KR20220139107A - Blockchain did based parking area reservation method and apparatus - Google Patents

Abstract

One aspect of the present invention provides a method for providing a parking reservation service by using a blockchain-based decentralized ID (DID) in a parking reservation platform providing apparatus. The method comprises: a step of providing information associated with a parking space by using a parking reservation platform, wherein the information is provided by uploading the information to the parking reservation platform based on a DID-based first verifiable credential (VC) of a parking space renter by the parking space renter; a step of receiving a reservation request for the parking space from a user terminal, wherein a verifiable presentation (VP) of a user of the user terminal is received when the reservation request is made, the verifiable presentation (VP) includes a second verifiable credential (VC) of the user, and the second verifiable credential (VC) is issued by disclosing a DID of the user in the blockchain; a step of performing a payment for the reserved parking space in response to the reservation request for the parking space; a step of recording transaction information associated with the reservation of the parking space in the blockchain, wherein the transaction information includes information on the first verifiable credential (VC) and the second verifiable credential (VC); and a step of issuing an electronic voucher associated with a reservation purchase of the parking space.

Description

BLOCKCHAIN DID BASED PARKING AREA RESERVATION METHOD AND APPARATUS

The present invention relates to a parking lot reservation system, and more particularly, to an online-based parking reservation platform service.

Recently, as the use of rapidly developed smart terminals has become common, a reservation for parking is made online using the wireless Internet and wireless communication technology of the terminal, and the purchased ticket is an electronic ticket in the form of an RFID card or barcode. issued to the terminal. The issued electronic ticket can be used as an admission ticket in the parking lot.

However, the conventional parking reservation and electronic ticket issuance method of the above type has a problem in that it cannot be freed from security issues because there is a possibility that other users can use it in the field by using the electronic ticket purchased by another person. In addition, when making a parking reservation with a user's smart terminal, there is a problem in that personal information is not properly protected because the parking reservation is made while providing all of the user's personal information. Additionally, there is also a problem in that it is impossible to check whether the purchased e-ticket is a valid ticket when a defect occurs in the central server or the like.

An object of an aspect of the present invention for solving the above problems is to provide a DID-based parking reservation method and system, in which a parking reservation is made based on a DID (Decentralized ID) and an electronic ticket is issued accordingly. .

An object according to another aspect of the present invention is a blockchain-based parking reservation method that enables issuance and verification of electronic ticket related to parking reservation using blockchain technology, which is a technology that enables distributed storage and mutual verification of information, and to provide a system.

A method of providing a parking reservation service using a blockchain-based decentralized ID (DID) in a parking reservation platform providing apparatus according to an aspect of the present invention for achieving the above object is related to a parking space Providing information using a parking reservation platform (the information is provided by uploading the information to the parking reservation platform by the parking space lender based on the DID-based first identity authentication (VC: Verifiable Credential) of the parking space renter) ), receiving a reservation request for the parking space from a user terminal (receiving a Verifiable Presentation (VP) of the user of the user terminal when the reservation request is made, the identification expression (VP) of the user Including a second identity authentication (VC: Verifiable Credential), the second identity authentication (VC) is issued by disclosing the user's DID to the block chain), in response to a reservation request for the parking space, Proceeding with payment for the reserved parking space, recording transaction information related to the reservation of the parking space in a blockchain (the transaction information is the first identity authentication (VC) and the second 2 including information about identity authentication (VC)) and issuing an electronic ticket related to the reservation purchase of the parking space.

The identification expression (VP) may include vehicle number information associated with the user.

The transaction information may further include payment details according to parking space reservation and parking reservation vehicle number, reserved parking space and time information.

The method may further include, in response to the payment for the reserved parking space being completed, notifying the terminal of the parking space lender that the reservation for the parking space has been completed.

The electronic use right may be used in correspondence with the second identity authentication (VC).

The electronic ticket is used in connection with the vehicle number recognition system associated with the parking space lender, and the electronic ticket can be used by comparing the number of the vehicle reserved for parking related to the electronic ticket and the vehicle number of the vehicle number recognition system. have.

The information related to the parking space, which is provided through the parking reservation platform, includes an identification number of a rentalable parking space and information on available parking time, and the reservation request includes a parking space identification number to be reserved and information about the expected parking time. can do.

The method may further include, in response to receiving the reservation request, inquiring whether a reservation is possible with a terminal of the parking space rental company and granting the reservation request based on a response to the query.

The method may further include recording information related to refund of the electronic ticket or additional payment for parking usage time exceeding the parking reservation time of the electronic ticket in the block chain.

In relation to the reservation of the parking space, a list of users with a history of illegal use is managed, but the list may be recorded in a block chain.

The electronic pass may be issued in the form of at least one of an RFID tag, a barcode, and a QR code.

The second identity authentication (VC) may be issued by matching the user's DID with information about the vehicle related to the user and being authenticated.

