区块链在轨道交通边缘计算网络中的应用

Application of blockchain in urban rail traffic edge computing network

多接入边缘计算(multi-access edge computing,MEC)能为城市轨道交通中的计算密集型业务和时延敏感型业务提供高质量的服务能力,然而轨道交通边缘计算网络中的大量边缘设施暴露在开放式环境中,其隐私保护和传输安全面临着很大的挑战。区块链(blockchain)具有分布式账本、共识机制、智能合约、去中心化应用等功能特性,因此,区块链技术可以为分布式轨道交通边缘计算网络构建系统性的安全防护机制,从而保障网络安全和数据安全,实现高质量的城市轨道交通服务。首先,介绍了区块链的基本概念;其次,设计了轨道交通边缘计算网络架构,提出了融合区块链的轨道交通边缘计算网络安全防护机制和应用实例;最后,对该安全防护机制面临的问题和挑战进行了分析和展望。

Multi-access edge computing(MEC)can provide high-quality service capabilities for computing-intensive services and delay-sensitive services in urban rail traffic.However,many edge facilities in rail traffic edge computing network are exposed to an open environment,and their privacy protection and transmission security are facing great challenges.Blockchain has functional characteristics such as distributed ledger,consensus mechanism,smart contract,and decentralized application.Therefore,the use of blockchain can build a systematic security protection mechanism for the distributed rail traffic edge computing network to ensure network security and data security and realize high-quality urban rail traffic services.Firstly,the basic concept of the blockchain and the urban rail traffic edge computing network architecture were introduced.Then,the structure and application content of the rail traffic edge computing network security protection mechanism integrated with the blockchain was discussed in detail.Finally,the open research issues and challenges of the security protection mechanism were analyzed.