JP2020198060A - Network system and its operation method - Google Patents

Abstract

To provide and settle a remuneration by a token by making an EV stand function as an IoT apparatus by using a block chain technology, to enable the settlement integration of power use and power purchase, and linkage with a local currency in addition to a charge at the EV stand, to make created data useful in user information, a data analysis and apparatus management, to achieve a token community and economy, and to provide them.SOLUTION: An EV stand which is made to be an IoT apparatus by a block chain technology is networked. A user creates a wallet and an account by downloading an application, and receives a token as a remuneration of power use and power purchase by being linked with authentication and charge at the EV stand and a power company system on the basis of a business logic on a smart contract. By this constitution, an improvement of convenience, the integration of settlement management, and the modeling of a new business are achieved, and renewable energy/power supply, the EV stand, and a user-common platform can be provided.SELECTED DRAWING: Figure 1

Description

The present invention combines an EV stand and blockchain technology to make the EV stand function as an IoT device, enable charging history, data analysis and device status management, and enable token-based reward provision and settlement. Furthermore, it relates to a network system that realizes settlement integration with electric power use / purchase and cooperation with local currencies.

An electric vehicle (EV) is an eco-friendly and clean vehicle that does not burn fuel or emit exhaust gas while driving. In Japan, where petroleum fuels such as gasoline have to be imported, it is expected that the spread of EVs will reduce the cost of automobile fuel. In addition, the importance as a storage battery in an emergency such as a power outage due to an earthquake or disaster is also taken up.
As the shift from gasoline-powered vehicles to EVs progresses worldwide, the major issues in promoting the spread of EVs in Japan are the price of EVs and the spread of EV stands. The former is expected to be solved by the efforts of many manufacturers, including inexpensive storage batteries, but the spread of EV stands remains a major issue. The number of EV stands nationwide is increasing year by year, but the current situation is that the installation and operation of EV stands is carried out individually by companies and local governments.

On the other hand, conventional gas stations are managed and managed by affiliated companies, and do not necessarily match the optimization beyond affiliated companies and the provision of infrastructure that suits the characteristics of each region. In Japan, where the population is declining, it is necessary to take measures against SS depopulated areas.
In recent years, as IoT (Internet of Things), it is becoming possible for various devices other than IT devices such as personal computers and smartphones to connect via the Internet and exchange information to control each other. Even with EV stands, although there are differences depending on the model, it is possible to connect to a network.

In addition, blockchain is known as a technology that records transaction history on multiple terminals connected to the network and provides and pays rewards in the form of tokens.

JP-A-2018-197832

With the spread of electric vehicles (EVs), the spread and convenience of EV stands are indispensable. In order for users to use EVs with peace of mind without worrying about charging, a sufficient number of EV stands are required where they are needed. Currently, many EV stands are commercial facilities such as supermarkets, department stores, convenience stores, accommodation facilities, highway service areas, outdoor parking lots, car dealers, hospitals, coin parking lots, and public offices and roadside stations. It is scattered around the facility. If another EV is charging, you will have to wait for it to complete. Some EV stands may provide information on whether they are charging or available, but other EVs may suddenly come to charge while moving to charge an available EV stand. The prediction is difficult. In addition, electricity may be consumed more than expected due to bad weather or traffic jams. Especially in cold regions in winter, the power consumption by heating and heating wires is severe, and it can be said that the risk of running out of charge is especially high in areas such as Hokkaido where the distance traveled between urban areas is long.

In addition, the current situation is that the settlement of EV stands also differs for each operator. After becoming a member of a usage card issued by some charging service companies or automobile manufacturers and paying a monthly membership fee, you pay a usage fee according to the amount of each charge, or if you are not a member, you will be charged a higher fee. I have to pay. There are various payment methods such as credit card, cash, and online payment, and it is a risk if the user does not have a payment method that meets the requirements of the EV stand.

On the other hand, there are some issues in the spread of EV stands. First is the return on investment. In contrast to the installation cost and running costs such as operation management costs, electricity costs, maintenance costs, etc. for the network operator, the income of the operator is only the affiliated usage fee if it is affiliated with the network operator. Even if the government subsidies are used for the introduction, it is difficult to establish a sound business model. In addition, marketing and collaboration with other industries to promote usage have not been realized. In some local governments, it may be installed at government offices, roadside stations, etc. to provide infrastructure to residents and revitalize the region, but the cost of operation has exceeded and regional revitalization has not been realized. The reality is that there are many.

