, and the child agri 3 of the power measurement information received from the smart meter 40. It is stored in the power measurement information DB of the distributed ledger system in association with the parent agri ID of the parent agri 2.

In the present embodiment, the smart meter 40 spontaneously transmits the power measurement information to the power company server device 10 via the first communication path at a predetermined cycle, but the present invention is not limited to this. For example, the electric power company server device 10 requests the transmission of the power measurement information of the smart meter 40 via the first communication path, and in response to this request, the smart meter 40 and the GW 50 power the power measurement information via the first communication path. It may be transmitted to the company server device 10.

After that, for example, once a month, the electric power company 1 performs a process of confirming the achievement rate regarding DR before paying the rewards and the like related to DR to the parent agri 2, the child agri 3, the consumer 4, and the like. conduct. The electric power company server device 10 of the electric power company 1 inputs, for example, a DR request ID for identifying the DR to be confirmed and a parent agri ID of the parent agri 2 or a child agri ID of the child agri 3 to form a distributed ledger system. By executing the smart contract, the distributed ledger system is requested to confirm the achievement rate of DR. The node device of the distributed ledger system given this request executes the smart contract and confirms the achievement rate of DR. At this time, the node device identifies the consumer 4 who has performed the DR by referring to the DR consumer DB based on the designated DR request ID. Next, the node device extracts the power measurement information of the specified consumer 4 during the period in which the DR is performed from the power measurement information DB. For each consumer 4, the node device calculates the DR actual value from the difference between the baseline stored in the DR consumer DB and the actual demand value of the power consumption included in the power measurement information, and stores it in the DR consumer DB. Remember. The node device aggregates the DR actual values for the consumer 4 under the control of the target parent agri 2 or child agri 3, and calculates the DR achievement rate based on the aggregated values of the DR actual values and the target value of DR. Then, the calculated achievement rate is given to the device that requested the execution of the smart contract, that is, the electric power company server device 10. The node device stores the calculated achievement rate in the DR consumer DB. The DR target value may be stored in the distributed ledger system in association with the DR request ID, or may be stored in the electric power company server device 10.

In this embodiment, the process of calculating the achievement rate is performed by the smart contract of the distributed ledger system, but the present invention is not limited to this. For example, even if the electric power company server device 10 acquires the information stored in the distributed ledger system by executing a predetermined program, and the electric power company server device 10 performs processing such as calculation of the achievement rate based on the acquired information. good.

The electric power company server device 10 acquires the calculation result of the achievement rate by the smart contract of the distributed ledger system, and performs a process of displaying the achievement rate to, for example, the operator of the electric power company 1. At this time, the electric power company server device 10 may display the achievement rate on, for example, a display device connected to its own device, or may transmit information on the achievement rate to a terminal device used by, for example, an operator, etc., and the terminal device may display the achievement rate. The achievement rate may be shown on the display. The achievement rate is an example of a format for notifying the operator, etc., and provides the operator, etc. with information other than the power measurement information, the baseline, the actual demand value, the actual DR value, or the achievement rate calculated from these. You may notify.

FIG. 11 is a flowchart showing a procedure of power measurement information storage processing performed by the power company server device 10 according to the present embodiment. Whether or not the information acquisition unit 11c of the processing unit 11 of the electric power company server device 10 according to the present embodiment has received the power measurement information transmitted by the smart meter 40 of the consumer 4 at a cycle of, for example, once every 30 minutes. Is determined (step S1). When the power measurement information is not received (S1: N0), the information acquisition unit 11c waits until the power measurement information is received.

When the power measurement information is received (S1: YES), the information acquisition unit 11c receives the power measurement information received from the smart meter 40 and receives the power measurement information as the customer ID of the consumer 4 and the child agri that manages the consumer 4. It is stored in the power measurement information DB of the distributed ledger system in association with the information such as the child agri ID of 3 and the parent agri ID of the parent agri 2 that manages the child agri 3, and the process is terminated.

FIG. 12 is a flowchart showing a procedure of DR execution processing performed by the electric power company server device 10 according to the present embodiment. The DR request unit 11a of the processing unit 11 of the electric power company server device 10 according to the present embodiment acquires information such as a date and time and a target value for the DR determined by the electric power company 1 (step S11). The DR request unit 11a transmits a DR request including the DR request ID for identifying the DR and information such as the date and time and the target value acquired in step S11 to the parent agri server device 20 of the parent agri 2 (step S12). ..

