METHOD AND APPARATUS FOR DETECTING ELEVATOR SAFETY CHAIN

    公开(公告)号:US20230211979A1

    公开(公告)日:2023-07-06

    申请号:US17967175

    申请日:2022-10-17

    CPC classification number: B66B13/22 B66B3/00

    Abstract: A method and device for detecting an elevator safety chain and a computer-readable storage medium for implementing the method. A device for detecting an elevator safety chain, includes: an interface unit coupled with the elevator safety chain and configured to output an operating signal having a first level when the elevator safety chain is in an ON state and an operating signal having a second level when the elevator safety chain is in an OFF state; and a processing unit, including: memory; a microcontroller coupled with the interface unit; and a computer program stored on the memory and running on the microcontroller, the running of the computer program causes: evaluating reliability of the elevator safety chain based on time domain characteristic of the operating signal output by the interface unit.

    APPARATUS AND METHOD FOR TESTING ELEVATOR DISPLAY UNIT AND ELEVATOR SYSTEM

    公开(公告)号:US20220411227A1

    公开(公告)日:2022-12-29

    申请号:US17531445

    申请日:2021-11-19

    Abstract: A detection device and a detection method for an elevator display module, an elevator including the detection device, and a computer storage medium. The detection device includes: memory; a processor; an I/O interface, configured to be coupled with one or more electroluminescent devices of the elevator display module; a communication module; and a computer program stored on the memory and running on the processor, the running of the computer program causes: receiving a detection request signal for the elevator display module via the communication module; in response to the detection request signal, applying a detection signal on at least one of the electroluminescent devices via the I/O interface; obtaining an operating level associated with the detected electroluminescent device via the I/O interface; and determining whether the detected electroluminescent device is working normally according to a polarity of the operating level.

    Guide device for an elevator car and elevator system

    公开(公告)号:US11834301B2

    公开(公告)日:2023-12-05

    申请号:US17775719

    申请日:2020-12-08

    CPC classification number: B66B7/046 B66B11/0293

    Abstract: The present disclosure provides a guide device for an elevator car, and an elevator system. The guiding device includes: a roller guide frame; and at least one roller rotatably mounted to the roller guide frame, the roller being configured to roll on an elevator guide rail when the elevator car is moving; wherein the guiding device further includes a braking device which inhibits the rotation of the roller when activated. The device according to the embodiment of the present disclosure has a simple and compact structure.

    Brake monitoring circuitry, elevator system and brake monitoring method

    公开(公告)号:US11787660B2

    公开(公告)日:2023-10-17

    申请号:US17537587

    申请日:2021-11-30

    CPC classification number: B66B5/0025 G01R19/14

    Abstract: A holding brake monitoring circuit system, an elevator system, and a holding brake monitoring method. The holding brake monitoring circuit system includes a plurality of opening sensors corresponding to holding brakes, wherein the number of the opening sensors is an even number greater than 3, and the opening sensors are configured to be paired to form at least two working groups, and each of the working groups is configured to output an output signal for judging status of the holding brake(s).

    ELEVATOR COMMUNICATION SYSTEM AND METHOD, STORAGE MEDIUM

    公开(公告)号:US20220219940A1

    公开(公告)日:2022-07-14

    申请号:US17520362

    申请日:2021-11-05

    Abstract: An elevator communication system and method, a storage medium. The system includes: a first wireless processing unit configured to receive a request for elevator in a wired manner, and configured to forward the request for elevator in a wireless manner; and a second wireless processing unit configured to receive the request for elevator from the first wireless processing unit in a wireless manner, and configured to forward the request for elevator to an elevator controller in a wired manner.

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