In accordance with an aspect of the present invention for achieving the above object, an apparatus for providing a parking reservation service using a blockchain-based decentralized identifier (DID) is, by using a parking reservation platform, information related to a parking space. Provide, receive a reservation request for the parking space from the user terminal, proceed with payment for the reserved parking space in response to the reservation request for the parking space, transaction (transaction) information related to the reservation of the parking space and a processor for issuing the electronic usage ticket related to the reservation of the parking space and a memory for storing instructions related to the operation of the processor, the information related to the parking space is provided by the parking space lender. is provided by recording the DID-based first identity authentication (VC: Verifiable Credential) of the parking space renter in the block chain and accessing the parking reservation platform, and when the reservation request is made, the user's identity authentication expression ( VP: Verifiable Presentation), the identity authentication expression (VP) includes a second verifiable credential (VC) of the user, and the second identity authentication (VC) receives the user's DID into the block It is issued by publishing to the chain, and the transaction information may include information about the first identity authentication (VC) and the second identity authentication (VC).

According to another aspect of the present invention for achieving the above object, a user terminal device for reserving a parking space using a blockchain-based decentralized identifier (DID) includes a user's private key and A key store that stores a key pair including a public key, generates Decentralized IDentifiers (DID) of the user, and generates a DID document using the public key of the key pair stored in the key store A DID document module, a VC storage for receiving and storing DID-based Verifiable Credentials (VC) information, a Verifiable Presentation (VP) is generated using the identity authentication (VC) information, and the generated A processor that performs a reservation for a parking space provided by a parking reservation platform service providing server using an identity authentication expression (VP) and receives an electronic ticket corresponding thereto, and a memory storing instructions related to the operation of the processor can do.

The processor proceeds with a payment procedure to purchase the electronic ticket, and as the payment procedure is completed, the electronic ticket is issued from the parking reservation platform service providing server, and the issued electronic ticket is an electronic ticket in the memory. You can keep them separately in your wallet.

The apparatus may further include an authentication module for authenticating that the user is a user of the user terminal, wherein the electronic use right can be used by authenticating an identity authentication (VC) stored in the VC storage and an individual user of the user terminal.

According to another aspect of the present invention for achieving the above object, an apparatus for checking an electronic ticket related to a parking reservation issued based on a blockchain-based decentralized identifier (DID) is an electronic ticket of a user terminal. extracts the information related to the electronic right from the blockchain based on a code related to A processor for verifying the identity authentication authority of (VC) and the user of the user terminal device, verifying the purchase history of the electronic use ticket among the extracted information, and outputting the verification result, and instructions related to the operation of the processor a memory for storing, wherein the identity authentication (VC) is issued by disclosing the user's DID to the blockchain It can be verified whether it corresponds to the authentication (VC).

The processor may obtain the vehicle number information from the vehicle number recognition device, compare the obtained vehicle number with the parking reservation vehicle number related to the electronic pass, and output a verification result.

According to another aspect of the present invention for achieving the above object, a method of providing a parking service using a blockchain-based decentralized ID (DID) in a parking platform service providing device is a method of renting a parking space. Obtaining first information related to the start of use of the parking space of the first vehicle from the first terminal of the parking space lender, using information on the block chain for the first identity authentication (VC) of the user related to the first vehicle to verify (the first identity authentication (VC) is issued by disclosing the user's DID to the block chain), the second information related to the completion of the use of the parking space of the first vehicle from the first terminal obtaining, calculating a parking space usage fee by using the first information and the second information, performing payment of the calculated parking space usage fee in conjunction with the user's second terminal, and the It may include recording transaction information related to the use of the parking space in the blockchain.

According to the blockchain DID-based parking reservation method and system of the present invention, there is an advantage that verification can be efficiently performed so that the genuine user can use the reserved parking space while minimizing the exposure of personal information during parking reservation. This has the effect of strengthening security.

In addition, since data related to parking reservations and transactions are distributed and stored under the same conditions among nodes participating in the blockchain network, it has the effect of securing data reliability between companies.

1 is a conceptual diagram schematically showing a system for performing a blockchain DID-based parking reservation method according to an embodiment of the present invention;
2 is a flowchart showing a parking lot user authentication process using DID;
3 is a flowchart showing a parking lot rental authentication process using DID;
4 is a detailed flowchart showing the process from block chain-based parking lot reservation and parking lot entry in more detail;
5 is a flowchart showing the vehicle entry and exit verification process between the vehicle number recognition device and the parking space rental terminal;
6 is a flowchart showing a process of executing a blockchain DID-based parking reservation method according to an embodiment of the present invention by a deferred payment system;
7 is a block diagram showing the configuration of an apparatus for executing a block chain DID-based e-ticket reservation method according to an embodiment of the present invention.

Since the present invention can have various changes and can have various embodiments, specific embodiments are illustrated in the drawings and described in detail.

However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention.

