基于云边协同的城市轨道交通信号系统方案
李云1王崇国1殷江宁2
Urban Rail Transit Signaling System Scheme Based on Cloudedge Collaboration
LI YunWANG ChongguoYIN Jiangning
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作者信息:1.南京地铁建设有限责任公司， 210010， 南京
2.上海电气泰雷兹交通自动化系统有限公司， 201206，上海
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Affiliation:Nanjing Metro Construction Co., Ltd., 210010, Nanjing, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2023.07.036
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中图分类号/CLCN:U231.7
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栏目/Col:应用技术
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ECCBTC(基于云边协同的CBTC)系统方案进行深入研究。方法：提出了ECCBTC系统的架构，分析了ECCBTC系统较传统CBTC系统具有的优势；探讨了ECCBTC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ECCBTC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，ECCBTC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。
Abstracts:
Objective: Conventional CBTC (communicationbased train control) systems are no longer able to fully meet the needs of largescale urban rail transit line network construction and operation. Therefore, it is urgent to conduct indepth research on the ECCBTC (CBTC based on cloudedge collaboration) system, which integrates the latest cloud computing, IoT (Internet of Things), and safety electronic system technologies. Method: The architecture of the ECCBTC system is proposed, and the advantages of the ECCBTC system over conventional CBTC systems are analyzed. The specific design schemes and measures for the three key technologies of the ECCBTC system: realtime safety cluster, safety edge controller, low latency and high deterministic communication network are discussed.Result & Conclusion: The ECCBTC 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, ECCBTC has the advantages of higher availability, better maintainability and safety, lower operation, maintenance and reconstruction costs, and support for largescale line network interoperation, making it a viable option for the signaling system under future urban rail transit largescale line networking operation conditions.
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