The embodiment of the invention provides a full-redundancy speed measurement method and system for a rail train. The method comprises the steps that a main speed measurement system and a standby speed measurement system operate at the same time; inputting pulse signals and phase differences of the multi-channel speed sensor; the speed sensor detection and switching module is used for switching different channel groups and different speed sensors according to whether the input signal is normal or not; the accelerometer module judges the advancing direction of the train according to the phase difference and calculates the initial speed value and the acceleration value of the train; the speed measurement processing module processes a speed sensor signal and intelligently optimizes data to eliminate influences of other factors such as external noise, and then rationality judgment is performed on the speed according to the data of the accelerometer module; the logic processing module performs logic processing on the data output by the speed measurement processing module, and finally performs consistency voting on the speed values output by the logic processing unit 1 and the logic processing unit 2; and after the voting is passed, outputting the advancing direction and the speed value of the train to a train control system. According to the method, full-redundancy speed measurement of the rail train is achieved, and the stability, safety and practicability of a train speed measurement system and a train control system are improved.
本发明实施例提供一种轨道列车全冗余测速方法及系统,所述方法包括:主备测速系统同时运行;多通道速度传感器脉冲信号及相位差输入;速度传感器检测及切换模块根据输入信号是否正常进行不同通道组和不同速度传感器的切换;加速度计模块根据相位差判断列车前进方向,并计算出列车初始速度值及加速度值;测速处理模块处理速度传感器信号并对数据智能优化排除外部噪声等其他因素影响,然后根据加速度计模块的数据对速度进行合理性判断;逻辑处理模块对测速处理模块输出的数据进行逻辑处理,最后,对逻辑处理单元1和逻辑处理单元2输出的速度值进行一致性表决;表决通过后,将列车前进方向和速度值输出至列车控制系统。所述方法实现了轨道列车全冗余测速,提高列车测速系统和列车控制系统的稳定性、安全性和实用性。
Rail train full-redundancy speed measurement method and system
一种轨道列车全冗余测速方法及系统
2023-02-03
Patent
Elektronische Ressource
Chinesisch
IPC: | B61L Leiten des Eisenbahnverkehrs , GUIDING RAILWAY TRAFFIC |
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