JP2023056184A - Generation system, generation method and generation program for environmental value digital art - Google Patents

Abstract

To give a motivation to contribute to an environment by making it possible to possess a degree of contribution to an environment as unique and scarce property and then providing an additional value higher in palatability.SOLUTION: A generation system for environmental value digital art comprises: a smart meter 41 which measures electric energy generated or consumed in units of electric power consumption and generates actual result data including measurement results and information associated with a power generation manner for the measured electric power; a value evaluation part 26a which generates environmental value information on an evaluation of a degree of contribution to an environment associated with the units of consumption on the basis of the actual result data; a digital art generation part 27 which generates an environmental value digital art based upon a cipher key according to a predetermined algorithm including the cipher key as one of parameters; and a data storage processing part 27b which uses the cipher key unique to the environmental value information to cipher and stores at least a part of the environmental value information.SELECTED DRAWING: Figure 4

Description

The present invention is an environmental value digital art that provides an added value with a higher preference for contribution to the environment in an exchange system that trades power between a power supply side that generates power and a consumer side that consumes power. generation system, generation method and generation program.

Conventionally, energy sources such as sunlight, solar heat, water power, wind power, biomass, and geothermal power can be regenerated in a relatively short period of time even after being used once. Promotion is desired. In recent years, power trading has become possible, enabling power plants and consumers to match power, including renewable energy such as solar power and wind power, according to the type of power generation desired by the consumer. A system has been proposed (see Patent Document 1, for example). In the system of Patent Document 1, by matching the corresponding combination with the suppliable conditions at a plurality of power plants during a predetermined time period when power is required by the consumer, the type of power generation desired by the consumer power can be tied.

By the way, even for the same electric power, the power generation cost and the burden on the environment differ depending on the type of power generation and the environment. Since the value of power is diversified and mixed, in the system disclosed in Patent Document 1, the power itself is given information on the origin of the power generation via a power token or the like, and the value of the power is properly valued. Mechanisms have also been proposed for performing evaluations and billing and trading.

Japanese Patent Application Laid-Open No. 2020-107200

By the way, in the power trading system disclosed in the above-mentioned Patent Document 1, it is possible to evaluate the degree of contribution of the supplied power to the environment, the so-called environmental value, in the form of the power token. , for example, converted into the amount of _CO2 emissions, etc., and is only shown as a numerical value.

However, there is a problem that it is difficult _for general users to imagine the value of environmental contribution simply by numerical values. However, simply presenting the amount is too dry, and there is a risk that the motivation to contribute to the environment will decline.

Therefore, in view of the problems of the conventional technology, an object of the present invention is to improve the contribution to the environment in an exchange system that executes power trading between a power supply side that generates power and a power consumer side that consumes power. , A system for generating environmental value digital art that can be possessed as a unique and rare property, not just a numerical value, and can provide added value that is highly palatable and can arouse motivation to contribute to the environment. It is to provide a method and a generating program.

In order to solve the above problems, the environmental value art generation system according to the present invention includes:
a performance data generation unit that measures the amount of power generated or consumed for each power consumption unit and generates performance data including the measurement results and information on the measured power generation method;
an environmental value information generation unit that generates environmental value information, which is an evaluation of the degree of contribution to the environment of a consumption unit, based on performance data;
Storage means for encrypting and storing at least part of the environmental value information using a cryptographic key unique to the environmental value information; a digital art generation unit that generates value digital art;
and data storage means for encrypting and storing at least part of the information on the environmental value digital art or its ownership.

Further, the method for generating environmental value art according to the present invention includes:
(1) A performance data generation unit measures the amount of power generated or consumed for each power consumption unit, and generates performance data including the measurement result and information on the measured power generation method. a step;
(2) an environmental value information generating step in which the environmental value information generation unit generates environmental value information, which is an evaluation of the degree of contribution to the environment of the consumption unit, based on the performance data;
(3) a storage step of encrypting at least a portion of the environmental value information using an encryption key unique to the environmental value information and storing it in a storage means; a digital art generating step of generating an environmental value digital art based on said cryptographic key according to a predetermined algorithm as part of;
(5) A data storage step of encrypting at least a part of the environmental value digital art or the information on ownership thereof and storing the data in a data storage means.

In the above invention,
The data storage means further comprises a linking unit that encrypts and stores at least a part of the environmental value information and the environmental value digital art or the information about the ownership thereof in cooperation with the guarantee system,
The assurance system comprises a plurality of nodes that encrypt and store at least a portion of the environmental value information, environmental value art, and information relating to ownership thereof;
The node aggregates at least a part of the environmental value information at a predetermined timing into a block, connects this block to an existing block to form a block chain, and shares the block chain with a plurality of the nodes. stored as a distributed ledger,
Preferably, said cryptographic key is a hash value obtained from said existing block.

Further, in the above invention,
The digital art generation unit
a teacher data acquisition unit that acquires teacher data that serves as a motif for digital art;
By extracting and learning the distribution of the feature amount related to the training data, and comparing the distribution of the learned feature amount with the distribution of the feature amount from the target data, it is determined whether the target data is the training data or not. a discriminative neural network that identifies what is data;
a generative neural network that generates nascent data, which is new digital art, using the encryption key as a basis vector;
causing the discrimination neural network to discriminate the nascent data, back propagating information about the nascent data misidentified as teacher data to the discrimination neural network and the generation neural network according to the discrimination result, and making the discrimination neural network and an adversarial learning unit that updates the distribution of learned feature quantities and updates the basis vectors in the generating neural network.

Furthermore, the above invention preferably further includes a data collecting unit that searches a communication network based on the environmental value information and collects digital art related to the environmental value information as teacher data.

Further, the above invention further includes a teacher data selection unit that selects the teacher data to be used for learning according to a user operation, and the generation neural network selects the teacher data based on the teacher data selected by the teacher data selection unit. It is preferable to perform the learning.

The system and method according to the present invention described above can be realized by executing the program of the present invention written in a predetermined language on a computer. That is, the program of the present invention is installed in an IC chip or memory device of a mobile terminal device, a smart phone, a wearable terminal, a mobile PC or other information processing terminal, a general-purpose computer such as a personal computer or a server computer, and executed on a CPU. , a system having the functions described above can be constructed and the method according to the present invention can be implemented.

In addition, the program of the present invention can be distributed, for example, through a communication line, and can be transferred as a package application that runs on a stand-alone computer by recording it on a computer-readable recording medium. can. Specifically, this recording medium can be a magnetic recording medium such as a flexible disk or a cassette tape, an optical disk such as a CD-ROM or a DVD-ROM, or various recording media such as a RAM card. Then, according to the computer-readable recording medium recording this program, it is possible to easily implement the above-described system and method using a general-purpose computer or a dedicated computer, and save, transport, and Easy to install.

According to the present invention, an exchange that trades electric power between a power supply side and a power consumer side evaluates the degree of contribution to the environment as environmental value information, and uses the environmental value information as environmental value information. An environmental value digital art is generated based on an encryption key unique to the environmental value information, which is used when the environmental value information is encrypted and stored. This generated environmental value digital art is not just a numerical value, but a one-of-a-kind art that can be possessed as a scarce property, and is more attractive to environmental value in electricity trading. High added value can be provided, and as a result, motivation for contributing to the environment can be aroused.

Also, for example, when using a so-called NFT (Non-Fungible Token) mechanism as a means of storing information on the ownership of environmental value digital art, the NFT is an appraisal or ownership certificate related to assets such as environmental value digital art. By acting as an environmental value digital art, falsification can be verified after generation.

