CN109472594A - Car data sharing method, device, equipment and storage medium based on block chain - Google Patents

Car data sharing method, device, equipment and storage medium based on block chain Download PDF

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Publication number
CN109472594A
CN109472594A CN201811182819.9A CN201811182819A CN109472594A CN 109472594 A CN109472594 A CN 109472594A CN 201811182819 A CN201811182819 A CN 201811182819A CN 109472594 A CN109472594 A CN 109472594A
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block
cochain
node
automobile
unique identification
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CN109472594B (en
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汤琦
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Ping An Technology Shenzhen Co Ltd
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Ping An Technology Shenzhen Co Ltd
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Priority to PCT/CN2018/124614 priority patent/WO2020073521A1/en
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06QINFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00Payment architectures, schemes or protocols
    • G06Q20/38Payment protocols; Details thereof
    • G06Q20/382Payment protocols; Details thereof insuring higher security of transaction
    • G06Q20/3827Use of message hashing

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  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
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Abstract

The present invention relates to vehicle transaction technical field more particularly to a kind of car data sharing method, device, equipment and storage mediums based on block chain.Wherein method includes: that main engine plants' node obtains automobile information and the corresponding unique identification of the automobile information, generate automobile details block, and the cochain in block catenary system, form new block chain, the automobile details block of cochain is broadcast to other nodes by main engine plants' node, after other described nodes receive broadcast, unique identification, automobile information and cryptographic Hash are recorded;Dealer's node obtains emm message, generates maintenance block, and cochain and broadcast.Present invention introduces block catenary systems, by the decentralization feature of block chain, a set of automobile information sharing systems such as from producing to selling are constructed, realize that links participate in many ways, the purpose of car data on common maintenance block chain provides reliable car data for used car estimation.

Description

Car data sharing method, device, equipment and storage medium based on block chain
Technical field
The present invention relates to vehicle transaction technical field more particularly to a kind of car data sharing method based on block chain, Device, equipment and storage medium.
Background technique
It is most important to the appraisal of used car in second-hand automobile market.The general flow of used car appraisal is usually two Handcart dealer mentions vehicle, examines automobile, assessment presell price.Used car is when assessing presell price, according to following index comprehensive Assess presell price:
1, credible indexes: brand, vehicle, time of registering the license, appearance interior trim abrasion condition;
2, insincere index: mileage travelled, whether overhaul, whether major accident, auto parts and components are replaced, daily are made Use situation.
Wherein, for insincere index, used car dealer is unable to get accurate data, but Automotive Industry Chain other rings Section, such as main engine plants, insurance company possess partial data.It is flowed after sale even proficiency dealer also completely sells without automobile Journey necessarily has multiple links to provide service jointly.Due to, automobile value related data information is dispersed in industry everywhere, thus two Handcart dealer can not mobile phone links accurate data, assessed.
Summary of the invention
In view of this, it is necessary to lack the authentic data of automobile industry link when evaluating for used car and cause appraisal quasi- The low problem of true rate, provides a kind of car data sharing method, device, computer equipment and storage medium based on block chain.
A kind of car data sharing method based on block chain, includes the following steps:
Main engine plants' node obtains automobile information and the corresponding unique identification of the automobile information, by the unique identification and institute State automobile information generate automobile details block, by the automobile details block in block catenary system cochain, form new block Chain, main engine plants' node is by the unique identification, the automobile information and the Hash in the automobile details block of cochain Value is recorded in the preset list of cochain;
The automobile details block of cochain is broadcast to other sections in the block catenary system by main engine plants' node Point, after other described nodes receive broadcast, by the corresponding unique identification of the automobile details block, the automobile information And the cryptographic Hash is recorded into the corresponding list of cochain of own node;
Dealer's node obtains emm message, contains unique identification in the emm message, and dealer's node is by institute State emm message generate maintenance block, by the maintenance block in the block catenary system cochain, and pass through the block chain The maintenance area block chaining to the corresponding cryptographic Hash of the unique identification is formed the new block by the chain structure of system The emm message is also recorded the cochain corresponding to unique identification described in own node by chain, dealer's node In list;
The maintenance block of cochain is broadcast to other nodes in the block catenary system, institute by dealer's node State after other nodes receive broadcast, by the corresponding emm message of the maintenance block record into own node with it is described In the corresponding list of cochain of unique identification, by the corresponding cryptographic Hash of the maintenance block be updated in own node with it is described only In the corresponding list of cochain of one mark.
It is described in one of the embodiments, that the unique identification and the automobile information are generated into automobile details block, By the automobile details block in block catenary system cochain, before forming new block chain, further includes:
Main engine plants' node is compared the unique identification with all unique identifications in the list of cochain, When not having the unique identification in the list of cochain, main engine plants' node believes the unique identification and the automobile Breath generate automobile details block, by the automobile details block in block catenary system cochain, cause to generate the automobile information A block chain;
When containing the unique identification in the list of cochain, continue to judge the automobile information and the cochain Whether the corresponding automobile information of the unique identification is identical in list, and such as identical, then main engine plants' node believes the automobile Breath is without cochain;
Such as difference, then the unique identification and the automobile information are generated automobile details block by main engine plants' node, By the automobile details block in block catenary system cochain, and by the chain structure of the block catenary system, by the vapour Vehicle details block is linked to the corresponding cryptographic Hash of the unique identification, forms the new block chain, and by the automobile details The corresponding automobile information of block is recorded into the corresponding cochain list of the unique identification, by the automobile details block Corresponding cryptographic Hash is updated in the list of cochain corresponding with the unique identification.
