CN112950229A - Block chain composite tracing method and tracing and identification analysis system - Google Patents
Block chain composite tracing method and tracing and identification analysis system Download PDFInfo
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Abstract
The invention discloses a block chain composite traceability method and a traceability and identification analysis system.A identification authentication module generates identification for suppliers, enterprises, users and the like on a block chain and commodities thereof, key information of a kernel core component or a whole machine product is subjected to identification analysis before chaining, so that the key information corresponds to each other one by one, a data format is formed before chaining of the key information, the data and the data format of the chaining is verified before chaining, the chaining is performed after the data verification passes and a block chain data index and an abstract are formed, the index and the abstract are stored in a block chain cache database, and the result of the data verification passing is broadcasted to the whole network; and updating and comparing the block chain data and the data corresponding node information in real time to ensure the safety of the data, so that a complete machine manufacturer obtains product maintenance information through identification analysis, establishes a commodity information tracing mechanism, collects credible data to form a block chain composite tracing system, and can ensure a safe and efficient industrial commodity tracing process.
Description
Technical Field
The invention belongs to the technical field of block chains, and particularly relates to technologies of multi-party data collaboration, data sharing, data cross validation, composite traceability and identification analysis.
Background
The block chain technology is a distributed book type data processing technology, realizes trusted storage and safe sharing of data by combining key core technologies such as cryptography, a distributed database, a P2P network, a consensus mechanism, a timestamp technology, an intelligent contract and the like, and belongs to a brand-new distributed infrastructure and computing paradigm. The national province and the local province encourage the promotion of the block chain application development and application, and various industries actively explore the block chain application scene under the environment and promote the improvement and the update of the related block chain technology.
At present, a block chain technology is applied to supply chain upstream and downstream enterprises and platforms under a sharing mode, the problems of centralization and trust in the data processing and information storage processes are solved, meanwhile, the block chain technology comprises a timestamp technology and a distributed accounting technology, the problem of source tracing and anti-counterfeiting of some commodities in the circulation process can be solved, because the block chain realizes a point-to-point transmission network based on a P2P technology, the mutual communication does not depend on central node control, transaction information is automatically generated by two parties, then the transaction process is realized through whole-network broadcasting, in addition, a hash function, an asymmetric encryption algorithm and a Mercker tree structure can ensure that logistics information of off-line vehicles, stations, goods sources and the like can realize automation, safety, confidentiality and privacy protection in the transmission process on line, and credibility, safety, confidentiality and privacy protection are provided for the transmission process of commodity information tracing based on the block chain technology, Safety and high efficiency. Therefore, the logistics tracing mechanism model based on the blockchain technology is a decentralized distributed data storage technology, all data information can be stored in a plurality of nodes or all nodes of the whole blockchain network, authenticity and transparency of transaction data are guaranteed, meanwhile, the transaction data are prevented from being tampered, and a decentralized security credit system is naturally established.
Although the block chain has the advantages and the prospects in the traceability field, the development of the core technology of the block chain needs to be advanced continuously because the block chain is still in the initial development stage, and a scheme for solving the application scene of the specific block chain has a plurality of defects, for example, the problem of information asymmetry between an information service provider and a transport provider exists in the initial development stage of the commodity information traceability block chain, and the problem of bottleneck of system efficiency and potential safety hazard caused by a block chain distributed consensus mechanism exists. Therefore, a need exists for a method for block chain composite tracing, which solves the problems of information asymmetry and data processing efficiency during the tracing process.
Disclosure of Invention
Based on the background and the problems in the prior art, the invention provides a block chain composite traceability method and a traceability and identification analysis system, wherein the method can realize the real-time traceability supervision of the industrial products from the core components to the manufacturing process in the field of industrial internet. The system comprises a block chain composite traceability system and an identification analysis system, improves the efficiency of a node or data processing method of a block chain, and further promotes the comprehensive realization of a safe and efficient commodity traceability process.