Terms such as first, second, etc. may be used to describe various elements, but the elements should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, a first component may be referred to as a second component, and similarly, a second component may also be referred to as a first component. and/or includes a combination of a plurality of related listed items or any of a plurality of related listed items.

When a component is referred to as being “connected” or “connected” to another component, it may be directly connected or connected to the other component, but it is understood that other components may exist in between. it should be On the other hand, when it is said that a certain element is "directly connected" or "directly connected" to another element, it should be understood that the other element does not exist in the middle.

The terms used in the present application are only used to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present application, terms such as “comprise” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features It is to be understood that this does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings. In describing the present invention, in order to facilitate the overall understanding, the same reference numerals are used for the same components in the drawings, and duplicate descriptions of the same components are omitted.

1 is a conceptual diagram schematically illustrating a system for performing a blockchain DID-based parking reservation method according to an embodiment of the present invention. As shown in FIG. 1 , the blockchain DID-based parking reservation system of the present invention may include a parking space lender 110 , a parking reservation platform 120 , and a parking space user 130 .

In this specification, even if it is expressed as the parking space lender 110 and the parking space user 130, in exchanging information between them, the terminal (computing) related to the parking space rental 110 and the parking space user 130 respectively. device), it will be apparent to those skilled in the art that the present invention pertains.

Referring to FIG. 1 , a parking space lender 110 is a company that rents a parking space, and may be an owner of a parking space or a company that rents a parking space on behalf of the owner. The parking space lender 110 provides the parking reservation platform 120 with information about the location, price, and usage conditions of the parking space using its own terminal. The above information is recorded in the blockchain 125 together with the DID-based identity authentication (VC) information of the lender 110 .

The parking reservation platform 120 is installed in the form of an application on the terminal of the parking space lender 110 and/or the terminal of the parking space user 130 or provided when accessing a specific web page on the Internet. . This may be provided through a server or server system that manages and controls large amounts of data. The parking reservation platform 120 obtains information about available parking spaces and available parking times, locations, and conditions of use from them in connection with a plurality of parking space lenders 110, and uses them through the above-described application or web page. It is provided to the terminal of 130. In this case, a fee related to the use of the platform may be added. However, this is not essential.

The parking reservation platform 120 separates and processes information to be managed by the block chain 125 and information not to be managed. That is, things to be processed by the blockchain 125 are managed in the blockchain layer, and those that are not are managed in the non-blockchain layer. In the blockchain layer, information such as identification authentication information (VC: Verifiable Credential) (including DID document information) and payment information of the parking space lender 110 and the parking space user 130 is processed, and information related to the remaining parking spaces (Information related to parking space location, time, cost, etc.) can be processed in the non-blockchain layer.

In particular, the parking reservation and payment according to an embodiment of the present invention, and the use of the reserved parking space, through the DID-based identity authentication information (VC) of the parking space lender 110 and the parking space user 130 To be made, the parking reservation platform 120 operates based on this.

The parking space user 130 pays the price after making a reservation after viewing the available parking space announced by the parking reservation platform 120 . This may be done through the user terminal. At this time, each driver authenticates himself using DID-based identity authentication (VC). In addition, the payment details are recorded in the block chain 125 .

The parking reservation platform 120 confirms the fact that the payment has been made, and issues an electronic ticket to the user (more precisely, the user terminal). The electronic pass may be issued in the form of an RFID tag, a barcode, or a QR code. At this time, the transaction details that occur are all recorded on the block chain 125 . The recorded information includes identity authentication (VC) information of the parking space user 130, identity authentication (VC) information of the parking space rental 110, the vehicle number of the vehicle to be parked, and other payment information.

When the reservation and payment are completed, the parking space user 120 uses the parking lot with the reserved vehicle. When a user drives a vehicle to enter/exit a parking lot, the electronic ticket can be presented. At this time, the electronic ticket and identity authentication (VC) (which may be stored in the user terminal) are presented together and verified as the person making the reservation by comparing it with the information on the block chain 125 . In this way, it is possible to prevent illegal use by others. Since the record information on the block chain 125 may include a vehicle number, it is linked with the vehicle number recognition system installed in the parking lot and the entry/exit management/parking fee payment system using the same to recognize the vehicle number, By comparing the vehicle and the vehicle number on the block chain 125, it is confirmed whether the vehicle is entered according to an appropriate reservation.

The parking reservation platform 120 pays a portion of the parking fee to the parking space renter 110 by settlement of the parking fee and the refunded amount. The parking reservation platform 120 may collect a predetermined fee in this process.

Additionally, the transaction details of the parking space user 120 recorded on the block chain 125 can be utilized for penalty charge and usage regulation in case of illegal use of the parking lot. Examples of illegal use may include overtime, non-use after reservation, damage to facilities, and induction of fines/fines. In this case, it may take measures such as collecting a penalty after the use of payment information such as credit card information remaining in the transaction history, and may impose regulations to temporarily or permanently prohibit the same user from using the reservation service. Such action details may be recorded as part of the transaction details on the block chain 125 .

