Research On Retrospective System Of Agricultural Products Based On Blockchain

In recent years,with the advent and widespread application of intelligent technologies such as RFID,the Internet of Things,and large data,many researchers have begun to combine emerging technologies with agricultural product traceability systems.Including:different system query platforms based on Android,Web,etc.,data carrier forms based on RFID or two-dimensional code.These studies have innovated in the platform or technology of data query and reading,but in the traditional agricultural product tracing system,the problems of data management are still scattered,difficult to share,and difficult to trace.On the basis of previous research,this paper focuses on the data management of the system.'After analyzing the theory and key technologies of emerging block chains,the distributed,decentralized,and consistent characteristics of block chains are applied to agricultural products.Retrospective system.The framework and application scheme of combining block chain technology with agricultural product traceability system are proposed.The main research work and contents of this paper are as follows:(1)The problems and challenges of agricultural product traceability system in data management are studied,as well as the status of agricultural product traceability system at home and abroad and the status of the application of block chain technology.(2)The characteristics of data management in the agricultural product traceability system,the structure of the block chain,and the key technologies in different layers are analyzed.The differences in maturity,SDK richness and block type among the three technology platforms based on block chain are analyzed and compared.(3)On the basis of the above analysis,a block chain technology scheme based on superbook is proposed based on the agricultural product retrospective system.At the same time,the logic framework of agricultural product tracing system based on block chain is proposed.According to its network node architecture and system development model,the main transaction module and data management core module of the system are designed.(4)The realization of the agricultural product traceability system based on block chains is proposed.Including two major parts:one is the establishment of a Super book network,and the second is the development of system applications.The Super book network is based on the installation of various software,the configuration of the environment,and the call of components.The development of system applications includes:the front and rear ends of applications based on the Super ledger Node.js SDK,the chain function that provides data queries and calls,applications based on gRPC and endorsement nodes,and the implementation of chain code interactions.The realization of the system guarantees the authenticity and reliability of the data on the chain,and provides convenience for the fast query and tracing of data.