适用于列车自主运行系统的信号系统全冗余车载架构
倪智豪
Signaling System Fully Redundant On-board Architecture Suitable for TACS
NI Zhihao
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作者信息:上海地铁维护保障有限公司通号分公司，200235，上海
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Affiliation:Telecom & Signal Branch, Shanghai Metro Maintenance Support Co., Ltd., 200235, Shanghai, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2024.11.029
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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］上海轨道交通3、4号线的信号系统已无法满足高密度，高可靠性的网络化运营需求，须升级为TACS(列车自主运行系统)。对此，有必要基于TACS的工作原理研究信号系统的全冗余车载架构。［方法］基于TACS的工作原理，详细阐述了全冗余车载架构的设计方案，并描述了基于全冗余车载架构方案的TACS硬件及通信网络架构，分析了故障处理机制，结合动静态功能测试及不同运行场景下功能测试的结果，分析了全冗余车载架构的优劣，并提出相关建议。［结果及结论］全冗余车载架构采用双机热备、双通道冗余、双电源冗余等设计，能有效提高信号系统的安全性和稳定性，提高列车的智能化水平，进而增大线路的运能，提高运营的安全性和灵活性。
Abstracts:
［Objective］ The signaling system of Shanghai Rail Transit Line 3 and Line 4 can no longer meet the requirements of high-density and high-reliability networked operation, necessitating an upgrade to TACS (train autonomous circumambulate system). Therefore, based on the working principle of TACS, it is essential to study a fully redundant on-board architecture for the signaling system. ［Method］ According to the working principle of TACS, the design scheme of fully redundant on-board architecture is elaborated. TACS hardware and communication network architecture based on fully redundant on-board architecture scheme is described, the fault handling mechanism is analyzed, and the results of dynamic and static functional tests as well as tests under different operation scenarios are examined. Relevant suggestions are proposed with analyzing the advantages and disadvantages of fully redundant on-board architecture. ［Result & Conclusion］ The fully redundant on-board architecture employs designs such as dual-machine hot standby, dual-channel redundancy, and dual-power redundancy, effectively enhancing the safety and stability of the signaling system, improving train intelligence level, thereby increasing line capacity, operation safety and flexibility.
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