The implementation command unit 11b of the processing unit 11 determines whether or not the timing for executing the determined DR has been reached (step S13). If the timing to execute the DR has not been reached (S13: NO), the implementation command unit 11b waits until the timing to execute the DR is reached. When the timing to execute the DR is reached (S13: YES), the implementation command unit 11b transmits a DR implementation command including the DR request ID for identifying the DR to be executed to the parent agri-server device 20 (step S14).

After that, the achievement rate confirmation unit 11d of the processing unit 11 determines whether or not it is time to confirm the achievement rate regarding DR, for example, once a month (step S15). If the confirmation timing has not been reached (S15: NO), the achievement rate confirmation unit 11d waits until the confirmation timing is reached. When the timing for confirmation is reached (S15: YES), the achievement rate confirmation unit 11d has a DR request ID for identifying the DR to be confirmed, and a parent agri ID or a child agri 3 of the target parent agri 2. By executing the smart contract of the distributed ledger system with the child agri ID as an input, the distributed ledger system is requested to confirm the achievement rate of the parent agri 2 or the child agri 3 (step S16). The achievement rate confirmation unit 11d acquires the achievement rate calculated by the smart contract in the distributed ledger system in response to this request (step S17), and ends the process. The electric power company server device 10 may perform a process of displaying the acquired achievement rate to, for example, an operator of the electric power company 1.

FIG. 13 is a flowchart showing a procedure of processing performed by the child agri-server device 30 according to the present embodiment. The processing performed by the parent agri-server device 20 will be omitted from the illustration and description in the flowchart. The consumer determination unit 31a of the processing unit 31 of the child agri-server device 30 according to the present embodiment determines whether or not the DR request transmitted by the electric power company server device 10 has been received via the parent agri-server device 20. (Step S21). When the DR request has not been received (S21: NO), the consumer determination unit 31a waits until the DR request is received.

When the DR request is received (S21: YES), the consumer determination unit 31a determines one or a plurality of consumers 4 to perform the DR from the plurality of consumers 4 managed by the child agri 3. (Step). S22). The consumer determination unit 31a includes the DR request ID included in the DR request, the determined consumer ID of the consumer 4, the child agri ID of the child agri 3 that manages the consumer 4, and the parent that manages the child agri 3. By executing the smart contract of the distributed ledger system by inputting information such as the parent Agri ID of Agri 2, the DR request ID, the consumer ID, etc. are registered (stored) in the DR consumer DB of the distributed ledger system. (Step S23). Next, the consumer determination unit 31a calculates a baseline for the consumer 4 registered in the DR consumer DB by executing the smart contract of the distributed ledger system, and registers the calculated baseline in the DR consumer DB ( Step S24).

The information relay unit 31c of the processing unit 31 determines whether or not the DR execution command transmitted by the electric power company server device 10 has been received via the parent agri-server device 20 (step S25). When the implementation command has not been received (S25: NO), the information relay unit 31c waits until the implementation command is received. When the implementation command is received (S25: YES), the information relay unit 31c has previously determined to acquire the DR request ID included in the received implementation command and execute the DR identified by this DR request ID. A DR implementation command is transmitted to the GW50 of one or more consumers 4 (step S26). After that, the information relay unit 31c transmits a transmission request of the power measurement information from the power company server device 10 to the consumer 4, and the power measurement information from the smart meter 40 of the customer 4 in response to the transmission request is transmitted to the power company. By transmitting to the server device 10, the power measurement information is relayed (step S27), and the process is terminated.

In the present embodiment, the child agri-server device 30 executes the smart contract of the distributed ledger system to register information about the consumer 4 and perform processing such as calculating a baseline, but the present invention is limited to this. Instead, these processes may be performed by a program executed by the child agri-server device 30. For example, the child agri-server device 30 may perform a process of calculating a baseline and register the calculation result in the distributed ledger system.