It is a conceptual diagram which shows the trading form in the electric power trading system which concerns on embodiment. BRIEF DESCRIPTION OF THE DRAWINGS It is a conceptual diagram which shows the whole electric power trading system structure which concerns on embodiment. 4 is a block diagram showing the internal configuration of the power control terminal according to the embodiment; FIG. 4 is a block diagram showing the internal configuration of an intermediary server according to the embodiment; FIG. It is a block diagram which shows the internal structure of the algorithm execution part which concerns on embodiment. 1 is a block diagram showing the internal configuration of a guarantee system according to an embodiment; FIG. FIG. 4 is an explanatory diagram showing an overview of digital art generation processing according to the embodiment; FIG. 4 is a flow chart showing the procedure at the time of token issuance in the power trading system according to the embodiment; FIG. 4 is a flow chart showing the procedure at the time of selling power and consuming power in the power trading system according to the embodiment; FIG. 4 is a flow chart showing the procedure at the time of token transfer in the power trading system according to the embodiment; FIG. 3 is an explanatory diagram illustrating the relationship between public keys and private keys in the power trading system according to the embodiment; It is an explanatory view about a block chain of a power trading system concerning an embodiment. It is an explanatory view about a block chain of a power trading system concerning an embodiment. It is an explanatory view about a block chain of a power trading system concerning an embodiment. It is an explanatory view about a block chain of a power trading system concerning an embodiment. FIG. 4 is an explanatory diagram showing the configuration of each token and data in the power trading system according to the embodiment;

Embodiments of a method, system, and program for generating environmental value digital art according to the present invention will be described in detail below with reference to the accompanying drawings. In this embodiment, a case where the method for generating environmental value digital art according to the present invention and the like is used in an electric power trading service provided by an electric power trading system will be exemplified. The embodiments shown below are examples of devices and the like for embodying the technical idea of this invention. It does not specify the layout, etc., to the following. The technical idea of this invention can be modified in various ways within the scope of claims.

Here, digital art includes images such as paintings and illustrations, moving images such as animation and computer graphics, and digital music, text data such as novels and poems, and all creations that can be digitized. included.

(Overall configuration of power trading system)
In this embodiment, the system for generating environmental value digital art according to the present invention is incorporated into the power trading service provided by the power trading system, and the environmental value evaluated in power trading is embodied in the form of environmental value digital art. and manage its ownership. FIG. 1 is a conceptual diagram showing a trading form in the power trading service according to this embodiment, and FIG. 2 is a conceptual diagram showing the overall configuration of the power trading system according to this embodiment.

In this embodiment, through the power trading system 1 built on the communication network 3, a service is provided that performs brokerage work for power trading transactions using tokens. Specifically, as shown in Fig. 1, in this service, each facility (power plant, consumer, aggregator, etc.) accesses the token trading platform through the power control terminal provided for each facility and conducts power trading. In this power trading transaction, along with the power trading token, which is the value information of power, an environmental value token, which is value information related to DR (Demand Response) control and environmental value, is issued, and these tokens are used. A sale transaction of electric power and its added value is established by exchanging between a seller and a buyer.

These tokens are first issued as power trading tokens according to the amount of power generated and the power generation method, and the power that can be sold is accumulated in the power trading token pool of the token trading platform as power trading tokens equivalent to that power. and traded through these token pools. Ultimately, this power trading token is purchased by consumers, etc. as the right to use (consume) power, and the purchased consumers, etc. can use power equivalent to the power trading token, By consuming , a power trading token equivalent to the consumed power is destroyed. The price of this power trading token fluctuates according to the supply and demand balance of sales transactions on the token trading platform. As shown in FIG. 16, when power is generated, the power trading token is associated with source information such as the amount of power, the power generation method, the place of power generation, and the time of power generation. Related token information such as derived environmental value tokens, transaction history including transfer history due to trading, etc. are also associated and held. Each accumulated token can be traded as an independent virtual currency.

The environmental value token is a token that is calculated and issued according to the degree of contribution to the environment, such as the amount of electric power consumed in-house or the amount of _CO2 reduction. This environment value token can be transferred, and as shown in FIG. A transfer history that records the actual value (consideration amount) and other transaction history is issued. In the transfer history of the environmental value token, the value of the environmental value token and the issuer are recorded. Then, the transfer history of the erased environmental value tokens is recorded in a blockchain, which is a guarantee system, through the token trading platform so that it cannot be falsified.

In addition, as one of the evaluation methods for this environmental value token, based on the type of power generation or storage related to the method of power generation and the type of power generation or storage related to the consumed power, the power generated by the type of power generation that has a high degree of contribution to the environment is evaluated. , and increase the value when storing electricity in a storage type that contributes highly to the environment. For example, electric power generated by renewable energy such as solar power generation is stored in batteries for electric vehicles such as EV trucks. Since there is a synergistic effect with the contribution, processing such as granting environmental value tokens or increasing the value can be performed as an evaluation. Contributions to these environments (CO ₂ reduction amount and self-consumption amount) are stored in the token as origin information and other related information, and are stored in the token management database 21a of the mediation server 2 and each node of the blockchain interface. retained.

Furthermore, the environmental value token is determined by analyzing the performance data, for example, by calculating the performance value of power control over a certain period of time, and determining the amount of consideration. In addition, we calculated the actual value of avoiding peak power consumption (peak cut) for a certain period of time, and when the peak power was below the maximum power set at the beginning of the month when the peak cut was avoided, we paid too much electricity. Therefore, the amount of consideration for environmental value tokens may be determined by using the overpaid electricity bill as an economic effect. Information about this is held in the token, as well as in the token management database 21a of the intermediary server 2, and in each node of the blockchain interface.

In the example shown in FIG. 1, power plants, power prosumers, consumers with power generation facilities, or aggregators that organize these consumers provide power and acquire power trading tokens according to the amount of power generated. At this time, an environmental value token is also acquired according to the degree of contribution to the environment by the power generation method and the power generation period (season and time zone), and the economic effect of the DR control. The acquired tokens can be converted into cash by settlement, and can be sold to others by pooling them in each token pool to receive the consideration. An aggregator is a business operator that bundles and aggregates the power demand of consumers and provides effective energy management services. DR control is implemented.

On the other hand, electric power supplied from power plants, electric power prosumers, and consumers equipped with power generation facilities is supplied to consumers who are demand destinations. This power trade is recorded as a power trade token.
On the other hand, each token accumulated in each token pool will be distributed to aggregators, PPS, consumers, companies, etc. through the blockchain interface service as an independent virtual currency.
It can be traded to and from other trading markets. In this case as well, various tokens can be settled, and value can be transferred to others to receive the consideration.

FIG. 2 is a diagram showing a network configuration of power trading system 1 according to the present embodiment. As shown in the figure, the power trading system 1 includes an intermediary server 2 that provides a token trading platform, power control terminals 40 provided at each facility (power plant, PPS, consumer, power prosumer, etc.) and a communication network 3. are interconnected with each other. Also provided on the communication network 3 is a guarantee system 6 that provides a blockchain interface service that guarantees power transactions.

The power control terminal 40 is composed of, for example, an information processing terminal equipped with a CPU, and is a device that comprehensively controls facilities of power plants, consumers, PPSs, power prosumers, aggregators, and the like. Equipment to be controlled by the power control terminal 40 includes a smart meter 41, a storage battery 42, a PV (Photovoltaics) 43, etc. included in the user system 4 deployed in facilities such as consumers and power prosumers. It includes devices that manage power generation, storage, and power consumption. Various devices to be controlled by the power control terminal 40 can be omitted as necessary. For example, the power consumption of the consumer is measured by the smart meter 41. Some consumers have power generation equipment and power storage equipment, some have power generation equipment or power storage equipment, or some have power generation equipment or power storage equipment. - There is also a smart meter 41 that does not have any power storage equipment and only consumes power. Electric power prosumers are also in the position of consuming electricity, but they can also be on the side of supplying electricity, equipped with photovoltaic power generation and storage batteries.

The intermediary server 2 is a content server device that mediates power trading between the power selling side and the power buying side through the power control terminal 40 . This intermediary server 2 provides an intermediary website online as a token trading platform, and various token transaction intermediary services for the power selling side, the power buying side, and other markets and companies through the intermediary website. offers.

By accessing the mediation server 2 from the power control terminal 40, various token transaction services can be used according to the power generation, power storage, and power consumption of each facility or equipment. This token transaction service manages the issuance and sale of tokens by the seller Ua, and the purchase and cancellation of tokens by the buyer Ub, who consumes power. More specifically, the power control terminal 40 cooperates with the mediation server 2 to generate power generation data, power storage data, and consumption data based on power generation, power storage, and power consumption in each facility, and various Issue, sell, and cancel tokens. Each piece of information described in these various tokens and the history of issuance, trading, and cancellation of the tokens are stored in a distributed ledger system in an unalterable state through the blockchain interface service provided by the guarantee system 6.

In addition, tokens that can be traded on the token trading platform can be exchanged equivalently with each other according to the price determined by the supply and demand balance of sales transactions on the token trading platform. In addition, it can be converted into virtual currency, points, and other value information having exchange value.