Insurance company's node obtains insurance information in one of the embodiments, contains unique mark in the insurance information Know, insurance company's node by the insurance information generate insurance block, by the insurance block in block catenary system on Chain, and by the chain structure of the block catenary system, the insurance block is linked to the corresponding Hash of the unique identification Value, forms new block chain;
Insurance company's node also by the corresponding insurance information of the insurance block record into own node with it is described In the corresponding cochain list of unique identification, the corresponding cryptographic Hash of the insurance block is updated in own node and institute It states in the corresponding list of cochain of unique identification;
The insurance block of cochain is also broadcast to other sections in the block catenary system by insurance company's node After other described nodes receive broadcast, the corresponding insurance information of the insurance block is recorded into own node for point In the list of cochain corresponding with the unique identification, by the corresponding cryptographic Hash of the insurance block be updated in own node with In the corresponding list of cochain of the unique identification.
Supervisory node obtains punishment information in one of the embodiments, contains unique identification in the punishment information, institute State supervisory node by the punishment information generate punishment block, by the punishment block in the block catenary system cochain, and By the chain structure of the block catenary system, the punishment block is linked to the corresponding cryptographic Hash of the unique identification, shape The block chain of Cheng Xin;
The supervisory node also by the corresponding punishment information of the punishment block record into own node with it is described unique Identify in the corresponding cochain list, by the corresponding cryptographic Hash of the punishment block be updated in own node with it is described only In the corresponding list of cochain of one mark;
The punishment block of cochain is also broadcast to other nodes in the block catenary system, institute by the punishment node State after other nodes receive broadcast, by the corresponding punishment information of the punishment block record into own node with it is described In the corresponding list of cochain of unique identification, by the corresponding cryptographic Hash of the punishment block be updated in own node with it is described only In the corresponding list of cochain of one mark.
Dealer's node obtains automobile presell pricing information, the pre- price of automobile in one of the embodiments, Contain unique identification in lattice information, the automobile presell pricing information is generated presell price block by dealer's node, will Presell price block cochain in the block catenary system, and by the chain structure of the block catenary system, it will be described Presell price block is linked to the corresponding cryptographic Hash of the unique identification, forms new block chain;
Dealer's node also records the corresponding presell pricing information of the presell price block into own node In the cochain list corresponding with the unique identification, the corresponding cryptographic Hash of the presell price block is updated to itself In node in the list of cochain corresponding with the unique identification;
The presell price block of cochain is also broadcast to other in the block catenary system by dealer's node Node, after other described nodes receive broadcast, by the corresponding presell pricing information of the presell price block record to In own node in the list of cochain corresponding with the unique identification, the corresponding cryptographic Hash of the presell price block is updated Into own node in the list of cochain corresponding with the unique identification.
The automobile presell pricing information is generated presell price area by dealer's node in one of the embodiments, Block, by the presell price block in the block catenary system before cochain, further includes:
Dealer's node is compared the unique identification with all unique identifications in the list of cochain, When containing the unique identification in the list of cochain, the automobile presell pricing information and the cochain list are judged Whether the presell price in the automobile presell pricing information of the corresponding last time cochain of the interior unique identification is identical, such as phase Together, then dealer's node is to the automobile presell pricing information without cochain, and such as different, then dealer's node will The automobile presell pricing information generates presell price block, by the presell price block in the block catenary system on Chain.
Dealer's node obtains the automobile real price letter after the completion of automobile dealing in one of the embodiments, It ceases, unique identification is contained in the automobile real price information, dealer's node is raw by the automobile real price information At real price block, by the real price block in the block catenary system cochain, and pass through the block catenary system Chain structure, the real price block is linked to the corresponding cryptographic Hash of the unique identification, forms new block chain;
Dealer's node also records the corresponding real price information of the real price block into own node In the cochain list corresponding with the unique identification, the corresponding cryptographic Hash of the real price block is updated to itself In node in the list of cochain corresponding with the unique identification;
The real price block of cochain is also broadcast to other in the block catenary system by dealer's node Node, after other described nodes receive broadcast, by the corresponding real price information of the real price block record to In own node in the list of cochain corresponding with the unique identification, the corresponding cryptographic Hash of the real price block is updated Into own node in the list of cochain corresponding with the unique identification.
A kind of car data sharing means based on block chain, including following module:
Automobile information cochain module obtains automobile information and the corresponding unique mark of the automobile information for main engine plants' node Know, the unique identification and the automobile information is generated into automobile details block, by the automobile details block in block linkwork Cochain in system, forms new block chain, and main engine plants' node is by unique mark in the automobile details block of cochain Know, the automobile information and cryptographic Hash are recorded in the preset list of cochain;
The automobile details block of cochain is broadcast to the block chain by broadcast and logging modle, main engine plants' node Other nodes in system, after other described nodes receive broadcast, by the corresponding unique mark of the automobile details block Know, the automobile information and the cryptographic Hash are recorded into the corresponding list of cochain of own node;
Emm message cochain module obtains emm message for dealer's node, contains unique mark in the emm message Know, the emm message is generated maintenance block by dealer's node, by the maintenance block in the block catenary system Cochain, and by the chain structure of the block catenary system, by the maintenance area block chaining to the corresponding Kazakhstan of the unique identification Uncommon value, forms the new block chain, dealer's node also by the emm message record to described in own node only In the corresponding cochain list of one mark;
The maintenance block of cochain is broadcast to the block catenary system by broadcast and update module, dealer's node In other nodes, after other described nodes receive broadcast, by the corresponding emm message of the maintenance block record to In own node in the list of cochain corresponding with the unique identification, the corresponding cryptographic Hash of the maintenance block is updated to certainly In body node in the list of cochain corresponding with the unique identification.
