The invention discloses a train speed measurement and axle counting system based on a fiber bragg grating and a TEDS system control method, the train speed measurement and axle counting system comprises a fiber bragg grating demodulator and a fiber bragg grating speed measurement and axle counting sensor group arranged on a track, and the fiber bragg grating speed measurement and axle counting sensor group comprises a plurality of fiber bragg grating speed measurement and axle counting sensors which are connected in sequence; the fiber bragg grating speed measurement axle counting sensor group is used for collecting fiber bragg grating center wavelength change signals generated by steel rail deformation when train wheels pass through a rail; and the fiber bragg grating demodulator is used for obtaining the train speed and the train axle number according to the fiber bragg grating central wavelength change signal through a fiber bragg grating central wavelength change signal demodulation method. The method can be used for speed monitoring of a motor train unit operation fault dynamic image detection system, the image distortion probability is reduced, and the train detection efficiency of the system is improved.

    本发明公开了基于光纤光栅的列车测速和计轴系统及TEDS系统控制方法,它包括光纤光栅解调仪、设置在轨道上的光纤光栅测速计轴传感器组,光纤光栅测速计轴传感器组包括多个依次相连的光纤光栅测速计轴传感器;光纤光栅测速计轴传感器组,用于采集列车车轮经过轨道时引起钢轨变形产生的光纤光栅中心波长变化信号;光纤光栅解调仪,用于通过光纤光栅中心波长变化信号解调法根据所述光纤光栅中心波长变化信号得到列车速度和列车轴数。本发明能用于动车组运行故障动态图像检测系统的速度监测,减小图像的失真概率,提高系统对列车的检测效率。


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    Title :

    Train speed measurement and axle counting system based on fiber bragg grating and TEDS system control method


    Additional title:

    基于光纤光栅的列车测速和计轴系统及TEDS系统控制方法


    Contributors:
    LI ZHENGYING (author) / XU GANG (author) / WANG JIAQI (author) / HE BO (author) / CHEN KEWEI (author)

    Publication date :

    2024-05-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B61L Leiten des Eisenbahnverkehrs , GUIDING RAILWAY TRAFFIC / G01P MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION OR SHOCK , Messen der Linear- oder Winkelgeschwindigkeit, der Beschleunigung, der Verzögerung oder des Stoßes



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