The invention discloses a train real-time positioning method based on speed weighted filtering. The method comprises the steps of position data acquisition, coordinate projection, data preprocessing and speed weighted filtering. Through the GPS positioning device, under the condition that the positioning effect of the train is poor, train position information is obtained and corrected in real timethrough speed amplitude weighted filtering and speed azimuth weighted filtering. The method is simple and easy to implement, the accuracy and reliability of train positioning are improved according to the running characteristics of the train and the measurement precision of the GPS on the premise of ensuring the safety performance of the train, and the problem of positioning precision caused by irregular drifting and shaking of the GPS is well solved.
本发明公开了一种基于速度加权滤波的列车实时定位方法,包括位置数据采集、坐标投影、数据预处理和速度加权滤波步骤。本发明通过GPS定位装置,在列车本身定位效果较差的情况下,采用速度幅值加权滤波和速度方位加权滤波实时获取和修正列车位置信息。本发明简单易实现,在保证列车安全性能的前提下,针对列车的运行特性和GPS的测量精度,提高列车定位的准确性和可靠性,对于由GPS自身无规律的漂移和抖动现象所引起的定位精度问题有较好的改善。
Train real-time positioning method based on speed weighted filtering
基于速度加权滤波的列车实时定位方法
12.06.2020
Patent
Elektronische Ressource
Chinesisch
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