上海轨道交通音视频统一信息服务系统与信号系统的接口内容优化
杜琦骏
Optimization of Interface Content between Shanghai Rail Transit Audio Video Unified Information Service System and Signaling System
DU Qijun
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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.2024.11.030
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中图分类号/CLCN:U231.7; U270.38
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栏目/Col:应用技术
摘要:
［目的］为了实现信息服务的实时性、准确性和高效性，提升上海轨道交通的运营服务效率和服务质量，有必要优化音视频统一信息服务系统与信号系统之间的接口内容。［方法］从上海轨道交通音视频统一信息服务系统与信号系统既有接口内容的架构和不足出发，梳理了接口内容优化的要求，优化后接口内容的架构，结合典型运营场景，论述了接口内容优化的主要功能。［结果及结论］优化后接口内容采用主备冗余的双链路传输架构，提高了接口的冗余度和安全性。在运营工作需要局部调整时，通过统一接口内容对终点站的定义，消除了播报错误的隐患。面对全自动运行场景，在接口内容中增加了首末班车标记位功能，既能减少人工修改相关信息的工作量，又能实现信号系统和音视频统一信息服务系统自动适应运行图的调整。
Abstracts:
［Objective］ To improve the real-time, accuracy, and efficiency of information services, and enhance the operational service efficiency and quality of Shanghai rail transit, it is essential to optimize the interface content between the audio video unified information service system and the signaling system. ［Method］ Starting from the architecture and deficiencies of the interface content between the existing audio video unified information service and the signaling system of Shanghai Rail Transit, the requirements for interface content optimization and the architecture of the optimized interface content are sorted out. By incorporating typical operational scenarios, the optimized primary functions of interface content are discussed. ［Result & Conclusion］ By adopting a primary-backup redundant dual-link transmission architecture, the optimized interface content enhances both redundancy and security of the interface. When partial adjustments are needed during operations, using unified interface content to define terminal stations could eliminate the risk of broadcast errors. For FAO (fully automatic operation) scenarios, a first and last train marker function added in the interface content reduces the workload for manual updates, allowing the signaling and the audio video unified information service systems to adapt to adjustments in operation diagram automatically.
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