CN111507736A - Method for recording product packaging process by using nested digital twin - Google Patents
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- CN111507736A CN111507736A CN202010316988.8A CN202010316988A CN111507736A CN 111507736 A CN111507736 A CN 111507736A CN 202010316988 A CN202010316988 A CN 202010316988A CN 111507736 A CN111507736 A CN 111507736A
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000012858 packaging process Methods 0.000 title claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 claims description 15
- 238000004806 packaging method and process Methods 0.000 claims description 14
- 238000002372 labelling Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 230000002776 aggregation Effects 0.000 description 18
- 238000004220 aggregation Methods 0.000 description 18
- 235000013305 food Nutrition 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 238000012550 audit Methods 0.000 description 1
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Abstract
The invention provides a method for recording a product packaging process by utilizing a nested digital twin; based on the packaging process, signing is carried out on data generated in each operation node to obtain an electronic tag, the data and the electronic tag are contained in a data packet and sent to a next operation node, and each operation node except a first operation node contains the data packet sent by the previous operation node in the sent data packet. The invention can effectively help each party of government, enterprise, logistics and the like to provide the source tracing of complete data, provide simple and verifiable evidences for auditing, problem pursuit and the like, help each party clear responsibility boundaries and establish trust relationships among the parties; the data counterfeiting events are greatly reduced, and the efficiency of manually tracing the risk events is greatly improved; the requirement of the service requiring data anti-counterfeiting tracing is met; the method is simple to implement, the data source tracing is effective, and the requirements of services are met.
Description
Technical Field
The invention relates to a method for recording a product packaging process by utilizing a nested digital twin.
Background
Currently, product packaging is the most distinctive application field in the packaging field of China, and many products concern the life safety of people, especially food packaging. Traceability is therefore of great importance for food products and their packaging. The large food safety incidents over the last decade have been associated with the safety of packaging and its traceability, in addition to the food itself. At all, the root cause of frequent occurrence of safety events is information asymmetry between governments, manufacturers, product packaging suppliers, intermediaries and consumers. Causing problems with trust between the two parties to the transaction. This is also the source of many product packaging and its safety issues.
Currently, a traceability system of product packaging is generally considered as a key technical means for solving information asymmetry. Current product package traceability systems suffer from several drawbacks. Such as relying on a unified central core database, there is some possibility that data may be tampered with, among stored, transmitted, and displayed; meanwhile, the product packaging tracing system still has a manual operation state in many links; it is therefore possible for the information provider to selectively mask basic information that is disadvantageous to itself; the comprehensive application level of the product packaging tracing system depends on the strength of government supervision measures, and the system has certain artificial operation space and lacks the constraint on the effective rights of a supervisor.
Disclosure of Invention
In order to solve the technical problems, the invention provides a method for recording a product packaging process by using a nested digital twin, which can effectively improve the credibility of an analysis test report, provide internal supervision for production, packaging and sale, provide traceability and audit credible data for a test result and clear internal responsibility boundaries.
The invention is realized by the following technical scheme.
The invention provides a method for recording a product packaging process by utilizing a nested digital twin; based on the packaging process, signing is carried out on data generated in each operation node to obtain an electronic tag, the data and the electronic tag are contained in a data packet and sent to a next operation node, and each operation node except a first operation node contains the data packet sent by the previous operation node in the sent data packet.
Each operation node comprises the following steps:
① signature, namely, carrying out keyless signature on the data generated in the production process to obtain an electronic tag corresponding to the data;
② packaging, namely generating a data packet of the current operation node according to the sequence of the data generated in the production process, the electronic tag corresponding to the data and the data packet of the previous operation node, and if the current operation node is the first operation node, generating the data packet of the current operation node only according to the sequence of the data generated in the production process and the electronic tag corresponding to the data;
③, sending the generated data packet to the next operation node, if the current operation node is the last operation node, only saving and not sending.
The keyless signature is to calculate a characteristic value of data generated in a production process, use the characteristic value as a digital combination value of a digital record to be signed, adopt a KSI keyless signature, and use a signature result as an electronic tag corresponding to the data.
The data packet is a nested socket data structure.
The generated data is recorded in an XDA L file.
The characteristic value is a hash value and is calculated based on a hash function.
The data packets are all stored in the server, two-dimensional codes are generated corresponding to the network addresses where the data packets are located, and each operation node except the first operation node receives the data packets in a mode of identifying the two-dimensional codes.
The packaging process comprises six operations of checking, labeling, boxing, sealing and receipt, wherein each operation corresponds to an operation node.