The spread and utilization of EV stands is not only the spread of EVs, but also the utilization of renewable energy. The feed-in tariff / FIT system was enforced in 2012 as a system for popularizing renewable energy, which does not emit carbon dioxide and is domestic energy, but the fixed price is being reduced year by year. ..

In 2009, the "surplus electricity purchase system," which is the predecessor of the FIT Law, was launched. Since the fixed purchase period of surplus electricity is 10 years, it is necessary to increase the self-consumption of electricity after 2019, select a new purchaser, or search for a new utilization method by yourself, but all the amount purchased so far. Compared to using the system, it is practically difficult to realize new utilization by yourself.

From a broader perspective on local power and energy management, issues at power companies are also important. An electric power company manages as a company while maintaining its role as a public utility that conducts electricity business for the benefit of society and the public. There, it is necessary to realize the four elements of environmental friendliness, supply stability, economy, and safety at the optimum ratio and level. At the same time, we must implement solutions to the issues facing Japan's electric power, such as increasing the number of power generators due to liberalization of electric power, increasing the proportion of environmentally friendly renewable energy, and maintaining infrastructure in an aging society and depopulation of regions. It will not be.

For that purpose, it is necessary to change from the conventional power structure of fuel energy mix, large-scale power generation, and long-distance power transmission. While fulfilling the role of a public utility that provides a stable supply of electric power, it not only manages its own power generation, but also manages the supply by businesses and individuals to realize optimal energy procurement, that is, as an energy platform operator and a leader in energy management. It is necessary to realize the role of. In addition, various information related to energy is exchanged here, but safe information management of many participants such as utilization and power generation participating in the platform is indispensable.

Furthermore, the spread of EV / EV stands will greatly contribute to the SDGs (Sustainable Development Goals). By 2030, one of our goals, "Energy for everyone and cleanliness," will significantly increase the proportion of renewable energy in the global energy mix, start doubling the rate of improvement in energy efficiency for the entire world, and "continue to live." Efficient use of resources in consideration of the environment and sustainability with a view to decarbonization and prevention of global warming in each of the goals of "creating a town that can be built", "responsibility to create", and "concrete measures against climate change"・ Control and control of consumption are required. EV / EV stands are a very important infrastructure for achieving this, and their widespread use is a major theme.
The present invention has been made to solve the above problems.

The EV stand itself is used as an IoT device via an adapter for connecting to the network, and the network applied to the technology used by the power system, EV stand, user terminal, and owner terminal is used as blockchain technology. It is a network system that can realize a new business model by bridging between technologies by constructing using.

This network is created by combining standard IT technology and blockchain technology. Adopting Ethereum as blockchain technology, coin management can be done with ERC-20 tokens, and reward rules related to token provision and settlement can be managed using smart contracts.

The EV stand is converted into an IoT device via an adapter for connecting the EV stand to the network. The user downloads the application, creates a wallet and an account, logs in to the EV stand that has been converted into an IoT device with his own account, and charges it. Based on the business logic of smart contracts created and managed on the API, tokens will be distributed as rewards according to actions such as charging.

A hash is generated for the data stored in the account, and the actual transactions and information are encrypted and managed by off-chain distributed data storage to optimize security, cost and performance.
If you choose to link the account created by the user with the user's power contract, you can link it to the customer management system of the power company you are using so that you do not have to make a payment every time you charge. , Can be settled along with the payment of the power contract. In addition, tokens can be provided according to the power supply and demand contract, EV stand usage, etc.

In addition, when the user generates electricity from renewable energy such as solar power and sells the surplus power to the electric power company, the power sale fee and the EV stand usage fee are offset, and the power receiving contract / EV It is also possible to provide tokens according to the use of the stand.
You can also exchange tokens for linked coins, etc. through the exchange module in API. Furthermore, through this network, it is possible to check the installation location of the EV stand and its usage status, and make a reservation for using the EV stand if necessary. In addition, it will be possible to statistic payment information for each EV stand and payment information for each user. The present invention is a connected blockchain EV stand network system (hereinafter referred to as "CBCEV stand system") and its operation method, which have the above configurations.

Each of these steps may be executed by the hardware constituting the network system, or may be executed by installing the software on a general-purpose computer.