A kind of computer equipment, including memory and processor are stored with computer-readable instruction in the memory, institute When stating computer-readable instruction and being executed by the processor, so that the processor executes the above-mentioned car data based on block chain The step of sharing method.
A kind of storage medium being stored with computer-readable instruction, the computer-readable instruction are handled by one or more When device executes, so that the step of one or more processors execute the above-mentioned car data sharing method based on block chain.
Above-mentioned car data sharing method, device, computer equipment and storage medium based on block chain, including main engine plants Node obtains automobile information and the corresponding unique identification of the automobile information, and the unique identification and the automobile information are generated Automobile details block, by the automobile details block in block catenary system cochain, form new block chain, main engine plants' section Point by the unique identification, the automobile information and the cryptographic Hash in the automobile details block of cochain be recorded in it is preset In cochain list;The automobile details block of cochain is broadcast to other in the block catenary system by main engine plants' node After other described nodes receive broadcast, the corresponding unique identification of the automobile details block, the automobile are believed for node Breath and the cryptographic Hash are recorded into the corresponding list of cochain of own node;Dealer's node obtains emm message, the guarantor It supports and contains unique identification in information, the emm message is generated maintenance block by dealer's node, by the maintenance block The cochain in the block catenary system, and by the chain structure of the block catenary system, by the maintenance area block chaining to institute The corresponding cryptographic Hash of unique identification is stated, the new block chain is formed, dealer's node also records the emm message Into the corresponding cochain list of unique identification described in own node;Dealer's node is by the maintenance of cochain Block is broadcast to other nodes in the block catenary system, after other described nodes receive broadcast, by the maintenance block The corresponding emm message is recorded into own node in the list of cochain corresponding with the unique identification, by the maintenance The corresponding cryptographic Hash of block is updated in own node in the list of cochain corresponding with the unique identification.Present invention introduces areas Block catenary system constructs a set of automobile information sharing systems such as from producing to selling by the decentralization feature of block chain, real Existing links participate in many ways, the common purpose for safeguarding the car data on block chain, provide for used car estimation reliable Car data.
Detailed description of the invention
By reading the following detailed description of the preferred embodiment, various other advantages and benefits are common for this field Technical staff will become clear.The drawings are only for the purpose of illustrating a preferred embodiment, and is not considered as to the present invention Limitation.
Fig. 1 is the flow chart of the car data sharing method based on block chain in one embodiment;
Fig. 2 is the flow chart judged in one embodiment the uniqueness of automobile information;
Fig. 3 is a kind of structural schematic diagram of block catenary system in one embodiment;
Fig. 4 is the structure chart of the car data sharing means based on block chain in one embodiment.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and It is not used in the restriction present invention.
Those skilled in the art of the present technique are appreciated that unless expressly stated, singular " one " used herein, " one It is a ", " described " and "the" may also comprise plural form.It is to be further understood that being arranged used in specification of the invention Diction " comprising " refer to that there are the feature, integer, step, operation, element and/or component, but it is not excluded that in the presence of or addition Other one or more features, integer, step, operation, element, component and/or their group.
Fig. 1 is the flow chart of the car data sharing method based on block chain in one embodiment of the invention, including such as Lower step:
Step S1, automobile information cochain: main engine plants' node obtains automobile information and the corresponding unique identification of automobile information, will Unique identification and automobile information generate automobile details block, by automobile details block in block catenary system cochain, formed new Unique identification, automobile information and cryptographic Hash in the automobile details block of cochain is recorded in default by block chain, main engine plants' node The list of cochain in.
Block catenary system is a kind of system based on block chain technology, and also referred to as distributed account book technology is a kind of mutual Networking data library technology.Its main feature is that it is decentralization, open and clear, allow each user to each may participate in maintenance data-base recording.Area Block catenary system mainly includes network layer, common recognition layer and data Layer etc..Block catenary system is Distributed Storage, point-to-point biography The new application mode of the computer technologies such as defeated, common recognition mechanism, Encryption Algorithm.Wherein, data Layer encapsulates bottom data block And the basic datas such as relevant data encryption and timestamp and rudimentary algorithm, and bottom data block is presented with chain structure, I.e. block chain is a kind of a kind of linked data structure for being sequentially in time combined into data block in such a way that sequence is connected, And the distributed account book that can not be distorted He can not forge guaranteed in a manner of cryptography.
Therefore this step is able to achieve the distributed recording and distributed storage of car data using block chain technology, and so-called point Cloth record is exactly that can be set as block catenary system by any computer for recording automobile information in the main engine plants of production automobile In a node, which is main engine plants' nodes records automobile information, generates automobile details block and in block catenary system Cochain, automobile information rather than recorded by the mechanism of a centralization, so-called distributed storage is that data can store in institute Have in the node for participating in maintenance data, rather than is centrally stored in the agency node of centralization, i.e., main engine plants' section in this step Point can be multiple, multiple main frames factory node can by the automobile information of production in block catenary system cochain.
