The embodiment of the invention provides a health monitoring method and system for a high-speed railway system, and the method comprises the steps: converting each vibration waveform generated by an optical fiber interferometer into a time-frequency spectrogram, enabling the vibration waveforms to be waveforms of vibration generated by a monitoring road segment corresponding to the optical fiber interferometer in a sampling time period, and enabling the time-frequency spectrogram to be a time-frequency spectrogram; the sampling time periods of the vibration waveforms are different, the time-frequency spectrograms are imported into a preset section recognition model to obtain section identifiers corresponding to the time-frequency spectrograms output by the preset section recognition model, the section identifiers are identifiers of sections forming the monitoring road section, power spectrum conversion processing is carried out on the multiple time-frequency spectrograms corresponding to the same section identifier, and the time-frequency spectrograms are obtained. Vibration characteristic spectrums of all the sections are obtained, the vibration characteristic spectrums represent vibration characteristics of the high-speed railway system in the sections corresponding to the vibration characteristic spectrums, and health monitoring is conducted on the high-speed railway system in all the sections based on all the vibration characteristic spectrums. According to the invention, the health monitoring precision of the high-speed railway system of each section is improved.
本发明实施例提供了一种高速铁路系统的健康监测方法及系统,其中,方法包括:将光纤干涉仪生成的各振动波形转换为时频谱图,其中,振动波形为光纤干涉仪对应的监测路段在一个采样时段内产生振动的波形,各振动波形的采样时段不同,将各时频谱图导入至预设区段识别模型中,以获得预设区段识别模型输出的时频谱图对应的区段标识,区段标识为组成监测路段的各区段的标识,对同一个区段标识对应的多个时频谱图进行功率谱变换处理,获得各区段的振动特征谱,振动特征谱表征了其对应的区段内的高速铁路系统的振动特征,基于各振动特征谱对各区段内的高速铁路系统进行健康监测。本发明提高了对各区段高速铁路系统的健康监测精度。
Health monitoring method and system for high-speed railway system
一种高速铁路系统的健康监测方法及系统
2024-04-12
Patent
Elektronische Ressource
Chinesisch
IPC: | B61K Andere Hilfseinrichtungen für Eisenbahnen , OTHER AUXILIARY EQUIPMENT FOR RAILWAYS / B61L Leiten des Eisenbahnverkehrs , GUIDING RAILWAY TRAFFIC / G01H MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES , Messen von mechanischen Schwingungen oder Ultraschall-, Schall- oder Infraschallwellen |
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