| As the growth of the logistics industry slows down year by year,problems such as the leakage of personal information,lost goods,misleading and misleading information,and difficulty in information traceability that have been neglected in the rapid development of the logistics industry have gradually emerged and restricted the development of the logistics industry.Blockchain technology has excellent features such as decentralization and tamper resistance,which is very suitable for application in the logistics industry to solve the above problems.This article builds the logistics cooperation platform LCP-Chain based on the underlying technology of the blockchain in the logistics industry,which not only helps the logistics industry solve the above industries At the same time,through the safe sharing of information in the industry alliance,we can promote the common development of enterprises and overcome the bottleneck of industry development.The work of this paper is as follows:1.Realize the relational query function on the LCP-Chain blockchain logistics information platform by setting up a data analysis layer.In view of Hyperledger Fabric's current query,it does not support relational query,the query function is single and the efficiency is not high,and the data query optimization technology LQS based on the intermediate database is proposed.By setting up a data analysis layer,LQS performs data synchronization,data analysis,and data reorganization on the blockchain data at the bottom of the platform,and synchronizes the underlying data of the blockchain to a third-party relational database in real time.Use mature relational database to realize complex operations such as relational query of blockchain data.Experimental results show that LQS query optimization technology will increase data synchronization time and occupy part of the platform performance,but it can reduce query time by 5-10 times,while supporting complex operations such as relational queries.2.Combining VRF technology and BFT-Sma Rt consensus algorithm,the VRF-BFT-Sma Rt consensus scheme is proposed.The use of VRF technology to randomly select endorsing nodes solves the problem that the identity of endorsing nodes in the Hyperledger Fabric consensus mechanism is easy to be attacked.The VRF-BFT-Sma Rt consensus algorithm also solves the problem that the native consensus algorithm does not support Byzantine fault tolerance.This scheme randomly selects endorsing nodes,and applies the BFT-Sma Rt algorithm,which simplifies the leader node selection mechanism and error handling mechanism,to the consensus algorithm,which improves the data consensus efficiency of the system.Experimental results show that the solution can reduce the data consensus time of the blockchain system by about 35%,and at the same time improve the security of the LCP-Chain logistics information platform.3.Designed and built the LCP-Chain blockchain logistics information platform.By introducing the data query optimization technology LQS and VRF-BFT-Sma Rt consensus scheme based on the intermediate database,the LCP-Chain logistics information platform has rich query functions and fast The speed of data consensus can be better applied to logistics services.Functional and performance testing of the platform.The results show that the platform can meet the business requirements of the logistics system in terms of query function and consensus speed. |
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