The invention discloses a safe positioning method for an urban rail transit train based on ultra-wideband communication, which comprises the following steps: an antenna pair is arranged at the head of the train and comprises antennas respectively arranged at the two sides of the head; in each positioning period, UWB communication with a label beside a line is carried out through the two antennas, and distance values R1 and R2 between the two antennas of the antenna pair and the label beside the line are calculated according to the signal propagation duration; and after each positioning period is finished, the calculation according to the distance values R1 and R2 comprises the train head position, the train running direction and the train speed. The method can accurately detect the running direction and the position of the train. The train length abnormity can be detected in time by respectively detecting the positions of the train head and the train tail, so that the abnormity can be detected and responded in time when the train carriages are disjointed.
本发明公开了一种基超宽带通信的城市轨道交通列车安全定位方法,其包括:列车的车头设置有一个天线对,其包括分别设置在车头两侧的天线;在每个定位周期中,通过这两个天线分别与线路旁标签进行UWB通信,并根据信号传播时长计算天线对的两个天线与线路旁的标签之间的距离值R1、R2;在每个定位周期结束后,根据距离值R1、R2进行的计算包括:车头位置、列车运行方向、列车速度。本方法可以准确检测列车的运行方向、列车位置。通过分别检测车头车尾的位置还可以及时检测列车长度异常,从而在列车车厢脱节时及时检测并响应该异常。
Urban rail transit train safety positioning method based on ultra wide band communication
一种基超宽带通信的城市轨道交通列车安全定位方法
2023-11-07
Patent
Electronic Resource
Chinese
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