本申请公开了一种基于光纤光栅阵列的轨道交通列车定位系统和方法,该系统包括:沿待定位列车行驶轨道铺设的光纤光栅阵列振动传感光缆、依次电性连接的传感检测单元、数据处理单元和输出单元;传感检测单元用于发送调制光信号,获取调制光信号经过传感光缆反射后的反射光信号;根据反射光信号得到待测振动信号、将待测振动信号传输给数据处理单元;数据处理单元用于对待测振动信号进行处理,得到列车的位置信息,并将位置信息发送给输出单元;输出单元,用于接收位置信息,对位置信息进行发送。本发明采用光纤光栅阵列振动传感光缆作为检测探头,布设简单、抗干扰性能强;通过数据处理单元实现恶劣环境下列车长距离、高精度的连续定位。

    The invention discloses a rail transit train positioning system and method based on a fiber bragg grating array. The system comprises a fiber bragg grating array vibration sensing optical cable, a sensing detection unit, a data processing unit and an output unit, wherein the fiber bragg grating array vibration sensing optical cable is laid along a running rail of a train to be positioned, and the sensing detection unit, the data processing unit and the output unit are electrically connected in sequence. The sensing detection unit is used for sending a modulated light signal and obtaining a reflected light signal after the modulated light signal is reflected by the sensing optical cable; obtaining a vibration signal to be measured according to the reflected light signal, and transmitting the vibration signal to be measured to a data processing unit; the data processing unit is used for processing the vibration signal to be detected to obtain position information of the train and sending the position information to the output unit; and the output unit is used for receiving the position information and sending the position information. The fiber bragg grating array vibration sensing optical cable is used as a detection probe, the arrangement is simple, and the anti-interference performance is high; and long-distance and high-precision continuous positioning of the train in a severe environment is realized through the data processing unit.


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    Titel :

    一种基于光纤光栅阵列的轨道交通列车定位系统和方法


    Erscheinungsdatum :

    2024-05-03


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    G01H MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES , Messen von mechanischen Schwingungen oder Ultraschall-, Schall- oder Infraschallwellen / B61L Leiten des Eisenbahnverkehrs , GUIDING RAILWAY TRAFFIC