The communication network 3 is an IP network using the communication protocol TCP/IP, and includes various communication lines (telephone lines, ISDN lines, ADSL lines, public lines such as optical lines, leased lines, WCDMA (registered trademark) and CDMA2000). In addition to third generation (3G) communication methods such as LTE, fourth generation (4G) communication methods such as LTE, and fifth generation (5G) and later communication methods, Wifi (registered trademark), Bluetooth (registered trademark) ) and other wireless communication networks) are interconnected to form a distributed communication network. This IP network includes LANs such as intranets (networks within companies) and home networks based on 10BASE-T, 100BASE-TX, and the like.

(Configuration of each device)
Next, the configuration of each device will be described. The term "module" used in the description refers to a functional unit configured by hardware such as a device or equipment, or software having such functions, or a combination thereof, to achieve a predetermined operation. .

(1) User system 4
As shown in FIG. 2, the user system 4 is general power equipment owned by each consumer or power prosumer, and is also a unit that consumes power, and may include power generation and power storage equipment. Examples of power generation facilities include solar power generation and wind power generation. This user system 4 includes a power control terminal 40 as a power trading unit and a smart meter 41 as a performance data generating unit.

The power control terminal 40 installed in each user system 4 is an information processing terminal equipped with a communication function and a CPU, and various functions can be implemented by installing an OS, firmware, and various application software. In form, it functions as a power trading unit by installing and running an application. The information processing terminal for the agent can be realized by, for example, a smartphone or a dedicated device with specialized functions, in addition to a personal computer, and includes a tablet PC, a mobile computer, and a mobile phone.

Specifically, the power control terminal 40 includes a CPU 402, a memory 403, an input interface 404, a storage device 401, an output interface 405, and a communication interface 406, as shown in FIG. In this embodiment, these devices are connected via the CPU bus 400, and can exchange data with each other. The function of the power control terminal 40 as the power trading unit includes, for example, sale data D21 including the power supply period, power amount (quantity), and consideration amount (selling price or purchase price) as shown in FIG. Alternatively, purchase data D22 may be generated during a trading period that is a predetermined period (for example, 24 hours) before the start of the power usage period.

The memory 403 and the storage device 401 are devices that store data in a recording medium and read out the stored data in response to requests from respective devices. It can be configured by a memory card or the like.

The input interface 404 is a module that receives control signals from each facility installed in the user system. The received control signals are transmitted to the CPU 402 and processed by the OS and each application. On the other hand, the output interface 405 is a module that outputs control signals to each facility installed in the user system. Each facility installed in such a user system differs depending on the form of the consumer or prosumer. Some have both power storage facilities, some have either photovoltaic power generation or storage battery facilities, and some have neither power generation nor power storage facilities. In the prosumer, power consumption is measured by a smart meter 41, and control signals for a photovoltaic power generation (PV) 42 and a storage battery 42 are input/output.

Here, the smart meter 41 is a performance data generation unit that comprehensively manages power generation, storage, and power consumption within the user system, which is a unit of demand. Other facilities such as storage batteries and photovoltaic power generation are also controlled and managed, and the amount of power generated, stored, or consumed by the consumer during each power usage period is measured, and actual data such as shown in FIG. 16 is obtained. D3 is generated and periodically sent to the PPS, electric power company, and mediation server 2. The performance data D3 is sent directly to the PPS, electric power company, and mediation server 2 via the Internet, telephone line, dedicated line, or the like.

The communication interface 406 is a module that transmits and receives data to and from other communication devices. Communication methods include, for example, a telephone line, an ISDN line, an ADSL line, a public line such as an optical line, a dedicated line, and WCDMA (registered trademark). And third generation (3G) communication methods such as CDMA2000, fourth generation (4G) communication methods such as LTE, and fifth generation (5G) and later communication methods, as well as Wifi (registered trademark), Bluetooth ( (trademark)) and other wireless communication networks.

The CPU 402 is a device that performs various arithmetic processes necessary for controlling each unit, and virtually constructs various modules on the CPU 11 by executing various programs. An OS (Operating System) is activated and executed on this CPU 402 , and the basic functions of each power control terminal 40 are managed and controlled by this OS. Various applications can be executed on this OS, and various functional modules are virtually constructed on the CPU by executing the OS program on the CPU 402 .

In this embodiment, by executing browser software on the CPU 402, information on the system can be viewed and information can be input through this browser software. More specifically, this browser software is a module for browsing Web pages, downloads HTML (HyperText Markup Language) files, image files, music files, etc. from the mediation server 2 through the communication network 3, and analyzes the layout. to display/play. With this browser software, users can use forms to send data to a web server and run application software written in JavaScript (registered trademark), Flash, and Java (registered trademark). Through this browser software, each user can use the token transaction mediation service provided by the mediation server 2 .

In this embodiment, the power trading unit 402a is configured on the CPU 402 by executing browser software on the CPU 402 and accessing the token trading platform provided by the brokerage server 2 through the browser software. The power trading unit 402a is a module that generates sale data or purchase data of power trading tokens. In addition, the browser software can access the transaction history providing unit 64a of the guarantee system 6 to view information related to tokens related to transactions (agreement data, sale data, purchase data, etc.). , the method of generating the sold electric power and the transaction history of the electric power can be viewed.

(2) Mediation server 2
The mediation server 2 is a server device managed and operated by a power trading service provider, and provides a power trading service, and in this embodiment, provides an environmental value digital art generation service. As for power trading, a user who wishes to buy and sell power can access the mediation server 2 through the communication network 3 and execute a power transaction via the token trading platform provided by the mediation server 2 . Specifically, as shown in FIG. 4, the intermediary server 2 includes a user management unit 22, a communication interface 23, a token management unit 24, a power transaction execution unit 25, a performance data management unit 26, and a digital art generation unit 27. and In addition, the mediation server 2 has a database group, and the database group includes a token management database 21a, a user database 21b, a performance management database 21c, a power transaction management database 21d, and a material database 21e. included.

The communication interface 23 is a module that transmits and receives data to and from other communication devices through the communication network 3. In this embodiment, each power control terminal 40 and smart meter 41 and the warranty system 6 are connected to provide this service. It is connected to the.

The user management unit 22 is a module for managing users, and includes an authentication unit 22a and a member registration unit 22b. The authentication unit 22a is a computer or software having the function of verifying the legitimacy of an accessor involved in power transactions, and performs authentication processing based on a user ID that identifies a user. In this embodiment, by obtaining a user ID and password from the accessor's terminal device through the communication network 3 and checking the user database 21b, it is possible to determine whether or not the accessor has the right to access the accessor. Check if there is. As a prerequisite for authentication processing by the authentication section 22a, the user must be registered as a member through the member registration section 22b, and authentication information such as a user ID and password is held in the user database 21b by this member registration.

The power transaction execution unit 25 is a module that mediates power transactions through the communication network 3, and in this embodiment, includes a contract data generation unit 25a and a guarantee system cooperation unit 25b.

The agreement data generation unit 25a generates agreement data D1 of a successful transaction based on the sales data D21 and the purchase data D22. More specifically, the power transaction executing unit 25 collates the sale data D21 and the purchase data D22, which are the demand conditions of the buyer Ub and the suppliable conditions of the seller Ua, and matches the corresponding combinations to complete the transaction. , contract data D1 describing information such as supply source, power generation method, supply availability time, power price, etc., which are demand conditions and supply availability conditions of the concluded transaction, is generated.

The guarantee system cooperation unit 25b requests the guarantee system 6 on the network to perform processing necessary for power transactions, such as crediting related to power transactions, security management, and storage of transaction records, and cooperates with the guarantee system 6. This is the module that advances the process. The power transaction executing unit 25 manages the exchange of various tokens by linking with the guarantee system 6 through the guarantee system linking unit 25b, adds public addresses related to the acquirers of the tokens, and authenticates them with each token. Transfer ownership by changing ownership of various rights.

A blockchain interface service (guarantee system) 6 comprises a plurality of nodes that encrypt and store at least a portion of environmental value information, environmental value art, and information on their ownership. These nodes aggregate at a predetermined timing at least a part of the environmental value information, the environmental value art, and the information about the ownership into blocks, connect the blocks to existing blocks to form a block chain, and form a block chain. is shared by multiple nodes and stored as a distributed ledger. The cryptographic key for generating environmental value digital art in this embodiment is a hash value obtained from an existing block. The hash value as the encryption key is obtained by the hash value obtaining section 27c, input to the algorithm execution section 28, and used for the generation of environmental value digital art.

