Summary of the invention
The object of the present invention is to provide a kind of food safety trace back method and system based on block chain, existing in order to solveThere is the above problem present in technology.
In order to achieve the above object, specific solution of the invention is a kind of product data retrospect side based on block chainMethod, comprising:
Product data to be stored are obtained, the product data include describing the product indicia of the product data；
The product data are packaged into data packet, and generate the identifying code of the data packet；
Data packet is uploaded to the first block chain, obtains first storage address of the data packet on the first block chain；
The product indicia, identifying code and the first storage address are uploaded into the second block chain, obtained in the second block chainOn the second storage address；And
Second storage address is disclosed to provide information query service.
Preferably, the information query service includes:
A graphic code is generated according to the second storage address, the graphic code corresponds in the second storage address of the second block chainThe product indicia, identifying code and the first storage address stored.
Preferably, the information query service further include:
The request that product data retrospect is obtained from requesting party is received, the management end sends corresponding figure to requesting partyCode；
Requesting party's scanning figure shape code simultaneously obtains the second storage address；
The product indicia, identifying code and the first storage of the corresponding storage of the second block chain are obtained by the second storage addressAddress.
The data packet that the first block chain corresponding position is stored is obtained according to the first storage address；
Data packet is verified and returns to verification result.
Preferably, the information query service includes:
Receive multiple requests that product data retrospect is obtained from requesting party；
Determine the second storage address corresponding to each request；
Multiple product indicias, the identifying code and first of the corresponding storage of the second block chain are obtained by the second storage addressStorage address.
The data packet that the first block chain corresponding position is stored is obtained according to multiple first storage address；
Data packet is verified and returns to verification result.
Preferably, data packet is verified and returns to verification result, comprising:
The data packet is verified according to identifying code, judges whether identifying code is consistent with the data packet；
When identifying code is consistent with the data packet, decompresses the data packet and obtain product data.
Preferably, the first block chain is privately owned chain, and the second block chain is publicly-owned chain.
Preferably, the collection process of the product data includes:
The product information produced, in logistics progress is obtained by internet of things equipment, industrial sensor；
The product information is summarized, is stored as product data.
Preferably, the collection process of the product data further include:
Pass through video image in visual sensor acquisition production, transportational process；
It identifies the state of product in video image, and the Product Status is summarized, is stored as product data.
Preferably, after the acquisition product data, product data are analyzed, comprising:
Judge whether product is in abnormality in production, transportational process by the product data；
If product is in abnormality, then warning information is generated；
The warning information is stored into product data.
On the other hand, the present invention also provides a kind of product data traceability systems based on block chain, comprising: management end, visitorFamily end, the first block chain and the second block chain,
Product data are packaged into data packet to obtain product data and product indicia to be stored by the management endAnd generate the identifying code of the data packet；
The data packet that the first block chain is uploaded to receiver management terminal, and generate the first storage on the first block chainAddress；
Product indicia, identifying code and the first storage address that the second block chain is uploaded to receiver management terminal, and it is rawAt the second storage address on the second block chain；
The client obtains the request of product data retrospect to receive from requesting party, determines corresponding to each requestThe second storage address, pass through the second storage address and obtain multiple product indicias of the corresponding storage of the second block chain, verifyingCode and the first storage address obtain the data packet that the first block chain corresponding position is stored, root according to multiple first storage addressThe data packet is verified according to identifying code, the data packet is decompressed and obtains product data.
The present invention compared with the existing technology, has the following advantages and beneficial effects:
1, system of the invention can protect letter using information security on block chain, traceable and be not easy the characteristic distortedBreath is not stolen and distorts, and product information can be made to keep transparent disclosure in face of the public and supervision department, strengthens prisonThe dynamics of pipe improves the brand public credibility of enterprise.
2, system of the invention can use technology of Internet of things, artificial intelligence and big data analysis means, be to old enterpriseThe supplement and update of Business Process Management platform, system can be docked with business event management process platform, reduce enterprise operationCost and the operational efficiency and engineering reliability for improving Business Process Management.
3, each operation flow link information of the synchronous product of the present invention, provides close friend to the public and supervision department and connectsMouthful, making the public and supervision department only needs private terminal equipment and network that can trace to product, completely views productEntire production and transportation data, improve the public credibility of enterprise and the satisfaction satisfaction of consumer.
4, the present invention uses the first block chain and the second block chain, and the first block chain stores product data and the second block chainOpen retrieval is provided, the response speed of retrieval is improved, reduces the cost of storage, ensured the safety and secrecy of product dataProperty.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, completeSite preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based onEmbodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every otherEmbodiment shall fall within the protection scope of the present invention.
In the following description, specific embodiments of the present invention will refer to the operation as performed by one or multi-section computerThe step of and symbol illustrate, unless otherwise stating clearly.Therefore, these steps and operation be will appreciate that, mentioned for several times wherein havingIt include by representing with the computer disposal list of the electronic signal of the data in a structuring pattern to be executed by computerMember is manipulated.At this manipulation transforms data or the position being maintained in the memory system of the computer, it can match againSet or in addition change in a manner familiar to those skilled in the art the running of the computer.The maintained data knot of the dataStructure is the provider location of the memory, has the specific feature as defined in the data format.But the principle of the invention is with above-mentionedText illustrates, is not represented as a kind of limitation, those skilled in the art will appreciate that plurality of step as described below andOperation also may be implemented in hardware.