That is, the parking reservation platform 120 may record the identity authentication information (VC), the parking lot location, the fee, and the usage condition information of the parking space lender 110 on the block chain system 125 . In addition, as information related to the parking space user 130, user identity authentication information (VC), usage history, payment information, payment history, and illegal use history (which can be managed in the form of a black list) may be recording. The block chain system 125 is accessible through the block chain module of the terminal of the parking space lender 110 and the terminal of the parking space user 130, and these devices may have permission to access the block chain node. have. Through this, the block chain 125 may have a function of creating, reading, and writing information.

2 is a flowchart illustrating a parking lot user authentication process using DID.

Referring to FIG. 2 , for DID document registration, the user terminals of the identity authentication authority 210 and the parking space user 220 each have a PKI (Public Key Infrastructure)-based key pair (private key and public key). (including the public key), the private key is stored in the electronic wallet of the device, the DID document is generated using the public key, and then stored in the block chain 240 . Basically, a DID document contains information related to an identity subject, how this information can be verified, a set of DID's public keys, a set of authentication protocols, and a set of service endpoints that can communicate or interact with the entity. may include One of the advantages of DID is that it can be managed so as not to include information that the individual decides to be unnecessary or does not want to be exposed because DID is created and managed by the individual. The DID document stored in the block chain 240 may be shared with the related companies and related organizations described above through the block chain network. The blockchain 240 stores a Revocation Registry containing information for revocation of DID documents and identity proofs.

According to an embodiment of the present invention, vehicle-related information may be included in the DID document for more reliable and secure parking space reservation. Through this, when identity authentication, information related to the individual identity subject and vehicle information corresponding thereto are included, so that the information can be processed by matching the information with personal identity information not only for identity authentication but also for future parking reservations. However, when using the identity authentication and parking reservation service, it should be interpreted that the matching of vehicle information as well as the individual as well as the vehicle information and the verification procedure are not necessarily necessary, and may be selectively processed in such a form.

After the identity authentication authority 210 and the parking space user 220 register the DID document in the blockchain, respectively, the parking space user 220 is issued an identity authentication (VC) from the identity authentication institution 210 . To this end, the parking space user 220 transmits an identity authentication request to the identity authentication authority 210 . The user's personal information may be included in the identity authentication request. Personal information is information that can confirm a user's identity, and may include information such as social security number, phone number, address, and name. Additionally, according to an embodiment of the present invention, as information related to personal information and/or information related to a vehicle to be used in a parking space, parking vehicle related information such as driver's license number, vehicle number, vehicle model, year, vehicle color, etc. information can be provided. Additionally, payment information related to the parking space user 220 (credit card number, related account information, etc.) may also be provided. This may be delivered by executing an application of the user terminal.

The server of the identity authentication authority 210 receiving the request from the user terminal checks whether the user information is correct based on the identity information provided by the user 220 . The identity authentication authority 210 can issue identity authentication information (VC) by basically checking only information related to personal information, but for more enhanced vehicle-related security, driver's license-related information and vehicle information are combined with personal information. After matching and confirming that the vehicle related to the identity is correct, identity authentication information (VC) can be issued. At this time, the identity authentication information VC is digitally signed using the private key of the identity authentication authority 210 and transmitted.

The parking space user 220 who has received the identity authentication (VC) generates an identity authentication expression (VP: Verifiable Presentation) (which may be referred to as a 'submission document') for online parking space reservation, and uses it to park Subscribe to the reservation platform 230 . Then, log in to the platform 230 through the registered ID and password, and reserve a parking space. In this case, the submission document VP may include at least a part of the identity authentication information VC and a digital signature. The digital signature uses the private key of the user's DID. A submission (VP) (which may be referred to as an 'identity representation') represents one or more VC data and is packaged in such a way that ownership of the data can be verified. Multiple identity authentication (VC) may be included. Direct provision of identity authentication (VC) can also be a kind of identity authentication expression (VP). A data format derived from VC that can be cryptographically verifiable but does not contain VC can also be a VP of Identity. The identity authentication representation (VP) is preferably generated in a form that discloses at least some of the characteristics of the identity authentication (VC) or satisfies a derived predicate requested by the verifier.

On the other hand, according to an embodiment of the present invention, the identity authentication expression (VP) as described above includes the identity authentication information (VC) issued by the identity authentication authority (210). As described above, the identity authentication expression (VP) is signed and delivered using the user DID's private key. Also, additionally, the identity authentication expression (VP) may include vehicle information of the vehicle to be reserved. The vehicle information includes at least a portion of information that can specify a vehicle, such as a vehicle number, a vehicle model, and a year. If the identity authentication institution 210 matches and confirms personal information up to the vehicle information and then issues the identity authentication (VC), the vehicle information as above when reserving a parking space with the vehicle used for the identity authentication (VC) may not be separately included in the identity authentication expression (VP).

