METHOD AND SYSTEM FOR DETECTING PERSON TRAPPED BY ELEVATOR CAR

WIPO Patent Application WO/2023/028753

A1

A method and system for detecting a person trapped by an elevator car. The method comprises: configuring an elevator controller (1) of an elevator to collect state parameters of an elevator car (3) in real time; configuring a digital transmission unit (2) of the elevator to continuously acquire the state parameters from the elevator controller and continuously store the state parameters; when the elevator is in a non-power-off state, the digital transmission unit detecting, according to a logical combination of the acquired state parameters, whether the elevator car is in a state of there being a person trapped therein; and when the elevator is in a power-off state, the digital transmission unit detecting, according to a logical combination of state parameters that are acquired one second before the elevator is powered off, whether the elevator car is in a state of there being a person trapped therein. In the method, whether there is a passenger in an elevator car is determined by using an internal message from an elevator controller, so that it is not necessary to mount an additional sensor even if the elevator is powered off, and the costs can be reduced.

LI JIAO (CN)
PU CHENGDONG (CN)
LI LIN (CN)

PCT/CN2021/115318

March 09, 2023

August 30, 2021

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KONE CORP (FI)
KONE ELEVATORS CO LTD (CN)

B66B5/02; B66B3/00

CN104803251A	2015-07-29
CN110697529A	2020-01-17
CN111071892A	2020-04-28
CN104071668A	2014-10-01
CN102145840A	2011-08-10
CN101462663A	2009-06-24
JP2000143110A	2000-05-23

LIU, SHEN & ASSOCIATES (CN)

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