The token management unit 24 is a module that executes and manages the generation (issue), transfer, and cancellation of various tokens, and cooperates with the guarantee system cooperation unit 25b of the power transaction execution unit 25 to issue, transfer, or cancel various tokens. Update the data in various tokens in order to execute Specifically, the token management unit 24 includes a token issuing unit 24a, a token erasing unit 24b, and a token transferring unit 24c.

The token issuing unit 24a is a module that issues various coin tokens to users in response to user requests. For example, based on performance data, issue power trading tokens to users who have power that can be sold by power generation facilities, or derive power trading tokens for generated power by analyzing performance data Generating an environmental value token, which is value information according to the degree of contribution to the environment of each power generation method and storage method, and also according to the economic effect of implementing power demand control (DR control) It also generates environmental value tokens as value information.

In this embodiment, the token issuing unit 24a issues environmental value tokens based on the amount of _CO2 reduction by the power generation method or the self-consumption amount included in the performance data. For example, if the power generation method included in the performance data is based on reusable energy such as photovoltaic power generation or wind power generation, the token issuing unit 24a determines the amount of power generated by the power generation method and the amount of power generated by the power generation method. _CO2 reduction table data that lists the corresponding relationship with the amount of _CO2 that is generated, and _based on the amount of power generation included in the actual data Determine the quantity and issue environmental value tokens of the determined value or quantity. The issued environmental value tokens are accumulated in the token pool as owned by the power generator included in the performance data.

Further, for example, when the power generation method included in the performance data is based on reusable energy such as solar power generation or wind power generation, and the power is self-consumed, the token issuing unit 24a We maintain self-consumption table data that lists the correspondence between the amount of _CO2 reduced by self-consumption and energy loss due to power transmission and distribution. By referring to it, the value and quantity of the environmental value tokens are determined, and the environmental value tokens of the determined value or quantity are issued. The issued environmental value tokens are accumulated in the token pool as owned by users who have consumed them themselves, which is included in the performance data.

The token erasing unit 24b is a module for erasing the power trading token based on the performance data D3, or erasing the environmental value token related to the transfer request. Here, the cancellation of a token refers to the process of losing its exchange value as currency, such as setting the value to 0, deleting the private key or storing it in an account that is made unrewritable by the owner. Note that the token erasing unit 24b may be provided with a function of converting various tokens into money according to their market prices. This function acquires information on the market price of various tokens from the network and settles them to convert them into real currency, virtual currency, points, and other value information with exchange value. In addition, the token erasure unit 24b generates or acquires fixed data including fixed values of the amount of power generated or used by each user during each power usage period and the amount of consideration for the power amount, and based on the fixed data may be provided with a function to settle the consideration paid or received by each user.

The token transfer unit 24c is a module that controls transfer of tokens by rewriting the ownership of each token. In this embodiment, a blockchain interface service is used for this rewriting. This token transfer is performed based on a transfer request that directs the transfer. This transfer request is, for example, data that is input from the power trading execution unit 25 when a token transaction is established in the power trading execution unit 25 or directly input from the power control terminal 40 by an operation by each user. This includes the type of tokens subject to the transfer, account information on the transfer source and transfer destination, and their quantity.

In particular, when the input transfer request requests the transfer of an electric power trading token or an environmental value token, the token transfer unit 24c transfers the requested electric power trading token when the target of the transfer request is an electric power trading token. When the object of the transfer request is the environmental value token, the environmental value token related to the request is canceled by the token erasing unit 24b, and information on the transfer included in the transfer request related to the erased environmental value token is generated as a transfer history. have a function. The transfer history related to this canceled environmental value token is recorded in a blockchain, which is a guarantee system, through the token trading platform so that it cannot be falsified.

The token management database 21a is a storage device that accumulates information about tokens that have been issued or canceled, and stores the owner of each token, its type, and price or quantity in association with each other. Various tokens are classified into a power trading token pool and an environmental value token pool according to their types and accumulated. In addition, related information such as transaction history regarding each token is also recorded in association with each token. For example, the transfer history issued when the environment value token is transferred is also recorded in association with the source environment value token that has been transferred and has a value of 0.

The user database 21b is a storage device for accumulating information on users of each consumer and companies such as aggregators. In this embodiment, personal information that identifies the user is not stored in the user database 21b, and only public account information that identifies each resident/user is stored. The credit information required for power transactions is evaluated by requesting the guarantee system 6 for credit on the public account belonging to each resident and responding to the request.

The performance management database 21c is a storage device that collects, accumulates, and manages performance data from parties involved in power transfer, such as power plants, consumers, and aggregators. Each performance data received from each smart meter is accumulated in this performance management database and used for token issuance, cancellation, and value evaluation. The power transaction management database 21d is a storage device that records transaction results of tokens.

At least part of the data accumulated in each of these databases 21a to 21d is recorded in the guarantee system 6 through the guarantee system linking section 25b. The guarantee system 6 aggregates at least a part of the data accumulated in each of the databases 21a to 21d into blocks at a predetermined timing in a node, forms a block chain using the blocks, and distributes the block chain to a plurality of It is shared by nodes and stored as a distributed ledger.

The performance data management unit 26 is a module that collects performance data from each user system and analyzes it to calculate the types and quantities of tokens to be issued. It is input to the unit 24 and used for token issuance and cancellation. Specifically, the performance data management unit 26 includes a value evaluation unit 26a.

The value evaluation unit 26a serves as an environmental value information generation unit that generates environmental value information, which is an evaluation of the degree of contribution to the environment of a consumption unit, based on performance data. It analyzes the measured value of the amount of power generated or consumed during the power usage period, the power generation data indicating the power generation method and the user who generated the power, or the power storage amount and the power storage data regarding the power storage period. The token management unit 24 issues or cancels an electric power transaction token, or issues an electric power transaction token based on the analysis result by the value evaluation unit 26a. In addition, the token issuing unit 24a generates an environmental value token, which is environmental value information, and electric power demand control as compensation for generating surplus electric power, based on the analysis result of performance data including power generation data or power storage data by the value evaluation unit 26a. Issue a token.

Furthermore, the performance data includes the type of power generation or storage related to the consumed power. It extracts the state of electricity stored by the type of electricity storage with a high degree of contribution, calculates the amount of power and the time period, and evaluates the value. Based on the analysis result of the performance data by the value evaluation unit 26a, the token issuing unit 24a issues an environmental value token when the power generated by the type of power generation with a high degree of contribution to the environment is stored in the type of power storage with a high degree of contribution to the environment. increase the value of

The digital art generation unit 27 is a module that generates environmental value digital art based on a cryptographic key according to a predetermined algorithm that uses the cryptographic key as a parameter. It has an execution unit 28, a data storage processing unit 27b, a hash value acquisition unit 27c, and a material database 21e.

The data storage processing unit 27b is a data storage unit that encrypts and stores at least part of the information on the ownership of the environmental value digital art together with the environmental value information. In this embodiment, the data storage processing unit 27b cooperates with the blockchain interface service 6, which is a guarantee system, to encrypt and store at least a part of the environmental value information and the information on the ownership of the environmental value digital art.

More specifically, in this embodiment, a so-called NFT (Non-Fungible Token) mechanism is used to store information on ownership of environmental value digital art. This NFT is also called a non-fungible token, meaning a unique data (token) with ownership and transmission rights issued on a blockchain that cannot be replaced. It can serve as an appraisal and ownership certificate for assets such as environmental value digital art. Specifically, the data storage processing unit 27b adds unique meta information for specifying the environmental value digital art completed by the algorithm execution unit 28 to the environmental value digital art, and stores the meta information in the guarantee system 6. It is stored in a distributed ledger system in a tamper-proof state through the blockchain interface service of . As this meta information, for example, a unique random number described in a predetermined area in the environmental value digital art data, a URL where the original environmental value digital art data can be viewed, or the environmental value digital art data It can be an extracted hash value, which is written into, for example, a dedicated token, NFT, and thereafter used as a means of verifying tampering. NFT that records this ownership or transmission right can be traded or sent and received in the same way as ordinary virtual currency.

The digital art generation unit 27 also includes an algorithm execution unit 28 in this embodiment. As shown in FIG. 5, the algorithm execution unit 28 includes a teacher data acquisition unit 28a, a teacher data selection unit 28b, an adversarial learning unit 28c, a generation neural network 28d, an identification neural network 28e, and an art output unit. 28f.

The generation neural network 28d is a module that generates new data, which is new environmental value digital art, using the encryption key as a base vector.

