本发明提供一种基于分布式光纤传感的车辆识别与车道定位方法及系统,属于光纤传感和车路协同技术领域,通过在道路两侧布设两路传感光纤,同时接收两路包含车辆振动信号的传感光纤中的瑞利散射光信号,结合车辆振动信号沿地面传播的衰减规律并调用GPU并行加速运算进行实时数据处理解调,能够克服传统高速公路摄像头成本高昂、覆盖面积小、易受夜晚、大雾等天气原因影响的缺点,准确获得车辆位置、行驶速度、所处车道以及车流量等信息,实现对高速公路车辆的长距离全天候实时监测。
The invention provides a vehicle identification and lane positioning method and system based on distributed optical fiber sensing, and belongs to the technical field of optical fiber sensing and vehicle-road collaboration. Two paths of sensing optical fibers are arranged on the two sides of a road, and Rayleigh scattering light signals in the two paths of sensing optical fibers containing vehicle vibration signals are received at the same time; real-time data processing and demodulation are carried out by combining the attenuation law of vehicle vibration signals propagating along the ground and calling GPU parallel acceleration operation, the defects that a traditional expressway camera is high in cost, small in coverage area and prone to being affected by weather reasons such as night and heavy fog can be overcome, information such as the vehicle position, the driving speed, the lane and the traffic flow can be accurately obtained, and real-time data processing and demodulation are achieved. And long-distance all-weather real-time monitoring of vehicles on the highway is realized.
基于分布式光纤传感的车辆识别与车道定位方法及系统
2024-02-13
Patent
Elektronische Ressource
Chinesisch
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / G01H MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES , Messen von mechanischen Schwingungen oder Ultraschall-, Schall- oder Infraschallwellen / H04B TRANSMISSION , Übertragung |