The provider of the parking reservation platform 230 verifies whether the user himself is correct based on the identity information (which may also include vehicle information) included in the submission document VP provided from the user terminal 220 . At this time, the digital signature values included therein are verified. Here, the digital signature value may include a digital signature of the user 220 and a digital signature of the identity authentication authority 210 . For this, the corresponding DID document is fetched from the blockchain 240 . Since the DID document includes the public key of the user 220 and the public key of the identity authentication authority 210, signature values can be verified using these public keys. In addition, in order to check whether the identity authentication (VC) included in the submitted document (VP) has already been revoked, it is verified whether there is a VC ID issued in the Revocation List. If the issued VC ID exists in the list, the submitted document (VP) is invalid because it was submitted based on the revoked certificate. If all of the above verification procedures pass, the server related to the parking space reservation platform 230 permits the user terminal 220 to access the parking space reservation service.

3 is a flowchart illustrating a parking lot rental authentication process using DID.

Referring to FIG. 3 , the parking space lender 320 must also receive an identity authentication (VC) based on its DID on the blockchain 340 through the identity authentication authority 310 . The parking space lender 320 generates its own DID, public key, and private key in the same or similar manner as described in FIG. 2 , and stores the private key in the electronic wallet of the parking space borrower 320 device, and the public key After creating a DID using , it is stored in the block chain 340 . In this case, it may be stored in the block chain 340 including parking lot-related information.

Then, an identity authentication request is transmitted to the identity authentication authority 310 to the identity authentication authority 310 . At this time, the personal information of the parking space lender 320 and/or the parking lot-related information (parking location, parking space/area, number of available vehicles, rates, policies, etc.) are transmitted together. The identity authentication authority 310 compares the personal information and/or the parking lot-related information of the borrower 320 with the information it owns and checks whether it matches, and if it matches, sends the identity authentication information VC of the lender 320 to the borrower It is provided to the terminal of 320 .

The parking space lender 320 provides the received identity authentication information (VC) and parking-related information to the parking reservation platform 330 . The parking reservation platform 330 checks the identity and/or parking lot related information of the borrower 320 based on the DID document on the block chain 340 (revocation registry also checks), and if there is no abnormality, the parking space renter 320 permit access to services related to the parking reservation platform of

The parking space lender 320 may provide a rental service of a parking lot operated by the parking space user to the parking space users by using the service of the parking reservation platform.

4 is a detailed flowchart showing the process of reservation of a parking lot and entering a parking lot based on a block chain in more detail.

Referring to FIG. 4 , the parking space renter uploads parking lot information on the parking lot reservation platform. As described above, the information belongs to non-blockchain information, and may be provided in the form of information on a normal Internet communication network. This information may include the location of the parking lot, usage fees, usage conditions, and available hours.

The parking space user submits his/her identity authentication expression (VP) (which includes identity authentication (VC) of himself/herself and an identity authentication institution) to authenticate identity and access the parking reservation platform.

Then, the parking space renter reads the parking information uploaded on the platform.

A parking space user selects a parking lot having an available parking space at a location and time at which he or she wants to park from among a plurality of uploaded parking lot information and requests a reservation for a parking time and parking space.

The parking reservation platform checks the availability of the parking lot by confirming whether the reservation can be made with the parking space borrower, and the parking space lender confirms whether the reservation is valid and approves it. However, the process of inquiring whether a reservation has been made to the parking space renter and granting it may not be essential depending on the implementation of the technology. This may be necessary in case the parking lot itself has a server that records whether the parking area is available or not, or duplicate reservation requests for the same parking area may be received on the spot or through another platform. . However, in some implementation methods, based on the available time slots registered by the parking space lender on the platform, the platform determines only whether there is a conflict with the existing reservation, and determines the validity of the new reservation without a separate grant procedure from the lesser. It is also possible to

If the reservation for the parking space has been successfully made, the parking space user pays the parking space usage fee calculated in consideration of the parking fee set by the parking space lender and/or the platform fee.

The parking reservation platform registers the above payment details as transaction information in the block chain. At this time, the transaction information may include payment details, parking vehicle number, and reserved parking space/time information, as well as identification information (VP or VC) of a parking space user, and identification information (VC) of a parking space renter. have.

When the above payment process is completed, the parking reservation platform notifies the parking space renter that the reservation for the parking space is confirmed.

Then, the parking reservation platform issues an electronic ticket to the parking space user in response to the completion of the parking space reservation. It takes an electronic form, such as an RFID form, a barcode form, and/or a QR code form, as described above.

Then, when the parking space user enters the parking lot with a vehicle, the electronic ticket and his/her identity authentication information (VC) are presented together to the parking space renter (or the parking management device of the corresponding parking lot).

