KR20200094380A - System for providing sharing service based on blockchain - Google Patents

Abstract

The present invention provides a blockchain-based sharing service providing system which is automated through a smart contract. According to an embodiment of the present invention, the blockchain-based sharing service providing system comprises: a sharer terminal; an owner terminal to acquire a sharer electronic wallet address from the sharer terminal; and a sharing service server to receive an owner electronic wallet address from the owner terminal, and request a blockchain to remit coins to the owner electronic wall address. The owner terminal requests the blockchain to remit coins to the sharer electronic wallet address from the owner electronic wallet address and execute a first smart contract to entrust the sharer terminal with a right to use a sharing service. The sharer terminal requests the blockchain to execute a second smart contract to execute a sharing service with respect to the sharer terminal. The blockchain verifies whether the sharer terminal has a right to the second smart contract, and requests the sharing service server to execute the sharing service with respect to the sharer terminal if the blockchain verifies that the sharer terminal has the right to the second smart contract.

Description

Blockchain based sharing service providing system and its method{SYSTEM FOR PROVIDING SHARING SERVICE BASED ON BLOCKCHAIN}

This embodiment relates to a technology for providing a sharing service based on a blockchain.

The sharing service may include a service that allows another person to own goods belonging to one person together, or to allow several persons to own one goods together.

The sharing service is a concept derived from the sharing economy, and can be broadly classified into three types: sharing, bartering, and cooperative communities depending on the type of transaction. Car sharing is a method that users can use without owning a product or service. Bartering refers to used trade mainly by redistributing unneeded products to those who need them. Finally, collaborative communities cover both tangible and intangible resources in a way through collaboration between users within a particular community. It is a shared service in the form of a collaborative community, such as Airbnb, which provides its own space to travelers, or Wizdom, a knowledge sharing platform.

However, shared services still pose risks due to lack of process and commerce awareness that are the basis for shaping the sharing economy. In particular, online transactions between individuals are low, and it is difficult to guarantee the quality of products or services.

In addition, in order for the owner and sharer to use a shared service such as car sharing, a separate central system or a third-party intermediary agency must perform the subscription and authentication of the shared service for both the owner and the sharer. A central system or a third-party intermediary organization may require a lot of management resources to comply with the sharing service subscription and authentication for an unspecified number of users.

Blockchain, on the other hand, is a distributed data storage technology that stores data in blocks, connects them in a chain, and duplicates and stores blocks simultaneously on numerous computers. Also called a public transaction ledger. Instead of keeping transaction records on a centralized server, transaction details are sent to all users participating in the transaction, and every transaction participant shares information and collates against it to prevent data forgery or tampering.

The distributed data management method of the blockchain is suitable for solving the problems of weak security, low transaction reliability, and increased management resources of the conventional centralized sharing service. Accordingly, in recent years, there has been an increasing demand for technology that applies blockchain to solve these problems.

Against this background, the purpose of this embodiment is to provide a shared service technology through authentication of blockchain participants without using a central server.

In addition, the object of this embodiment is to provide a technology for implementing an automated shared service system through a smart contract.

In order to achieve the above object, an embodiment, a sharer terminal; An owner terminal obtaining a sharer electronic wallet address from the sharer terminal; And a sharing service server that receives an owner electronic wallet address from an owner terminal and requests the blockchain to send a coin to the owner electronic wallet address. The owner terminal includes the sharer electronic from the owner electronic wallet address. Requesting the blockchain to send a coin to the wallet address and to execute the first smart contract that delegates the authority to use the sharing service to the sharer terminal, and the sharer terminal is configured to execute the share service for the sharer terminal. 2 Request the blockchain to execute a smart contract, and the blockchain checks whether the sharer terminal has the authority to the second smart contract, and the sharer terminal grants authority to the second smart contract. If it is confirmed to have, it is possible to provide a blockchain-based sharing service providing system requesting the sharing service server to execute the sharing service for the sharer terminal.

