南京地铁7号线应答器天线干扰问题研究
何玉琴1谢炜2
Study on the Balise Antenna Interference Problem on Nanjing Metro Line 7
HE Yuqin1XIE Wei2
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作者信息:1.南京地铁建设有限责任公司，210017，南京
2.中车南京浦镇车辆有限公司，210031，南京
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Affiliation:1.Nanjing Metro Construction Co., Ltd., 210017, Nanjing, China
2.CRRC Nanjing Puzhen Co., Ltd., 210031, 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.2024.10.042
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中图分类号/CLCN:U270.38∶U231
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栏目/Col:研究报告
摘要:
［目的］在实际运用中，由于列车安装环境复杂，应答器天线受到不同程度的干扰，有时甚至会影响到应答器正常工作。因此，有必要开展关于应答器天线干扰问题的研究。［方法］深入剖析了南京地铁7号线列车应答器传输单元(BTM)在调试阶段遇到的信号设备重启故障的根本原因。通过系统性的排查，逐一分析了被干扰设备、干扰路径及干扰源这三类潜在因素，最终精准锁定了故障的根本原因。［结果及结论］经过对故障根源的细致处理，成功解决了南京7号线地铁列车应答器传输单元的重启故障问题，也为后续设计工作提供宝贵的经验。在地铁车辆的设计与制造过程中，必须高度重视电磁干扰问题，从源头上避免干扰源的产生，合理设计干扰路径的隔离措施，确保列车在复杂电磁环境中稳定运行。
Abstracts:
［Objective］ Due to the complex installation environment of the train in actual application, the balise antenna is subject to varying degrees of interference, sometimes even affecting its normal operation. Therefore, it is necessary to carry out the research on balise antenna interference. ［Method］ The signal equipment restart failure encountered by the balise transmission module (BTM) on Nanjing Metro Line 7 during the commissioning stage is taken as the research object. Through systematic investigation, three potential factors of interfered equipment, interference path and interference source are analyzed one by one, and finally the root cause of the fault is accurately identified. ［Result & Conclusion］ After careful handling of the fault′s root cause, the restart fault of the BTM on Nanjing Metro Line 7 trains is successfully solved, providing valuable experiences for subsequent design work. In the design and manufacturing process of metro vehicles, it is imperative to pay great attention to electromagnetic interference issues. Preventing the generation of interference sources from the source, and designing isolation measures for the interference path reasonably can ensure the stable operation of trains in complex electromagnetic environments.
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