Design And Implementation Of Agricultural Products Traceability Ststem Based On Hyperledger

In recent years,the safety of agricultural products has made the traceability of agricultural products an effective way to ensure the safety of agricultural products.There are many new traceability systems based on RFID tags and QR codes as data carriers.These systems had solved the problems of data update,anti-counterfeiting and efficiency,but they are still an extension of the traditional centralized traceability system.These systems are still an island of information,and their problems of non-tampering,data sharing,and traceability.Therefore,designing a decentralized traceability system will effectively solve the data security problem.Based on the predecessors,this thesis designs and implements a set of decentralized agricultural product traceability mother system.The main design goal is to apply blockchain decentralization and other technologies to the traceability system to achieve a decentralized agricultural products traceability system.The specific method is to use the hyperledger as the data storage platform for the traceability of agricultural products,and apply the modular development environment and decentralized storage provided by the hyperledger to the traceability system.Furthermore,based on hyperledger,one kind agricultural products traceability parent system is proposed.This thesis focuses on the ways and methods of applying the hyperledger to the traceability system of agricultural products.the characteristics of the blockchain such as nontampering,decentralization and easy traceability are applied to the traceability of agricultural products.The program can effectively record agricultural product information and confirm the source of agricultural products,and solving the trust problem from producer to consumer purchase;secondly,proposed and designed an architecture and application scheme that combines super ledger technology with agricultural product traceability system,including agricultural product traceability requirements analysis,the overall structure of the agricultural product traceability system,the establishment of the hyperledger system and SDK,and the authentication method of the transaction traceability results.Finally,this thesis builds a prototype system based on the hyperledger based agricultural product traceability on Ali Cloud,which implements the on-chain,query and verification functions of agricultural product information and traceability,and meets the design system requirements.