To achieve these objects and other advantages and in accordance with the purpose of the invention, a method for blockchain composite tracing is provided, which comprises the following steps:
the identity authentication module generates identity identifiers for organizations or nodes (suppliers, enterprises and users) of the block chain and commodities (industrial products) of the organizations, the enterprises and the users, and before chaining, the key information of the commodities in the organizations or the nodes of the block chain is subjected to identifier analysis, so that the key information of the commodities in the organizations or the nodes corresponds to one another; the commodity is a core component or a complete machine product;
converting commodity key information in each organization or node of the block chain into data with a data format;
verifying the data and the data format before uplink, chaining the commodity key information after the data verification is passed to form a block chain data index and an abstract, storing the processed block chain data index and the abstract into a block chain cache database, and broadcasting the data verification passing result to the whole network;
acquiring block chain data after the block chain verification is passed, simultaneously acquiring product maintenance information through identification analysis by a complete machine manufacturer, establishing a core component information tracing mechanism, acquiring commodity data in real time, forming a block chain composite tracing system, and realizing a commodity tracing process;
in the tracing process, the state of the node corresponding to the comparison block chain data and the data is updated and compared in real time (the comparison of the identity identifiers is particularly noticed), the safety of the data is ensured, the balance of the key information data of the commodities in each organization or node of the block chain is ensured, the key information chaining of the commodities in each organization or node of the block chain is completed based on the key information chaining, and the tracing of the subsequent commodities is realized.
Further, the identity authentication module manages the identity, and generates and distributes the identity by extracting information data in the global basic information table, the global identity information table and the global commodity state information table, and the specific implementation steps include:
storing commodity identification, a standard identification code and a digital code corresponding to the commodity identification, and a code address of the digital code in a global identity information table into a global basic information table for commodity indexing, wherein the standard identification code comprises identity authentication information, related address information, source information and user right information;
storing commodity identity information, a public key corresponding to the identity information and trust evaluation value information in a global identity information table;
recording the operation behavior of the commodity in the block chain, and updating and recording the operation behavior in the global commodity state information table in real time, wherein the trust evaluation value information comprises commodity addition, identity association records and cross-domain access records which are used as references for the trust evaluation of the commodity;
the global basic information table is stored in a commodity tracing server, and the global identity information table and the global commodity state information table are stored in a block chain information storage server.
Further, the specific implementation steps of the identifier resolution include:
the identification recognizer initiates an identification analysis request, a block chain system node calls an intelligent contract to realize heterogeneous identification system type identification, the intelligent contract is triggered to identify a commodity coding structure, character coding features are utilized for segmentation and inversion, corresponding identification root suffixes are added, so that an object identification is converted into a unique corresponding standard domain name format, and finally, a DNS protocol is used for completing analysis;
the block chain system queries an account book of a corresponding identification system according to the heterogeneous identification type, and directly returns an analysis result under the condition that the analysis result is stored in the account book; under the condition that the relevant analysis records are not inquired, the analysis request is broadcasted in the corresponding identification system channel;
requesting the nodes in the channel of the identification system to become analysis nodes, verifying and selecting the analysis nodes through verification nodes, performing real-time analysis on the selected analysis nodes, adding nodes with higher error threshold limit error rate into an analysis server to perform identification analysis, completing identification analysis service through intelligent contracts of the deployed analysis nodes, and recording analysis results in the form of block chain transaction accounts;
the block chain system returns the analysis result to the identifier recognizer.
Further, the commodity information tracing mechanism specifically comprises the following implementation steps:
collecting production process information of core components of a production manufacturer, and storing a plurality of information such as the number, the type and the date of the core components and the hash value of a core component detection certification file into a block chain so as to facilitate other entities in a supply chain to obtain core component materials and core component production related information;
collecting commodity information of a commodity transaction participant and relevant information related to production of the commodity information and uploading the commodity information to a block chain, such as a part production place, a model, a label, a standard identification code, a serial number, a destination and the like, simultaneously storing relevant materials or production quality detection and supplier qualification certification relevant files into an IPFS distributed database, generating a file, returning a hash value and writing the file and other commodity information into the block chain;
updating operation information of commodities and core components thereof in real time, wherein the operation realizes timely updating of transaction information by setting related intelligent contracts, and the continuity of the information of the core components in a supply chain is realized by inputting and updating the transaction information in such a way, so that information breakage is prevented;
the commodity transaction and the data inquiry authority are controlled, so that the entity participating in the transaction inquires transaction data related to the entity, a commodity information file provided by a seller is checked according to the authority, information provided by other entities not conducting transaction is not checked, and details of core components of the entity are not acquired;
introducing a monitoring mechanism as a node to monitor the uplink and downlink transaction behaviors of the commodity, wherein the monitoring mechanism obtains all transaction information and certification files across entities and is not restricted by authority control;
the commodity label is scanned, the identification recognizer is connected with a commodity tracing server, commodity information on a block chain is inquired, the commodity information comprises inquiry transaction data tracing raw materials, related production and manufacturing information and a detection certification document of the related production and manufacturing information as a returned inquiry result, and the inquiry result is used as a source certificate and is provided for a demand party;
the monitoring mechanism obtains the information of the core components and the merchants such as suppliers, manufacturers, distributors, manufacturers and retailers related to the commodity circulation process through information inquiry, and the core components or commodities can be timely notified to a demand party when problems occur to recall the core components or commodities, so that the loss of each party is reduced.