The parking space lender verifies its validity and authenticity by comparing this information with the transaction information recorded on the blockchain. At this time, the VC and reservation information are collated. As described above, a driver's license number, vehicle number, etc. may be added to reservation information to be compared. For example, even if the ticket is valid and the VC is valid, if the vehicle number you have been driving is different, admission may be refused or the fare may be adjusted. If there is no problem, the vehicle is allowed to enter and use the parking lot.

Depending on the implementation of the technology, the process of presenting the electronic ticket and thus granting parking lot entry against the transaction history on the blockchain may not be essential. The above process can be implemented when a manned/unmanned facility for access control is installed in the parking lot, and the facility can permit or reject parking lot entry by checking the electronic ticket, VC, vehicle number, etc. However, depending on the characteristics of the parking lot, such information is checked ex-post when leaving the vehicle rather than entering the vehicle, or only partial information in the reservation details is collated due to insufficient facilities (e.g., vehicle number with parking management personnel). bay), in the case where there are no verification personnel or facilities, such as on-street parking, trusting only the reliability of the reservation system, you may be able to use it without a separate entry permission.

Additionally, when the parking space user cancels the use of the parking space after reservation of the parking space and wants a refund, the user may transmit a refund request to the refund system in the parking reservation platform. The refund system checks the refund information requested by the parking space user. At this time, in conjunction with the receipt issuance system in the parking reservation platform, the customer cancels the reservation and performs a refund function according to the refund policy. In other words, the payment is canceled and a cancellation receipt is issued accordingly. In addition, the cancellation details are communicated to the parking space renter so that they can take necessary measures. Such refund-related details are also recorded in the blockchain system, and the previously issued vouchers are invalidated. Then, the refund system delivers the issued cancellation receipt to the consumer.

On the other hand, for additional use beyond the reserved parking time, the parking space rental company may grant an additional fee to the vehicle. At this time, after the additional charge is settled, the additional charge settlement details can also be recorded on the block chain system.

5 is a flowchart illustrating a vehicle entry and exit verification process between a vehicle number recognition device and a parking space rental terminal.

Referring to FIG. 5 , when the vehicle of the parking space user enters the parking space, the vehicle number recognition device in the parking space recognizes the number of the corresponding vehicle and provides it to the parking space rental terminal. The parking space rental terminal may be a device for checking and verifying the electronic ticket.

The parking space rental terminal can search for information related to the vehicle number stored in the blockchain system based on the vehicle number entered. Then, after bringing the transaction details related to the corresponding vehicle number, comparing the vehicle number on the vehicle number and the vehicle number on the transaction history, if the vehicle reserved according to the transaction details is correct, entry is permitted.

The above process may be processed by the parking space user presenting the electronic ticket, or may be automatically processed by simply recognizing the vehicle number without presenting the electronic ticket.

Then, if the vehicle number is recognized once again when the parking space user leaves the vehicle, the transaction details related to the vehicle number are retrieved from the block chain again, or, without going through the block chain again, the vehicle After identifying the vehicle, the additional cost is calculated based on the parking reservation time and departure time of the vehicle. If the parking space is used within the reserved parking time, eviction is permitted without additional cost.

6 is a flowchart illustrating a process of executing a blockchain DID-based parking reservation method according to an embodiment of the present invention by a deferred payment system.

Referring to FIG. 6 , the vehicle number recognition device transmits the entering vehicle number to the parking space rental terminal. The vehicle number recognition device may recognize the number of the vehicle by identifying text and numbers in the corresponding image with an image photographing device such as CCTV.

The parking space rental terminal obtains the parking start time and vehicle number of the vehicle and provides it to the parking reservation platform. Then, the VC information related to the vehicle is checked through the block chain. If the identification information of the individual related to the vehicle is verified through the VC information, the parking space rental terminal can permit entry. In this case, vehicle information may be included in the VC information, and after confirming the VC for the identification of the individual related to the vehicle and the vehicle number corresponding thereto, entry is permitted.

When the parked vehicle leaves the vehicle, the vehicle number recognition device once again acquires the number of the vehicle at the exit side, and provides it to the parking space rental terminal. The parking space rental terminal calculates the parking cost by using the previously obtained parking start time and the current exit time. Then, it proceeds with the payment and records the payment details on the blockchain. Then, if there is no problem with the payment, the car is allowed to exit.

The above process can be performed without an advance payment for a separate parking reservation, and more specifically, without an electronic ticket. You can use it by signing up for a parking reservation platform and recording personal VC information (which may include vehicle information) related to the vehicle on the blockchain.

7 is a block diagram showing the configuration of an apparatus for executing a block chain DID-based e-ticket reservation method according to an embodiment of the present invention. 7 , the user terminal, the parking reservation platform service providing server, and the parking space rental terminal may include a communication unit 710 , a processor 720 , a memory 630 and an input/output module 640 . .

Referring to FIG. 7 , the communication unit 710 is a component that communicates with an external device through a wired and/or wireless network. The communication unit 710 may include an antenna and/or a communication processor.