All nodes all preset cochain list in the database in block catenary system, and cochain list includes all areas The corresponding unique identification of block chain, automobile information and cryptographic Hash, after main engine plants' node completes cochain, by the automobile details block of cochain Corresponding unique identification, automobile information and cryptographic Hash are recorded in cochain list.
Automobile information may include at least one information in brand, model, mileage travelled or charging times in this step. Unique identification can be automobile engine number, vehicle identification number or cycle serial number, unique identification preferred vehicle identification number, vehicle Identification number be one group by 17 English arrays at one group of unique number on automobile can identify automobile The data such as manufacturer, engine, chassis serial number.Cryptographic Hash is to be located at the block of the last one cochain in chain in this block chain Cryptographic Hash.
Upper chain process in this step by automobile details block in block catenary system when cochain is by automobile details block The process being stored in the data Layer of block catenary system.
Step S2, broadcast and record: the automobile details block of cochain is broadcast in block catenary system by main engine plants' node After other nodes receive broadcast, the corresponding unique identification of automobile details block, automobile information and cryptographic Hash are remembered for other nodes Record is into the corresponding list of cochain of own node.
All nodes in block catenary system are all preset with cochain list, and this step realizes the cochain of each node The all synchronous purpose of list, i.e. automobile information are consistent.Therefore also the block of cochain is carried out after main engine plants' node completes cochain Broadcast, after other nodes receive broadcast, synchronizes update or record to the list of cochain in respective node.The mistake of record Journey is to increase the process of information in cochain list, and the process of update is that the process of up-to-date information is replaced in cochain list. After the synchronizing information of this step, as long as any node in block catenary system can be checked in all block catenary systems All automobile informations, and automobile information is newest information.
Step S3, emm message cochain: dealer's node obtains emm message, contains unique identification in emm message, passes through It sells quotient's node and emm message is generated into maintenance block, block cochain in block catenary system will be maintained, and pass through block catenary system Chain structure maintenance area block chaining to the corresponding cryptographic Hash of unique identification is formed into new block chain, dealer's node will also Emm message is recorded into own node in the corresponding list of cochain of unique identification.
In this step, one set any computer that emm message is recorded in dealer in block catenary system is saved Point, the node are dealer's node.Wherein, emm message includes service time and maintenance project.As long as dealer's node obtains As soon as time emm message generates primary maintenance block and carries out cochain.
Step S4, broadcast and update: the maintenance block of cochain is broadcast to other in block catenary system by dealer's node Node after other nodes receive broadcast, will maintain the corresponding emm message of block and record into own node and unique identification In the corresponding list of cochain, will maintain the corresponding cryptographic Hash of block be updated in own node it is corresponding with unique identification on In chain list.
Since all nodes in block catenary system have preset cochain list, it is not only on main engine plants' node Need to broadcast other nodes after chain, dealer's node also broadcasts the maintenance block of cochain, in order to block catenary system All nodes realize the purpose of synchronous car data.This step is by automobile maintenance process usually also by the mode of cochain It is recorded in block catenary system, is checked for all nodes, all nodes will appreciate that whether the automobile is maintained on time, if The insincere index such as overhaul and replacement key components and parts has been carried out, provides accurate data for the appraisal of subsequent used car.
Links such as main engine plants, dealer, insurance company and vehicle administration office's car data phase in orthodox car process of exchange Information is closed, is dispersed in everywhere in industry, difficulty is brought for the price of subsequent used car.The present embodiment passes through main engine plants' node pair Automobile information when automobile dispatches from the factory carries out cochain in block catenary system, is carried out the emm message of automobile by dealer Chain, and these car datas are unique, as long as the node in block catenary system, can check these data, block catenary system In each participant it is equal, ensure that and upload data safe and reliable and can not distort, used car estimation is provided Reliable accurate car data.
In one embodiment, in step S1, unique identification and automobile information are generated into automobile details block, automobile is detailed Feelings block cochain in block catenary system, before forming new block chain, as shown in Fig. 2, further including that main engine plants' node believes automobile The uniqueness of breath is judged:
Step S101, compare unique identification: main engine plants' node is all unique marks in unique identification and cochain list Knowledge is compared, and when not having unique identification in cochain list, unique identification and automobile information are generated vapour by main engine plants' node Vehicle details block, by automobile details block in block catenary system cochain, cause generate automobile information a block chain.
All unique identifications recorded in cochain list are all the automobile informations of cochain, in order to guarantee that main engine plants save Point will cochain automobile information uniqueness, avoid the problem that the multiple cochain of same automobile information, this step is by by host The unique identification that factory's node obtains is compared with all unique identifications in cochain list, judges whether it is the vapour of cochain Vehicle information, when not having unique identification in cochain list, it is believed that this automobile information also not by cochain, main engine plants' node continue into Row generates automobile details block and cochain work.After the completion of cochain, for the synchronization and uniformly of data, main engine plants' node will also be rigid The corresponding unique identification of automobile details block, automobile information and the cryptographic Hash of cochain are recorded in cochain list, and broadcast reality Now synchronize.
Step S102, judges automobile information: when containing unique identification in cochain list, continue judge automobile information and Whether the corresponding automobile information of unique identification identical in cochain list, such as it is identical, then main engine plants' node to automobile information not into Row cochain.
When containing unique identification in cochain list, it is believed that this automobile information cochain, at this point, also continuing judging cochain The automobile information that provides of automobile information and the main engine plants employee that main engine plants nodes obtains it is whether identical, it is such as identical, then it represents that be Identical automobile information, in order to avoid repeating cochain, main engine plants' node is to automobile information without cochain.