Further, in the block chain composite tracing process, identity information is registered for the identification recognizer in the commodity tracing server, the identity of the identification recognizer is verified, the commodity tracing server stores the registration information of the identification recognizer in advance, after the identification recognizer is started for the first time, a standard identification code corresponding to a label is obtained according to the label pre-allocated to a commodity by a manufacturer, a commodity code is further obtained, meanwhile, the commodity code recognized by the identification recognizer is sent to the information storage server in the commodity tracing server, the information storage server finds a corresponding block chain interface address according to the commodity code, a corresponding block chain intelligent contract interface is called, and commodity uplink information is inquired.
Further, in the blockchain composite tracing process, the registration process includes:
the commodity tracing server receives a registration request sent by the identifier recognizer, and authenticates the identity of the identifier recognizer through the identity authentication module;
and the commodity tracing server stores the registration information of the identifier recognizer and performs identity authentication and registration on the identifier recognizer sending the registration information.
Furthermore, in the process of block chain composite tracing, the tag is attached to a commodity, the tag is identified and analyzed through an identifier recognizer to obtain a standard identification code of the tag, the standard identification code is generated through analysis in the identifier recognizer and is cached in the identifier recognizer, the identifier recognizer sends the standard identification code to a commodity tracing server, a prestored commodity code is compared in the commodity tracing server, the commodity code corresponding to the standard identification code is compared, the commodity code is converted into a message format corresponding to an information storage server, the commodity code is sent to the information storage server for processing, the commodity code is converted into a standard domain name format, an address corresponding to the commodity code is obtained, and the information storage server calls a block chain intelligent contract interface to perform tracing information query; the commodity codes are used as the unique attribute encryption key entering the information storage server, and different commodity codes correspond to different information storage server access block chain access interface addresses, so that the safety of commodity data is ensured.
On the other hand, the invention provides a block chain composite traceability system, which comprises the following concrete components:
an identity authentication module: the system comprises a global basic information table, a global identity information table and a global commodity state information table, wherein the global basic information table, the global identity information table and the global commodity state information table are used for generating and distributing identity marks and maintaining and managing the global basic information table, the global identity information table and the global commodity state information table;
an identification recognizer: the system is used for identifying the label, analyzing the electronic label of the commodity, storing or comparing the standard identification code and obtaining the commodity code;
the commodity tracing server: the system comprises a global basic information table, a global identity information table and a global commodity state information table, wherein the global basic information table, the global identity information table and the global commodity state information table are used for storing;
an information storage server: the system comprises a block chain manager, a data storage unit and a data processing unit, wherein the data storage unit is used for storing or updating commodity state (operation record) information and is matched with an address of a block chain application interface;
the block chain manager: and storing the index information of the database and the summary information of the user operation records.
In a third aspect, the present invention provides an identifier parsing system for implementing a block chain composite tracing method, where the identifier parsing system is located in an identifier recognizer and is used for identifying and parsing identifiers of commodities and core components thereof, and the specific composition includes:
the intelligent contract realizing device for identification analysis: receiving an identification resolving request of an identification recognizer, triggering an identification resolving intelligent contract to execute and recognize a heterogeneous identification system type, calling a coding resolving intelligent contract to execute and recognize a commodity coding structure according to different identification types, carrying out segmentation and inversion by using character coding characteristics, adding a corresponding identification root suffix, converting the identification of the commodity into a uniquely corresponding standard domain name format, and finally completing resolving by using a DNS protocol;
and (3) identifying and analyzing the querier: the system is used for inquiring the identification analysis result and returning the result to the identification recognizer or broadcasting the analysis request;
an identification analysis server: the system comprises a block chain whole-network verification node, a block chain account book, a block chain management system and a block chain management system, wherein the block chain whole-network verification node is used for connecting the block chain whole-network verification node to select an analysis node, an intelligent contract is deployed for the analysis node to complete identification analysis service, and an analysis result is recorded in a block chain account book form;
a threshold controller: and the method is used for limiting the nodes with higher error rate to join the analysis server for identification analysis.
Advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The invention at least comprises the following beneficial effects:
(1) the invention provides a novel block chain traceability method, which is a composite traceability method, is suitable for industrial entity traceability fields such as industrial internet, internet of things and the like, and more effectively solves the problem of information asymmetry between information service providers and transport providers in the fields.
(2) The block chain composite traceability method adopts the steps of identity authentication, identification control (identification generation, identification and analysis), data chaining inquiry and storage and the like, realizes a block chain composite traceability system, and effectively realizes a commodity traceability process.
(3) The invention effectively generates and distributes the identity identification in the identity authentication module by combining the commodity tracing server and the information storage server of the block chain.
(4) The invention can expand the introduction of a monitoring mechanism, prevent the actions of counterfeiting, fraud and the like, reduce the loss of each party, and ensure the data privacy and safety of each party by controlling the authority of other parties except the authoritative monitoring mechanism without inquiring irrelevant information.
Drawings
FIG. 1 is a block chain composite tracing implementation flow chart of the present invention;
FIG. 2 is a diagram of a composite trace-source blockchain data flow process according to the present invention;
fig. 3 is a schematic diagram of the identifier resolution service according to the present invention.
Detailed Description
In order to clearly illustrate the present invention and make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, so that those skilled in the art can implement the technical solutions in reference to the description text. The technology of the present invention will be described in detail below with reference to the accompanying drawings in conjunction with specific embodiments.
Technical explanation:
the Domain Name System (DNS) is a service of the internet, and can more conveniently access the internet as a distributed database that maps domain names and IP addresses to each other. The DNS uses TCP and UDP ports 53. Currently, the limit for the length of the domain name at each level is 63 characters, and the total length of the domain name cannot exceed 253 characters. The DNS protocol is used to convert domain names into IP addresses (IP addresses may also be converted into corresponding domain name addresses).
Specific example 1:
fig. 1 shows an implementation form of block chain multi-party collaborative cross validation of the present invention, in which a block chain multi-party collaborative cross validation and a composite traceability implementation flow are embodied, and the specific implementation steps include:
step 1: the identity authentication module generates identity identifications for all organizations or nodes (suppliers, enterprises and users) and commodities of the blockchain, and the suppliers, the enterprises and the users carry out identification analysis on key information of inner core components or complete machine products (industrial products) before chain linking so that all the organizations or nodes correspond to the key information of the inner core components or the complete machine products one by one; the commodity can be a core component or a complete machine product and the like, the identity authentication module manages the identity, and generates and distributes the identity by extracting information data in a global basic information table, a global identity information table and a global commodity state information table, wherein the global basic information table: storing a standard identification code corresponding to the commodity electronic tag and a coding address of the standard identification code in the global identity information table for commodity index; global identity information table: storing commodity identity information, a public key corresponding to the identity information and trust evaluation value information; global goods status information table: recording the operation behavior of the commodity in the block chain, wherein the operation behavior comprises commodity addition, identity association record and cross-domain access record, and the operation behavior can be used as reference for the credible evaluation of the commodity; the global basic information table is stored in a commodity tracing server, and the global identity information table and the global commodity state information table are stored in an information storage server of the block chain. The concrete implementation steps comprise:
s11: storing commodity identification, a standard identification code and a digital code corresponding to the commodity identification, and a code address of the digital code in a global identity information table into a global basic information table for commodity indexing, wherein the standard identification code comprises identity authentication information, related address information, source information, user authority information and the like;
s12: storing commodity identity information, a public key corresponding to the identity information and trust evaluation value information in a global identity information table;
s13: and recording the operation behavior of the commodity in the block chain, and updating and recording the operation behavior in the global commodity state information table in real time, wherein the trust evaluation value information comprises commodity addition, identity association records and cross-domain access records, and is used as a reference for the trust evaluation of the commodity.
Step 2: converting key information of each supplier, enterprise and user core component of the block chain or a complete machine product (industrial product) into data with a data format;
step 3: verifying the data before uploading, chaining the key information after the data verification is passed to form a block chain data index and an abstract, storing the processed block chain data index and the abstract into a block chain cache database, and broadcasting the data verification passing result to the whole network;
step 4: and acquiring block chain data after the block chain verification is passed, calling an intelligent contract by a complete machine manufacturer through the block chain to acquire information such as commodity maintenance and the like, establishing a core component information tracing mechanism, and realizing credible acquisition of commodity data to form a block chain composite tracing system and a commodity tracing process.