The processor 720 is a component that executes a function of an individual device, and executes a program or an application related to the function.

In particular, the processor 720 of the user terminal basically includes a key pair and DID generation and management function. The processor 720 may include a DID document module that generates and stores the user's DID in a key store, and generates a DID document using the public key of the key pair.

In addition, the user terminal, the parking reservation platform service providing server, and the parking space rental terminal include a block chain module. The devices have the right to access the blockchain node and may have the ability to create, read, and write information to the blockchain.

The processor 720 of the user terminal may include a module for generating a submission document (which may be referred to as a 'credential expression'). The credential representation generating module may generate a credential representation (VP: Verifiable Presentation) by adding the credential owner's signature to the credential (VC) signed by the credential issuer (identity certification authority server).

In the case of the user terminal, the processor 720 includes an authentication module for authenticating that it is a user of the user terminal device. The authentication module may be a module that performs authentication through fingerprint, authentication through iris, and/or authentication through personal information (or password). By using the identity authentication module as described above, it is possible to authenticate the person corresponding to the VC related to the electronic use right.

In the case of the parking reservation platform service providing server, the processor 720 includes a verification module, and may authenticate the user from the credential expression transmitted from the user terminal.

The processor 720 of the parking reservation platform service providing server may include a module for providing parking reservation related information, a receipt issuance module, and a refund module.

Basically, the processor 720 of the individual devices is connected to the memory 730 through a signal line, and executes a program stored in the memory 730 .

The memory 730 is a storage device that stores instructions related to programs to be executed by the processor 720 , and stores data processed by the processor 720 .

In particular, the memory 730 of the user terminal and/or the parking space rental terminal may include an electronic wallet 732, where the key pair generated in relation to the DID and the issued identity authentication data and electronic use right are stored. may be stored. A key pair is stored in a key store, and the identity authentication information is stored in a VC store.

The input/output module 740 includes information input means such as a keyboard and mouse, and information output means such as a monitor, TV, and touch screen.

Although described above with reference to the drawings and embodiments, it does not mean that the scope of protection of the present invention is limited by the drawings or embodiments, and those skilled in the art can appreciate the spirit of the present invention described in the claims below. And it will be understood that various modifications and changes can be made without departing from the scope of the present invention.

Claims (19)

