上海轨道交通某线的车地无线通信故障分析
吴磊
Analysis of Train-Wayside Wireless Communication Failure of Certain Shanghai Rail Transit Line
WU Lei
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作者信息:上海地铁维护保障有限公司车辆分公司, 200030， 上海
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Affiliation:Rolling Stock Branch, Shanghai Metro Maintenance Support Co., Ltd., 200030, 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.2021.08.049
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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:
对上海某轨道交通线路车地无线通信故障频发问题的历史日志数据进行统计分析后发现，车速、复杂环境和基站位置都会对通信产生影响，进而引起信噪比恶化，引发车地无线通信故障。从降低干扰源、加装信号放大模块及保护敏感源等3个方面，阐述了解决车地无线通信故障频发问题的措施及其可行性。从某线路的试用效果来看，在射频前端电路加装滤波器能显著降低车地无线通信的故障率。
Abstracts:
After analyzing the history log data of trainwayside wireless communication failure frequent occurrence problem of certain Shanghai Metro line, it is found that vehicle speed, complex environment and base station location are all potentially influencing the communication, deteriorating signaltonoise ratio and causing trainwayside communication failure. From three aspects of reducing interference source, installing signal amplification module and protecting sensitive source, measures and its feasibility of solving train-wayside failure frequent occurrence are expounded. The results of test implementation of certain line show that installing wave filter on RF front-end circuit can significantly lower train-wayside wireless communication failure rate.
引文 / Ref:
吴磊.上海轨道交通某线的车地无线通信故障分析[J].城市轨道交通研究，2021，24(8):230.
WU Lei.Analysis of train-wayside wireless communication failure of certain Shanghai rail transit line[J].Urban Mass Transit，2021，24(8)：230.
WU Lei.Analysis of train-wayside wireless communication failure of certain Shanghai rail transit line[J].Urban Mass Transit，2021，24(8)：230.
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