Wherein the content of the first and second substances,
as shown in fig. 2, the commodity information tracing mechanism specifically includes the following steps:
s41: collecting production process information of core components of a production manufacturer, and storing information such as the number, the type and the date of the core components and the hash of a core component detection certificate file into a block chain together so as to facilitate other entities in a supply chain to obtain core component materials and core component production related information;
s42: uploading core component information: collecting commodity information of a commodity transaction participant and relevant information related to production of the commodity information and uploading the commodity information to a block chain, such as a part production place, a model, a label, a standard identification code, a serial number, a destination and the like, simultaneously storing a material quality detection and supplier qualification certification related file into an IPFS distributed database, and returning a file to be hashed and writing the file and other information of a core part into the block chain;
s43: updating transaction information: updating operation information of commodities and core components thereof in real time, wherein the related operation is realized by setting a related intelligent contract; for example, the core component manufacturer B purchases the material of the supplier a, after receiving the material, the B writes the transaction information into the transaction record by the a using the smart contract, and writes the transaction hash and the information such as the identity information of both parties of the transaction, the transaction content (material information, etc.), the transaction date, the supplier qualification certificate, etc. into the transaction record. B, processing the parts to produce core components, performing quality inspection, storing the core component information into a block chain, and storing quality inspection files into an IPFS distributed database. And the distributor C purchases the core components from the distributor B, and the distributor B updates the transaction information after the transaction is completed. And C, updating the transaction information after the transaction is completed, and if no distributor exists, carrying out the steps from B to C, wherein the transaction steps from C to D can be omitted, namely, the core component is directly sold to D by B under the condition that no C exists. The whole machine manufacturer D processes and manufactures the whole machine product, stores the whole machine product information index and the related abstract into the block chain through quality inspection, uploads a quality inspection file to be stored into the IPFS distributed database, and records the transaction information into the block chain in real time in such a way so as to realize the continuity of the core component information in the supply chain and prevent information breakage;
s44: and (3) authority control: the transaction and data query authority of the core component is controlled, so that entities participating in the transaction query transaction data related to the entities, core component information files provided by sellers are checked, information provided by other entities not conducting the transaction is not checked, and detailed information of the core component cannot be acquired;
s45: a monitoring mechanism is introduced to monitor the transaction behaviors of the commodity supply chain, and the monitoring mechanism obtains all transaction information and certification documents across entities without being restricted by authority control, so that the behaviors of counterfeiting, cheating and the like are prevented;
s46: and (3) information query: by scanning the commodity label, the identification recognizer is connected with the commodity tracing server, feasible information on a block chain is inquired, the feasible information comprises inquiry transaction data tracing raw materials, related production and manufacturing information and a detection certification document thereof as a returned inquiry result, and the inquiry result is used as a source certificate and is provided for a demand party;
s47: the monitoring mechanism obtains the information of the core components and the merchants such as suppliers, manufacturers, distributors, manufacturers and retailers related to the commodity circulation process through information inquiry, and when the core components or commodities have problems, the core components or commodities can be timely notified to a purchasing demand party to recall the core components or the commodities, so that the loss of each party is reduced.
Step 5: and updating and comparing the state of the block chain data and the node corresponding to the data in real time in the tracing process, ensuring the balance of the key information data of commodities in each organization or node of the block chain, and ensuring the safety of the data.
Example 2:
the embodiment provides a block chain composite traceability system for realizing multi-party collaborative cross validation, which specifically comprises the following components:
an identity authentication module: the system comprises a global basic information table, a global identity information table and a global commodity state information table, wherein the global basic information table, the global identity information table and the global commodity state information table are used for generating and distributing identity marks and maintaining and managing the global basic information table, the global identity information table and the global commodity state information table;
an identification recognizer: the system is used for identifying the label, analyzing the electronic label of the commodity, storing or comparing the standard identification code and obtaining the commodity code;
the commodity tracing server: the system comprises a global basic information table, a global identity information table and a global commodity state information table, wherein the global basic information table, the global identity information table and the global commodity state information table are used for storing;
an information storage server: the system comprises a block chain manager, a data storage unit and a data processing unit, wherein the data storage unit is used for storing or updating commodity state (operation record) information and is matched with an address of a block chain application interface;
the block chain manager: and storing the index information of the database and the summary information of the user operation records.
