Research On The Construction Of Agricultural Product Quality And Safety Traceability Platform Based On Blockchain Technology

With the advent of computers and the information age and improved living status,the informatization of agricultural products industry chain has been increasingly noticed.In the meanwhile,the traceability system has been widely used in tracing the source of agricultural products.However,in traditional agricultural products traceability system,traceability information is stored in the centralized database,which allows administrators to change the data optionally.Furthermore,the traditional agricultural products traceability system only focuses on displaying traceability information rather than reflecting the quality of agricultural products in real time,especially,the real-time feedback mechanism is scarce when agricultural products with problems enter the market.Considering the limitations of data security,information reliability and timeliness in the current traceability system,we designed and developed a quality and safety traceability platform of agricultural products based on blockchain technology,which ensures the reliability of agricultural products traceability information.In the meanwhile,we utilized the health code to supervise the quality of agricultural products in the market in real time.The main research and design contents are as follows:(1)This paper analyzed the feasibility and necessity of the combination of blockchain technology and agricultural products traceability in respects of technical principles,then organized the system structure and specific process of agricultural products traceability based on blockchain.(2)First,this paper designed a multi-party collaborative supervision which is composed of the suppliers and transporters,supervision and testing departments and consumers to jointly maintain the health code status of agricultural products.Users can know the quality of agricultural products according to the real-time feedback of health code.(3)Then,built the underlying blockchain based on the super ledger alliance chain,called the functional interaction module designed by the smart contract to access the agricultural products traceability data,and ensured that the data cannot be tampered by the blockchain technology.(4)Finally,by calling blockchain service through restful interface,the agricultural products traceability system was designed and developed to realize management of the basic information,uploading and querying of the traceability information,management of user rights,consumer query and feedback and other functions.In conclusion,the agricultural product quality and safety traceability platform based on blockchain,and combining agricultural product traceability and health code,has the advantages of decentralization,data tampering,high reliability and real-time supervision.The reliability of agricultural products traceability information is enhanced by using blockchain technology.This research provides practitioners and researchers with future directions for speed improving of blockchain data access,business logic optimizing and deep integration of Internet of Things technology.