A full redundancy speed measurement method for a rail train includes: inputting a pulse signal and a phase difference of a multi-channel speed sensor into an active speed measurement system and a standby speed measurement system; performing switching between different multi-channel speed sensors and between different channel groups depending on whether the inputted signal is normal; determining a train running direction based on the phase difference, and calculating an speed value and an acceleration value through the pulse signal; processing the pulse signal of the multi-channel speed sensor, and determining whether the speed value of each channel is in a reasonable interval based on the speed value and the acceleration value of each channel, and determining whether the speed value of each channel in the reasonable interval conforms to the control logic; and performing a consistency voting on a speed value outputted, and outputting the train advancement direction and the speed value to a train control system if the consistency voting is approved.
FULL REDUNDANCY SPEED MEASUREMENT METHOD AND SYSTEM FOR RAIL
2024-05-02
Patent
Electronic Resource
English
IPC: | B61L Leiten des Eisenbahnverkehrs , GUIDING RAILWAY TRAFFIC |
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