The identification recognizer registers identity information in the commodity tracing server, the identity of the identification recognizer is verified, the commodity tracing server stores the registration information of the identification recognizer in advance, after the identification recognizer is started for the first time, a standard identification code corresponding to a label (electronic label) is obtained according to the label (electronic label) pre-distributed to a commodity by a manufacturer, a commodity code is further obtained, meanwhile, the commodity code recognized by the identification recognizer is sent to the information storage server in the commodity tracing server, the information storage server finds a corresponding block link interface address according to the commodity code, calls a corresponding block link intelligent contract interface, and inquires commodity uplink information. Wherein, the registration process includes:
firstly, a commodity tracing server receives a registration information request sent by an identifier recognizer, and the identity of the identifier recognizer is authenticated through an identity authentication module;
and secondly, the commodity tracing server stores the acquired registration information of the identifier recognizer and performs identity authentication and registration on the identifier recognizer sending the registration information.
The label is attached to a commodity, the identification is identified and analyzed through an identification identifier to obtain a standard identification code of the label, the standard identification code is generated through analysis in the identification identifier and is cached in the identification identifier, the identification identifier sends the standard identification code to a commodity tracing server, a prestored commodity code is compared in the commodity tracing server to find a commodity code corresponding to the standard identification code, the commodity code is converted into a message format corresponding to an information storage server and is sent to the information storage server to be processed, the commodity code is converted into a proper domain name format (standard domain name format), an address corresponding to the commodity code is obtained, and the information storage server calls a block chain intelligent contract interface to perform tracing information query; the commodity codes are used as the unique attribute encryption key entering the information storage server, and different commodity codes correspond to different information storage server access block chain access interface addresses, so that the safety of commodity data is ensured.
Example 3:
this embodiment provides an identifier parsing system for implementing a block chain composite tracing method, as shown in fig. 3, the identifier parsing system is located in an identifier recognizer, and is used for identifying and parsing identifiers of commodities and core components thereof, and the specific components include:
the intelligent contract realizing device for identification analysis: receiving an identification resolving request of an identification recognizer, triggering an identification resolving intelligent contract to execute and recognize a heterogeneous identification system type, calling a coding resolving intelligent contract to execute and recognize a commodity coding structure according to different identification types, carrying out segmentation and inversion by using character coding characteristics, adding a corresponding identification root suffix, converting an identification of an object into a uniquely corresponding standard domain name format, and finally completing resolving by using a DNS protocol;
and (3) identifying and analyzing the querier: the system is used for inquiring the identification analysis result and returning the result to the identification recognizer or broadcasting the analysis request;
an identification analysis server: the system comprises a block chain whole-network verification node, a block chain account book, a block chain management system and a block chain management system, wherein the block chain whole-network verification node is used for connecting the block chain whole-network verification node to select an analysis node, an intelligent contract is deployed for the analysis node to complete identification analysis service, and an analysis result is recorded in a block chain account book form;
a threshold controller: and the method is used for limiting the nodes with higher error rate to join the analysis server for identification analysis.
Wherein the content of the first and second substances,
as shown in fig. 3, the identifier parsing structure diagram of the present invention includes the following specific steps:
(1) the identification recognizer initiates an identification analysis request, a block chain system node calls an intelligent contract to realize heterogeneous identification system type identification, the intelligent contract is triggered to identify a commodity coding structure, character coding features are utilized for segmentation and inversion, corresponding identification root suffixes are added, so that an object identification is converted into a unique corresponding standard domain name format, and finally, a DNS protocol is used for completing analysis;
(2) the block chain system inquires an account book of a corresponding identification system according to the heterogeneous identification type, and if the identification analysis result is stored in the account book, the block chain system directly returns the analysis result; if the relevant analysis records are not inquired, broadcasting the analysis request in the corresponding identification analysis channel;
(3) requesting the nodes in the channel of the identification system to become analysis nodes, verifying and selecting the analysis nodes through verification nodes, performing real-time analysis on the selected analysis nodes, adding nodes with higher error threshold limit error rate into an analysis server to perform identification analysis, completing identification analysis service through intelligent contracts of the deployed analysis nodes, and recording analysis results in the form of block chain transaction accounts;
two situations of analysis errors mainly exist in the process of identification analysis:
1) setting maximum response time for the identification analysis system, and judging that the analysis service has errors if the analysis node can not complete the analysis within the response time;
2) and when the analysis result verified by the endorsement node is inconsistent with the analysis node, the analysis is judged to be wrong.
(4) The block chain system returns the analysis result to the identifier recognizer.
For the system embodiment, since it can be used as the generating device of the method embodiment, the description is relatively simple, and relevant points and operation processes can be referred to the partial description of the method embodiment. The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. Applications, modifications and variations of the multi-party collaborative cross-validation and composite traceability method of the present invention will be apparent to those skilled in the art.
