CN116071090A - Product production information traceability system based on block chain - Google Patents
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Abstract
The invention discloses a product production information tracing system based on a block chain, relates to the technical field of product information tracing, and solves the technical problems that in the prior art, product production information is easy to tamper in a data center and a product transportation process, and data safety cannot be guaranteed; the invention comprises a block chain module, a plurality of authorization nodes and query nodes which are connected with the block chain module; after the production information and the transportation flow information are acquired, the invention provides a method for acquiring the production information and the transportation flow information; the block chain module calculates hash values corresponding to the production information and the transportation information; after the product is transported, mapping the hash values of the production information and the transportation information into two-dimension codes, and calling corresponding data when the query node scans the two-dimension codes; the invention can ensure the safety of production information and the safety standard of the transportation flow through the block chain technology, thereby ensuring the quality of products and improving the user experience.
Description
Technical Field
The invention belongs to the field of product information tracing, relates to a product production information tracing technology based on a block chain, and in particular relates to a product production information tracing system based on a block chain.
Background
As the fake making means are higher and higher, people can hardly effectively verify the authenticity of the information of the purchased product, so that the purchased product is a fake product, the quality of the product is not guaranteed, and therefore, the tracing of the production information of the product is a very important research project.
The prior art (the invention patent application with publication number of CN 110414642A) discloses an agricultural product production information traceability system based on two-dimension codes and a two-dimension code generation method, wherein all production information of agricultural products is extracted from an internet of things production management system data center through the two-dimension codes, so that the cheating behavior that the manual input of the agricultural product information is tamper and deletion is prevented, and the accuracy and the authenticity of the agricultural product information are improved. In the prior art, the production information of the product is stored in a data center and is screened and obtained through a remote server, but the production information of the product in the data center and the product transportation process is easy to tamper, and the data security cannot be ensured; therefore, there is a need for a blockchain-based product production information traceability system.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art; therefore, the invention provides a product production information tracing system based on a block chain, which is used for solving the technical problems that the product production information is easy to be tampered and the data safety cannot be ensured in the data center and the product transportation process in the prior art.
In order to achieve the above object, a first aspect of the present invention provides a blockchain-based product production information tracing system, which includes a blockchain module, and a plurality of authorization nodes and query nodes connected with the blockchain module;
acquiring product production information and transportation flow information, and uploading the product production information and the transportation flow information to a block chain module; the block chain module calculates a hash value of the product production information and establishes an association relation between the hash value and the product production information;
the block chain module establishes a connection relation with the authorization node based on the transportation flow information, and corresponding transportation information is input through the authorization node; establishing an association relation between the transportation information and the corresponding hash value;
after the transportation flow is completed, the block chain module integrates the hash values corresponding to the product production information and the transportation information into a data sequence; the query node obtains information by scanning a two-dimensional code generated based on the data sequence.
Preferably, the blockchain module is respectively in communication connection with the authorization node and the query node; the authorization node and the query node are both in communication connection with the intelligent terminal, and the intelligent terminal comprises a mobile phone or a computer;
the authorization node verifies the reliability of the intelligent terminal connected with the authorization node based on the transportation flow information; the query node is used for identifying query information sent by the intelligent terminal connected with the query node.
Preferably, the product production information and the formulated transportation flow information are obtained from the product manufacturer; the production information and the transportation flow information of the product are confirmed and then uploaded to a block chain module; the transportation flow information comprises a carrier, a carrier and a transportation route.
Preferably, after receiving the product production information, the blockchain module calculates a hash value of the product production information, and establishes an association relationship between the hash value and the corresponding product production information, including:
identifying product production information; wherein, the product production information comprises a batching table, a production place, an environment and a date;
splicing all sub-information of the product production information to generate a product information sequence, calculating a hash value of the product information sequence, and establishing an association relation between the hash value and the product production information; or calculating the hash value of each piece of sub-information, and establishing the association relation between each hash value and the corresponding piece of sub-information.
Preferably, the blockchain module establishes a connection relationship with the authorized node based on the transportation flow information, and obtains the transportation information through the connected authorized node, including:
identifying the current transportation flow of the product based on the transportation flow information, and establishing a connection relationship between the blockchain module and an authorization node corresponding to the current transportation flow;
and reading the transportation information through the connected authorized node and sending the transportation information to the block chain module.