In the system, the owner terminal requests the shared service server to subscribe to the shared service, and when the shared service application is executed, the owner electronic wallet, the owner private key, and the owner public key are generated, and the shared service server comprises: The owner can approve the subscription of the terminal.

In the system, the sharer terminal may generate the sharer electronic wallet, sharer private key, and sharer public key when the share service application is executed.

In the system, the sharer terminal transmits a transaction executing the second smart contract to the blockchain, and the transaction can be signed with the sharer private key.

In the system, the blockchain can verify the second transaction signed with the sharer private key with the sharer public key.

In the system, the sharer public key may include the sharer electronic wallet address.

In the system, the owner terminal can recognize the image code displayed on the sharer terminal.

In another embodiment, the shared service server receives the owner electronic wallet address from the owner terminal; The sharing service server requesting a blockchain to send a coin to the owner's electronic wallet address; The owner terminal obtaining a sharer electronic wallet address from the sharer terminal; Requesting the blockchain to send a coin from the owner's electronic wallet address to the sharer's electronic wallet address and to execute the first smart contract to delegate sharing service usage rights to the sharer terminal; Requesting the blockchain to execute the second smart contract for the sharer terminal to execute a sharing service for the sharer terminal; A process in which the blockchain checks whether the sharer terminal is authorized to the second smart contract; And when the blockchain confirms that the sharer terminal has authority for the second smart contract, requesting the sharing service server to execute the sharing service for the sharer terminal. It is possible to provide a service providing method.

In the above method, the owner terminal requests a shared service subscription from the shared service server and the shared service server approves the owner terminal subscription; When the owner terminal executes the shared service application, the owner terminal generating the owner electronic wallet, the owner private key, and the owner public key; And when the sharer terminal executes the share service application, the sharer terminal generates the sharer electronic wallet, sharer private key, and sharer public key.

In the above method, the step of requesting the blockchain to execute the second smart contract includes the step of transmitting, by the sharer terminal, the transaction executing the second smart contract to the blockchain, wherein the transaction is , Signed with the sharer private key and verified with the sharer public key, the sharer public key may include the sharer electronic wallet address.

As described above, according to this embodiment, the sharer can use the shared service through the blockchain identification information generated by the individual instead of using the central authentication system, thereby minimizing trusted broker/manager costs or brokerage/management costs. Can.

In addition, according to this embodiment, it is possible to reduce the cost of building a shared service by providing an automated shared service through a smart contract.

In addition, according to this embodiment, the owner scans the sharer's blockchain wallet address in the form of a QR code to register the contract execution authority and the sharer executes, thereby omitting the sharing service subscription and authentication of the unspecified sharer and simplifying the delegation process have.

In addition, according to the present embodiment, it is possible to prevent the forgery and tampering of the shared service transaction history by using the blockchain distributed ledger record.

In addition, according to this embodiment, it is possible to enable the owner to directly authenticate the sharer, so that important information is not propagated through the network and the sharer's identification information is collected.

1 is a conceptual diagram schematically showing a system for providing a shared service based on a conventional blockchain.
2 is a conceptual diagram schematically showing a system for providing a sharing service based on a blockchain according to an embodiment.
3 is a diagram illustrating an example in which a sharing service based on a blockchain is provided according to an embodiment.
4 is a block diagram of a system for providing a shared service based on a blockchain according to an embodiment.
5 is a diagram illustrating an example in which an owner terminal recognizes a sharer terminal according to an embodiment.
6 is a flowchart illustrating a process for providing a sharing service based on a blockchain according to an embodiment.

Hereinafter, some embodiments of the present invention will be described in detail through exemplary drawings. It should be noted that in adding reference numerals to the components of each drawing, the same components have the same reference numerals as possible, even if they are displayed on different drawings. In addition, in describing the present invention, when it is determined that detailed descriptions of related well-known structures or functions may obscure the subject matter of the present invention, detailed descriptions thereof will be omitted.

In addition, in describing the components of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are only for distinguishing the component from other components, and the nature, order, or order of the component is not limited by the term. When a component is described as being "connected", "coupled" or "connected" to another component, that component may be directly connected to or connected to the other component, but another component between each component It should be understood that elements may be "connected", "coupled" or "connected".