With this invention, a new energy platform business model utilizing EV stands will be realized, and the spread of EV stands will be promoted. The spread of EV stands will lead to the promotion of EV spread. By realizing this on a network system that uses blockchain data decentralization and encryption technology, user information can be managed securely.

First, the EV stand will be converted to IoT. By storing the data related to the use of the EV stand in the blockchain, the necessary information is encrypted and safely exchanged and managed on the network, so even if the memory capacity of the EV stand is small, it can be used as an IoT device and used as a system. You can connect to.

For EV stand users, the number of EV stands will increase, and their location information and usage information can be obtained in a timely manner. Also, by making a reservation for using the EV stand, you can charge the EV without worry and with peace of mind. You can receive virtual currency tokens as an incentive for charging, etc., and use them at various services and stores through the next charging, monthly power contract payment, or exchange with externally linked coins.

Even if the EV stand is operated by a different operator, by linking the EV stand with the CBCEV stand network, you can log in with your own account and charge without paying a high fee for membership or non-members each time. You can do it. In addition to improving the convenience of payment by including it in the payment of the electricity supply and demand contract without making payment by credit card, cash, online, etc., statistics on the usage record of EV stand regardless of the provider of EV stand It will be possible to manage.

As the convenience of EV stands improves, EVs will become more widespread, and by using EVs as storage batteries, it will be used as a backup for optimizing household electricity bills and for measures in the event of a disaster or power outage. can.
Furthermore, if the user generates electricity from renewable energy such as solar power and sells the surplus electricity to the electric power company, it will be offset against the amount of electricity sold in the electricity receiving contract, and the power generation / sale will be done. It is also possible to provide the corresponding token.

Utilizing the platform, it will lead to the promotion of P2P (personal transaction) of electric power and the realization of the token community and token economy through transaction cost reduction and reliability assurance.

A sustainable business model will be realized for EV stand operators. In addition to the spread of EVs, it is possible to provide marketing effects by providing tokens at the time of charging and information on rechargeability to users. It is possible to build a new market by linking with the electricity supply and demand contract, collaborate with other industries such as providing points, and set prices according to demand.

Each local government will lead to the realization of transportation infrastructure provision to residents and the revitalization of the region. The above-mentioned business model has improved the balance of payments, and the stable EV stand area provides residents and visitors to the area with the opportunity to charge evenly. In addition to operating the EV stand alone, it is possible to issue local currencies that can be used for marketing in collaboration with administrative services and local businesses, as well as for regional revitalization and tourism promotion.

The EV stand will also be an opportunity to sell renewable energy after the feed-in tariff / FIT feed-in tariff period has passed. If businesses and individuals use surplus electricity to install EV stands themselves, it will lead to further improvement of the business model and the spread of EV stands.

In electric power companies, each element of environmental friendliness, supply stability, economy, and safety is optimized, and the value provided to users is improved. With the spread of EV / EV stands and renewable energy power generation, in terms of the environment, measures against global warming due to breaking away from dependence on fossil fuels, improvement of energy management and realization of self-sustaining distributed energy system will improve supply stability. ..

For many businesses, local governments, and individuals who enter the EV stand business, it is possible to provide the necessary functions in a batch, and a common platform with users who use the EV stand will be realized, leading to its development.

The spread of EV / EV stands, the promotion of renewable energy including local production for local consumption of energy in the region, and the contribution to the smart energy network that includes them are greatly related to the SDGs (Sustainable Development Goals).

This network system is depopulated in "Energy for everyone and cleanliness", the significant expansion of renewable energy, "Responsibility for making", Efficient use of natural resources, and "Creating a town where people can continue to live". It contributes to sustainable urbanization in the region and resilience to disasters.
These series of efforts will lead to decarbonization and prevention of global warming as "concrete measures against climate variability".

It is a network system block diagram of the whole invention. It is a blockchain network diagram in FIG. It is a user application diagram in FIG. It is a blockchain EV stand API figure in FIG. It is an off-chain distributed data storage diagram in FIG. It is an IoT device in FIG. This is a blockchain EV stand replacement module in FIG. This is an external application in FIG. The user in FIG.

Hereinafter, modes for carrying out the present invention will be described.
The network system consists of a combination of IoT and blockchain.

If you can connect to online services remotely via a network connection, various devices can be used as IoT devices. You can connect the EV stand to the network via an adapter and build a network combined with blockchain technology as an IoT device.

