The invention discloses a train identification and positioning method, device and equipment based on a grating array, and the method comprises the steps: obtaining a continuous track bed vibration signal, and carrying out the segmentation processing of the continuous track bed vibration signal, and obtaining a plurality of segmented track bed vibration signals; respectively calculating root-mean-square values of the plurality of subsection ballast bed vibration signals, determining whether the plurality of subsection ballast bed vibration signals have an effective driving signal section according to a relationship between the root-mean-square values and a threshold value, and splicing the subsection ballast bed vibration signals with the effective driving signal section to obtain a driving signal; determining a wheel track signal corresponding to any wheel track of the train based on a driving signal, and performing matched filtering on the wheel track signal and the continuous track bed vibration signal to obtain a processing signal; and determining a train identification result and a real-time positioning result according to the root-mean-square value of the processing signal. According to the invention, the signal-to-noise ratio of the effective driving signal segment compared with the ballast bed signal segment is improved, and the driving positioning precision is improved.
本发明公开了一种基于光栅阵列的列车识别及定位方法、装置和设备,方法包括:获取连续道床振动信号,并对所述连续道床振动信号进行分段处理,得到多个分段道床振动信号;分别计算所述多个分段道床振动信号的均方根值,并根据所述均方根值与阈值的关系,确定所述多个分段道床振动信号是否存在有效行车信号段,并对存在有效行车信号段的分段道床振动信号进行拼接,得到行车信号;基于行车信号确定列车任意轮轨对应的轮轨信号,并将所述轮轨信号与所述连续道床振动信号进行匹配滤波,得到处理信号;根据所述处理信号的均方根值,确定列车识别结果与实时定位结果。本发明实现了提高了有效行车信号段相比于道床信号段的信噪比,提高了行车定位精度。
Train identification and positioning method, device and equipment based on grating array
一种基于光栅阵列的列车识别及定位方法、装置和设备
2024-01-09
Patent
Elektronische Ressource
Chinesisch
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