1 is a conceptual diagram schematically showing a system for providing a shared service based on a conventional blockchain.

Referring to FIG. 1, a conventional sharing service providing system (hereinafter referred to as a'system', 100) may include an owner terminal 101, a sharer terminal 102, and a central server 103. The shared service can be divided into sharing, bartering, and collaborative communities depending on the type of transaction, or it can be divided into services that allow others to own goods belonging to one person or to share goods together. . Ownership can be a concept that includes use and revenue. The sharing service in the present invention may be in a form in which another person owns goods belonging to one person.

For example, the form in which another person owns the goods belonging to one person may be in the form of carpooling his own car or valet parking. The owner has the authority to own the goods, so he can use it freely, but the sharer can use the owner's goods only after receiving the authority for the owner's goods. For example, in the carpool, other carpool participants must have permission to operate the owner's car, and for valet parking, the parking agent must have permission to park the owner's car. Preferably, the present invention can be applied when other carpool participants or parking personnel need to temporarily share the owner's car as a sharer. A detailed example of this will be described later.

The owner terminal 101 may subscribe to the shared service and transmit information on the service usage authority to the central server 103 when a request for using the shared service is received from the sharer terminal 102.

The sharer terminal 102 may also subscribe to the sharing service, request the use of the sharing service from the central server 103, and receive the sharing service when the authority to use the sharing service is recognized by the central server 103.

The central server 103 approves subscription to the sharing service of the owner terminal 101 and the sharer terminal 102, and when there is a request to use the share service from the sharer terminal 102, the sharer terminal 102 permission to use the share service You can decide if there is. Specifically, the central server 103 receives information on the sharing service usage right from the owner terminal 101, and determines the sharing service usage right on the sharing terminal 102 based on the sharing service usage right information. Can. The central server 103 may provide the sharing service to the sharing terminal 102 when the sharing service permission of the sharing terminal 102 is confirmed.

The process of providing the conventional sharing service according to the above is as follows. The owner terminal 101 may subscribe to the shared service through the central server 103 to use the shared service (step S102). The sharer terminal 101 may also subscribe to the sharing service through the central server 103 to use the sharing service (step S104).

The sharer terminal 102 that wants to use the shared service may request the central server 103 to use the shared service (step S106). The owner terminal 101 may transmit information on the authority to use the shared service to the central server 103 (step S108). The owner terminal 101 can transmit information on the authority to use the shared service to the central server 103 only after receiving the request to use the shared service from the sharer terminal 102 through the central server 103. In addition, the owner terminal 101 may transmit information on the authority to use the shared service in advance to the central server 103.

The central server 103 may check the origin of use of the sharer terminal 102 based on the information on the authority to use the sharing service (step S110). If it is determined that the central server 103 has a desire to use the sharer terminal 102, the sharer terminal 102 may provide a personal sharing service (step S112). If it is determined that the central server 103 does not have a usage limit of the sharer terminal 102, the central server 103 may reject the use of the share service of the sharer terminal 102.

The conventional sharing service providing system 100 may be centralized in providing the sharing service. This is because the conventional sharing service providing system 100 can perform the sharing service subscription, authentication, and provision only through the central server 130. This centralized method can have the following problems. The conventional sharing service providing system 100 may consume a lot of computing resources because it is necessary to subscribe and authenticate the sharing service for an unspecified number of users. In addition, the conventional sharing service providing system 100 may have low security. This is because the central server 103 plays a key role in owning all the data necessary for the shared service, and is a target of external intrusion. The only intrusion into the central server 103 is that it can neutralize the entire shared service system.

2 is a conceptual diagram schematically showing a system for providing a sharing service based on a blockchain according to an embodiment.

Referring to FIG. 2, the system 200 for providing a shared service according to an embodiment of the present invention may include an owner terminal 110, a sharer terminal 120, a share service server 130, and a block chain 210. have.

The owner terminal 110 may receive sharer information from the sharer terminal 120 and request the blockchain 210 to delegate the authority to use the sharing service.

