Research On Flexible Traceability Model Of Agricultural Products Based On Blockchain

Every link in the supply chain of agricultural products may have quality and safety risks,and agricultural product traceability is an important means to monitor the risk of the supply chain and improve the quality of agricultural products.After years of research on the traceability of agricultural products,China has made great achievements in the complete coverage of the supply chain and the full collection of traceability data,but there is still a great room for progress in the flexible adaptation of traceability process to the actual production situation and the safe storage of traceability data.Based on the analysis of the supply chain model of agricultural products and the existing traceability model of agricultural products,this paper designs the flexible traceability model of agricultural products with the idea of modularization and micro service architecture,and further combines the link ledger and the block chain data storage scheme of multi main chain,proposes the " Flexible Traceability Model of Agricultural Products Based on Blockchain ",and finally develops the oil tea seed oil traceability system based on the model.The specific research contents are as follows:(1)Research on flexible traceability model of agricultural productsBased on the analysis of the supply chain of agricultural products and the summary of the research status of agricultural products traceability at home and abroad,according to the idea of modularization and micro service system architecture,this paper designs a flexible traceability model of agricultural products.In this study,the supply chain links are decoupled and encapsulated into independent modules,so that the centralized traceability model of agricultural products can be transformed into a flexible traceability model of agricultural products which is composed of multiple decentralized modules and coordinated with each other to complete complex system functions.(2)Research on flexible traceability model of agricultural products based on blockchainBased on the study of flexible traceability model of agricultural products,this paper integrates its distributed model structure with the blockchain data storage scheme of "link ledger and multi main chain",and further decouples and encapsulates the system functions into supporting functional modules,and designs a flexible traceability model of agricultural products based on blockchain.First of all,each functional module is composed of data processing logic and block chain,which can independently complete the transaction processing and data security storage of its link.The modules communicate with each other and call each other through data flow,so that the link nodes can flexibly connect with the actual production situation,and realize the flexible traceability of agricultural products;Secondly,based on the fidelity storage of the traceability data in the blockchain,each functional module cooperates with each other to complete a series of system operation processes,so as to make the traceability results of agricultural products more reliable.(3)Implementation of traceability systemBased on the research of flexible traceability model of agricultural products,this paper designs the architecture of traceability system,and designs a series of system operation processes for the efficient operation of the system,such as edge users,dynamic tracking,fast traceability,etc,and put forward the plan of data release and accountability,and finally complete the building operation of blockchain,such as the construction of super ledger,the writing of smart contract,the realization of super ledger client,etc.,and realize the flexible traceability system of agricultural products based on blockchain,and verify the system with camellia oil as the traceability object,the results show that the traceability process of this traceability system has a strong flexibility,and can provide high reliability traceability data.