Charging Pile Electricity Trading Design Based On Blockchain Technology

The electric vehicle industry is booming,and the demand for safe and efficient charging solutions is growing.Current centralized electricity trading schemes require users to entrust their assets and transaction information to central institutions.In this situation,users’ assets and information face security risks.Users do not have full control over their assets,and the central institution’s wallet stores a large amount of user funds and transaction-related information,making it an easy target for hackers.If a decentralized trading scheme is used,users have complete control over their assets and information,with no central institution providing funds and user information custody services,increasing the security of funds and user information.On the other hand,most car owners’ travel and charging times are generally consistent,which can lead to charging congestion.This results in a high load on the power grid during concentrated charging,and car owners struggle to find suitable charging stations when they need to charge.Therefore,when designing electricity trading schemes,it is necessary to consider the car-station matching scheme to provide the greatest convenience for car owners.At the same time,this can help alleviate the pressure on the power grid.The analysis of the current problems of charging pile power trading and its own solutions are firstly presented in this paper.Based on the analysis of electricity trading needs,functional and performance requirements are put forward for the electricity trading system platform.The elliptic curve encryption algorithm is used to complete user identity authentication as the starting point for the design of the electricity trading scheme.Starting from the overall design of identity authentication,the charging station equipment identity authentication design and car owner client identity authentication design are further completed,and pseudocode for identity authentication implementation and case testing are provided.Next,by modeling and analyzing electric vehicles and charging stations,the carstation matching design scheme is completed.Secondly,the architecture of the charging station electricity trading platform is designed.The information transmission in the trading process is thoroughly researched,and homomorphic encryption and secure multi-party computation technologies are used to complete bidding without disclosing the car owner’s bid information.The car owner’s orders are sorted according to the bid amount,ensuring orderly charging.A smart contract workflow timing diagram is designed from the beginning of identity authentication to the secure completion of transactions.According to the requirements of the Fabric state database,the data models of various entities in the actual trading process are designed.Finally,the test environment and network were deployed on a standalone machine,completing the development of the mobile platform.Performance testing was conducted for the trading platform designed in this article.The promotion and application of this platform provides a more convenient and efficient electricity trading method for the sustainable development of the electric vehicle industry,while offering users safer,faster,and more reliable charging services.