Step S103, cochain: as different, then unique identification and automobile information are generated automobile details area by main engine plants' node Block, by automobile details block in block catenary system cochain, and by the chain structure of block catenary system, by automobile details block It is linked to the corresponding cryptographic Hash of unique identification, forms new block chain, and the corresponding automobile information of automobile details block is recorded Into the corresponding list of cochain of unique identification, the corresponding cryptographic Hash of automobile details block is updated to corresponding with unique identification In cochain list.
In the automobile information difference of the automobile information and the newest acquisition of main engine plants' node that judge cochain, it is believed that automobile factory Preceding to there is the case where updating automobile information, this automobile information is not to repeat cochain, but more new information should be connected on On the block chain of chain, main engine plants' node continues to generate automobile details block and cochain work at this time.After the completion of cochain, in order to The synchronization of data and uniformly, main engine plants' node also records the automobile information of rigid cochain, is updated to cryptographic Hash, and wide Realization is broadcast to synchronize.
The present embodiment in order to determination will cochain automobile information uniqueness, in cochain list to unique identification and Judgement is compared in automobile information, guarantees the uniqueness of the automobile information of cochain, so that realizing can check most on any node New unique car data, avoids the repetition and confusion of car data.
In one embodiment, insurance company's node obtains insurance information, and unique identification is contained in insurance information, and insurance is public It takes charge of node and insurance information is generated into insurance block, block cochain in block catenary system will be insured, and pass through block catenary system Insurance block is linked to the corresponding cryptographic Hash of unique identification, forms new block chain by chain structure;Insurance company's node will also The corresponding insurance information of insurance block is recorded into own node in the list of cochain corresponding with unique identification, will insure block Corresponding cryptographic Hash is updated in own node in the list of cochain corresponding with unique identification;Insurance company's node is also by cochain Insurance block be broadcast to other nodes in block catenary system, it is corresponding by block is insured after other nodes receive broadcast Insurance information is recorded into own node in the list of cochain corresponding with unique identification, will insure the corresponding cryptographic Hash of block more Newly into own node in the list of cochain corresponding with unique identification.
In the present embodiment, by insurance company record insurance information any computer be set as in block catenary system one A node, the node are insurance company's node.Insurance information includes safe time, Claims Resolution time and Claims Resolution details.Insurance company As soon as generating primary insurance block as long as node obtains time insurance information and carrying out cochain and broadcast, realize the same of insurance information Step.In addition, the participation of insurance company, can think that car owner provides financial service, such as root by the car data in block catenary system According to host vehicle service condition, insurance and loan transaction etc. are provided to car owner.
The insurance information that insurance company generates the insurance business that automobile provides is shared to block catenary system by the present embodiment In, insurance company can provide automobile related significant accident information, these information are participated in the common maintenance of car data, any Participant can understand the insincere index of a certain automobile, and data source is reliably accurate, bring for the assessment of subsequent used car And its important reference value.
In one embodiment, supervisory node obtains punishment information, punishes and contains unique identification in information, and supervisory node will It punishes information and generates punishment block, block cochain in block catenary system will be punished, and pass through the chain structure of block catenary system, Punishment block is linked to the corresponding cryptographic Hash of unique identification, forms new block chain;Supervisory node also corresponds to punishment block Punishment information record into own node in the list of cochain corresponding with unique identification, the corresponding cryptographic Hash of block will be punished It is updated in own node in the list of cochain corresponding with unique identification;The punishment block of cochain is also broadcast to by punishment node Other nodes in block catenary system after other nodes receive broadcast, will be punished the corresponding punishment information of block and be recorded to certainly In body node in the list of cochain corresponding with unique identification, will punish the corresponding cryptographic Hash of block be updated in own node with In the corresponding list of cochain of unique identification.
In the present embodiment, one in block catenary system is set by any computer of record punishment information in vehicle administration office Node, the node are supervisory node.Punishment information includes penalty minutes and punishment details.As long as supervisory node obtains primary punishment Information realizes the synchronization of punishment information with regard to generating primary punishment block and carrying out cochain and broadcast.
The present embodiment by vehicle administration office to punishment information sharing of the automobile in process of supervision into block catenary system, vehicle administration office It can provide automobile relevant punishment details, these information are participated in the common maintenance of car data, any participant is ok Understand the history punishment details of a certain automobile, and data source is reliably accurate, and only not subsequent used car assessment is brought and its again The reference value wanted, the participation of vehicle administration office increase government to the control power of block catenary system.
In one embodiment, dealer's node obtains automobile presell pricing information, contains in automobile presell pricing information Unique identification, automobile presell pricing information is generated presell price block by dealer's node, by presell price block in block chain Cochain in system, and pass through the chain structure of block catenary system, presell price block is linked to the corresponding Hash of unique identification Value, forms new block chain;Dealer's node also records the corresponding presell pricing information of presell price block to own node In in the list of cochain corresponding with unique identification, by the corresponding cryptographic Hash of presell price block be updated in own node with only In the corresponding list of cochain of one mark;The presell price block of cochain is also broadcast in block catenary system by dealer's node After other nodes receive broadcast, the corresponding presell pricing information of presell price block is recorded to own node for other nodes In in the list of cochain corresponding with unique identification, by the corresponding cryptographic Hash of presell price block be updated in own node with only In the corresponding list of cochain of one mark.