The discriminating neural network 28e extracts and learns the distribution of the feature amount related to the teacher data, compares the distribution of the learned feature amount with the distribution of the feature amount from the target data, and determines that the target data is the teacher data. It is a module that identifies whether it is data or other data.

The hostile learning unit 28c causes the discrimination neural network 28e to discriminate the nascent data, and back-propagates information about the nascent data misidentified as teacher data to the discrimination neural network 28e and the generation neural network 28d according to the discrimination result. This module updates the distribution of the feature quantity learned by the discriminating neural network 28e and updates the basis vectors in the generating neural network 28d.

The art output unit 28f is a module for outputting completed environmental value art D6 from new data finally generated by repeating the above-described hostile learning for a predetermined number of times. The environmental value digital art output from the art output unit 28f is input to the data storage processing unit 27b, and information on ownership of the digital art is recorded in a block chain using a method such as NFT.

The teacher data acquisition unit 28a is a module that acquires teacher data that serves as a motif for environmental value digital art. Specifically, arbitrary teacher data is selected from teacher data collected by the data collector 27a and accumulated in the material database 21e in response to a user's selection operation in the teacher data selector 28b, The acquired teacher data is transferred to the hostile learning unit 28c.

The teacher data selection unit 28b is a module that selects teacher data to be subjected to the above-described hostile learning according to a user operation. The discriminating neural network 28e and the generating neural network 28d, which are input to the neural network 28, perform adversarial learning as shown in FIG. 7 based on the teacher data selected by the teacher data selector 28b.

The data collection unit 27a is a module that searches the communication network 3 based on environmental value information and collects environmental value digital art related to the environmental value information as teacher data. For example, various digital art samples such as images, videos, music, texts, and game items distributed on the Internet, landscape photographs of the location of power plants related to the environmental value information, and related specialties The data collection unit 27a collects all kinds of content that can serve as motifs for digital art, such as images, videos, music, texts, and portraits of people who belong to consumers, which give an image of power generation methods such as solar power generation and wind power generation. be done.

(3) Guarantee system 6
As described above, in this embodiment, the guarantee system 6 is provided between the power control terminals 40 on the power selling side and the power buying side, which perform power trading via various tokens, and guarantees power trading and token trading. ing. Specifically, as shown in FIG. 6, the guarantee system 6 includes a communication interface 63, an authentication unit 62, a token transaction execution unit 64, a token transaction history database 61a, a key information database 61b, and an account database 61c. It has

The communication interface 63 is a module that transmits and receives data to and from other communication devices via the communication network 3, and is connected to each mediation server 2 and each power control terminal 40 in this embodiment. The authentication unit 62 is a computer or software having the function of verifying the legitimacy of an accessor, and executes authentication processing based on a user ID that identifies each user. In the present embodiment, a user-specific public address, public key, user ID, password, etc. are obtained from the accessor's power control terminal 40 through the communication network 3, and the key information database 61b is collated to provide the accessor with the information. Confirm whether or not there is a right, and whether or not the accessor is the person himself/herself.

The token transaction execution unit 64 is an electric power trading token that tokenizes the right to sell or consume electric power as a virtual coin, and the added value derived from the electric power generation method and the electric power storage method, which is derived from the electric power trading token. This module handles environment value tokens. These various tokens are linked to the public accounts of their legitimate owners, and by presenting the relationship of the public account, it is possible to prove that you are the legitimate owner of the token, It is designed so that only a third party can carry out transfer procedures such as assignment of the token. In this embodiment, the token transaction execution unit 64 includes a guarantee system cooperation function, a public address management unit 64b, a validity verification unit 64c, and a data update unit 64d.

The guarantee system cooperation function is requested by another service organization device, for example, the intermediary server 2, for processing related to token transactions, such as credit related to power transactions, security management, transaction records, and service history storage, and communicates with these devices. It is a module that cooperates to proceed with processing. In addition, in this embodiment, the guarantee system cooperation function provides information such as transaction values of various tokens to the mediation server 2 side.

The public address management unit 64b includes a public address generated from a public key in public key cryptography and used to identify a specific user, and a private key paired with the public key and capable of identifying the public key, It functions as an address issuing unit that issues private keys used for electronic signatures for power transactions via public addresses, and these issued public addresses and related key information are stored in the key information database 61b.

The legitimacy verification unit 64c is a module that verifies that various tokens related to token trading or power trading belong to the current owner through legitimate transactions and that they have not been tampered with, and are linked to public accounts. With the attached public key of the current owner, the validity of the token can be confirmed. By collating the history database 61a, the correctness can be confirmed.

A data updater 64d obtains power information for various tokens, adds public addresses for new token owners, and transfers ownership of tokens by changing the token owner as evidenced by the distributed ledger. is a module. Data update by the data update unit 64d is protected by a high level of security, and double transfer and falsification of transaction history are strongly prevented.

(Generation processing of environmental value digital art)
By operating the power trading system described above, the environmental value digital art generation processing of the present invention can be carried out. FIG. 7 shows an overview of the environmental value digital art generation process according to this embodiment. In this embodiment, the digital art generation unit 27 uses the hash value D50 as a cryptographic key, and generates environmental value digital art based on the cryptographic key according to a predetermined algorithm that uses the hash value D50 as a parameter. As the hash value D50 as the encryption key, the hash value D50 obtained from the existing block in the block chain explained with reference to FIGS. 13 to 15 is used.

To describe the digital art generation process in detail, first, the teacher data acquisition unit 28a performs a teacher data acquisition step for acquiring teacher data that becomes the motif of the environmental value digital art. This training data is collected, for example, by the data collection unit 27a and accumulated in the material database 21e. Based on the selection operation by the training data selection unit 28b, the training data acquisition unit 28a extracts the related training data D51 from the material database 21e. It is read out and input to the discrimination neural network 28e. The training data D51 includes, for example, various digital art samples such as images, videos, music, texts, and game items distributed on the Internet, and landscapes of locations of power plants related to the environmental value information. Any content that can serve as a motif for digital art, such as photographs, related specialties, images, videos, music, texts, and portraits of people who belong to consumers, such as images and videos that give an image of power generation methods such as solar power generation and wind power generation. It is included.

Receiving the input of this teacher data D51, this discrimination neural network 28e extracts and learns the distribution of the feature amount related to the input teacher data D51, and stores and holds the neural network constructed by this learning. In conjunction with this, the generating neural network 28d executes a generation step of generating new environmental value digital art, nascent data D52, using the hash value D50, which is the encryption key, as a base vector. The new data D52 is generated by using the hash value D50 as a base vector, deriving a large number of random number vectors from this base vector, and sending a large amount of the new data D52 to the identification neural network 28e.

Next, in the identification neural network 28e, the distribution of the feature amount learned using the teacher data D51 as described above and the distribution of the feature amount from the target data to be identified, that is, the new data D52 generated by the generation neural network 28d. By comparing , a discrimination step is executed to discriminate whether the target data is teacher data or other data (here, newly generated data D52).

As a result of this identification step, a data group identified as teacher data D51 is output. The output data group is divided into an output group Out1 that is truly teacher data D51 and an output group Out2 of new data D52 that is misidentified as teacher data by the hostile learning unit 28c according to the identification result. can be sorted out. Then, the hostile learning unit 28c back-propagates the information about the new data D52 in the output group Out2 misidentified as teacher data to the identification neural network 28e and the generation neural network 28d, and the features learned by the identification neural network 28e. An adversarial learning step is performed to update the basis vectors in the generative neural network 28d while causing the distribution of quantities to be updated.

In this adversarial learning step, the generating neural network 28d that has undergone backpropagation of the information on the misidentified new data D52 multiplies the random number vector on which D52 of the misidentified new data is based by the hash value D50. At the same time, a large number of new random number vectors are derived. On the other hand, in the discrimination neural network 28e that has received the backpropagation of the information on the erroneously recognized new data D52, the distribution of the feature amount of the backpropagated new data D52 is extracted and the neural network is updated.

After that, using the derived random number vector as a new parameter, a generation step is executed to generate nascent data D52, which is a new environmental value digital art. After repeating the adversarial learning step of backpropagation for a predetermined number of times, the art output unit 28f outputs the new data D52 included in the final output group Out2 as the completed environmental value art D6.

(Operation of power trading system)
By operating the power trading system described above, the power trading service according to the present embodiment can be provided. FIG. 8 is a sequence diagram showing system operations when issuing tokens in the power trading service, and FIG. 9 is a sequence diagram showing system operations when power is purchased and consumed in the power trading service. Note that the processing procedure described below is merely an example, and each processing may be changed as much as possible. Further, in the processing procedures described below, steps can be omitted, replaced, or added as appropriate according to the embodiment.

