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公开(公告)号:US20230211979A1
公开(公告)日:2023-07-06
申请号:US17967175
申请日:2022-10-17
Applicant: Otis Elevator Company
Inventor: Fu Qi , Bichun Li , Shenhong Wang
IPC: B66B13/22
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.
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公开(公告)号:US20220411227A1
公开(公告)日:2022-12-29
申请号:US17531445
申请日:2021-11-19
Applicant: Otis Elevator Company
Inventor: Bichun Li , Fu Qi , Shenhong Wang
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.
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公开(公告)号:US20220281714A1
公开(公告)日:2022-09-08
申请号:US17524009
申请日:2021-11-11
Applicant: Otis Elevator Company
Inventor: Qiang Chen , Bichun Li , Qirui Wang , Shenhong Wang
Abstract: A calibration method and system for virtual buttons, an elevator, and a storage medium. The method includes: receiving a first designation regarding a layout of the virtual buttons in a virtual keypad zone; receiving a second designation regarding a number of the virtual buttons; and determining a position of each of the virtual buttons in the virtual keypad zone according to the first designation and the second designation.
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公开(公告)号:US11834301B2
公开(公告)日:2023-12-05
申请号:US17775719
申请日:2020-12-08
Applicant: Otis Elevator Company
Inventor: Bichun Li , Shenhong Wang , Yunru Chen
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.
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公开(公告)号:US11827495B2
公开(公告)日:2023-11-28
申请号:US17830638
申请日:2022-06-02
Applicant: Otis Elevator Company
Inventor: Bichun Li , Qirui Wang , Gang Huang , Shenhong Wang
CPC classification number: B66B7/023 , B66B19/002
Abstract: An elevator guide rail installation bracket and installation method thereof, a positioning tooling, a bracket adjustment tooling, and an elevator system. The elevator guide rail installation bracket includes a guide rail bracket having a guide rail installation surface and a first adjustment surface that form a bend, a fixed guide rail installation position is provided on the guide rail installation surface; and a hoistway bracket having a hoistway installation surface and a second adjustment surface that form a bend; the first adjustment surface is adjustably connected to the second adjustment surface to adjust the relative position between the guide rail installation surface and the hoistway installation surface.
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公开(公告)号:US11787660B2
公开(公告)日:2023-10-17
申请号:US17537587
申请日:2021-11-30
Applicant: Otis Elevator Company
Inventor: Bichun Li , Shenhong Wang
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).
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公开(公告)号:US20230133420A1
公开(公告)日:2023-05-04
申请号:US17830638
申请日:2022-06-02
Applicant: Otis Elevator Company
Inventor: Bichun Li , Qirui Wang , Gang Huang , Shenhong Wang
Abstract: An elevator guide rail installation bracket and installation method thereof, a positioning tooling, a bracket adjustment tooling, and an elevator system. The elevator guide rail installation bracket includes a guide rail bracket having a guide rail installation surface and a first adjustment surface that form a bend, a fixed guide rail installation position is provided on the guide rail installation surface; and a hoistway bracket having a hoistway installation surface and a second adjustment surface that form a bend; the first adjustment surface is adjustably connected to the second adjustment surface to adjust the relative position between the guide rail installation surface and the hoistway installation surface.
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公开(公告)号:US20220219940A1
公开(公告)日:2022-07-14
申请号:US17520362
申请日:2021-11-05
Applicant: Otis Elevator Company
Inventor: Bichun Li , Shenhong Wang
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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