The sharer terminal 120 may request the use of the sharing service from the blockchain 210 and use the sharing service when the authority to use the sharing service is confirmed by the blockchain 210.

When the block chain 210 is requested to delegate the authority to use the shared service from the owner terminal 110 and requested to use the shared service from the sharer terminal 120, the blockchain 210 may determine whether to use the shared service to the sharer.

The sharing service server 130 may provide the sharing service to the sharer terminal 120 by executing the sharing service when the permission to use the sharing service is confirmed by the blockchain 210.

The process of providing the sharing service according to the present invention as described above is as follows. The sharer terminal 120 may transmit sharer information to the owner terminal 110 (step S202). The owner terminal 110 may store the sharer information and use it when requesting the blockchain 210 to delegate the authority to use the sharing service.

The owner terminal 110 may request delegation of the authority to use the shared service to the blockchain 210 (step S204). The request may be based on the sharer information. For example, the sharer information includes a sharer electronic wallet address, and the request can make the sharer electronic wallet address a destination.

The sharer terminal 120 may request the blockchain 210 to use a shared service (step S206). Blockchain 210 can verify the usage rights of sharer terminal 120 among the internal nodes and determine whether to provide a sharing service.

The block chain 210 may check the authority to use the sharing service of the sharer terminal 120 (step S208).

The shared service server 130 can execute the shared service. When the blockchain 210 confirms the permission of the sharer terminal 120 to use the shared service, the blockchain 210 may request the shared service server 130 to execute the shared service. The shared service server 130 may execute the shared service according to the request (step S210).

While the conventional sharing service providing system 100 provides a centralized sharing service, the sharing service providing system 200 of the present invention can provide a decentralized sharing service.

First, the sharing service providing system 200 can distribute the role of the central server 103 by causing the blockchain 210 to perform the sharing service authentication. In the conventional sharing service providing system 100, the central server 103, which is a third party acting as an intermediary, confirms the use rights of the sharer, but in the sharing service providing system 200, the blockchain 210 can perform the function. have.

Second, the sharing service providing system 200 can close the direct transaction service by increasing the individual contact between the owner terminal 110 and the sharer terminal 120. That is, the owner terminal 110 and the sharer terminal 120 can directly and exchange the sharer information necessary for authentication of the share service on the blockchain 210, not through a third party. Direct transactions between the parties may contribute to the execution of the shared service authentication of the blockchain 210.

3 is a diagram illustrating an example in which a sharing service based on a blockchain is provided according to an embodiment.

Referring to FIG. 3, an example of a case in which the sharing service providing system 200 of the present invention is applied is illustrated. One example of the sharing service may be a valet parking service.

The owner 10 can arrive at the restaurant 1 using the vehicle 3. The parking agent 20 may wait at the counter 2 and interview the owner 10 when the vehicle 3 of the owner 10 arrives.

The parking agent 20 must have the authority to use the vehicle 3 because the vehicle 3 must be temporarily operated instead of the owner 10. To this end, the parking agent 20 must be authorized by the blockchain 210.

The owner 10 can recognize the sharer information of the parking agent 20. The recognition of the sharer information may be executed by the owner 10 operating the owner terminal 110 and the sharer parking agent 20 operating the sharer terminal 120.

The owner 10 may request permission of the parking agent 20 to the blockchain 210. When the blockchain 210 authenticates that the parking agent 20 has authority, the owner 10 entrusts the vehicle 3 to the parking agent 20 and enters the restaurant 1, and the parking agent 20 is a vehicle ( 3) You can park. In addition, the parking agent 20 may be issued an electronic key for the vehicle 3 after authentication. The owner terminal 110 of the owner 10 and the sharer terminal 120 of the parking agent 20 may include a vehicle sharing service application 501, and the parking agent 20 may use the vehicle sharing service application 501. By using the electronic key, it is possible to board the vehicle 3.

4 is a block diagram of a system for providing a shared service based on a blockchain according to an embodiment.

Referring to FIG. 4, the sharing service providing system 200 may include an owner terminal 110, a sharer terminal 120, a share service server 130, and a blockchain 210.