FIG. 14 is a flowchart showing a procedure of processing performed by the GW 50 of the consumer 4 according to the present embodiment. Whether or not the information relay unit 51a of the processing unit 51 of the GW50 of the consumer 4 according to the present embodiment has received the DR implementation command transmitted by the electric power company server device 10 via the child agri-server device 30. Determination (step S41). When the information relay unit 51a has not received the implementation command (S41: NO), the information relay unit 51a waits until the implementation command is received. When the implementation command is received (S41: YES), the information relay unit 51a notifies the consumer 4 of the implementation of the DR. The notification of DR implementation may be performed by any method, for example, by transmitting a message to the terminal device owned by the consumer 4. After that, the information relay unit 51a transmits a transmission request of the power measurement information from the power company server device 10 to the smart meter 40, and the power measurement information from the smart meter 40 in response to the transmission request is transmitted to the power company server device 10. By transmitting, the power measurement information is relayed (step S43), and the process is terminated.

FIG. 15 is a flowchart showing the procedure of the baseline calculation process performed by the node device of the distributed ledger system according to the present embodiment, and is the procedure of the process performed by the smart contract of the distributed ledger system. The node device of the distributed ledger system acquires the consumer ID of the consumer 4 to be calculated from the information given from the child agri-server device 30 with the execution of the smart contract (step S51). The node device acquires the past power measurement information (for example, the power measurement information for the past week) by the consumer 4 by referring to the power measurement information DB of the distributed ledger system based on the acquired consumer ID. (Step S52).

Next, the node device calculates the baseline of the consumer 4 by, for example, calculating the average value of the measured power values based on the acquired past power measurement information (step S53). The node device stores the calculated baseline value in the DR consumer DB of the distributed ledger system (step S54). After that, the node device determines whether or not the calculation process has been completed for all the consumers 4 to be calculated for the baseline (step S55). When the consumer 4 who has not completed the calculation process remains (S55: NO), the node device returns the process to step S51 and calculates the baseline for another consumer 4. When the calculation process is completed for all the consumers 4 (S55: YES), the node device ends the process.

FIG. 16 is a flowchart showing the procedure of the achievement rate calculation process performed by the node device of the distributed ledger system according to the present embodiment, and is the procedure of the process performed by the smart contract of the distributed ledger system. The node device of the distributed ledger system acquires a DR request ID that identifies the DR to be verified from the information given from the power company server device 10 with the execution of the smart contract (step S61). The node device identifies one or more consumers 4 who have performed DR by referring to the DR consumer DB of the distributed ledger system based on the acquired DR request ID (step S62).

Next, the node device refers to the power measurement information DB of the distributed ledger system based on the specified consumer ID of the consumer 4, and obtains the power measurement information at the date and time when the DR of the consumer 4 who performed the DR is performed. Acquire (step S63). The node device stores the electric power measured by the smart meter 40 included in the acquired power measurement information as a demand actual value in the DR consumer DB of the distributed ledger system (step S64). The node device calculates the DR actual value by calculating the difference between the baseline and the actual demand value stored in the DR consumer DB (step S65), and stores the calculated DR actual value in the DR consumer DB (step S65). Step S66). The node device aggregates the DR actual values of the managed consumer 4 for the target parent agri 2 or child agri 3 (step S67). The node device calculates the aggregated value of the actual DR value with respect to the target value of DR as the achievement rate (step S68). The node device stores the calculated achievement value in the DR consumer DB (step S69), and ends the process.

<Achievement rate display processing>
The electric power company server device 10 that has calculated the achievement rate performs a process of displaying the calculation result of the achievement rate on, for example, a display device or the like. 17 and 18 are schematic views showing a display example of the achievement rate calculation result by the electric power company server device 10. The electric power company server device 10 according to the present embodiment calculates the DR achievement rate for the parent agri 2 and the child agri 3 at a cycle of once a month, for example, and displays the achievement rate report screen shown in FIG. 17 as a display device. Etc. to notify the operator of the electric power company 1. On the achievement rate report screen shown in FIG. 17, the electric power company server device 10 displays, for example, the title character string of "achievement rate (parent agri-level)" at the top, and the achievement rate regarding the parent agri is below the title character string. Is displayed in tabular format. The table of the achievement rate report screen shown in FIG. 17 shows "DR request ID", "parent agri (name, etc.)", "target value", "DR actual value", "achievement rate", "child agri details", etc. It is the one that associates the information of. In the illustrated example, it is assumed that there are three parent agris 2 of "parent agri A" to "parent agri C", and the "DR request ID" is attached with the identification information of "0001" to "0003" for three times. "Target value", "DR actual value" and "achievement rate" are displayed for the DR of. In addition, a button with a "details" label associated with each achievement rate is displayed in the "child agri details" provided at the right end of the table. For example, the operator of the electric power company 1 may use a mouse or the like. When the click operation for this button is performed using the input device, the electric power company server device 10 displays detailed information about the corresponding child agri 3.

