In order to solve the problem of wireless loading of line data for heavy-haul railways and normal-speed railways and minimize the dependence on the coverage of wireless network,it is proposed that under the condition of wireless network coverage only at stations,the line data within the train path can be searched in real time according to the train running direction,train location,section length,turnout position and section locking direction,and accurately sent to the train in point-to-point mode.Under the condition that the section is not covered by wireless network,the prefabricated line data of the section is sent to the train in advance at the station in point-to-point fixed period.The on-board equipment judges the location of the estimated front end of the train,adopts the station line data or the section line data,and calculates the distance-to-go continuous speed curve according to the track circuit code to monitor the safe operation of the train.The proposed method effectively reduces the requirements of wireless communication range for line data loading,and reduces the implementation difficulty and investment cost of line transformation.
关键词
线路数据上车/无线网络范围/搜索行车路径/轨道电路发码/连续速度模式曲线/区域无线通信/控车切换
Key words
line data boarding/wireless network range/search traffic path/track circuit coding/continuous speed curve/region wireless communication/train control switching
维普
万方数据