If the owner 10 wants to share his/her own property with the sharer 20, the owner 10 and the sharer 20 can use the sharing service according to the present invention. All owners 10 need to subscribe to the sharing service in advance.

The owner terminal 110 may subscribe to the sharing service through the sharing service server 130 in advance. Next, the owner terminal 110 may receive and execute the vehicle sharing service application 501. When the owner terminal 110 executes the vehicle sharing service application 501, an electronic wallet and an electronic wallet address may be assigned. For example, if the owner 10 installs the vehicle sharing service application 501, the owner terminal 110 may create an electronic wallet. The electronic wallet includes a unique address, hereinafter, the address is referred to as an electronic wallet address. The electronic wallet created by the owner terminal 110 is the owner electronic wallet, and the owner terminal 110 can transmit the owner electronic wallet address to the shared service server 130.

The sharer terminal 120 may also receive and execute the vehicle sharing service application 501. When the sharer terminal 120 executes the vehicle sharing service application 501, an electronic wallet and an electronic wallet address may be assigned. For example, when the sharer 20 installs the vehicle sharing service application 501, the sharer terminal 120 may generate an electronic wallet. The electronic wallet generated by the sharer terminal 120 is the sharer electronic wallet and the sharer terminal 120 can transmit the sharer electronic wallet address to the share service server 130.

The sharing service server 130 may receive the owner electronic wallet address from the owner terminal 110 and request the blockchain 210 to send a coin to the owner electronic wallet address. The coin may be required for the owner 10 to send a transaction on the blockchain 210. The coin may be a small amount instead of a large amount. This is because it is the existence of the coin, not the amount of the coin, that is necessary in the transaction transmission on the blockchain 210.

Blockchain 210 may be a collection of a plurality of nodes 210-1 to 210-6 connected by a network. Each node 210-1 to 210-6 may record a transaction or transaction made in the network. Coins can be essentially involved in the transaction or the transfer of the transaction. Instead of a single subject acting as a central or intermediary recording a transaction, in the blockchain 210, all nodes 210-1 to 210-6 record the same transaction. A record for one transaction may mean one block. Since a record for a current transaction is generated based on a record for a previous transaction, the current block can be linked to the previous block. The sun where blocks are connected to each other is reminiscent of chained blocks. Blockchain 210 may refer to this type of network or a set of networked nodes.

The blockchain 210 includes the owner terminal 110, the sharer terminal 120, or the shared service server 130 itself as a node, or the owner terminal 110, the sharer terminal 120, or the shared service server 130 and the network. A separate device connected by may be included as a node. The node for the shared service server 130 or the shared service server 130 may generate a transaction for sending a coin to the owner electronic wallet address and transmit it to the blockchain 210. Blockchain 210 may generate a record for the transaction, that is, a block for the transaction.

The owner terminal 110 can obtain a sharer electronic wallet address from the sharer terminal 120. The owner terminal 110 can obtain the sharer's electronic wallet address through wired or wireless communication. Preferably, the owner terminal 110 can recognize a code indicating the sharer's electronic wallet address. For example, if the owner 10 faces the sharer 20 and contacts the owner terminal 110 within the communication range with the sharer terminal 120, the owner terminal 110 receives the image code displayed on the sharer terminal 120. Can be recognized. The recognition may include recognizing a quick response code (QR code).

The owner terminal 110 may request the blockchain 210 to execute the first smart contract that delegates the authority to use the sharing service to the sharer terminal 120. Smart contracts are automation contracts that are executed only when certain conditions are met. The owner terminal 110 may transmit the first transaction including the execution condition of the first smart contract that delegates the authority to use the shared service to the blockchain 210. For example, the first smart contract may include content for permitting the driving of the vehicle 3 to the sharer terminal 120 owned by the parking agent 20.