FIG. 18 is an example of a detail screen displayed by the electric power company server device 10 when the detail button of the child agri detail regarding the parent agri A with DR request ID = 0001 is operated on the achievement rate report screen shown in FIG. .. On the detailed screen shown in FIG. 18, the electric power company server device 10 displays, for example, a title character string of "achievement rate (child agri level)" at the top, and is under the control of the parent agri A below this title character string. Detailed information on the achievement rate for the child agri 3 is displayed in a table format. The table on the detailed screen shown in FIG. 18 associates information of "DR request ID", "parent agri", "child agri", "target value", "DR actual value", and "achievement rate". .. The "DR request ID" and "parent agri" are the same as those in the table displayed on the achievement rate report screen of FIG. The "child agri" is an ID or name of one or more child agri 3 managed by the parent agri 2 to be displayed in detail. In this example, the "parent agri A" is the "child agri A" and the "child agri A". It manages two of "Agri B". The "target value", "DR actual value", and "achievement rate" are values calculated for each child agri 3.

The screens shown in FIGS. 17 and 18 are merely examples, and the present invention is not limited to this. The electric power company server device 10 may display the achievement rate calculation result by any method. The electric power company server device 10 may further display detailed information for each consumer 4 managed by the child agri 3. For example.

<Summary>
The electric power measurement information management system according to the present embodiment having the above configuration is based on the electric power measured by the smart meter 40 installed in the consumer 4 via the first communication path connecting the electric power company 1 and the consumer 4. The electric power company server device 10 acquires the electric power measurement information once every 30 minutes, for example, and stores it in the electric power measurement information DB of the distributed ledger system. Further, the child agri-server device 30 of the child agri 3 intervening between the electric power company 1 and the consumer 4 in the second communication path stores information about the consumer performing DR in the DR consumer DB of the distributed ledger system, and at the same time, The DR baseline (reference value) is calculated for the customer 4 who has performed the DR and stored in the DR consumer DB. The power measurement information management system calculates the actual DR value (power saving amount) of the consumer 4 based on the power measurement information stored in the distributed ledger system and the baselines of the consumer 4 and the consumer 4 who perform the DR. It is stored in the DR consumer DB of the distributed ledger system, and the achievement rate of DR for the parent agri 2 or the child agri 3 is calculated based on the actual DR value. As a result, the power measurement information management system according to the present embodiment can calculate the DR achievement rate for the parent agri 2 or the child agri 3 based on the information stored in the highly reliable distributed ledger system. It can be expected to improve the reliability of the information handled in the supply and demand adjustment.

Further, in the power measurement information management system according to the present embodiment, a plurality of aggregators, that is, a parent agri 2 and a child agri 3 are interposed between the electric power company 1 and the consumer 4, and the DR of the parent agri 2 is achieved. Along with calculating the rate, the achievement rate of DR for the child agri 3 is calculated.

Further, in the power measurement information management system according to the present embodiment, the power company server device 10 transmits a DR implementation command via the second communication path, and the child agri server device 30 of the child agri 3 that receives the implementation command receives the implementation command. An implementation command is transmitted to the consumer 4 who performs the predetermined DR. In the DR consumer DB of the distributed ledger system, the DR request ID attached to this implementation command and the consumer ID attached to the consumer 4 are stored in association with each other. As a result, it is possible to improve the reliability of the information as to which is the consumer 4 who has performed the DR.