In the present embodiment, emm message is not only generated maintenance block cochain and broadcasted by dealer's node, also pre- to automobile Pricing information is sold to generate presell price block cochain and broadcast.Automobile presell pricing information includes presell time and presell price. As soon as long as dealer's node obtain time automobile presell pricing information, generate an automobile presell price block and carry out cochain with Broadcast.Dealer in dealer's node can be a handcart dealer, be also possible to used car dealer.Used car dealer The car data that the automobile of each cochain can be checked according to the built-in list of cochain in the database, obtains automobile with this Links accurate data finally calculates used car price in conjunction with algorithm for estimating, and obtained used car price is more accurate.
The present embodiment is by sale of automobile price disclosed in dealer's node, after block catenary system cochain, for all sections Point is checked, realizes the open and clear purpose of sale of automobile price.
In one embodiment, automobile presell pricing information is generated presell price block by dealer's node, by pre- price Lattice block is in block catenary system before cochain, further includes:
Dealer's node is compared unique identification with all unique identifications in cochain list, when cochain list In contain unique identification when, judge automobile presell pricing information last time cochain corresponding with unique identification in cochain list Automobile presell pricing information in presell price it is whether identical, such as it is identical, then dealer's node is to automobile presell pricing information Such as different without cochain, then automobile presell pricing information is generated presell price block by dealer's node, by presell price area Block cochain in block catenary system.
The present embodiment is for judging whether automobile presell pricing information repeats, and when judging, comparison is cochain list The presell price of interior last time cochain is avoided when presell price is not floated, and is repeated cochain, is further avoided block chain Data is numerous and jumbled in system.
In one embodiment, dealer's node obtains the automobile real price information after the completion of automobile dealing, and automobile is real Contain unique identification in the pricing information of border, automobile real price information is generated real price block by dealer's node, will be practical Price block cochain in block catenary system, and pass through the chain structure of block catenary system, real price block is linked to only The corresponding cryptographic Hash of one mark, forms new block chain;Dealer's node also believes the corresponding real price of real price block In the list of cochain corresponding with unique identification, the corresponding cryptographic Hash of real price block is updated into own node for breath record Into own node in the list of cochain corresponding with unique identification;Dealer's node also broadcasts the real price block of cochain To other nodes in block catenary system, after other nodes receive broadcast, the corresponding real price of real price block is believed In the list of cochain corresponding with unique identification, the corresponding cryptographic Hash of real price block is updated into own node for breath record Into own node in the list of cochain corresponding with unique identification.
In the present embodiment, automobile presell pricing information is not only generated automobile presell price block cochain simultaneously by dealer's node Broadcast, the real price information after also executing sales to automobile generate real price block cochain and broadcast, automobile real price Information includes selling time and selling price, can also include seller information and buyer data etc..The present embodiment is subsequent automobile Dealing provides more transparent disclosed car data.
In one embodiment, as shown in figure 3, containing there are four nodes, respectively main engine plants' node in block catenary system 1, dealer's node 2, insurance company's node 3, supervisory node 4.Four nodes are preset with cochain list, and cochain list can With as shown in table 1 below:
Unique identification Vehicle identification number 1
Cryptographic Hash XXXX
Automobile information Brand, model, mileage travelled, charging times
Automobile presell price Presell time, presell price
Automobile real price information Selling time, selling price
Emm message Service time maintains project
Insurance information Safe time settles a claim the time, details of settling a claim
Punish information Penalty minutes punish details
Table 1
All nodes in block catenary system are preset with car data and check interface, and any node is looked by car data See that unique identification, automobile information, automobile presell pricing information, the automobile real price in the list of cochain of storage are believed in interface At least one of breath, emm message, insurance information, punishment information etc. information is shown, and for buying car, personnel are checked.
In one embodiment, all nodes in block catenary system can be assigned when being registered in block catenary system Permission, for example, main engine plants' node can only carry out cochain to automobile details block, dealer's node can only be to automobile presell price area Block, automobile real price block, maintenance block carry out cochain, and insurance company's node can only carry out cochain, supervision to insurance block Node can only carry out cochain to punishment block.And all blocks can inquire all information for downloading cochain.
The present invention is based on the car data sharing method of block chain, it will be dispersed in and generate each of car data in every profession and trade Side, such as the production main engine plants of automobile, the dealer of selling automobiles, insurance company, the vehicle administration office for supervising automobile industry, pass through area Block chain technology establishes information sharing platform, and each side is allowed to participate in common building car data, and each side's node cooperation shared data is based on Block catenary system can not distort advantage, provide reliable and secure car data, not only to masses provide automobile from production to All process datas during scrapping use when can also estimate for used car, improve used car and estimate accuracy.
In one embodiment it is proposed that a kind of car data sharing means based on block chain, as shown in figure 4, including Following module:
Automobile information cochain module obtains automobile information and the corresponding unique identification of automobile information for main engine plants' node, Unique identification and automobile information are generated into automobile details block, cochain, formation are new in block catenary system by automobile details block Block chain, unique identification, automobile information and the cryptographic Hash in the automobile details block of cochain are recorded in pre- by main engine plants' node If the list of cochain in;
The automobile details block of cochain is broadcast to other in block catenary system by broadcast and logging modle, main engine plants' node Node, after other nodes receive broadcast, by the corresponding unique identification of automobile details block, automobile information and cryptographic Hash record to In the corresponding list of cochain of own node;
Emm message cochain module obtains emm message for dealer's node, contains unique identification in emm message, pass through It sells quotient's node and emm message is generated into maintenance block, block cochain in block catenary system will be maintained, and pass through block catenary system Chain structure maintenance area block chaining to the corresponding cryptographic Hash of unique identification is formed into new block chain, dealer's node will also Emm message is recorded into own node in the corresponding list of cochain of unique identification;
The maintenance block of cochain is broadcast to other sections in block catenary system by broadcast and update module, dealer's node Point after other nodes receive broadcast, will maintain the corresponding emm message of block and record into own node and unique identification pair In the list of cochain answered, the corresponding cryptographic Hash of block will be maintained and be updated in own node cochain corresponding with unique identification In list.
