城市轨道交通信号系统架构研究
余继
Research on Architecture of Urban Rail Transit Signaling System
YU Ji
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作者信息:合肥市轨道交通集团有限公司， 230001， 合肥
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Affiliation:Hefei Metro Group Co., Ltd., 230001, Hefei, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2022.10.025
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中图分类号/CLCN:U231+.7
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栏目/Col:研究报告
摘要:
城市轨道交通信号系统在保证列车安全、高效运行，提高行车指挥的自动化程度方面发挥着重要的作用。随着城市轨道交通大规模的线网建设和运营，经典的CBTC(基于通信的列车控制)系统架构存在的一系列问题日益显现，如资源分配不够精细，难以实现敏捷功能；后备系统投资大，使用较少，投入产出比低；系统健壮性不足；升级改造困难和建设运维成本高等。通过改进CBTC系统架构，可使上述问题得以改善。精简的CBTC系统架构和TACS(列车自主运行系统)架构针对经典的CBTC系统架构存在的问题进行了改进。通过综合分析二者的主要特点(优势和技术成熟度)和应用状况，得出以下结论：目前精简的CBTC系统架构已较为成熟，具备大范围推广条件；而TACS架构尚处于应用初期，在高密度线路运用必须慎重考虑针对故障运营场景的后备系统设计。
Abstracts:
Urban rail transit signaling system plays an important role in ensuring safe and highly efficient operation of train, and in elevating automation level of train command. With large scale of urban rail transit line network construction and operation, problems existing in typical CBTC (communication based train control) system architecture have become increasingly evident, such as insufficient refinement of resource allocation, difficult to implement agile function;large investment of fallback system together with low utilization efficiency and ROI (return of investment); poor system robustness; difficulty in upgrading and retrofit and the high cost of system construction, operation and maintenance. Through enhancement of CBTC system architecture, the above problems can be ameliorated. Simplified CBTC system architecture and TACS (train autonomous control system) architecture have made improvement targeting the problems existing in typical CBTC system architecture. By comprehensively analyzing the main characteristics of the two (advantages and technical maturity) and the application status, conclusions are obtained that currently, the simplified CBTC system architecture has become relatively mature for large-scale promotion, while the TACS architecture is still in the initial stage of application. The fallback system design for the operation scenario under failure conditions must be carefully considered in high-density line application.
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