Further, in the power measurement information management system according to the present embodiment, before the electric power company server device 10 transmits the DR implementation command, the DR request for DR is transmitted to the second communication path, and the DR request is received. The child agri-server device 30 stores the information of the consumer 4 performing the DR in the distributed ledger system. As a result, the information regarding the consumer 4 who implements the DR determined by the child agri 3 prior to the implementation of the DR can be stored in the highly reliable distributed ledger system.

Further, in the power measurement information management system according to the present embodiment, the baseline is calculated for the consumer 4 who performs DR, the actual DR value is calculated for the consumer 4 who performs DR, and the parent agri 2 and the child agri 2 are calculated. Processing such as calculation of the achievement rate of DR for No. 3 is performed by the distributed ledger system executing a smart contract. This makes it possible to improve the reliability of the process of calculating the achievement rate and the like.

Further, in the power measurement information management system according to the present embodiment, the electric power company server device 10 performs a process of displaying the achievement rate of DR for the parent agri 2 and the child agri 3 based on the calculation result performed by the distributed ledger system. .. Thereby, for example, the operator or the like of the electric power company 1 can grasp the actual result of DR or the like based on the information displayed by the electric power company server device 10.

Further, in the power measurement information management system according to the present embodiment, the distributed ledger system manages information such as the command ID and the consumer ID of the DR consumer DB as public information. Further, the distributed ledger system manages information such as "baseline", "demand actual value" and "DR actual value" of the DR consumer DB and each information of the power measurement information DB as non-public information. Regarding this non-public information, only the non-public information about the consumer 4 under its control is stored in the node device such as the parent agri 2 and the child agri 3, and the non-public information about the consumer 4 outside its own control is stored. No information is stored. As a result, the confidentiality of information such as the actual DR value of the consumer 4 can be enhanced.

The system configuration of the power measurement information management system described in this embodiment, the device configuration of each device included in this system, the processing performed by each device, the information handled by each device, the information transmitted / received between the devices, and the like are described. This is just an example and is not limited to this, and the configuration may be changed as appropriate. Further, the configuration of the distributed ledger system used by the power measurement information management system is not limited to this as an example, and the configuration may be changed as appropriate. The distributed ledger system according to the present embodiment assumes a private distributed ledger system such as "Hyperledger Fabric" or "Enterprise Ethereum", but may be a public distributed ledger system. Further, in the present embodiment, the program operating on the distributed ledger system is described as "smart contract", but this program may be called by another name such as "chain code".

The embodiments disclosed this time should be considered to be exemplary in all respects and not restrictive. The scope of the present invention is indicated by the scope of claims, not the above-mentioned meaning, and is intended to include all modifications within the meaning and scope equivalent to the scope of claims.

1 Electric power company 2 Parent agri 3 Child agri 4 Consumer 10 Electric power company Server equipment 11 Processing unit 11a DR request unit 11b Implementation command unit 11c Information acquisition unit 11d Achievement rate confirmation unit 11e Ledger processing unit 12 Storage unit 12a Server program 13 Communication unit 20 Parent agri-server device 21 Processing unit 21a DR request unit 21b Execution command unit 21c Information relay unit 21d Ledger processing unit 22 Storage unit 22a Server program 23 Communication unit 30 Child agri-server equipment 31 Processing unit 31a Consumer decision unit 31b Implementation command unit 31c Information relay unit 31d Ledger processing unit 32 Storage unit 32a Server program 33 Communication unit 40 Smart meter 41 Measurement unit 42 Processing unit 43 Storage unit 44 First communication unit 45 Second communication unit 50 GW
51 Processing unit 51a Information relay unit 52 Storage unit 52a Program 53 First communication unit 54 Second communication unit 97-99 Recording medium 100 Ledger information 101 Blockchain 102 State DB

Claims (15)