In one embodiment it is proposed that a kind of computer equipment, including memory and processor, it is stored in memory Computer-readable instruction when computer-readable instruction is executed by processor, is based in the various embodiments described above so that processor executes Step in the car data sharing method of block chain.
In one embodiment it is proposed that a kind of storage medium for being stored with computer-readable instruction, computer-readable finger When order is executed by one or more processors, so that one or more processors execute in the various embodiments described above based on block chain Step in car data sharing method.Wherein, storage medium can be non-volatile memory medium.
Those of ordinary skill in the art will appreciate that all or part of the steps in the various methods of above-described embodiment is can It is completed with instructing relevant hardware by program, which can be stored in a computer readable storage medium, storage Medium may include: read-only memory (ROM, Read Only Memory), random access memory (RAM, Random Access Memory), disk or CD etc..
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited In contradiction, all should be considered as described in this specification.
Some exemplary embodiments of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but It cannot be construed as a limitation to the scope of the present invention.It should be pointed out that for the ordinary skill people of this field For member, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to of the invention Protection scope.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.

Claims (10)

1. a kind of car data sharing method based on block chain characterized by comprising
Main engine plants' node obtains automobile information and the corresponding unique identification of the automobile information, by the unique identification and the vapour Vehicle information generate automobile details block, by the automobile details block in block catenary system cochain, form new block chain, institute Main engine plants' node is stated to record the unique identification, the automobile information and the cryptographic Hash in the automobile details block of cochain In the preset list of cochain;
The automobile details block of cochain is broadcast to other nodes in the block catenary system, institute by main engine plants' node It states after other nodes receive broadcast, by the corresponding unique identification of the automobile details block, the automobile information and institute Cryptographic Hash is stated to record into the corresponding list of cochain of own node;
Dealer's node obtains emm message, contains unique identification in the emm message, and dealer's node is by the guarantor Support information generate maintenance block, by the maintenance block in the block catenary system cochain, and pass through the block catenary system Chain structure the maintenance area block chaining to the corresponding cryptographic Hash of the unique identification is formed into the new block chain, institute It states dealer's node and the emm message is also recorded into the cochain list corresponding to unique identification described in own node In;
The maintenance block of cochain is broadcast to other nodes in the block catenary system by dealer's node, it is described its After his node receives broadcast, by the corresponding emm message of the maintenance block record into own node with it is described unique It identifies in the corresponding list of cochain, the corresponding cryptographic Hash of the maintenance block is updated in own node and unique mark Know in the corresponding list of cochain.
2. the car data sharing method according to claim 1 based on block chain, which is characterized in that the general is described only One mark and the automobile information generate automobile details block, by the automobile details block in block catenary system cochain, shape Before the block chain of Cheng Xin, further includes:
Main engine plants' node is compared the unique identification with all unique identifications in the list of cochain, works as institute It states when there is no the unique identification in cochain list, main engine plants' node is raw by the unique identification and the automobile information At automobile details block, by the automobile details block in block catenary system cochain, cause to generate the one of the automobile information Block chain;
When containing the unique identification in the list of cochain, continue to judge the automobile information and the cochain list Whether the corresponding automobile information of the interior unique identification identical, such as identical, then main engine plants' node to the automobile information not Carry out cochain;
Such as difference, then the unique identification and the automobile information are generated automobile details block by main engine plants' node, by institute Automobile details block cochain in block catenary system is stated, and by the chain structure of the block catenary system, the automobile is detailed Feelings block is linked to the corresponding cryptographic Hash of the unique identification, forms the new block chain, and by the automobile details block Corresponding automobile information is recorded into the corresponding cochain list of the unique identification, and the automobile details block is corresponding Cryptographic Hash be updated in the list of cochain corresponding with the unique identification.
3. the car data sharing method according to claim 1 based on block chain, which is characterized in that insurance company's node Insurance information is obtained, unique identification is contained in the insurance information, the insurance information is generated and protected by insurance company's node Danger zone block, by the insurance block, cochain will be described and by the chain structure of the block catenary system in block catenary system Insurance block is linked to the corresponding cryptographic Hash of the unique identification, forms new block chain;
Insurance company's node also by the corresponding insurance information of the insurance block record into own node with it is described unique Identify in the corresponding cochain list, by the corresponding cryptographic Hash of the insurance block be updated in own node with it is described only In the corresponding list of cochain of one mark;
The insurance block of cochain is also broadcast to other nodes in the block catenary system, institute by insurance company's node State after other nodes receive broadcast, by the corresponding insurance information of the insurance block record into own node with it is described In the corresponding list of cochain of unique identification, by the corresponding cryptographic Hash of the insurance block be updated in own node with it is described only In the corresponding list of cochain of one mark.
