A fault location unit of a landing door safety circuit includes: a fault collection circuit, which is disposed corresponding to the landing door locking fault monitoring module of the landing door safety circuit at a certain landing, and which is configured to collect a signal indicating landing door locking fault from only the landing door locking fault monitoring module at said certain landing and output a corresponding electrical level signal; and a fault sending component, which is electrically connected to the fault collection circuit in a one-to-one correspondence, and which is configured to send corresponding fault information containing landing information of the landing based on the received electrical level signal.
LOCATING FAILURE OF LANDING DOOR SAFETY CIRCUIT
2022-01-20
Patent
Electronic Resource
English
IPC: | B66B Aufzüge , ELEVATORS |
VOLTAGE SIGNAL PROCESSING UNIT, LANDING DOOR FAILURE LOCATING SYSTEM AND METHOD, ELEVATOR SYSTEM
European Patent Office | 2022
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