Blockchain network: The basis of this network system is a public or private blockchain network system (Fig. 2).
If the network system is used in private mode, it will connect to one or more private Ethereum networks. Users choose a public or private network when creating their account. If the account is a public network, it can be operated on the blockchain EV stand API described later. This can be used without learning specialized skills.

Private mode runs on Ethereum. User accounts and smart contracts for token creation are managed. Smart contracts are use case and account specific. Smart contracts are created and managed by the network system. This account setting and management can be used with various tools such as smartphones, IC cards, and in-vehicle sensors (Fig. 3).

Since the user count needs to provide the public key and private key for each transaction, it is necessary to keep these public and private keys. You can also choose to upload the key and store it on your network system to sign the transaction. However, in such a case, a warning message will be displayed stating that "it is the responsibility of the user", but we will take necessary steps to keep these keys safe to prevent theft and misuse.

Blockchain EV Stand API: The blockchain EV stand API server serves as the central access point for all these IoT devices and applications (Figure 4). This API is responsible for creating and managing all smart contracts on the Ethereum network. These smart contracts are used to execute business logic for use cases. It is also used to create and manage tokens.

If the account user decides to create a new ERC-20 token for their network, the API will create a new smart contract and upload it to the network in preparation for creating the new token.
Smart contracts, including business logic, are central to use cases and are used for token trading and payments. These contracts are individually designed by account or use case.

In addition, the rules for awarding points for specific actions can be defined by one smart contract.
If the network is running in private mode, you will not provide your Ethereum account and the API will also manage your wallet.
All settings and data linked to the blockchain EV stand account are managed by the API. Devices and applications can connect to the API and receive data.
This allows IoT and / or application designers to manage everything with the provided API without having to connect directly to a public or private Ethereum network.
In terms of performance and cost, not all business logic is executed through smart contracts. The logic of the use case and account application runs on the API server.

Off-chain distributed data storage: Saving a large amount of data in a blockchain network is a heavy burden in terms of network capacity, amount of data that can be processed within a certain period of time, and cost, but a network specialized in the field of data management These issues can be solved by using off-chain distributed data storage (Fig. 5) based on external distributed technology (off-chain technology). Use a distributed file sharing system like IPFS. A hash is created for the data you store in your account, and this hash is stored in your smart contract. The actual data is encrypted and stored on the IPFS network. This keeps all your data distributed and secure while ensuring optimal Ethereum cost and performance.

IoT devices: The purpose of network systems is to combine IoT and blockchain. To achieve this, in network systems, a wide variety of IoT devices can be connected via adapters (Fig. 6).

The requirement for an IoT device is that the device can connect to online services via a network connection. These requests are used to upload the obtained data to the network system.
Also, low memory usage is fine, but the device must be able to store a small amount of data inside the device via ROM or RAM. On-chain and off-chain technologies make it possible to build a distributed network even when the memory of IoT devices is small.
In addition, the data must be obtained by some form of sensor, manual input.

In view of these requirements, EV stands, smartphones, smart cards, etc. can be connected. It also allows different types of channels and applications to participate and build as a network. In the CBCEV stand system, there is no limit to the number and types of devices that can be connected to the network system, and various types can be mixed.
Each device connects to a network system according to the supported code.

Blockchain EV Stand Exchange Module: Exchange on the CBCEV stand system is different from the cryptocurrency exchanges that are normally traded online, and the tokens obtained by the participating users on the system are used as other coin services. It can only be exchanged for such as (Fig. 7).
There are each stage of "charging, reward, payment (exchange), management" described later, but at the stage of "charging / reward", the user is given an action such as charging at the EV stand participating in the CBCEV stand system. Tokens will be provided.

External application: When the user wants to use the acquired token for payment of services and products, he / she will build a linked application / e-shop that connects to the connected blockchain API (Fig. 8). Token payments are made via token smart contracts on Ethereum.

Users: Accounts are set up by a single user, but the actual network is used in different ways by many users in different roles (Figure 9).

Account administrators manage and operate all settings on the network system. You can set and manage which token was created, whether the system used is private or public, and whether it can be exchanged.
The average user who benefits from the reward system will mainly manage their wallet from a web or mobile application. You have a privately owned wallet, a web on a network system, or a mobile application. If the user does not want to connect his account to the network, the network system will take care of all the wallet management.