As shown in FIG. 8, first, when selling power, the user system on the power selling side measures the necessary power generation amount, power storage amount, and power consumption according to the facilities of each user system (S101). . Based on this measurement, power generation data, power storage data, and power consumption data are generated (S102), these data are aggregated by the smart meter 41, and reported to the mediation server 2 as performance data (S103). The performance data collected from each user system is totaled for each user system in the mediation server 2 (S201).

Next, the user system on the power selling side transmits a token issuance request to the mediation server (S104). Upon receiving this token issuance request (S202), the intermediary server 2 analyzes the power generation data, power storage data, and power consumption data contained in the received token issuance request (S203), and also analyzes various power generation methods in the market. Market information such as purchase prices and sales prices of electricity is collected (S204).

Then, an electric power trading token is generated and, if necessary, an environmental value token, which is environmental value information, is issued (S205 and S206). Specifically, the token issuing unit 24a issues environmental value tokens based on the amount of _CO2 reduction by the power generation method or the self-consumption amount included in the performance data. For example, in step S206, if the power generation method included in the performance data is based on reusable energy such as solar power generation or wind power generation, the token issuing unit 24a determines the amount of power generation included in the performance data. ₂ The reduction table data is referred to determine the value and quantity of the environmental value tokens, and the determined value or quantity of the environmental value tokens is issued as the environmental value information. The issued environmental value tokens are accumulated in the token pool as owned by the power generator included in the performance data.

For example, in step S206, when the power generation method included in the performance data is based on reusable energy such as solar power generation or wind power generation, and the power is self-consumed, Based on the self-consumption amount contained in the performance data, the self-consumption table data is referred to determine the value and quantity of the environmental value tokens, and the environmental value tokens of the determined value or quantity are issued. The issued environmental value tokens are accumulated in the token pool as owned by users who have consumed them themselves, which is included in the performance data.

Various tokens issued in this manner are recorded in the blockchain through the guarantee system cooperation unit 25b. For this recording, the hash value is extracted from the existing block, based on which the information regarding the token related to the recording is written in the new block, and the new block is linked to the existing block. Here, if the token related to the record is an environmental value token, the hash value extracted during block concatenation is used to generate the environmental value digital art.

At this time, the user who sent the token issuance request is pooled as ownership and recorded in the blockchain, processed to be stored in the user's account, and recorded in the guarantee system 6 (S207). Thereafter, the mediation server 2 notifies the user system of completion of token issuance, and the user system executes token issuance completion processing (S105).

Here, the user system transmits a token sale request to the intermediation server 2 to sell the issued token (S106), and the intermediation server 2 receives the token sale request (S208), and sells the token. Tokens related to are pooled as trading targets.

Next, the case of purchasing and consuming electric power will be described. As shown in FIG. 9, first, when power is purchased, the user system on the power purchase side transmits a token purchase request to the mediation server 2 (S401). This token purchase request contains purchase data, and the purchase data designates a predetermined number of kilowatts of power trading tokens that the purchaser wishes to purchase. Upon receiving this token purchase request (S301), the intermediation server 2 searches the power transaction management database 21d for tokens that meet the conditions specified in the purchase request. If a token that meets the conditions is found, ownership transfer processing is executed for that token (S402).

In this step S402, the token transfer unit 24c controls transfer of tokens by rewriting ownership of each token. This token transfer is performed based on a transfer request that directs the transfer. This transfer request is, for example, data that is input from the power trading execution unit 25 when a token transaction is established in the power trading execution unit 25, or is data that is directly input from the power control terminal 40 by the operation of each user. It includes the type of target token, account information on the transfer source and transfer destination, and its quantity.

In particular, when the input transfer request requests the transfer of an electric power trading token or an environmental value token, the token transfer unit 24c transfers the requested electric power trading token when the target of the transfer request is an electric power trading token. When the object of the transfer request is the environmental value token, the environmental value token related to the request is canceled by the token erasing unit 24b, and information on the transfer included in the transfer request related to the erased environmental value token is generated as a transfer history. .

After the token transfer processing is completed, the guarantee system executes account processing regarding the token transfer (S303). At this time, the transfer history of the erased environmental value token is also recorded in the blockchain, which is the guarantee system, through the token trading platform so that it cannot be falsified. On the other hand, in the user system on the power buying side, power control is also changed according to the transfer of the token (S403), the number of power trading tokens owned by the user on the power buying side increases, and the amount of power corresponding to the power trading tokens owned by the user on the power buying side increases. can be linked.

In the user system on the power purchase side, the smart meter tallies and reports to the mediation server 2 (S405), and the mediation server 2 aggregates the reports from each user system as power information (S304). , extracts information on the power consumption of each user system from the aggregated information (S305). The mediation server 2 then generates power consumption data on the power consumed by each user system (S306).

Next, the power trading token is canceled based on the generated power consumption data (S307). In response to the cancellation of the power trading token, the guarantee system executes account processing regarding the cancellation of the corresponding token (S308). The guarantee system 6 executes processing for canceling the value of the token, such as canceling the corresponding token or setting the value of the token to 0, and records it in the node. After that, the mediation server 2 notifies the user system of completion of token cancellation, and the user system executes token issuance completion processing (S406). After this token is canceled, the remaining tokens owned by the user are reduced, so the upper limit of power that can be used in the unit period is reduced.

(Operation during token transfer transaction)
Here, the token transfer processing in step S402 will be described in detail. FIG. 10 is a flow diagram illustrating the processing procedure at the time of transfer of the power trading system according to this embodiment, and FIG. 11 illustrates the relationship between the public key and private key according to this embodiment.

In this embodiment, the mechanism of the distributed ledger system according to this embodiment is used for token transfer processing and account processing related to token transfer. Here, a case where a seller Ua sells power trading tokens to a new buyer Ub through a token trading platform will be described as an example. As shown in FIG. 10, this power trading transaction includes a public address and secret key issuing step S501, a related service history information registration processing step S502, and a rights transfer processing execution step S503.

First, in step S501, in the mediation server 2, the public address management unit 64b functions as an address issuing unit, and this public address management unit 64b corresponds to the public address PA3 unique to the token trading platform and the pool public address PA3. A pair with a private key SK3 to be used is issued. Specifically, as exemplified in FIG. 11, the brokerage server 2 uses a random number generator or the like to generate a private key SK3 associated with a public address unique to the token trading platform using public key cryptography. do. The random number generator may be built in the public address management unit 64b as a program, for example. As described above, this private key SK3 is used for the electronic signature of the transaction (here, the sale from the token trading platform to the buyer Ub) with the paired pool public address PA3 as the power transfer source.

Next, the mediation server 2 generates a public key PK3 from the private key SK3 based on an electronic signature algorithm such as Elliptic Curve Digital Signature Algorithm (ESDSSA). The generated public key PK3 and private key SK3 form a key pair in the public key cryptosystem. From the point of view of the amount of calculation, it is impossible to generate the secret key SK3 from . In other words, the private key SK3 cannot be specified from the public key PK3, but the public key PK3 can be specified from the private key SK3. The type of electronic signature algorithm to be used is not limited to the elliptic curve DSA, and may be appropriately selected according to the embodiment.

Subsequently, the mediation server 2 applies a one-way hash function such as SHA-256, RIPEMD-160, etc. to the public key PK3 to generate a pool public address PA3 from the public key PK3. For example, intermediation server 2 may generate public pool address PA3 by applying SHA-256 to public key PK3 twice. That is, this pool public address PA3 is a hash value of the public key used for signing the transaction described above, and is used to identify the transfer destination and transfer source of the token. Since a one-way hash function is used to generate the pool public address PA3, as shown in FIG. 11, it is possible to generate the pool public address PA3 from the public key PK3. It is configured such that it is impossible to generate the public key PK3 from the address PA3.

In the next step S502, the transaction history data associated with each token, such as the history of services provided to the electricity token trading platform by the seller Ua, who is the electricity seller, is linked to the pool public address PA3 generated in step S501. and record to the node. Specifically, as illustrated in FIG. 12, performance data and the like acquired by the mediation server 2 are linked to the public address PA3 for the pool and published. This performance data can be freely viewed by anyone who has obtained the public key PK3 related to the pool public address PA3. As a result, it becomes possible for anyone to verify fraudulent activity such as fraudulent or tampered history of the power generation method, power generation location, etc. from which the power is derived, and the transaction history.

