The invention relates to a high-speed rail safe operation detection method based on optical fiber distributed vibration monitoring. Optical fibers are distributed on two sides of a rail; therefore, the use of a sensing cable is not influenced when a wheel runs; a high-speed rail running state sensor and a wheel and rail noise sensor on the sensing cable can also perform real-time monitoring; everytime the wheel and rail noise sensor on the sensing cable transmit a friction vibration signal between a wheel and a rail back to an optical fiber vibration detector, the vibration frequency betweenthe wheel and the rail is observed all the time; the running state sensor can also transmit the running state information of a high-speed train back to a self-diagnosis module; the information transmitted back in the past forms an information model, the information model is compared with the information in the information model, the existing information is stored and reserved, and when the opticalfiber vibration detector or the existing information is different from the past information, the optical fiber vibration detector can give an alarm so that the normal operation of the high-speed train is ensured.
本发明涉及一种基于光纤分布式振动监测的高铁铁轨安全运行检测方法,通过将光纤分布安装在铁轨的两侧,这样车轮在运行时就不会影响到传感电缆的使用,并且在传感电缆上的高铁运行状态传感器以及车轮与车轨噪音传感器也会进行时刻的监测,每当传感电缆上的车轮与车轨噪音传感器将车轮与车轨之间的摩擦震动信号传回光纤振动检测机,时时刻刻的观察车轮与车轨之间的振动频率,并且运行状态传感器也会将高铁运行的状态信息传回自诊断模块,以往传回的信息会组成信息模型,与信息模型内部的信息进行比对,并且现有信息会进行保存留档,当光纤振动检测机或者现有的信息与以往的信息有区别时,光纤振动检测机都将会进行报警,保证高铁的正常运行。
High-speed rail safe operation detection method based on optical fiber distributed vibration monitoring
一种基于光纤分布式振动监测的高铁铁轨安全运行检测方法
2020-10-30
Patent
Electronic Resource
Chinese
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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