Information processing equipment
Through the first communication path connecting the electric power company and the consumer, the electric power measurement information related to the electric power measured by the electric power measuring instrument installed in the consumer is acquired.
The acquired power measurement information is stored in the distributed ledger system, and
The supply and demand adjustment is based on the information about the consumer subject to the supply and demand adjustment stored in the distributed ledger system by the intermediary between the electric power company and the consumer and the power measurement information stored in the distributed ledger system. Calculate the numerical value related to
Power measurement information management method. The above figures are reference values for supply and demand adjustment, and are
The calculated reference value is stored in the distributed ledger system.
The power measurement information management method according to claim 1. The above figures are actual values or achievement rates of supply and demand adjustment, and are
The calculated actual value or achievement rate is stored in the distributed ledger system.
The power measurement information management method according to claim 1 or 2. Between the electric power company and the plurality of consumers, a child intermediary who manages one or more of the consumers and a parent intermediary who manages one or more child intermediaries intervene.
Calculate the numerical value for the parent intermediary,
The power measurement information management method according to claim 3. Calculate the numerical value for the child intermediary,
The power measurement information management method according to claim 4. A command to implement supply and demand adjustment is transmitted via a second communication path in which an intermediary intervenes between the electric power company and the consumer.
The information about the consumer stored in the distributed ledger system includes the supply and demand adjustment identification information attached to the command and the consumer identification information for identifying the consumer.
The power measurement information management method according to any one of claims 1 to 5. Before transmitting the command, a supply and demand adjustment request requesting supply and demand adjustment is transmitted to the second communication path.
The information about the consumer is stored in the distributed ledger system by the information processing apparatus of the intermediary who received the supply and demand adjustment request.
The power measurement information management method according to claim 6. The distributed ledger system performs calculations based on the information about the consumer and the power measurement information.
The power measurement information management method according to any one of claims 1 to 7. Perform the process of displaying the calculated numerical value.
The power measurement information management method according to any one of claims 1 to 8. The distributed ledger system stores the power measurement information and the numerical value as non-public information.
The power measurement information management method according to any one of claims 1 to 9. Information of the electric power company that acquires the electric power measurement information related to the electric power measured by the electric power measuring instrument installed in the consumer and stores it in the distributed ledger system via the first communication path connecting the electric power company and the consumer. With the processing equipment
An information processing device of an intermediary that manages the consumer by intervening between the electric power company and the consumer in the second communication path and stores information about the consumer who adjusts the supply and demand in the distributed ledger system. Prepare,
Based on the information about the consumer and the power measurement information stored in the distributed ledger system, the numerical value related to the supply and demand adjustment is calculated.
Power measurement information management system. An electric power measurement information acquisition unit that acquires electric power measurement information related to electric power measured by an electric power measuring instrument provided in the customer via a first communication path connecting an electric power company and a consumer.
A storage processing unit that performs a process of storing the power measurement information acquired by the power measurement information acquisition unit in the distributed ledger system, and a storage processing unit.
A supply and demand adjustment command transmission unit that transmits a command for performing supply and demand adjustment via a second communication path in which an intermediary is interposed between the electric power company and the consumer.
Before transmitting the command, the supply and demand adjustment request transmission unit that transmits the supply and demand adjustment request requesting the supply and demand adjustment to the second communication path, and the supply and demand adjustment request transmission unit.
An information processing device of an electric power company, comprising a calculation processing unit that performs a process of calculating a numerical value related to a supply / demand adjustment based on the power measurement information stored in the distributed ledger system and information about the consumer. An information processing device that constitutes a distributed ledger system.
A distributed ledger that stores power measurement information related to electric power measured by a power measuring instrument installed in a customer and information about a customer who adjusts supply and demand.
An information processing device including a processing unit that performs a process of calculating a numerical value related to supply and demand adjustment based on the power measurement information stored in the distributed ledger and information about the consumer. On the computer
Through the first communication path connecting the electric power company and the consumer, the electric power measurement information related to the electric power measured by the electric power measuring instrument provided in the consumer is acquired, and the acquired electric power measurement information is stored in the distributed ledger system. Do the processing,
A command to implement supply and demand adjustment is transmitted via a second communication path in which an intermediary intervenes between the electric power company and the consumer.
Before transmitting the command, a supply and demand adjustment request requesting supply and demand adjustment is transmitted to the second communication path.
A computer program that executes a process of calculating a numerical value related to supply and demand adjustment based on the power measurement information stored in the distributed ledger system and information about the consumer. For the computers that make up the distributed ledger system
The power measurement information related to the power measured by the power measuring instrument installed in the customer and the information about the customer who adjusts the supply and demand are stored in the distributed ledger.
A computer program that executes a process of calculating a numerical value related to supply and demand adjustment based on the power measurement information stored in the distributed ledger and information about the consumer.

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