The invention provides a traffic signal sign identification method and system. The method comprises the following steps: arranging a radio transmitting device on each traffic signal sign device; after traffic content information indicated by each traffic signal sign device is coded, a single fixed frequency point is adopted to carry out non-encrypted broadcasting; a geomagnetic detection device is arranged on the vehicle, and deflection angles of the vehicle advancing direction and the local geomagnetic field direction are measured in real time; arranging a radio receiving device on the vehicle; the radio receiving device scans and measures the intensity of radio signals on all fixed frequency points, and ranks the received radio signals from large to small; the first n radio signals are taken, and the absolute value of the difference value between the deflection angle of the coming lane direction served by the traffic signal marking equipment in each radio signal relative to the local geomagnetic field direction and the deflection angle of the local geomagnetic field direction is analyzed to be smaller than a threshold value; and if so, displaying the content of the data frame of the radio signal on a display screen of the vehicle.
本发明提供了一种交通信号标志识别方法及系统,方法包括:在各交通信号标志设备上均设置无线电发射装置;各交通信号标志设备指示的交通内容信息,经编码后,采用单一固定频点进行非加密广播;在车辆上设置地磁检测装置,实时测量车辆行进方向和本地大地磁场方向的偏转角度;在车辆上设置无线电接收装置;所述无线电接收装置扫描并测量所有固定频点上的无线电信号的强度,对接收到的无线电信号进行由大到小排序;取前n个无线电信号,解析出各个无线电信号中的交通信号标志设备所服务的来向车道方向相对于本地大地磁场方向的偏转角度与本地大地磁场方向的偏转角度的差值绝对值小于阈值,则将此无线电信号的数据帧的内容显示在车辆的显示屏上。
Traffic signal sign identification method and system
一种交通信号标志识别方法及系统
12.04.2024
Patent
Elektronische Ressource
Chinesisch
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