Product data retroactive method and system based on block chain of the invention may be provided in any electronic equipment, useThe data generated in the Business Process Management to user carry out summing up acquisition, and the product that above-mentioned Business Process Management is generatedData are stored to block platform chain, so that client-side is retrieved and traced to product data.The electronic equipment include butIt is not limited to wearable device, helmet, medical treatment & health platform, personal computer, server computer, hand-held or on kneeEquipment, mobile device (such as mobile phone, personal digital assistant (PDA, Personal Digital Assistant), mediaPlayer etc.), multicomputer system, consumer electronic devices, minicomputer, mainframe computer including above-mentioned any systemSystem or the distributed computing environment of equipment, etc..The electronic equipment be preferably used for carry out business data processing management end andThe management end server of client, the operation flow based on block platform chain and acquisition data and carries out product dataThe storage of block chain, and client can inquire product data so as to preferably improve the efficiency of business data processing from block chainAnd the transparency of business data processing.
Please refer to Fig. 1, the process of the first embodiment of the position Fig. 1 product data retroactive method of the invention based on block chainFigure.Above-mentioned electronic equipment can be used to be implemented for the product data retroactive method of the present embodiment, the product data of the present embodimentRetroactive method includes:
Step 101, product data to be stored are obtained, the product data include the product mark for describing the product dataShow；
Step 102, the product data are packaged into data packet, and generate the identifying code of the data packet；
Step 103, data packet is uploaded to the first block chain, obtains first storage of the data packet on the first block chainAddress；
Step 104, the product indicia, identifying code and the first storage address are uploaded into the second block chain, obtained theThe second storage address on two block chains；And
Step 105, the second storage address is disclosed to provide information query service.
The following detailed description of the detailed process of each step of the product data retroactive method based on block chain of the present embodiment.
In step s101, the management end of operation flow obtains product data to be stored.Wherein product data are enterpriseAll data generated in the operation flows such as production, logistics, sale, it is preferred that product data are product type, product each zeroParts data, product composition, product inspection data, logistics time, place, state, dealer, commercial paper, trade contract etc..Product indicia is the sequence number for describing the storage record of the said goods data acquisition system, which can be the batch number of product,Pass through system automatically generated.
In step s 102, product data are packaged into data packet by management end, and it includes but is not limited to compression, envelope that data, which are packaged,The modes such as dress, and the identifying code of data packet is formed by way of encryption, cipher mode includes symmetric cryptography and asymmetric encryptionAlgorithm, hash algorithm and digital digest, digital signature etc..Can use following common algorithms: MD5, SHA-256, SHA-512,RSA, elliptic curve, national commercial cipher algorithm, DSA etc..
In step s 103, data packet is uploaded to the first block chain by management end, obtains the data packet in the first block chainOn the first storage address.Data packet upload is transmitted by computer network.For assuring data security, the first block chainIt is only called for management end for privately owned chain and data exchange operation.
Preferably, interspace file system IPFS (InterPlanetary File System) can be used in the first block chain.Interspace file system is the distributed protocol of a kind of content addressable, versioned, point-to-point hypermedia.Come only using multiple HashThe content of one one data block of identification, corresponds to cryptographic Hash reference document by file content.
After data packet is transferred to interspace file system, deposited by the cryptographic Hash of the data packet as the first of data packetAddress is stored up, management end can be retrieved by the cryptographic Hash of the data packet, the data packet being invoked in interspace file system.
Step 104, the product indicia, identifying code and the first storage address are uploaded to the second block chain by management end, are obtainedTake the second storage address on the second block chain.Management end passes through computer network and the second block chain link.Second blockChain is retrieved as alliance's chain disclosed in a pair of of user for retrieval end.
Preferably, the second block chain uses Hyper Ledger fabric framework, can pass through the card to alliance chain memberBook management defines which retrieval end can retrieve the data stored in the second block chain.When this record product indicia,Identifying code and the first storage address are transferred to after the second block chain, the cryptographic Hash recorded by this article recorded as this article theTwo storage address.
Step 105, management end discloses the second storage address to provide information query service.During disclosure, management endA graphic code is generated according to the second storage address, which can be that QR code, two dimensional code etc. are the read mode of terminal device.Graphic code is corresponding with the cryptographic Hash of data record of storage product indicia, identifying code and the first storage address.
Can be completed in this way product data retroactive method of the present embodiment based on block chain data cochain and update it is completePortion's process.
Referring to figure 2., Fig. 2 is the process of the second embodiment of the product data retroactive method of the invention based on block chainFigure.Above-mentioned electronic equipment can be used to be implemented for the product data retroactive method of the present embodiment, the product data of the present embodimentRetroactive method includes information querying flow:
Step 201, the request that product data retrospect is obtained from requesting party is received, the management end sends phase to requesting partyThe graphic code answered.