In addition, the owner terminal 110 may request the blockchain 210 to transmit the coin received from the sharing service server 130 to the sharer terminal 120. The coin can be used when the sharer terminal 120 requests the blockchain 210 to execute another smart contract. The coin may be transmitted to the sharer terminal 120 separately from the first transaction or included in the first transaction. Accordingly, the first transaction may include information for transmitting the coin received from the shared service server 130. In this way, the blockchain 210 can execute the first smart contract and delegate the authority to use the shared service. The result of the first transaction and the execution of the first smart contract in the blockchain 210 may be shared between each node 210-1 to 210-6 and formed into a block.

Meanwhile, the sharer terminal 120 may request the blockchain 210 to execute a second smart contract that provides a share service to the sharer terminal 120. The sharer terminal 120 may transmit the second transaction including the execution condition of the second smart contract indicating the detailed use of the shared service to the blockchain 210. For example, the second smart contract may include contents related to the control of the vehicle 3, and specifically, allow the parking agent 20 to open or lock the door of the vehicle 3 and start the vehicle 3 It can include turning on or off.

Also, the sharer terminal 120 may use the coin received from the owner terminal 110 (the coin received from the shared service server 130 via the owner terminal 110) to execute the second smart contract. . The coin may be transmitted to the owner terminal 110 separately from the second transaction or included in the second transaction. Blockchain 210 may execute the second smart contract using the coin and allow use of a sharing service for sharer terminal 120. The result of the execution of the second transaction and the second smart contract in the blockchain 210 may be shared between each node 210-1 to 210-6 and formed into a block.

The block chain 210 checks whether the sharer terminal 120 has authority for the second smart contract, and when checking the authority of the sharer terminal, provides a sharing service to the sharer terminal 120. 130). The sharing service server 130 may execute the sharing service according to the request. For example, the sharing service server 130 may control the vehicle 3 according to the contents included in the second smart contract, and if the second smart contract opens the door of the vehicle 3, the sharing service The server 130 may remotely control the vehicle 3 so that the door of the vehicle 3 is opened.

In order to confirm the authority of the sharer terminal 120 for the second smart contract, the block chain 210 may verify the second transaction through the sharer electronic wallet address. All transactions, including the first and second transactions, can be electronically signed with the sender's private key. The second transaction can be electronically signed with the sharer's private key. The blockchain 210 may verify the second electronically signed transaction through the sharer's public wallet address, which is the sharer's public key. The sharer electronic wallet address may be an address for an electronic wallet generated when the sharer terminal 120 subscribes to the sharing service.

When the blockchain 210 confirms the authority to use the sharing service of the sharer terminal 120, the blockchain 210 may request the share service server 130 to provide the share service to the sharer terminal 120 according to the second smart contract. Any node of the blockchain 210 may request the sharing service server 130 to provide a sharing service to the sharer terminal 120.

When the sharing service server 130 is requested to provide a sharing service for the sharer terminal 120 from the blockchain 210, the sharing service server 130 may provide the sharer terminal 120 with the share service. The sharing service server 130 may execute the sharing service according to the request. For example, the sharing service server 130 may control the vehicle 3 according to the contents included in the second smart contract. The sharer 20 can use a share service.

Meanwhile, the block chain 210 is composed of a plurality of nodes 210-1 to 210-6, and the plurality of nodes 210-1 to 210-6 actually includes all or part of all terminals capable of wired and wireless communication with the outside. can do. The plurality of nodes 210-1 to 210-6 may include a tablet, a desktop, a smart phone, a server, a notebook, and the like.

If any of the above terminals can process the hash operation and record the transaction, it can participate in the blockchain 210 as a node 210-1 to 210-6 through the network.

5 is a diagram illustrating an example in which an owner terminal recognizes a sharer terminal according to an embodiment.

Referring to FIG. 5, an example in which the owner terminal 110 obtains the sharer electronic wallet address from the sharer terminal 120 is illustrated. When the owner 10 grants the sharer 20 permission to use the sharing service through the sharing service providing system 200 according to the present invention, the owner 10 sends the transaction executing the smart contract to the blockchain 210. I can send it. When sending a transaction, the owner 10 can also send a coin to the sharer's electronic wallet address. The sharer electronic wallet address needs to be included in the transaction.