Preferably, the blockchain module verifies the transportation information and calculates a hash value of the transportation information, including:
extracting transportation flow information, and verifying whether the transportation information meets the requirements or not based on the transportation flow information; if yes, calculating a hash value of the transportation information; if not, confirming, and calculating the hash value of the transportation information after the confirmation is passed;
and establishing an association relation between the hash value and the corresponding transportation information, and storing the hash value and the transportation information.
Preferably, the blockchain module analyzes and judges the transportation flow, and when the transportation flow is finished, the hash values of the product production information and the transportation information are spliced into a data sequence; and
and mapping the data sequence into a two-dimensional code through a two-dimensional code generation technology, and attaching the two-dimensional code to a product.
Preferably, the query node scans the two-dimensional code and identifies a data sequence in the uploaded two-dimensional code to the blockchain module; the block chain module analyzes the data sequence to obtain hash values corresponding to the product production information and the transportation information;
and the block chain module is used for calling the product production information or the transportation information corresponding to the hash value according to the association relation and feeding the product production information or the transportation information back to the query node.
Compared with the prior art, the invention has the beneficial effects that: after the production information and the transportation flow information are acquired, the invention provides a method for acquiring the production information and the transportation flow information; the block chain module calculates hash values corresponding to the production information and the transportation information; after the product is transported, mapping the hash values of the production information and the transportation information into two-dimension codes, and calling corresponding data when the query node scans the two-dimension codes; the invention can ensure the safety of production information and the safety standard of the transportation flow through the block chain technology, thereby ensuring the quality of products and improving the user experience.
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In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the working steps of the present invention.
Detailed Description
The technical solutions of the present invention will be clearly and completely described in connection with the embodiments, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, an embodiment of the first aspect of the present invention provides a blockchain-based product production information tracing system, which includes a blockchain module, and a plurality of authorization nodes and query nodes connected with the blockchain module; acquiring product production information and transportation flow information, and uploading the product production information and the transportation flow information to a block chain module; the block chain module calculates a hash value of the product production information and establishes an association relation between the hash value and the product production information; the block chain module establishes a connection relation with the authorization node based on the transportation flow information, and corresponding transportation information is input through the authorization node; establishing an association relation between the transportation information and the corresponding hash value; after the transportation flow is completed, the block chain module integrates the hash values corresponding to the product production information and the transportation information into a data sequence; the query node obtains information by scanning a two-dimensional code generated based on the data sequence.
In the prior art, when tracing production information, the production information is generally stored in a data center, and a user can call the corresponding production information through the data center when scanning the two-dimensional code, so that the user can inquire. In the prior art, production information is easy to modify in a data center or a transportation process, and the safety of the production information cannot be ensured.
After the production information and the transportation flow information are acquired, the invention provides a method for acquiring the production information and the transportation flow information; the block chain module calculates hash values corresponding to the production information and the transportation information; after the product is transported, the hash values of the production information and the transportation information are mapped into two-dimension codes, and the query node scans the two-dimension codes and can call corresponding data. The invention can ensure the safety of production information and the safety standard of the transportation flow through the block chain technology, thereby ensuring the quality of products and improving the user experience.
In the invention, the block chain module is respectively in communication connection with the authorization node and the query node; the authorization node and the query node are both in communication connection with the intelligent terminal, and the intelligent terminal comprises a mobile phone or a computer; the authorization node verifies the reliability of the intelligent terminal connected with the authorization node based on the transportation flow information; the query node is used for identifying query information sent by the intelligent terminal connected with the query node.
The block chain module is established based on a block chain technology and is mainly used for data storage and data processing, product production information and transportation flow information are obtained from a product manufacturer, the transportation information of the product is also obtained through an authorization node, and the product manufacturer can upload the product production information and the transportation flow information through the authorization node. The authorization node is specifically a transfer server, is authorized by the blockchain module, is connected with the intelligent terminal, and acquires data from the intelligent terminal and uploads the data to the blockchain module. The query node is also a transit server and is used for relieving data processing pressure, and the query node is also connected with the intelligent terminal and is mainly used for processing query tasks of users.
The invention obtains the product production information from the product manufacturer and the formulated transportation flow information; and the product production information and the transportation flow information are confirmed and then uploaded to the block chain module. The production information of the product can be self-tidied and uploaded by a product manufacturer, or can be directly acquired by various data sensors and then uploaded. The uploading of the transportation flow information is the same, and the transportation flow information comprises a carrier, a transportation route and the like, and is mainly used for standardizing the transportation of the product, avoiding the replacement of the product in the transportation process and ensuring the quality of the product.
