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Title:
RAIL TRANSIT VEHICLE AND VEHICLE DOOR STATE DETECTION CIRCUIT AND DETECTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/197560
Kind Code:
A1
Abstract:
A vehicle door state detection method, comprising: determining activation states of a first power supply end and a second power supply end, determining an activated end, and starting from a non-activated end, collecting a state signal of a travel switch of a door of each carriage; if the state signal of the travel switch of the door of the first carriage is at a low level, determining that the door of the first carriage on this side is not secured; if the state signals of the travel switches of the doors of the first to ith carriages are all at a high level, and the state signals, which have been subjected to an AND operation, of the travel switches of the doors of the first to (i+1)th carriages are at a low level, determining that the door of the (i+1)th carriage on this side is not secured, wherein i = 2 to n-1; and if the state signals of the travel switches of the doors of the first to (n-1)th carriages are all at a high level, determining that the door of the nth carriage is not secured. By comprehensively determining a signal of an activated end of a train, a state signal of a train line of a door and a collected IO signal of a door state of a single carriage, the precise positioning of a faulty door is realized. The present invention further relates to a vehicle door state detection circuit and a rail transit vehicle.

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Inventors:
BAI CHUNGUANG (CN)
SHANG JIANGAO (CN)
PENG JU (CN)
WU GUILIN (CN)
LIU GUANGYAN (CN)
Application Number:
PCT/CN2022/127171
Publication Date:
October 19, 2023
Filing Date:
October 25, 2022
Export Citation:
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Assignee:
CRRC ZHUZHOU LOCOMOTIVE CO LTD (CN)
International Classes:
B61D19/00; B61C17/00; G05B19/042
Foreign References:
CN114701528A2022-07-05
CN210027407U2020-02-07
CN202125142U2012-01-25
CN214451018U2021-10-22
JPH058723A1993-01-19
JP2009121144A2009-06-04
JP2000280895A2000-10-10
Attorney, Agent or Firm:
CHANGSHA ZONEKEY PATENT LAW FIRM (CN)
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