The owner terminal 110 may obtain the sharer's electronic wallet address through QR code 502 recognition. For example, the owner terminal 110 may run the sharing service application 501 and scan the QR code 502 displayed on the sharer terminal 120. The QR code 502 includes information about the sharer electronic wallet address, and the owner terminal 110 can obtain the sharer electronic wallet address from the QR code 502.

6 is a flowchart illustrating a process for providing a sharing service based on a blockchain according to an embodiment.

Referring to FIG. 6, a flow of operation of the sharing service providing system 200 according to the present invention is illustrated.

The owner terminal 110 may subscribe to the shared service through the shared service server 130 (step S602). Next, the owner terminal 110 and the sharer terminal 120 may download and drive the vehicle sharing service application 501. When the vehicle sharing service application 501 is executed, the owner terminal 110 may generate an owner electronic wallet and obtain an owner private key and an owner public key. The owner public key may include an owner electronic wallet address. When the vehicle sharing service application 501 is executed, the sharer terminal 120 may also generate a sharer electronic wallet and obtain a sharer private key and sharer public key. The sharer public key may include a sharer electronic wallet address.

The owner terminal 110 may transmit the owner electronic wallet address to the shared service server 130 (step S604).

The sharing service server 130 may request the blockchain 210 to transmit a small amount of coins to the owner's electronic wallet address (step S606). That is, the shared service server 130 may generate a transaction that transmits a small amount of coins to the owner's electronic wallet address. The blockchain 210 may transmit the small amount of coins and record the result and form it into a block (step S608).

The owner terminal 110 may obtain a sharer electronic wallet address from the sharer terminal 120 (step S610). The owner terminal 110 may obtain a sharer electronic wallet address included in the QR code by scanning the QR code from the sharer terminal 120.

The owner terminal 110 may request the blockchain 210 to send a coin from the owner electronic wallet address to the sharer electronic wallet address (step S612). That is, the owner terminal 110 may generate a transaction that transmits a coin from the owner electronic wallet address to the sharer electronic wallet address. Blockchain 210 may transmit the coin, record the result, and form it into a block (step S614).

The owner terminal 110 may request the blockchain 210 to execute the first smart contract that delegates permission to use the sharing service to the sharer terminal 120 (step S616). The owner terminal 110 may transmit the first transaction for the execution of the first smart contract to the blockchain 210.

Blockchain 210 may execute the first smart contract (step S618). Blockchain 210 may record the execution result of the first smart contract and form it into a block.

The sharer terminal 120 may request execution of the second smart contract that provides a sharing service to the sharer terminal 120 to the blockchain 210 (step S620). The sharer terminal 120 may transmit the second transaction for the execution of the second smart contract to the blockchain 210. For example, the second smart contract may include contents related to the control of the vehicle 3, and specifically, allow the parking agent 20 to open or lock the door of the vehicle 3 and start the vehicle 3 It can include turning on or off.

Blockchain 210 may execute the second smart contract (step S622). Blockchain 210 may record the execution result of the second smart contract and form it into a block.

The blockchain 210 may check whether the sharer terminal 120 has authority for the second smart contract (step S624). Blockchain 210 may verify a transaction electronically signed with the sharer's private key with the sharer's electronic wallet address and determine whether to provide a sharing service.

The block chain 210 transmits a call signal for the shared service to the shared service server 130 when the sharer terminal 120 checks the authority to use the shared service, and provides the shared service for the sharer terminal 120 to the shared service server 130 ) (Step S626).

The shared service server 130 may provide a shared service to the corresponding sharer terminal 120 upon receiving a signal for a shared service call from the blockchain 210 (step S628). Preferably, the shared service server 130 may control the vehicle 3 according to the contents included in the second smart contract. For example, if the second smart contract is to open the door of the vehicle 3, the shared service server 130 may remotely control the vehicle 3 so that the door of the vehicle 3 is opened.