Step 202, requesting party's scanning figure shape code and the second storage address of acquisition；
Step 203, by the second storage address obtain the product indicia of the corresponding storage of the second block chain, identifying code andFirst storage address.
Step 204, the data packet that the first block chain corresponding position is stored is obtained according to the first storage address；
Step 205, data packet is verified and returns to verification result.
Product data retroactive method the following detailed description of the present embodiment includes the specific stream of each step of information querying flowJourney.
In step 201, user sends inquiry request by client first, and management end receives the backward client of requestSend corresponding product two dimensional code.It preferably, is the accuracy for guaranteeing the retrieval of product two dimensional code, user can be by sending product typeNumber or the mode of batch number retrieve corresponding product two dimensional code.
In step 202, client is scanned after receiving the product two dimensional code that management end is sent, and obtains the product batchSecondary number the second storage address.
In step 203, after obtaining the second storage address, user can be chosen whether in client through the second storage groundThe data on the second block chain are read in location, and product indicia, identifying code and the are obtained after reading the corresponding data of the second block chainOne storage address.
In step 204, user can further obtain the data packet of the batch of product by the first block chain.It is preferred that, the first block chain is interspace file system IPFS, and client can be retrieved by the cryptographic Hash of the data packet, is invoked at interspaceData packet in file system.
In step 205, after identifying code is compared user with data packet, data packet is unziped it, is producedProduct data, manner of decryption include symmetric cryptography and rivest, shamir, adelman, hash algorithm and digital digest, digital signature etc..It canTo use following common algorithms: MD5, SHA-256, SHA-512, RSA, elliptic curve, national commercial cipher algorithm, DSADeng.
After data packet decompression, the product type of product, each component number evidence of product, product composition, product both can getThe data such as inspection data, logistics time, place, state, dealer, commercial paper, trade contract.
Referring to figure 3., Fig. 3 is the process of the 3rd embodiment of the product data retroactive method of the invention based on block chainFigure.Above-mentioned electronic equipment can be used to be implemented for the product data retroactive method of the present embodiment, the product data of the present embodimentRetroactive method includes another information querying flow:
Step 301, multiple requests that product data retrospect is obtained from requesting party are received；
Step 302, the second storage address corresponding to each request is determined；
Step 303, multiple product indicias, the verifying of the corresponding storage of the second block chain are obtained by the second storage addressCode and the first storage address.
Step 304, the data packet that the first block chain corresponding position is stored is obtained according to multiple first storage address；
Step 305, data packet is verified and returns to verification result.
Product data retroactive method the following detailed description of the present embodiment includes the specific stream of each step of information querying flowJourney.
In step 301, when user user needs batch query product data, inquiry is sent by client first and is askedIt asks, after management end receives request, the permission of user is verified, determines that user possesses the permission of batch query.Preferably,For the accuracy for guaranteeing product data retrieval, user can be retrieved accordingly by way of Batch sending product type or batch numberProduct data.
In step 302, management end determines corresponding the second storage address of product after confirming user right.
In step 303, after obtaining the second storage address, user can be chosen whether in client through the second storage groundThe data on the second block chain are read in location, and product indicia, identifying code and the are obtained after reading the corresponding data of the second block chainOne storage address.
In step 304, user can further obtain the data packet of the batch of product by the first block chain.It is preferred that, the first block chain is interspace file system IPFS, and client can be retrieved by the cryptographic Hash of the data packet, is invoked at interspaceData packet in file system.
In step 305, after identifying code is compared user with data packet, data packet is unziped it, is producedProduct data, manner of decryption include symmetric cryptography and rivest, shamir, adelman, hash algorithm and digital digest, digital signature etc..It canTo use following common algorithms: MD5, SHA-256, SHA-512, RSA, elliptic curve, national commercial cipher algorithm, DSADeng.
Referring to FIG. 4, Fig. 4 is a kind of system architecture diagram of the product data traceability system based on block chain of the present invention,It include: management end 2, client 1,3 and of the first block chain using a kind of product data traceability system based on block chain of the present inventionSecond block chain 4,
Management end 2 is packaged into data packet simultaneously to obtain product data and product indicia to be stored, and by product dataGenerate the identifying code of the data packet；
The data packet that first block chain 3 is uploaded to receiver management terminal, and generate the first storage ground on the first block chainLocation；
Product indicia, identifying code and the first storage address that second block chain 4 is uploaded to receiver management terminal, and generateThe second storage address on second block chain 4；
Client 1 obtains the request of product data retrospect to receive from requesting party, determines corresponding to each requestSecond storage address obtains multiple product indicias, the identifying code of the corresponding storage of the second block chain 4 by the second storage addressWith the first storage address, the data packet that 3 corresponding position of the first block chain is stored is obtained according to multiple first storage address, according toIdentifying code verifies the data packet, decompresses the data packet and obtains product data.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the inventionWithin mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.