The invention provides a train positioning method based on an ultra wide band enhanced Beidou and a virtual transponder. The method comprises the following steps: establishing a virtual transponder basic database and an ultra-wideband equipment basic database according to collected data of a target track line; establishing a positioning observation quality basic database according to the Beidou positioning observation quality of the target track line, and compiling an ultra-wideband/Beidou combined positioning strategy set; in the train operation process, a positioning strategy is dynamically selected according to Beidou signal real-time observation conditions, the three-dimensional space position of current operation of the train is calculated, an ultra-wideband positioning calculation data source of the train is obtained, and traveled distance information of the train at the next moment is calculated. And determining the travelled distance of the train in the next positioning calculation period and the pre-capture triggering moment, and sending position correction information at the capture moment of the nearest target virtual transponder to be captured. According to the method, the ultra-wideband technology and Beidou positioning are combined, and the capturing precision and stability of the virtual transponder in a complex environment are effectively improved.
本发明提供了一种基于超宽带增强北斗和虚拟应答器的列车定位方法。该方法包括:根据采集的目标轨道线路的数据建立虚拟应答器基础数据库和超宽带设备基础数据库;根据目标轨道线路的北斗定位观测质量建立定位观测质量基础数据库,编制超宽带/北斗联合定位策略集;在列车运行过程中根据北斗信号实时观测条件动态选择定位策略,计算列车当前运行的三维空间位置,获取列车的超宽带定位解算数据源,计算出下一时刻的列车的行驶里程信息,确定下一定位解算周期的列车行驶里程以及预捕获触发时刻,在最邻近待捕获目标虚拟应答器捕获时刻发送位置校正信息。本发明方法将超宽带技术与北斗定位相结合,有效提升了复杂环境下虚拟应答器的捕获精度和稳定性。
Train positioning method based on ultra-wideband enhanced Beidou and virtual transponder
一种基于超宽带增强北斗和虚拟应答器的列车定位方法
08.04.2025
Patent
Elektronische Ressource
Chinesisch
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