In a preferred embodiment, the blockchain module calculates a hash value of the product production information after receiving the product production information, and establishes an association relationship between the hash value and the corresponding product production information, and the method includes: identifying product production information; splicing all sub-information of the product production information to generate a product information sequence, calculating a hash value of the product information sequence, and establishing an association relation between the hash value and the product production information; or calculating the hash value of each piece of sub-information, and establishing the association relation between each hash value and the corresponding piece of sub-information.
In order to ensure the safety of the product production information, the blockchain module encrypts the product production information, verifies various links through ciphertext data (namely hash values in the invention), and feeds back the actual product production information to the intelligent terminal only when the product is finally inquired. The product production information of the embodiment includes information focused by users such as a batching table, a production place, an environment, a date and the like, and the product production information is consistently stored in the blockchain module.
This embodiment has two ways in calculating the hash value: one is to splice all sub-information in the product production information before hash calculation to generate a product information sequence, such as splicing a batching table, a production place, an environment and a date in sequence, wherein the corresponding product information sequence is [ the batching table, the production place, the environment and the date ], and then calculating the hash value of the product information sequence; another is to calculate the hash value of each sub-information separately and then splice several hash values together in order. Obviously, two modes are selected according to actual scenes.
In a preferred embodiment, the blockchain module establishes a connection relationship with the authorized node based on the transportation flow information, and obtains the transportation information through the connected authorized node, including: identifying the current transportation flow of the product based on the transportation flow information, and establishing a connection relationship between the blockchain module and an authorization node corresponding to the current transportation flow; and reading the transportation information through the connected authorized node and sending the transportation information to the block chain module.
And identifying a plurality of transportation flows in the transportation flow information, and judging the corresponding transportation flow according to the current time and the product position. After the transportation flow is determined, connection between the blockchain module and an authorization node corresponding to the transportation flow is established, and the authorization node can collect and upload transportation information from the intelligent terminal. It should be noted that the transport information uploaded by the authorized node must be guaranteed to be authentic, i.e. if the transport information is entered, it needs to be verified.
In an alternative embodiment, the blockchain module verifies the shipping information and calculates a hash value of the shipping information, including: extracting transportation flow information, and verifying whether the transportation information meets the requirements or not based on the transportation flow information; if yes, calculating a hash value of the transportation information; if not, confirming, and calculating the hash value of the transportation information after the confirmation is passed; and establishing an association relation between the hash value and the corresponding transportation information, and storing the hash value and the transportation information.
The verification of the transportation information can analyze whether the transportation information is consistent with the actual transportation track, if so, the transportation information is judged to be in accordance with the requirements, and if not, the product manufacturer should be allowed to confirm, namely, under the unreliability factor, the product manufacturer is allowed to judge the transportation information is in accordance with the requirements. After verification is passed, the block chain module calculates a hash value of the corresponding transportation information, and establishes an association relationship between the hash value and the corresponding transportation information.
In an alternative embodiment, the blockchain module analyzes and judges the transportation flow, and when the transportation flow is finished, the hash values of the product production information and the transportation information are spliced into a data sequence; and mapping the data sequence into a two-dimensional code through a two-dimensional code generation technology, and attaching the two-dimensional code to a product.
After the transportation is completed, the blockchain module includes product production information and corresponding hash values, and a plurality of transportation information and corresponding hash values. And splicing the hash values into a data sequence, mapping the data sequence into a two-dimensional code through a two-dimensional code generation technology, and attaching the data sequence to a product. It should be noted that, the two-dimensional code may be attached after the transportation process is completed, or may be attached before the transportation process begins; when attached before the start of the transportation flow, the two-dimensional code only includes the hash value of the product production information. And the two-dimension code can also adopt an electronic two-dimension code to save cost.
In a preferred embodiment, the query node scans the two-dimensional code and identifies the data sequence in the uploaded two-dimensional code to the blockchain module; the block chain module analyzes the data sequence to obtain hash values corresponding to the product production information and the transportation information; and the block chain module is used for calling the product production information or the transportation information corresponding to the hash value according to the association relation and feeding the product production information or the transportation information back to the query node.
And the user scans the two-dimensional code through the query node, extracts the data sequence in the two-dimensional code and uploads the data sequence to the block chain module. The block chain module extracts the hash value from the data sequence, and extracts the data corresponding to the feedback hash value according to the association relation, so that a user can quickly acquire the production information and the transportation information of the product.