In a method of providing a parking reservation service using a blockchain-based decentralized ID (DID) in a parking reservation platform providing device,
A step of providing information related to a parking space using a parking reservation platform, wherein the information is provided to the parking reservation platform by the parking space renter based on the DID-based first identity authentication (VC: Verifiable Credential) of the parking space renter. provided by upload;
Receiving a reservation request for the parking space from a user terminal, receiving a Verifiable Presentation (VP) of the user of the user terminal when the reservation request is made, the identity authentication expression (VP) is the second of the user including Verifiable Credential (VC), wherein the second identity authentication (VC) is issued by disclosing the user's DID to the blockchain;
In response to the reservation request for the parking space, proceeding with payment for the reserved parking space;
Recording transaction information related to the reservation of the parking space in a blockchain, the transaction information including information on the first identity authentication (VC) and the second identity authentication (VC) ; and
A method of providing a parking reservation service using a blockchain-based DID, comprising the step of issuing an electronic use ticket related to the reservation purchase of the parking space. The method of claim 1,
The identity authentication expression (VP) is a method of providing a parking reservation service using a blockchain-based DID, including vehicle number information related to the user. The method of claim 1,
The transaction information is a method of providing a parking reservation service using a blockchain-based DID, further comprising payment details according to parking space reservation, parking reservation vehicle number, reserved parking space and time information. The method of claim 1,
In response to the payment of the reserved parking space being completed, the method further comprising the step of notifying the terminal of the parking space lender that the reservation for the parking space has been completed, providing a parking reservation service using a blockchain-based DID Way. The method of claim 1,
The electronic ticket is used in correspondence with the second identity authentication (VC), a method of providing a parking reservation service using a blockchain-based DID. 6. The method of claim 5,
The electronic ticket is used in connection with the vehicle number recognition system associated with the parking space rental,
A method of providing a parking reservation service using a blockchain-based DID, wherein the electronic ticket is used by comparing the number of the vehicle reserved for parking related to the electronic ticket and the vehicle number of the vehicle number recognition system. The method of claim 1,
The information related to the parking space, provided through the parking reservation platform, includes a rentalable parking space identification number and available parking time information,
The reservation request is a method of providing a parking reservation service using a blockchain-based DID, which includes the identification number of the parking space to be reserved and information on the expected parking time. The method of claim 1,
in response to receiving the reservation request, inquiring whether a reservation is possible with a terminal of the parking space lender; and
The method of providing a parking reservation service using a blockchain-based DID, further comprising the step of granting the reservation request based on a response to the query. The method of claim 1,
Providing a parking reservation service using a blockchain-based DID, further comprising the step of recording, in the block chain, information related to refund of the electronic ticket or additional payment for parking usage time exceeding the parking reservation time of the electronic ticket Way. The method of claim 1,
Manage a list of users who have a history of illegal use in relation to the reservation of the parking space,
The list is a method of providing a parking reservation service using a blockchain-based DID, which is recorded in a blockchain. The method of claim 1,
The electronic ticket is issued in the form of at least one of an RFID tag, a barcode, and a QR code, a method of providing a parking reservation service using a blockchain-based DID. The method of claim 1,
The second identity authentication (VC) is issued by matching the user's DID with information about the vehicle related to the user and being authenticated, a method of providing a parking reservation service using a blockchain-based DID. In a device for providing a parking reservation service using a blockchain-based decentralized identifier (DID),
Provides information related to a parking space using a parking reservation platform, receives a reservation request for the parking space from a user terminal, and proceeds with payment for a reserved parking space in response to the reservation request for the parking space, a processor that records transaction information related to the reservation of the parking space in a block chain and issues an electronic ticket related to the reservation of the parking space; and
Including a memory for storing instructions related to the operation of the processor,
The information related to the parking space is provided by the parking space lender recording the DID-based first identity authentication (VC: Verifiable Credential) of the parking space lender in the block chain and accessing the parking reservation platform,
Receives a Verifiable Presentation (VP) of the user of the user terminal when the reservation request is made,
The identity authentication expression (VP) includes a second identity authentication (VC: Verifiable Credential) of the user,
The second identity authentication (VC) is issued by disclosing the user's DID to the blockchain,
The transaction information includes information on the first identity authentication (VC) and the second identity authentication (VC), a device for providing a parking reservation service using a blockchain-based DID. In the user terminal device for reserving a parking space using a blockchain-based distributed identifier (DID: Decentralized ID),
a key storage for storing a key pair including a private key and a public key of a user of the user terminal device;
a DID document module for generating decentralized IDentifiers (DID) of the user and generating a DID document using a public key of a key pair stored in the key store;
VC storage for receiving and storing DID-based identity authentication (VC: Verifiable Credentials) information;
Using the identity authentication (VC) information to generate an identity authentication expression (VP: Verifiable Presentation), and using the generated identity authentication expression (VP) to make a reservation for a parking space provided by a parking reservation platform service providing server a processor to which the electronic usage right corresponding thereto is issued; and
A user terminal device for reserving a parking space using a block chain-based DID, including a memory storing instructions related to the operation of the processor. 15. The method of claim 14,
The processor proceeds with a payment procedure to purchase the electronic ticket,
Upon completion of the payment process, the electronic ticket is issued from the parking reservation platform service providing server,
A user terminal device for reserving a parking space using a block chain-based DID, in which the issued electronic ticket is separately stored in the electronic wallet in the memory. 15. The method of claim 14,
Further comprising an authentication module for authenticating that the user of the user terminal,
The electronic ticket is a user terminal device for reserving a parking space using a blockchain-based DID, which can be used by authenticating the identity authentication (VC) stored in the VC storage and the individual user of the user terminal. In the device for checking the electronic ticket related to the parking reservation issued based on the blockchain-based decentralized identifier (DID: Decentralized ID),
Based on the code related to the electronic right of use of the user terminal, information related to the electronic right is extracted from the blockchain, and from the extracted information, VC: Verifiable Credentials (VC) information related to the electronic right is extracted. a processor for verifying the identity authentication authority of the identity authentication (VC) based on the identity authentication authority and the user of the user terminal device, verifying the purchase details of the electronic voucher among the extracted information, and controlling to output a verification result; and
Including a memory for storing instructions related to the operation of the processor,
The identity authentication (VC) is issued by disclosing the user's DID to the blockchain,
The processor verifies whether the identity authentication (VC) related to the electronic pass corresponds to the identity authentication (VC) stored in the user terminal, a device for verifying the electronic pass related to the parking reservation issued based on the blockchain-based DID . 18. The method of claim 17,
The processor obtains the vehicle number information from the vehicle number recognition device, compares the obtained vehicle number with the parking reservation vehicle number related to the electronic pass, and outputs a verification result, a parking reservation issued based on a blockchain-based DID A device that confirms the related electronic use right. In a method for providing a parking service using a blockchain-based decentralized ID (DID) in a parking platform service providing device,
obtaining, from a first terminal of a parking space lender who rents a parking space, first information related to the start of use of a parking space of a first vehicle;
Verifying the first identity authentication (VC) of the user related to the first vehicle using information on a blockchain, the first identity authentication (VC) is issued by disclosing the user's DID to the blockchain ;
obtaining, from the first terminal, second information related to the completion of use of the parking space of the first vehicle;
calculating a parking space usage fee by using the first information and the second information;
performing payment of the calculated parking space usage fee in conjunction with the user's second terminal; and
A method of providing a parking service using a blockchain-based DID, comprising the step of recording transaction information related to the use of the parking space in a blockchain.

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