A product traceability information management system and method based on a block chain

Abstract

The invention belongs to the technical field of Internet of things, in particular to a product traceability information management system and method. The system adopts an up-chain and down-chain coordination mechanism to manage supply chain information: the manufacturer of a product supply chain collects, stores and manages the product information or the event information produced in the process of supply chain through the sub-system under the chain, and uploads the key traceability information with anti-tamper requirements, such as information storage certificate, information location, identity authentication evidence, etc. to the sub-system on the chain based on the block chain for storage and management; each link in the same supply chain is found through the functional modules of the subsystems on the chain to verify and share the data of the subsystems under each link in the supply chain to ensure the safety of the whole process. The invention solves the unauthorized tampering problem and the trust chain transmission problem faced by the traditional tracing system, improves the credibility of the product tracing system, and ensures the flexibility and scalability of the system.

Description

Technical field [0001] The invention belongs to the technical field of the Internet of Things, and specifically relates to a product traceability information management system and method. Background technique [0002] In recent years, product safety issues have occurred frequently, and product safety issues have increasingly become the focus of people’s attention. This puts forward for all companies in the product supply chain to accurately monitor and record products in planting (breeding), processing, packaging, testing, and transportation. The information requirements of key links, the use of Internet technology to realize the storage and management of these key information has become a frontier field of general concern. The existing product electronic traceability system has the following three problems: 1) The integrity protection of product electronic traceability information, that is, the tamper-proof problem of product traceability information; 2) The transmission of trus...

AI Technical Summary

Problems solved by technology

The existing product electronic traceability system has the following three problems: 1) the integrity protection of product electronic traceability information, that is, the tamper-proof problem of product traceability information; 2) the trust chain transmission problem, that is, the supply chain nodes do not have When other supply chain nodes in the direct trade relationship initiate a traceability information request, the requested supply chain node cannot determine whether the requesting node is in its product supply chain, which will affect the information interaction between systems

3) Leakage of sensitive information of product supply chain manufacturers

The above-mentioned characteristics of the blockchain make this technology have great application prospects in the field of product electronic traceability, but directly adopting the existing blockchain architecture for product electronic traceability system design will have the problem of data volume explosion

In the existing blockchain architecture, each distributed node saves the complete set of blockchain data. If it is directly used in the field of product traceability and widely used, it will lead to excessive data volume and cause data volume explosion.

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