4. the car data sharing method according to claim 1 based on block chain, which is characterized in that supervisory node obtains Information is punished, unique identification is contained in the punishment information, the punishment information is generated punishment block by the supervisory node, will Punishment block cochain in the block catenary system, and by the chain structure of the block catenary system, by the punishment Block is linked to the corresponding cryptographic Hash of the unique identification, forms new block chain;
The supervisory node also records the corresponding punishment information of the punishment block into own node and the unique identification In the corresponding cochain list, the corresponding cryptographic Hash of the punishment block is updated in own node and unique mark Know in the corresponding list of cochain;
The punishment block of cochain is also broadcast to other nodes in the block catenary system by the punishment node, it is described its After his node receives broadcast, by the corresponding punishment information of the punishment block record into own node with it is described unique It identifies in the corresponding list of cochain, the corresponding cryptographic Hash of the punishment block is updated in own node and unique mark Know in the corresponding list of cochain.
5. the car data sharing method according to claim 1 based on block chain, which is characterized in that dealer's section Point acquisition automobile presell pricing information, contains unique identification in the automobile presell pricing information, and dealer's node is by institute State automobile presell pricing information generate presell price block, by the presell price block in the block catenary system cochain, And by the chain structure of the block catenary system, the presell price block is linked to the corresponding Hash of the unique identification Value, forms new block chain;
Dealer's node also records the corresponding presell pricing information of the presell price block into own node and institute It states in the corresponding cochain list of unique identification, the corresponding cryptographic Hash of the presell price block is updated to own node In in the list of cochain corresponding with the unique identification;
The presell price block of cochain is also broadcast to other nodes in the block catenary system by dealer's node, After other described nodes receive broadcast, the corresponding presell pricing information of the presell price block is recorded to itself and is saved In point in the list of cochain corresponding with the unique identification, the corresponding cryptographic Hash of the presell price block is updated to itself In node in the list of cochain corresponding with the unique identification.
6. the car data sharing method according to claim 5 based on block chain, which is characterized in that dealer's section The automobile presell pricing information is generated presell price block by point, by the presell price block in the block catenary system Before cochain, further includes:
Dealer's node is compared the unique identification with all unique identifications in the list of cochain, works as institute When stating in cochain list containing the unique identification, institute in the automobile presell pricing information and the list of cochain is judged Whether the presell price stated in the automobile presell pricing information of the corresponding last time cochain of unique identification is identical, such as identical, then Dealer's node is to the automobile presell pricing information without cochain, and such as different, then dealer's node will be described Automobile presell pricing information generate presell price block, by the presell price block in the block catenary system cochain.
7. the car data sharing method according to claim 1 based on block chain, which is characterized in that dealer's section The automobile real price information after the completion of the dealing of acquisition automobile is put, contains unique identification in the automobile real price information, institute It states dealer's node and the automobile real price information is generated into real price block, by the real price block in the area Cochain in block catenary system, and by the chain structure of the block catenary system, by the real price block be linked to it is described only The corresponding cryptographic Hash of one mark, forms new block chain;
Dealer's node also records the corresponding real price information of the real price block into own node and institute It states in the corresponding cochain list of unique identification, the corresponding cryptographic Hash of the real price block is updated to own node In in the list of cochain corresponding with the unique identification;
The real price block of cochain is also broadcast to other nodes in the block catenary system by dealer's node, After other described nodes receive broadcast, the corresponding real price information of the real price block is recorded to itself and is saved In point in the list of cochain corresponding with the unique identification, the corresponding cryptographic Hash of the real price block is updated to itself In node in the list of cochain corresponding with the unique identification.
8. a kind of car data sharing means based on block chain characterized by comprising
Automobile information cochain module obtains automobile information and the corresponding unique identification of the automobile information for main engine plants' node, The unique identification and the automobile information are generated into automobile details block, by the automobile details block in block catenary system Cochain, forms new block chain, and main engine plants' node is by the unique identification in the automobile details block of cochain, institute It states automobile information and cryptographic Hash is recorded in the preset list of cochain;
The automobile details block of cochain is broadcast to the block catenary system by broadcast and logging modle, main engine plants' node In other nodes, after other described nodes receive broadcast, by the corresponding unique identification of the automobile details block, institute It states automobile information and the cryptographic Hash is recorded into the corresponding list of cochain of own node;
Emm message cochain module obtains emm message for dealer's node, contains unique identification in the emm message, institute State dealer's node by the emm message generate maintenance block, by the maintenance block in the block catenary system cochain, And by the chain structure of the block catenary system, by the maintenance area block chaining to the corresponding cryptographic Hash of the unique identification, The new block chain is formed, dealer's node also records the emm message to unique identification described in own node In the corresponding cochain list;
The maintenance block of cochain is broadcast in the block catenary system by broadcast and update module, dealer's node After other described nodes receive broadcast, the corresponding emm message of the maintenance block is recorded to itself for other nodes In node in the list of cochain corresponding with the unique identification, the corresponding cryptographic Hash of the maintenance block is updated to itself section In point in the list of cochain corresponding with the unique identification.
9. a kind of computer equipment, including memory and processor, it is stored with computer-readable instruction in the memory, it is described When computer-readable instruction is executed by the processor, so that the processor executes such as any one of claims 1 to 7 right It is required that the step of car data sharing method based on block chain.
10. a kind of storage medium for being stored with computer-readable instruction, the computer-readable instruction is handled by one or more When device executes, so that one or more processors are executed is based on block chain as described in any one of claims 1 to 7 claim Car data sharing method the step of.
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CN111885072A (en) * 2020-07-29 2020-11-03 中国联合网络通信集团有限公司 Information updating method, server and terminal
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