The embodiments described above are presented to enable a person having ordinary skill in the art to make and use the invention. It will be readily apparent to those skilled in the art that various modifications to the above-described embodiments may be made, and the generic principles defined herein may be applied to other embodiments without the use of inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications to the present invention based on the disclosure of the present invention within the protection scope of the present invention.
Claims (10)
1. A block chain composite tracing method is characterized by comprising the following concrete implementation steps:
the identity authentication module generates identity identifications for all organizations or nodes of the block chain and commodities of the organizations or nodes, and before chaining, identification analysis is carried out on the key information of the commodities in all organizations or nodes of the block chain, so that the key information of the commodities in all organizations or nodes corresponds to one another, wherein the commodities are core components or complete machine products;
the key information of the commodity is converted into data with a data format in each organization or node of the block chain;
verifying the data and the data format thereof before uplink, uplink the key information of the commodity after the verification is passed to form a block chain data index and an abstract, storing the processed block chain data index and the abstract into a block chain cache database, and broadcasting the result of passing the data verification to the whole network;
acquiring block chain data after the block chain verification passes, and meanwhile, acquiring commodity state information by a complete machine manufacturer by calling an intelligent contract, establishing a commodity information tracing mechanism, acquiring commodity data in real time, and realizing a commodity tracing process;
and updating and comparing the data of the block chain and the state of the node corresponding to the data in real time in the tracing process, and ensuring the balance of the key information data of the commodities in each organization or node of the block chain.
2. The blockchain composite tracing method according to claim 1, wherein the identity authentication module manages the identity identifier by extracting information data in a global basic information table, a global identity information table, and a global commodity state information table to generate and distribute the identity identifier, and the specific implementation steps include:
storing commodity identification, a standard identification code and a digital code corresponding to the commodity identification, and a code address of the digital code in a global identity information table into a global basic information table for commodity indexing, wherein the standard identification code comprises identity authentication information, related address information, source information and user right information;
storing commodity identity information, a public key corresponding to the identity information and trust evaluation value information in a global identity information table;
recording the operation behavior of the commodity in the block chain, and updating and recording the operation behavior in the global commodity state information table in real time, wherein the trust evaluation value information comprises commodity addition, identity association records and cross-domain access records which are used as references for the trust evaluation of the commodity;
the global basic information table is stored in a commodity tracing server, and the global identity information table and the global commodity state information table are stored in a block chain information storage server.
3. The method of claim 1, wherein the identifier parsing specifically comprises:
the identification recognizer initiates an identification analysis request, a block chain system node calls an intelligent contract to realize heterogeneous identification system type identification, the intelligent contract is triggered to identify a commodity coding structure, character coding features are utilized for segmentation and inversion, corresponding identification root suffixes are added, so that an object identification is converted into a unique corresponding standard domain name format, and finally, a DNS protocol is used for completing analysis;
the block chain system queries an account book of a corresponding identification system according to the heterogeneous identification type, and directly returns an analysis result under the condition that the analysis result is stored in the account book; under the condition that the relevant analysis records are not inquired, the analysis request is broadcasted in the corresponding identification system channel;
requesting the nodes in the channel of the identification system to become analysis nodes, selecting the analysis nodes through verification of verification nodes, completing identification analysis service through intelligent contracts of the deployment analysis nodes, and recording analysis results in the form of block chain transaction accounts;
the block chain system returns the analysis result to the identifier recognizer.
4. The method as claimed in claim 3, wherein the selecting of the parsing node is performed in real time, and the adding of the node with higher error rate is limited by an error threshold in the identifier parsing process.
5. The method for block chain composite tracing according to claim 1, wherein the commodity information tracing mechanism comprises the following steps:
collecting the production process information of the core component of the production manufacturer, and storing the information of the number, the type and the date of the core component and the hash value of the core component detection certification file into a block chain;
collecting commodity information of a commodity transaction participant and relevant information related to production of the commodity information and uploading the commodity information to a block chain, storing relevant materials or production quality detection and supplier qualification certification relevant files into an IPFS distributed database, and generating a file and returning a hash value to write the hash value and other commodity information into the block chain;
updating operation information of commodities and core components thereof in real time, wherein the operation realizes timely updating of transaction information by setting related intelligent contracts;
the commodity transaction and the data inquiry authority are controlled, so that entities participating in the transaction inquire transaction data related to the entities, and commodity information files provided by sellers are checked according to the authority;
introducing a monitoring mechanism as a node to monitor the uplink and downlink transaction behaviors of the commodity, wherein the monitoring mechanism obtains all transaction information and certification files across entities and is not restricted by authority control;
by scanning the commodity label, the identification recognizer is connected with the commodity tracing server, and commodity information on the block chain is inquired, wherein the commodity information comprises inquiry transaction data tracing raw materials, related production and manufacturing information and a detection certification document thereof as a returned inquiry result.