Thereafter, in step S503, the mediation server 2 conducts a right transfer transaction for the pool public address PA3 generated in step S501 according to predetermined power transfer conditions. Then, when the transfer is completed, the mediation server 2 terminates the processing related to this operation example. Here, an application executed on the power control terminal 40 or the like is used for exchanging various tokens according to the present embodiment. Therefore, in FIG. 10, an application for executing a token transaction mechanism is also installed in the public address management unit 64b of the mediation server 2, and this application controls the pool public addresses managed by the platform.

While the power token belongs to the seller Ua, the token is stored in the power control terminal 40 of the seller Ua, where the public address PAa unique to the seller Ua is associated with the paired private key SKa, and in the token trading platform , when the transfer procedure is taken, the seller Ua uses the power control terminal 40 to transfer the token from the public address PAa (transfer source) to the pool public address PA3 (transfer destination) generated by the power trading company in step S501. can be temporarily relocated and pooled.

On the other hand, the buyer Ub, who wishes to newly purchase power, uses his own power control terminal 40 to obtain the public key PK3 to which the power trading token is linked, as illustrated in FIG. The buyer Ub can view the power generation data and transaction progress information related to power associated with the pool public address PA3 of the token trading platform, and the related history by power.

Specifically, an application is also installed in the power control terminal 40 of the buyer Ub, and this application manages the public address PAb owned by the buyer Ub. The public address PAb is associated with one's own private key SKb, which allows the token to be transferred from one's public address PAb to another person. That is, each private key SKb allows the buyer Ub to freely use the token stored at the public address PAb and its transaction history. Here, the buyer Ub uses an application in the power control terminal 40 to receive the tokens transferred from the power trading specific pool public address PA3 to the public address PAb.

(Operation of guarantee system)
Here, the mechanism of the distributed ledger system adopted in the guarantee system described above will be described in detail. In this embodiment, the assurance system 6 provides a blockchain interface service comprising a plurality of nodes storing at least some or all of the data generated by each user system 4 or intermediary server 2; These nodes aggregate and block the stored data at a predetermined timing, form a block chain using the blocks, and store the block chain as a distributed ledger shared by the plurality of nodes.

Specifically, as shown in FIG. 12, the power trading system 1 according to the present embodiment uses a public key PKa and a private key SKa based on public key cryptography through the guarantee system 6 when issuing, transferring, and canceling various tokens. and generates a public address PAa from the public key PKa corresponding to the issued token. This public address PAa is used as an address indicating the transferee (buyer Ub) and the transferor (seller Ua) in the power transaction contract, while the private key SKa is used for the electronic signature of the transaction with the public address PAa as the transfer source. used.

Power trading according to this embodiment is performed between two nodes on a P2P (Peer-to-Peer) network 30 (here, between seller Ua and buyer Ub), and the transaction information is sent to each node in P2P network 30. 90a-90f to be broadcast and shared. As a result, a transaction history database (so-called block chain) is formed by a distributed ledger system on the P2P network 30, and transaction histories of various tokens and power transactions are stored.

In this embodiment, the transaction history database based on this distributed ledger system executes, approves, and manages power transaction contracts through the mediation server 2 when various tokens are issued and owners are rewritten. An intermediary for power trading (each power control terminal 40) generates a pool public address PA3 unique to the token trading platform (intermediary server 2) in order to mediate the transaction between the seller Ua and the buyer Ub. , the token to be traded is temporarily deposited in the token pool of the token trading platform, and relays the transfer of the token.

Then, the parties to the transaction (seller Ua and buyer Ub) use the power trading system 100 to once receive the token from the current seller Ua by transferring it to the token trading platform-specific pool public address PA3, Furthermore, by transferring to a new buyer Ub via the public address PA3, a sales contract for the power token trading platform is established between the seller Ua and the buyer Ub.

As a result, the buyer Ub, who is the transferee, can receive the token at his public address PAb, and can view the service history and use the service linked to this public address PA3. This public address may be issued by the brokerage server 2, or by software on each transaction user terminal, or by a server of an independent service management institution or financial institution. Here, with reference to FIGS. 12 to 15, a detailed mechanism of this electronic cryptocurrency transaction will be specifically described. FIG. 12 exemplifies the definition of transactions (transactions) relating to issuance, transfer, and cancellation of tokens, and FIGS. 13 to 15 exemplify part of the token transaction history (blockchain).

A transaction history regarding issuance/transfer/cancellation of each token is defined as a chain of electronic signatures illustrated in FIG. When transferring the transaction history to the next owner, the owner of each token electronically signs the hash value of the previous transaction and the hash value of the public key of the next owner with his/her own private key. Add what you did to the token's transaction history. Note that one-way hash functions such as SHA-256 and RIPEMD-160, for example, are used to calculate these hash values. At this time, when the latest hash value is electronically signed, the hash value is obtained by the hash value obtaining unit 27c as the hash value D50 so as to be used as the basis vector for generating the environmental value digital art.

In FIG. 13, as a specific example of a transaction, various tokens are transferred from owner Z to owner A, transferred from owner A to owner B, and further transferred from owner B to owner C. exemplified. In this case, when a token is transferred from owner A to owner B, owner A receives the hash value of the transfer transaction from owner Z to owner A and the public key of owner B, who is the next owner. The hash value is electronically signed with owner A's private key and added to the token.

Owners of tokens after this transaction, including owner B, transfer the value obtained by decrypting this electronic signature with owner A's public key from owner Z to owner A The hash value of the transaction and owner B's public By checking against the hash value of the key, it is possible to determine whether the transaction has been tampered with. Similarly, when a token is transferred from owner B to owner C, owner B receives the hash value of the transfer transaction from owner A to owner B and the public key of owner C, the next owner. The hash value is electronically signed with owner B's private key and added to the token. This makes it possible to determine whether or not the transfer transaction from owner B to owner C has been tampered with.

Various tokens can be defined as chains of such electronic signatures. Here, the hash value of the public key is the public address. That is, the tokens stored at this public address can be transferred only to those who can electronically sign power transactions with this public address as the transfer source, that is, to those who have the private key corresponding to this public address. . Therefore, the private key is generally kept secret so as not to be leaked to anyone other than the owner. Data such as tokens and related transaction history are stored at a public address tied to the current owner. Also, with only this electronic signature, it is not possible to verify that one of the past owners of this token has used the token multiple times (multiple transfers). In the mechanism, this multiple use is prevented using a mechanism called block chain illustrated in FIGS. 14 and 15 .

As illustrated in FIGS. 14 and 15, each block recorded in a token or the like stores a plurality of transactions, a nonce, and the hash value of the previous block. A nonce is a disposable random value used in cryptographic communication, and among the nodes (miners) 60a to 60f, the node (miner) that first discovers this value blocks the block that discovers the nonce as an approver. Update the blockchain by adding to the end of the chain. As a result, a consistent transaction history is recorded in the block chain, and by sharing this block chain among all the nodes 90a to 90f participating in the P2P network 30, a consistent transaction history can be recorded in the entire P2P network 30. can be shared. That is, this block chain bears part or all of the token transaction history database 61a and the key information database 61b in the guarantee system 6 described above. In the present embodiment, in power trading based on public key cryptography, trading of various tokens is performed by such a mechanism.

(action/effect)
According to the present embodiment described above, at an exchange that trades power between a power supply side that generates power and a power consumer side that consumes power, the degree of contribution to the environment is evaluated as environmental value information. , the environmental value digital art is generated based on the encryption key unique to the environmental value information, which is used when the environmental value information is encrypted and stored. This generated environmental value digital art is not just a numerical value, but a one-of-a-kind art that can be possessed as a scarce property, and is more attractive to environmental value in electricity trading. High added value can be provided, and as a result, motivation for contributing to the environment can be aroused.

In particular, in this embodiment, since the so-called NFT (Non-Fungible Token) mechanism is used to store information on the ownership of environmental value digital art, NFT is an appraisal certificate or ownership certificate related to assets such as environmental value digital art. By acting as an environmental value digital art, falsification can be verified after generation.

In this embodiment, various tokens are issued based on the time and place of power generation and the power generation method, and the tokens can be used for power sales transactions and payment settlement. As a result, it is possible to accumulate and distribute added value as tokens for each transaction unit in diversifying power transactions such as environmental value transactions and control power transactions. Furthermore, since the blockchain interface service is also implemented, it is easy to enter from the existing interface. As a result, according to the present invention, in an electric power trading market in which diversified electric power values coexist, it is possible to appropriately evaluate the electric power value while freely linking the supply source and the demand destination to perform billing and trading. .

