摘要
目的:传统CBTC(基于通信的列车控制)系统已不能完全适应大规模城市轨道交通线网建设及运营的需求,亟需对融合了最新的云计算、IoT(物联网)和安全电子系统技术的EC-CBTC(基于云边协同的CBTC)系统方案进行深入研究。方法:提出了EC-CBTC系统的架构,分析了EC-CBTC系统较传统CBTC系统具有的优势;探讨了EC-CBTC系统的实时安全集群、安全边缘控制器、低时延及高确定性的通信网络三大关键技术的具体设计方案和措施。结果及结论:构建了EC-CBTC系统基于2oo2(二取二)的“裸金属”安全计算机集群方案架构、基于2oo2(二取二)的安全云平台架构及基于2oo3(三取二)的安全云平台架构。相比于传统CBTC系统,EC-CBTC具有可用性高、可维护性和安全性好、建设运维和改造成本低、支持大规模线网互联互通等优势,是未来城市轨道交通大规模线网化运营条件下信号系统的备选方案。
Objective:Conventional CBTC(communication-based train control)systems are no longer able to fully meet the needs of large-scale urban rail transit line network construction and operation.Therefore,it is urgent to conduct in-depth research on the EC-CBTC(CBTC based on cloud-edge collaboration)system,which integrates the latest cloud computing,IoT(Internet of Things),and safety electronic system technologies.Method:The architecture of the EC-CBTC system is proposed,and the advantages of the EC-CBTC system over conventional CBTC systems are analyzed.The specific design schemes and measures for the three key technologies of the EC-CBTC system:real-time safety cluster,safety edge controller,low latency and high deterministic communication network are discussed.Result&Conclusion:The EC-CBTC system is constructed based on′bare metal′secure computer cluster architecture,a 2oo2(two out of two)safety cloud platform architecture and a 2oo3(two out of three)safety cloud platform architecture.Compared with the conventional CBTC system,EC-CBTC has the advantages of higher availability,better maintainability and safety,lower operation,maintenance and reconstruction costs,and support for large-scale line network interoperation,making it a viable option for the signaling system under future urban rail transit large-scale line networking operation conditions.
作者
李云
王崇国
殷江宁
LI Yun;WANG Chongguo;YIN Jiangning(Nanjing Metro Construction Co.,Ltd.,210010,Nanjing,China;不详)
出处
《城市轨道交通研究》
北大核心
2023年第7期194-199,共6页
Urban Mass Transit