6. The method for block chain composite tracing according to claim 1, wherein in the block chain composite tracing process, identity information is registered for the identifier recognizer in the commodity tracing server, the identity of the identifier recognizer is verified, the commodity tracing server stores the registration information of the identifier recognizer in advance, after the identifier recognizer is started for the first time, a standard identification code corresponding to the label is obtained according to the label pre-allocated to the commodity by a manufacturer, and then a commodity code is obtained, meanwhile, the commodity code recognized by the identifier recognizer is sent to the information storage server in the commodity tracing server, the information storage server finds a corresponding block chain interface address according to the commodity code, and calls a corresponding block chain intelligent contract through an interface to query relevant information on the commodity chain.
7. The blockchain composite tracing method according to claim 6, wherein in the blockchain composite tracing process, the registration procedure includes:
the commodity tracing server receives a registration information request sent by the identifier recognizer, and authenticates the identity of the identifier recognizer through the identity authentication module;
and the commodity tracing server stores the registration information of the identifier recognizer and performs identity authentication and registration on the identifier recognizer sending the registration information.
8. The method of claim 6, wherein during the blockchain composite tracing process, the tag is attached to the merchandise, the mark is identified and analyzed by the mark identifier to obtain a standard identification code thereof, the standard identification code is analyzed in the mark identifier, and buffered in the identifier recognizer, the identifier recognizer sends the standard identification code to the commodity tracing server, comparing the pre-stored commodity codes in the commodity tracing server, finding out the commodity code corresponding to the standard identification code, converting the commodity code into the message format corresponding to the information storage server, and sends the commodity code to the information storage server for processing, converts the commodity code into a standard domain name format, obtaining an address corresponding to the commodity code, calling a block chain intelligent contract interface by the information storage server, and performing source tracing information query; the commodity codes are used as the unique attribute encryption keys entering the information storage server, and different commodity codes correspond to different information storage server access block chain access interface addresses.
9. A block chain composite traceability system is characterized in that the concrete composition structure comprises:
an identity authentication module: the system comprises a global basic information table, a global identity information table and a global commodity state information table, wherein the global basic information table, the global identity information table and the global commodity state information table are used for generating and distributing identity marks and maintaining and managing the global basic information table, the global identity information table and the global commodity state information table;
an identification recognizer: the system is used for identifying the label, analyzing the electronic label of the commodity, storing or comparing the standard identification code and obtaining the commodity code;
the commodity tracing server: the system comprises a global basic information table, a global identity information table and a global commodity state information table, wherein the global basic information table, the global identity information table and the global commodity state information table are used for storing;
an information storage server: the system comprises a block chain manager, a link data storage device and a link block chain application interface, wherein the link data storage device is used for storing or updating commodity state information and is matched with an address of the link block chain application interface;
the block chain manager: the index information used for storing the database and the summary information of the user operation records.
10. The utility model provides an identification analytic system of realizing block chain compound traceability method which characterized in that, identification analytic system is arranged in the identification recognizer for the identification and the analysis of commodity and its core component, specifically the constitution includes:
the intelligent contract realizing device for identification analysis: receiving an identification resolving request of an identification recognizer, triggering an identification resolving intelligent contract to execute and recognize a heterogeneous identification system type, calling a coding resolving intelligent contract to execute and recognize a commodity coding structure according to different identification types, carrying out segmentation and inversion by using character coding characteristics, adding a corresponding identification root suffix, converting a standard identification code of a commodity into a uniquely corresponding standard domain name format, and finally completing resolution by using a DNS protocol;
and (3) identifying and analyzing the querier: the system is used for inquiring the identification analysis result and returning the result to the identification recognizer or broadcasting the analysis request;
an identification analysis server: the system comprises a block chain whole-network verification node, a block chain account book, a block chain management system and a block chain management system, wherein the block chain whole-network verification node is used for connecting the block chain whole-network verification node to select an analysis node, an intelligent contract is deployed for the analysis node to complete identification analysis service, and an analysis result is recorded in a block chain account book form;
a threshold controller: and the method is used for limiting the nodes with higher error rate to join the analysis server for identification analysis.
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