In particular, since we have adopted a distributed database mechanism as the guarantee system, there is no need to set up facilities for each business operator to manage and operate a single, robust system. Because the distributed database mechanism ensures a shared database for data sharing, privacy protection, and advanced security measures against data falsification, it is possible to reduce equipment and operating costs.

D1...Contract data D21...Sale data D22...Purchase data D3...Actual data D50...Hash value D51...Teacher data D52...Shinsei data D6...Environmental value art PAa...Public address PAb...Public address PKa...Public key SKa...Secret key SKb...Secret key Ua...Seller Ub...Buyer 1...Power trading system 2...Mediation server 3...Communication network 4...User system 6...Guarantee system 11...CPU
20 User system 21a Token management database 21b User database 21c Results management database 21d Power transaction management database 22 Authentication unit 23 Communication interface 24 Token management unit 24a Token issuing unit 24b Token erasing unit 24c Token Transfer section 25 Electricity transaction execution section 25a Agreement data generation section 25b Guarantee system cooperation section 26 Performance data management section 26a Value evaluation section 21a Token management database 21b User database 21c Performance management database 21d Electricity transaction management Database 21e Material database 22 User management unit 22a Authentication unit 22b Membership registration unit 23 Communication interface 24 Token management unit 24a Token issuing unit 24b Token erasing unit 24c Token transfer unit 25 Electric power transaction execution unit 25a Contract data generation unit 25b Guarantee system cooperation unit 26 Performance data management unit 26a Value evaluation unit 27 Digital art generation unit 27a Data collection unit 27b Data storage processing unit 27c Hash value acquisition unit 28 Algorithm execution unit 28a... Teacher data acquisition unit 28b... Teacher data selection unit 28c... Hostile learning unit 28d... Generation neural network 28e... Identification neural network 28f... Art output unit 30... P2P network 40... Power control terminal 41... Smart meter 42... Storage battery 61a Token transaction history database 61b Key information database 61c Account database 62 Authentication unit 63 Communication interface 64 Token transaction execution unit 64a Transaction history provision unit 64b Public address management unit 64c Validity verification unit 64d Data update Part 90a to 90f Node 100 Power trading system 400 CPU bus 401 Storage device 402 CPU
402a power trading unit 403 memory 404 input interface 405 output interface 406 communication interface

Claims (11)

a performance data generation unit that measures the amount of power generated or consumed for each power consumption unit and generates performance data including the measurement results and information on the measured power generation method;
an environmental value information generating unit that generates environmental value information, which is an evaluation of the degree of contribution to the environment of the consumption unit, based on the performance data;
storage means for encrypting and storing at least part of the environmental value information using a cryptographic key unique to the environmental value information; a digital art generation unit that generates environmental value digital art based on
and data storage means for encrypting and storing at least a part of information relating to the environmental value digital art or its ownership. the storage means includes a guarantee system linking unit that encrypts and stores at least part of the environmental value information in cooperation with the guarantee system;
The guarantee system comprises a plurality of nodes that encrypt and store at least part of the environmental value information;
The node aggregates at least a part of the environmental value information at a predetermined timing into a block, connects this block to an existing block to form a block chain, and shares the block chain with a plurality of the nodes. stored as a distributed ledger,
2. The environmental value digital art generation system according to claim 1, wherein the encryption key is a hash value obtained from the existing block. The digital art generation unit
a teacher data acquisition unit that acquires teacher data that serves as a motif for digital art;
By extracting and learning the distribution of the feature amount related to the training data, and comparing the distribution of the learned feature amount with the distribution of the feature amount from the target data, it is determined whether the target data is the training data or not. a discriminative neural network that identifies what is data;
a generative neural network that generates nascent data, which is new digital art, using the encryption key as a basis vector;
causing the discrimination neural network to discriminate the nascent data, back propagating information about the nascent data misidentified as teacher data to the discrimination neural network and the generation neural network according to the discrimination result, and making the discrimination neural network 3. The environmental value digital art generation system according to claim 1 or 2, further comprising a hostile learning unit that updates the distribution of learned feature quantities and updates the basis vectors in the generative neural network. 4. The environmental value digital art according to claim 3, further comprising a data collecting unit that searches a communication network based on the environmental value information and collects digital art related to the environmental value information as teacher data. generation system. further comprising a teacher data selection unit that selects teacher data to be provided for learning according to a user operation,
5. The environment value digital art generation system according to claim 3, wherein the generation neural network performs the learning based on the teacher data selected by the teacher data selector. the computer,
a performance data generation unit that measures the amount of power generated or consumed for each power consumption unit and generates performance data including the measurement results and information on the measured power generation method;
an environmental value information generating unit that generates environmental value information, which is an evaluation of the degree of contribution to the environment of the consumption unit, based on the performance data;
storage means for encrypting and storing at least part of the environmental value information using a cryptographic key unique to the environmental value information; a digital art generation unit that generates environmental value digital art based on
A program for generating environmental value art characterized by functioning as data storage means for encrypting and storing at least a part of information relating to the environmental value digital art or its ownership. the storage means includes a guarantee system linking unit that encrypts and stores at least part of the environmental value information in cooperation with the guarantee system;
The guarantee system comprises a plurality of nodes that encrypt and store at least part of the environmental value information;
The node aggregates at least a part of the environmental value information at a predetermined timing into a block, connects this block to an existing block to form a block chain, and shares the block chain with a plurality of the nodes. stored as a distributed ledger,
7. The environmental value digital art generation program according to claim 6, wherein the encryption key is a hash value obtained from the existing block. The digital art generation unit
a teacher data acquisition unit that acquires teacher data that serves as a motif for digital art;
By extracting and learning the distribution of the feature amount related to the training data, and comparing the distribution of the learned feature amount with the distribution of the feature amount from the target data, it is determined whether the target data is the training data or not. a discriminative neural network that identifies what is data;
a generative neural network that generates nascent data, which is new digital art, using the encryption key as a basis vector;
causing the discrimination neural network to discriminate the nascent data, back propagating information about the nascent data misidentified as teacher data to the discrimination neural network and the generation neural network according to the discrimination result, and making the discrimination neural network 8. The environment value digital art generation program according to claim 6 or 7, further comprising a hostile learning unit that updates the distribution of learned feature quantities and updates the basis vectors in the generation neural network. a performance data generation step in which the performance data generation unit measures the amount of power generated or consumed for each power consumption unit and generates performance data including the measurement result and information on the measured power generation method;
an environmental value information generating step in which the environmental value information generating unit generates environmental value information, which is an evaluation of the degree of contribution to the environment of the consumption unit, based on the performance data;
a storage step of encrypting at least a portion of the environmental value information using an encryption key unique to the environmental value information and storing it in a storage means; a digital art generation step of generating environmental value digital art based on the encryption key according to the algorithm of
and a data storage step of encrypting at least a part of the environmental value digital art or information relating to ownership thereof and storing the data in a data storage means. In the storing step,
the storage means encrypts and stores at least part of the environmental value information in cooperation with the guarantee system;
The guarantee system encrypts and stores at least part of the environmental value information in a plurality of nodes;
The node aggregates at least a part of the environmental value information at a predetermined timing into a block, connects this block to an existing block to form a block chain, and shares the block chain with a plurality of the nodes. stored as a distributed ledger,
10. The method of generating environmental value digital art according to claim 9, wherein the encryption key is a hash value obtained from the existing block. The digital art generating step includes:
a teacher data acquisition step in which a teacher data acquisition unit acquires teacher data that serves as a motif for digital art;
The discriminative neural network extracts and learns the distribution of the feature amount related to the training data, and compares the distribution of the learned feature amount with the distribution of the feature amount from the target data to determine that the target data is the training data. an identification step of identifying whether the data is
a generation step in which a generation neural network generates new data, which is a new digital art, using the encryption key as a basis vector;
A hostile learning unit causes the identification neural network to identify the nascent data, and back-propagates information about the nascent data misidentified as teacher data to the identification neural network and the generation neural network according to the identification result. 11. The environmental value according to claim 9 or 10, further comprising a hostile learning step of updating the distribution of the feature quantity learned by the discriminative neural network and updating the basis vectors in the generating neural network. How to generate digital art.

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