The data packet is received by identifying the two-dimensional code by adopting one of the following two modes:
a. identifying the two-dimensional code to obtain a network address, acquiring data packet contents from the network address, and using the acquired data packet contents as a data packet sent by a previous operation node;
b. and identifying the two-dimension code to obtain a network address, and using the network address as a data packet sent by the last operation node.
The invention has the beneficial effects that: the system can effectively help each party of government, enterprise, logistics and the like to provide the source tracing of complete data, provide simple and verifiable evidences for auditing, problem pursuit and the like, help each party clear responsibility boundaries and establish trust relationships among the parties; the data counterfeiting events are greatly reduced, and the efficiency of manually tracing the risk events is greatly improved; the requirement of the service requiring data anti-counterfeiting tracing is met; the method is simple to implement, the data source tracing is effective, and the requirements of services are met.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
The invention provides a method for recording a product packaging process by utilizing a nested digital twin; based on the packaging process, signing is carried out on data generated in each operation node to obtain an electronic tag, the data and the electronic tag are contained in a data packet and sent to a next operation node, and each operation node except a first operation node contains the data packet sent by the previous operation node in the sent data packet.
Each operation node comprises the following steps:
① signature, namely, carrying out keyless signature on the data generated in the production process to obtain an electronic tag corresponding to the data;
② packaging, namely generating a data packet of the current operation node according to the sequence of the data generated in the production process, the electronic tag corresponding to the data and the data packet of the previous operation node, and if the current operation node is the first operation node, generating the data packet of the current operation node only according to the sequence of the data generated in the production process and the electronic tag corresponding to the data;
③, sending the generated data packet to the next operation node, if the current operation node is the last operation node, only saving and not sending.
The keyless signature is to calculate a characteristic value of data generated in a production process, use the characteristic value as a digital combination value of a digital record to be signed, adopt a KSI keyless signature, and use a signature result as an electronic tag corresponding to the data.
The packet is a nested socket data structure.
The generated data is recorded in an XDA L file.
The characteristic value is a hash value calculated based on a hash function. The hash function has several important features: firstly, the hash operation is one-way irreversible, which indicates that the result output from the operation cannot calculate the original data, and thus the privacy of the input data is ensured; secondly, any modification of input data can lead to different output results, so that the uniqueness of the output hash value is ensured; finally, it is impossible to operate on two different data to obtain the same hash value, and this collision property again indicates that only a single hash value can be generated from one data through operation.
The data packets are all stored in the server, two-dimensional codes are generated corresponding to the network addresses where the data packets are located, and each operation node except the first operation node receives the data packets in a mode of identifying the two-dimensional codes.
The packaging process comprises six operations of checking, labeling, boxing, sealing and receipt, wherein each operation corresponds to an operation node.
The data packet is received by a mode of identifying the two-dimensional code, and one of the following two modes is adopted:
a. identifying the two-dimensional code to obtain a network address, acquiring data packet contents from the network address, and using the acquired data packet contents as a data packet sent by a previous operation node;
b. and identifying the two-dimension code to obtain a network address, and using the network address as a data packet sent by the last operation node.
The KSI keyless signature adopts a digital record signature and verification method of multi-core infrastructure disclosed by a patent CN105187218A, and the specific steps comprise:
1) sending a signature request to the selected core service, wherein the signature request comprises a digital combination value of a digital record to be signed;
2) the gateway server takes the hash value in the received signature request as a bottom node of aggregation calculation, and aggregates every two hash values of the bottom node in a set period to obtain a father node hash value of the bottom node; secondly, performing pairwise aggregation on the hash values of the father nodes layer by layer to finally obtain a gateway hash root value of the gateway server and sending the gateway hash root value to an aggregation server;
3) the aggregation server aggregates the received gateway hash root values layer by layer, and finally obtains an aggregation server hash root value which is sent to a core server connected with the aggregation server;
4) the core server verifies the data integrity of the hash root value of the aggregation server, and after the verification is passed, the core server regularly generates the hash root value of the core server according to the hash root value of the aggregation server and signs the hash root value and the generation time of the hash root value;
5) the core server returns the signature data, the hash value aggregation path of the core server and the service identifier of the core server to the aggregation server;
6) the aggregation server adds the aggregation server hash value aggregation path into the hash value aggregation path, and then returns the signature data, the updated hash value aggregation path and the service identifier to the gateway server;
7) the gateway server adds the hash value aggregation path of the gateway to the hash value aggregation path updated in the step 6), and then returns the signature data, the updated hash value aggregation path and the service identifier to the client; the client saves the signature result corresponding to the service identification of the core service selected during signature.
