中国农机化学报2026，Vol.47Issue(2)：168-176,9.DOI:10.13733/j.jcam.issn.2095-5553.2026.02.023
基于区块链的粮食供需匹配机制构建研究
Research on the construction of food supply and demand matching mechanism based on blockchain
摘要
Abstract
Innovating the food supply and demand matching mechanism is a realistic need to alleviate the tight balance between food supply and demand in China at this stage and reduce the risks and hidden dangers of localized regional food supply,and it is also a necessary measure to smooth the domestic food cycle and enhance the resilience of the food supply chain.Based on the practice of food transactions and the advantages of blockchain technology,the food supply and demand matching mechanism based on blockchain is constructed,focusing on the construction of a normalized element expression for multi-source heterogeneous food supply and demand data,designing a food supply and demand matching algorithm based on the similarity degree of the elements,and giving the key steps for the implementation of the algorithm's smart contract.Finally,the scientificity and effectiveness of the matching mechanism were verified through a numerical example.The food supply and demand matching mechanism based on blockchain not only provides a standardized semantic and structural expression of food supply and demand data,but also effectively solves the problem of food supply and demand matching caused by factors such as time,geographic factors and information asymmetry,etc.At the same time,through the automatic execution and dynamic adjustment of the smart contract,a credible state can be achieved without the participation of a third party to achieve the efficient docking of food supply and demand transactions.Simulation tests show that the grain supply and demand matching mechanism based on blockchain can significantly improve the matching efficiency.The average matching time for each order is 1.2 s,and it can handle approximately 2 250 supply and demand information sheets simultaneously,reducing the time cost of matching decisions.关键词
供需匹配/粮食供应链/区块链/智能合约/数据治理Key words
supply and demand matching/food supply chain/blockchain/smart contract/data governance分类
社会科学引用本文复制引用
Wang Lin,Liu Yi..基于区块链的粮食供需匹配机制构建研究[J].中国农机化学报,2026,47(2):168-176,9.基金项目
国家社科基金重大项目(20&ZD126) （20&ZD126）
国家社科基金青年项目(21CGL032) （21CGL032）
河南省高校哲学社会科学创新人才支持计划(2023—CXRC—29) （2023—CXRC—29）
