The invention provides a rail train positioning method and system. The system comprises a grating plate, a plurality of laser speed measuring devices and a signal processing device, wherein the grating plate is arranged on a rail train and is provided with a plurality of rectangular holes; the laser speed measuring devices are arranged on two sides of a rail; the signal processing device is connected with each laser speed measuring device; when the rail train travels on the rail, a laser signal emitted by laser emitting equipment in the laser speed measuring device is received by correspondinglaser receiving equipment after passing through the grating plate, the signal processing equipment forms counting pulses according to the laser signals received by the laser receiving equipment, therelative position of the current laser speed measuring device relative to the grating plate is calculated according to the counting pulses, the position of the rail train is calculated according to the relative position and the absolute position of the current laser speed measuring device, the rail train is positioned, and rail train positioning is accurately achieved.
本发明提出了一种轨道列车定位方法及系统,该系统包括设置于轨道列车上的开设有多个矩形开孔的光栅板、设置于轨道两侧的多个激光测速装置和与各个激光测速装置连接的信号处理装置,当轨道列车在轨道上行驶时,激光测速装置中的激光发射设备发射的激光信号通过光栅板后被对应的激光接收设备接收,信号处理设备根据各个激光接收设备接收到的激光信号形成计数脉冲,根据计数脉冲计算当前激光测速装置相对于光栅板的相对位置,并根据相对位置以及当前激光测速装置的绝对位置计算轨道列车的位置,实现轨道列车定位,准确地实现轨道列车定位。
Rail train positioning method and system
轨道列车定位方法及系统
2020-07-07
Patent
Electronic Resource
Chinese
IPC: | B61L Leiten des Eisenbahnverkehrs , GUIDING RAILWAY TRAFFIC |
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