The embodiment of the invention provides a train positioning method and system based on track curve characteristics. The train positioning method comprises steps that positioning data of a train during positioning are acquired; fitting of the positioning data is performed to obtain a fitted running track of the train; a running line of the train is determined according to an electronic map of a railway track in combination with the fitting running track; based on a projection method, according to projection points of the positioning data on the running line, a running section, located on the running line, of the train is judged, and determining that the train is located at the straight line segment of the running line, determining positioning of the train on the running line by using a straight line projection method, otherwise, determining positioning of the train by using a curve fitting method. The train positioning method is advantaged in that the running track of the train is fitted according to the train positioning data, the running track is matched with the electronic map, and the running line, the running section and the accurate positioning position of the train to be positioned are analyzed in sequence so that train positioning precision of the whole line is effectively improved.
本发明实施例提供一种基于轨道曲线特征的列车定位方法及系统,包括:获取列车在定位时的定位数据;对定位数据进行拟合,获取列车的拟合行驶轨迹;根据铁路轨道的电子地图,结合拟合行驶轨迹,确定列车的运行线路;基于投影法,根据定位数据在运行线路上的投影点,判断列车位于运行线路上的运行区段;确定列车位于运行线路的直线段,则利用直线投影法在运行线路上确定所述列车的定位,否则利用曲线拟合方法确定所述列车的定位。本发明实施例根据列车定位数据拟合出列车的行驶轨迹,并将该行驶轨迹与电子地图进行匹配,依次分析出待定位列车的运行线路、运行区段以及准确的定位位置,有效的提高了全线路的列车定位精度。
Train positioning method and system based on track curve characteristics
一种基于轨道曲线特征的列车定位方法及系统
2020-05-05
Patent
Elektronische Ressource
Chinesisch
Satellite Based Train Positioning Using Three-dimensional Track Maps
British Library Online Contents | 2015
|Satellite Based Train Positioning Using Three-dimensional Track Maps
Online Contents | 2015
|Train positioning system and train positioning method
Europäisches Patentamt | 2021
|Train track occupation detection method and device based on satellite positioning
Europäisches Patentamt | 2015
|