基于区块链的食品安全溯源技术研究

Research on Food Safety Traceability Technology Based on Blockchain

为提高食品安全溯源信息的完整性,保证食品生产中各环节的透明化,引进区块链技术,将食品安全生产信息录入数据库中进行扫描与分解,将一个完整的基础数据划分为由“数据头+数据块”构成的数据,实现对食品安全生产信息的去中心化处理;引进二维码技术、空间定位技术,进行产品可追溯信息的标识与编码;将智能合约作为支撑,设计食品安全数据追溯与召回信息展示功能,以此完成对食品安全溯源方法的设计。以地区内某大型食品生产工厂作为测试单位进行对比实验,证明设计方法可以提高追溯信息的完整度。

In order to improve the integrity of food safety traceability information and ensure the transparency of all links in food production, blockchain technology is introduced to enter food safety production information into the database for scanning and decomposition, and divide a complete basic data into “data”. The data composed of “head+data block” realizes the decentralized processing of food safety production information;introduces two-dimensional code technology and spatial positioning technology to identify and encode product traceability information;uses smart contracts as support to design food safety data traceability and recall information display functions are used to complete the design of food safety traceability methods. A comparative experiment was conducted with a large food production factory in the region as a testing unit, and it was proved that the design method can improve the integrity of traceability information.