The implementation of the invention is based on KSI keyless signature technology and XDA L language, XDA L is an extensible language for realizing interoperability and pattern analysis, and KSI signature is a label of electronic data and provides a credible timestamp and a function of preventing data from being tampered.
The nodes comprise all the business nodes of the product in the whole life cycle (from production, propagation to extinction), for example, all the links from production to circulation to sale to consumer use of the product, and the signature step is executed in the 1 st node; performing a signature step and an initial nesting step at the 2 nd node; executing a loop nesting step at the ith node, and embedding the nested file of the (i-1) th node into the record file of the ith node to obtain the nested file of the ith node; the nested file of the last node can be obtained from any one node.
More specifically, data generated by an operation node is recorded in an XDA L file, the XDA L file comprises information such as data, attributes and an input mode, the originality, integrity and time certification of the data are protected by using a KSI signature, and a socket is generated, wherein the socket is a structure based on an XDA L language and comprises an XM L file and the KSI signature.
The nested socket data tracing process comprises the following steps:
1. firstly, data generated by a first operation node is verified through a KSI signature to ensure that the data is an original, complete and credible timestamp, and an electronic fingerprint label of the data is obtained;
2. the data signed by the KSI is transmitted to a docket background by a client to generate an XM L file, wherein the XM L file is signed by the KSI and added into the XM L file to generate a new XM L file called docket;
4. the data generated by the second operation node is repeated by the steps 1 and 2 to obtain a new XM L file, then the old docket is embedded into the new XM L file, and is signed by KSI, and the KSI signature is added into the XM L file to generate a new XM L file as a second docket;
5. and repeating the steps, and continuously generating new sockets until the service process is finished.
Through the steps, the newly generated socket records the data generated by the new node and the socket data containing all the nodes in the front, namely the data finally forms a nested chain through the continuously nested logical relationship, the evolution process of the data in the whole life cycle is completely recorded, and the data tracing effect is achieved. However, data is recorded by using a nested data structure of a socket, when the nested socket data hierarchy is too large, if data in all sockets is read, time consumption for reading the data will be increased due to limitations of socket data structure and performance, and the method is not suitable for transaction services with high real-time requirements.
Claims (9)
1. A method of recording a product packaging process using a nested digital twin, characterized by: based on the packaging process, signing is carried out on data generated in each operation node to obtain an electronic tag, the data and the electronic tag are contained in a data packet and sent to a next operation node, and each operation node except a first operation node contains the data packet sent by the previous operation node in the sent data packet.
2. The method of recording a product packaging process using nested digital twins as recited in claim 1, wherein: each operation node comprises the following steps:
① signature, namely, carrying out keyless signature on the data generated in the production process to obtain an electronic tag corresponding to the data;
② packaging, namely generating a data packet of the current operation node according to the sequence of the data generated in the production process, the electronic tag corresponding to the data and the data packet of the previous operation node, and if the current operation node is the first operation node, generating the data packet of the current operation node only according to the sequence of the data generated in the production process and the electronic tag corresponding to the data;
③, sending the generated data packet to the next operation node, if the current operation node is the last operation node, only saving and not sending.
3. The method of recording a product packaging process using nested digital twins as recited in claim 2, wherein: the keyless signature is to calculate a characteristic value of data generated in a production process, use the characteristic value as a digital combination value of a digital record to be signed, adopt a KSI keyless signature, and use a signature result as an electronic tag corresponding to the data.
4. The method of recording a product packaging process using nested digital twins as recited in claim 1, wherein: the data packet is a nested socket data structure.
5. The method for recording a product packaging process using a nested digital twin as claimed in claim 1 wherein the generated data is recorded in an XDA L document.
6. A method of recording a product packaging process using nested digital twins as claimed in claim 3, wherein: the characteristic value is a hash value and is calculated based on a hash function.
7. The method of recording a product packaging process using nested digital twins as recited in claim 1, wherein: the data packets are all stored in the server, two-dimensional codes are generated corresponding to the network addresses where the data packets are located, and each operation node except the first operation node receives the data packets in a mode of identifying the two-dimensional codes.
8. The method of recording a product packaging process using nested digital twins as recited in claim 1, wherein: the packaging process comprises six operations of checking, labeling, boxing, sealing and receipt, wherein each operation corresponds to an operation node.
9. The method of recording a product packaging process using nested digital twins as recited in claim 7, wherein: the data packet is received by identifying the two-dimensional code by adopting one of the following two modes:
a. identifying the two-dimensional code to obtain a network address, acquiring data packet contents from the network address, and using the acquired data packet contents as a data packet sent by a previous operation node;
b. and identifying the two-dimension code to obtain a network address, and using the network address as a data packet sent by the last operation node.
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Application publication date: 20200807 |