The working principle of the invention is as follows:
acquiring product production information and transportation flow information, and uploading the product production information and the transportation flow information to a block chain module; the block chain module calculates a hash value of the product production information and establishes an association relationship between the hash value and the product production information.
The block chain module establishes a connection relation with the authorization node based on the transportation flow information, and corresponding transportation information is input through the authorization node; and establishing an association relation between the transportation information and the corresponding hash value.
After the transportation flow is completed, the block chain module integrates the hash values corresponding to the product production information and the transportation information into a data sequence; the query node obtains information by scanning a two-dimensional code generated based on the data sequence.
The above embodiments are only for illustrating the technical method of the present invention and not for limiting the same, and it should be understood by those skilled in the art that the technical method of the present invention may be modified or substituted without departing from the spirit and scope of the technical method of the present invention.
Claims (8)
1. The utility model provides a product production information traceability system based on block chain, includes the block chain module to and a plurality of authorized nodes and inquiry node that are connected with it, its characterized in that:
acquiring product production information and transportation flow information, and uploading the product production information and the transportation flow information to a block chain module; the block chain module calculates a hash value of the product production information and establishes an association relation between the hash value and the product production information;
the block chain module establishes a connection relation with the authorization node based on the transportation flow information, and corresponding transportation information is input through the authorization node; establishing an association relation between the transportation information and the corresponding hash value;
after the transportation flow is completed, the block chain module integrates the hash values corresponding to the product production information and the transportation information into a data sequence; the query node obtains information by scanning a two-dimensional code generated based on the data sequence.
2. The blockchain-based product production information traceability system of claim 1, wherein the blockchain module is communicatively connected to an authorization node and a query node, respectively; the authorization node and the query node are both in communication connection with the intelligent terminal, and the intelligent terminal comprises a mobile phone or a computer;
the authorization node verifies the reliability of the intelligent terminal connected with the authorization node based on the transportation flow information; the query node is used for identifying query information sent by the intelligent terminal connected with the query node.
3. The blockchain-based product production information traceability system of claim 2, wherein the product production information is obtained from a product manufacturer and the formulated transportation flow information; the production information and the transportation flow information of the product are confirmed and then uploaded to a block chain module; the transportation flow information comprises a carrier, a carrier and a transportation route.
4. The blockchain-based product production information traceability system according to claim 3, wherein the blockchain module calculates a hash value of the product production information after receiving the product production information, and establishes an association relationship between the hash value and the corresponding product production information, and the blockchain-based product production information traceability system comprises:
identifying product production information; wherein, the product production information comprises a batching table, a production place, an environment and a date;
splicing all sub-information of the product production information to generate a product information sequence, calculating a hash value of the product information sequence, and establishing an association relation between the hash value and the product production information; or calculating the hash value of each piece of sub-information, and establishing the association relation between each hash value and the corresponding piece of sub-information.
5. The blockchain-based product production information traceability system according to claim 1 or 4, wherein the blockchain module establishes a connection relationship with an authorized node based on transportation flow information, and obtains transportation information through the connected authorized node, comprising:
identifying the current transportation flow of the product based on the transportation flow information, and establishing a connection relationship between the blockchain module and an authorization node corresponding to the current transportation flow;
and reading the transportation information through the connected authorized node and sending the transportation information to the block chain module.
6. The blockchain-based product production information traceability system of claim 5, wherein the blockchain module verifies the shipping information and calculates a hash value of the shipping information, comprising:
extracting transportation flow information, and verifying whether the transportation information meets the requirements or not based on the transportation flow information; if yes, calculating a hash value of the transportation information; if not, confirming, and calculating the hash value of the transportation information after the confirmation is passed;
and establishing an association relation between the hash value and the corresponding transportation information, and storing the hash value and the transportation information.
7. The blockchain-based product production information traceability system of claim 6, wherein the blockchain module analyzes and judges a transportation flow, and when the transportation flow is completed, the hash values of the product production information and the transportation information are spliced into a data sequence; and
and mapping the data sequence into a two-dimensional code through a two-dimensional code generation technology, and attaching the two-dimensional code to a product.
8. The blockchain-based product production information traceability system according to claim 7, wherein the query node scans the two-dimensional code and identifies a data sequence in the uploaded two-dimensional code to the blockchain module; the block chain module analyzes the data sequence to obtain hash values corresponding to the product production information and the transportation information;
and the block chain module is used for calling the product production information or the transportation information corresponding to the hash value according to the association relation and feeding the product production information or the transportation information back to the query node.
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