FRONT-REAR REDUNDANT SPEED AND DISTANCE MEASUREMENT SYSTEM AND METHOD FOR RAIL TRAIN

WIPO Patent Application WO/2020/078146

A1

A front-rear redundant speed and distance measurement system and method for a rail train. Each of a front end and a rear end of a train has an independent speed and distance measurement system. Each speed and distance measurement system comprises M primary sensors and N secondary sensors for speed and distance measurement, where M ≥ 1, N ≥ 0, and M + N ≥ 2. Each speed and distance measurement system further comprises a speed and distance measurement processing unit for processing measurement data from sensors and for outputting speed and distance measurement result information. Measurement information of the sensors at the front end and the rear end of the train is shared between the two speed and distance measurement systems via a communication device. The speed and distance measurement processing unit selects at least X normally operating sensors from the sensors of the speed and distance measurement systems at the two ends as measurement data sources so as to perform processing, wherein at least Y out of the X sensors are primary sensors. The system achieves redundant safe front and rear positioning for the train, and improves the reliability of automatic operation of the train.

NING YUNZHUAN (CN)
BAO PENGYU (CN)
LIU JIA (CN)
WANG CHENG (CN)

PCT/CN2019/105213

April 23, 2020

September 10, 2019

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CRSC RESEARCH & DESIGN INSTITUTE GROUP CO LTD (CN)

B61L15/00; B61L25/02

CN109532951A	2019-03-29
CN104401366A	2015-03-11
CN104608803A	2015-05-13
CN101949955A	2011-01-19
CN103192853A	2013-07-10
US20180050711A1	2018-02-22

BEIJING IPLING INTELLECTUAL PROPERTY LAW FIRM (CN)

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