How to connect the EV stand to the blockchain network: To connect to the network, use an adapter. By using an adapter, the EV stand can be turned into an IoT device for general purposes and connected to the blockchain network. From a technical point of view, it is possible to encapsulate blockchain data. For that purpose, it is necessary to build a blockchain system suitable for the network connection of each EV stand.

Device and account management:
A client for the mobile application is created. This application allows the user to do all the processing of the account and manage the device. The functions of the application are as follows.
(1) Account creation, account deletion (2) Login to EV stand (3) Token list and remaining amount of each (4) Linkage with adapter (information sharing)
(5) Sending coins to users in the network (6) Token usage history Use this application to log in to the EV stand. Login EV
It will be like. In other words, like "Apple ID" and "Google ID", after login is completed from the device, it will be added to the device list and the account information will be synchronized.

In addition, data transitions such as the usage status of the EV stand are stored in a normal database, not in the blockchain, and cooperation with the EV stand via the adapter is performed through the API.

Application flow: The flow of using the application is as follows. The general flow using smartphone applications is explained below.
(1) Download the application from "Apple store", "Google Play store" or similar digital distribution network system.
(2) Create a new account (create a user wallet).
(3) Log in to the EV stand with the created account.
(4) The user ID is automatically displayed, the login process is completed, and the user's login token is saved on the EV stand side. When charging is complete, the amount and amount of charge will be saved.
(5) The user can pay the charging usage fee each time the battery is charged, or it can be included in the payment to the electric power company as described later.

Basic concept and usage of CBCEV stand system: The basic concept and usage of CBCEV stand system can be divided into four stages. Charging, rewards, payment (exchange), management. By focusing on these four pillars, it is possible to cover a wide range of use cases related to electricity and energy as well as charging in EV stands. Each stage can also be performed individually, depending on the use case.

Data that can be used as the basis for "rewards" must be available before entering the rewards, usage, and management stages. In the present invention, the EV stand functions as an IoT device, generates data and uploads it to the network system. The network system processes this data and prepares for the next stage of "reward" based on the settings and use cases.

During the "charging" stage, large amounts of data are uploaded and tracked. It is unwise to store all this information on the blockchain, it is expensive and has a negative impact on performance. Therefore, keep the data stored on the blockchain to a minimum and store everything else in a separate, secure and distributed system.

Once the data provided by the EV stand device is available, it is possible to implement a system that rewards a user's specific behavior.
These reward rules are implemented via smart contracts running on the Ethereum blockchain network. By creating a new smart contract for each account registered in the network system, all users of the service can customize the business logic and rules according to their wishes.

Depending on the rules and business logic, rewards are offered in tokens. These tokens are ERC-20 tokens that exist on the Ethereum network and are assigned to your account. These accounts are either personal accounts of users linked to the network system or generated on the network system.

The entire system is decentralized and public. However, the created ERC-20 token cannot be exchanged for another token.
At the "use" stage, the user can use the ERC20 token provided as a reward.

Users can trade tokens on the network system through external applications and exchange modules, and can use specific tokens as virtual currency in services or stores. Not only users but also businesses can exchange tokens and make payments when issuing tokens.

At the "management" stage, each EV stand and network administrator can upload various data such as user attributes and usage time to the blockchain. The data can be used for other use cases in this last phase. It is also possible to read data from outside the system, so data can be set and managed on other systems.

Smart contracts and their use: Smart contracts are computer programs that directly control the transfer of digital currencies and assets between parties under certain conditions. Smart contract contracts, like traditional contracts, can not only define rules and penalties associated with contracts, but can also automatically enforce mutual obligations.

Smart contracts are at the core of network systems, and all token-based economies run through these contracts.
As with various features on the network system, account users can adopt contracts that are used throughout the network system, or create or modify individual account-specific contracts.

Each smart contract on this network system is use case specific and based on the criteria and code for making payments, the business rules and logic for deciding when to get the token are determined. In the present invention, as described above, users and related parties customize their business logic and rules in their account settings, and obtain tokens as rewards by executing the actions specified in the smart contract. can do.

Common energy management system: Instead of using this network system for each EV stand owner / operating company, it is possible to build a common energy management system that can be linked with other affiliated EV stands and electric power services. In this case, you can send and receive services related to each EV stand on a common application. If a common application is adopted, the application will link the account and wallet as described above with each interface. This enables users to not only charge the EV stand but also make payments in combination with the power supply / demand contract / power receiving contract. Also, from the common energy management system, it will be possible to utilize the EV stand as a new marketing tool.