The terms "include", "compose" or "have" as described above mean that the corresponding component can be inherent unless otherwise stated, and do not exclude other components. It should be interpreted that it may further include other components. All terms, including technical or scientific terms, have the same meaning as generally understood by a person skilled in the art to which the present invention pertains, unless otherwise defined. Commonly used terms, such as predefined terms, should be interpreted as being consistent with the meaning in the context of the related art, and are not to be interpreted as ideal or excessively formal meanings unless explicitly defined in the present invention.

The above description is merely illustrative of the technical spirit of the present invention, and those of ordinary skill in the art to which the present invention pertains will be capable of various modifications and variations without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention, but to explain, and the scope of the technical spirit of the present invention is not limited by these embodiments. The scope of protection of the present invention should be interpreted by the claims below, and all technical spirits within the scope equivalent thereto should be interpreted as being included in the scope of the present invention.

Claims (10)

Sharer terminal;
An owner terminal obtaining a sharer electronic wallet address from the sharer terminal; And
Includes a shared service server that receives an owner electronic wallet address from an owner terminal and requests the blockchain to send a coin to the owner electronic wallet address.
The owner terminal requests the blockchain to transfer a coin from the owner's electronic wallet address to the sharer's electronic wallet address and to execute a first smart contract that delegates permission to use the sharing service to the sharer terminal,
The sharer terminal requests the blockchain to execute a second smart contract that executes a sharing service for the sharer terminal,
The blockchain checks whether the sharer terminal has the authority to the second smart contract, and when it is determined that the sharer terminal has authority to the second smart contract, of the sharing service to the sharer terminal. Blockchain-based shared service providing system that requests execution to the shared service server. According to claim 1,
The owner terminal requests the shared service server to join the shared service, and when the shared service application is executed, the owner electronic wallet, the owner private key, and the owner public key are generated,
The shared service server, to approve the subscription of the owner terminal
Blockchain based sharing service provision system. According to claim 2,
The sharer terminal generates the sharer electronic wallet, sharer private key, and sharer public key when the sharer service application is executed
Blockchain based sharing service provision system. According to claim 3,
The sharer terminal transmits a transaction executing the second smart contract to the blockchain,
The transaction is signed with the private key of the sharer
Blockchain based sharing service provision system. According to claim 4,
The blockchain verifies the second transaction signed with the sharer private key with the sharer public key.
Blockchain based sharing service provision system. The method of claim 5,
The sharer public key includes the sharer electronic wallet address
Blockchain based sharing service provision system. According to claim 1,
The owner terminal recognizes the image code displayed on the sharer terminal.
Blockchain based sharing service provision system. A process in which the shared service server receives the owner electronic wallet address from the owner terminal;
A process in which the shared service server requests a blockchain to send a coin to the owner's electronic wallet address;
The owner terminal obtaining a sharer electronic wallet address from the sharer terminal;
Requesting to the blockchain that the owner terminal sends a coin from the owner electronic wallet address to the sharer electronic wallet address and executes a first smart contract that delegates permission to use the sharing service to the sharer terminal;
Requesting the blockchain to execute a second smart contract for the sharer terminal to execute a sharing service for the sharer terminal;
A process in which the blockchain checks whether the sharer terminal is authorized to the second smart contract; And
If the blockchain confirms that the sharer terminal has authority for the second smart contract, requesting the share service server to execute the share service for the sharer terminal;
Blockchain-based sharing service providing method comprising a. The method of claim 8,
A process in which the owner terminal requests a shared service subscription from the shared service server and the shared service server approves the owner terminal subscription;
When the owner terminal executes the shared service application, the owner terminal generating the owner electronic wallet, the owner private key, and the owner public key; And
Including when the sharer terminal executes the share service application, the sharer terminal generates the sharer electronic wallet, sharer private key, and sharer public key;
Method of providing blockchain-based sharing service. The method of claim 9,
The step of requesting the blockchain to execute the second smart contract includes the step of transmitting, by the sharer terminal, the transaction executing the second smart contract to the blockchain,
The transaction is signed with the sharer private key and verified with the sharer public key,
The sharer public key includes the sharer electronic wallet address
Method of providing blockchain-based sharing service.

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