The invention relates to a non-contact speed measurement positioning method for a medium-low speed maglev train. The method comprises the following steps that (1) two speed measuring and positioning devices are installed at the head and the tail of the maglev train respectively, each speed measuring and positioning device comprises at least four eddy current sensors which are linearly arranged insequence along the body of the maglev train, and the distance D between every two adjacent eddy current sensors is fixed; 2) classified calculation is carried out according to preset working conditions to respectively obtain train speed sequences corresponding to the speed measurement positioning devices at the head and the tail of the train; and 3) the train speed sequence is taken as input dataof an optimization algorithm of Kalman filtering, the train speed at the next moment is predicted, and weighted correction is carried out. Compared with the prior art, the method has the advantages ofhigh prediction precision, high reliability, soft fault self-diagnosis and the like.
本发明涉及一种用于中低速磁浮列车的非接触测速定位方法,包括以下步骤:1)在磁浮列车车头和车尾处分别安装两个测速定位装置,每个测速定位装置包括至少4个沿磁浮列车车体依次直线排列的涡流传感器,且相邻涡流传感器之间的间距D固定;2)根据预设工况条件分类计算分别得到车头和车尾处测速定位装置对应的列车速度序列;3)以列车速度序列作为卡尔曼滤波的优化算法的输入数据,预测得到下一时刻的列车速度,并进行加权校正。与现有技术相比,本发明具有预测精度高、可靠性高、软故障自诊断等优点。
Non-contact speed measurement positioning method for medium-low speed maglev train
一种用于中低速磁浮列车的非接触测速定位方法
2020-08-18
Patent
Electronic Resource
Chinese
IPC: | B61L Leiten des Eisenbahnverkehrs , GUIDING RAILWAY TRAFFIC |
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