Adapter: An adapter is a module that is installed on the cable that connects the EV stand and EV. The adapter connects to the network and turns the EV stand into an IoT device. The adapter enables functions such as confirmation of EV stand installation information and availability information in the user's mobile application, and enables performance management when using the EV stand on the platform.

EV stand: The EV stand is a quick charger that uses a quick charging function that enables quick charging, and although it takes longer to charge than quick charging equipment, it can be installed at a relatively low cost. There are two types of chargers.
The user logs in to his account and charges at the EV stand.
Although it depends on the type of quick / normal charger and the device, the general EV stand charging method is as follows.
1. 1. Apply the brakes 2. Set the lever to P 3. Change the power switch to "LOOK" 4. Insert charging connector 5. Insert the plug on the charging cable into the outlet. Start charging 7. Charging completed (lamp off)
8. Remove the charging connector 9. Close the middle pig and lid on the vehicle body side

Claims (15)

The step of converting the EV stand into an IoT device via an adapter for connecting to the network,
The step of networking the IoT-equipped EV stand, user terminal, and owner terminal by blockchain technology, and
Steps to provide users and owners with EV stand status checks and configuration changes,
Steps to make automatic payments in transactions between users and owners,
How to operate a network system equipped with. Steps to create a wallet and account by downloading the application by the user,
A step of providing charging to the EV in response to the user logging in and using the IoT-equipped EV stand with an account, and
The method for operating a network system according to claim 1, further comprising. The method of operating a network system according to claim 1, further comprising a step of distributing tokens as a reward according to the use of a user based on the business logic of a smart contract created and managed on an API. The method of operating a network system according to claim 1, further comprising a step of generating a hash for the data stored in the account, encrypting the actual transaction / information, and managing the data in the off-chain distributed data storage. If the user chooses to link with the power contract, the step of making payment when paying the user's power contract without making payment when using charging,
Steps to provide tokens according to the user's power supply and demand contract and EV stand usage,
The method for operating a network system according to claim 1, further comprising. If the user is generating electricity in-house, the steps to offset the electricity sales fee and the EV stand usage fee,
The method of operating a network system according to claim 1, further comprising a step of providing a token according to a user's power receiving contract / EV stand usage. The method of operating a network system according to claim 1, further comprising a step of exchanging tokens for linked coins through an exchange module in the API. By constructing a distributed network for the network system using on-chain and off-chain technologies, the memory capacity of the IoT-equipped EV stand can be reduced, and the IoT-equipped EV stand can be used as a type. The method of operating a network system according to claim 1, further comprising a step of connecting between different channels or applications and tracking and analyzing user history and data across different channels or applications. The method of operating a network system according to claim 1, further comprising a step of converting an EV stand into an IoT device, managing its state, changing its settings, and managing the data held by each device in an integrated manner. Steps to work with the customer management system of the electric power company,
The steps to settle the payment between the EV stand usage fee and the electricity supply and demand contract, offset the payment between the EV stand usage fee and the electricity supply contract, and use the common token according to the contents.
The method of operating the network system according to claim 1, further provided. The steps to form the flow of usage and rewards by EV users and acquire the data,
Steps to provide tokens, new projects, or build advertising models that meet the needs of users based on the acquired data,
The method of operating the network system according to claim 1, further comprising By distributing the IoT-converted EV stands in the region, there are steps to create common tokens that transcend affiliates and businesses, or to exchange points for existing points in other industries.
The method of operating the network system according to claim 1, further comprising A step of networking the terminal of the first user who provides electricity and the terminal of the second user who uses electricity,
A step of providing electricity between the first user and the second user,
The method of operating the network system according to claim 1, further comprising Steps to provide users with information about energy and tokens for actions on the environment
Steps to donate and support with tokens obtained by users,
The method for operating a network system according to claim 1, further comprising. An EV stand that has been converted into an IoT device via an adapter for connecting the EV stand to the network, a user terminal, and a communication unit that networks the owner terminal by blockchain technology.
A provider that provides users and owners with EV stand status confirmation and setting changes,
An automatic settlement department that performs automatic settlement in transactions between users and owners,
A network system equipped with.