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公开(公告)号：US20240417221A1
公开(公告)日：2024-12-19
申请号：US18512990
申请日：2023-11-17
Applicant: Otis Elevator Company
Inventor： Wentong Liu , Lifei Cheng , Zhaoxia Hu
Abstract: An automatic conveying device, a method for determining the presence of an external object, and an automatic start method. The automatic conveying device includes a first end and a second end opposite to each other; and a middle section between the first end and the second end; the automatic conveying device further including one or more first detection devices arranged on one or both sides of the automatic conveying device, each first detection device has a detection range that is substantially a plane area, and the detection range of each first detection device covers at least a portion of the middle section; and a processor connected to the one or more first detection devices, and configured to determine, based at least partially on signals detected by the one or more first detection devices, whether an external object is present on the automatic conveying device.
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公开(公告)号：US20240367944A1
公开(公告)日：2024-11-07
申请号：US18510198
申请日：2023-11-15
Applicant: Otis Elevator Company
Inventor： Xinwei Gong , Lifei Cheng , Zhaoxia Hu
Abstract: An automatic conveying device and a maintenance method therefor. The automatic conveying device includes a fixed step drive wheel, and a step driven wheel located on a movable bracket; a step chain in transmission connection with the step drive wheel and the step driven wheel; a tensioning device that acts on the movable bracket to maintain the step chain in tension; a sensor device that detects a displacement of the movable bracket; and a processor configured to send a first warning signal when a single-trip displacement of the movable bracket exceeds a first threshold, and to send a second warning signal when a accumulative displacement of the movable bracket exceeds a second threshold.
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公开(公告)号：US11993486B2
公开(公告)日：2024-05-28
申请号：US17945478
申请日：2022-09-15
Applicant: Otis Elevator Company
Inventor： Lifei Cheng , Zhaoxia Hu , Xinwei Gong
IPC: B66B25/00
CPC classification number: B66B25/003 , B66B25/006
Abstract: The present application relates to a control system and a method for controlling a passenger conveying apparatus, and a computer-readable storage medium for implementing the method. A control apparatus for a passenger conveying apparatus according to an aspect of the present application comprises: a processor; a memory coupled with the processor; a communication module coupled with the processor; and a computer program stored on the memory and running on the processor, the running of the computer program causes: in response to an internal control command of the control apparatus or an external control command outside the control apparatus, determining whether there is a passenger boarding signal in the passenger conveying apparatus within a specified time interval, wherein the internal control command and the external control command comprise commands for starting or stopping the passenger conveying apparatus; and manipulating the passenger conveying apparatus based on the determining.
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公开(公告)号：US20230094547A1
公开(公告)日：2023-03-30
申请号：US17945478
申请日：2022-09-15
Applicant: Otis Elevator Company
Inventor： Lifei Cheng , Zhaoxia Hu , Xinwei Gong
IPC: B66B25/00
Abstract: The present application relates to a control system and a method for controlling a passenger conveying apparatus, and a computer-readable storage medium for implementing the method. A control apparatus for a passenger conveying apparatus according to an aspect of the present application comprises: a processor; a memory coupled with the processor; a communication module coupled with the processor; and a computer program stored on the memory and running on the processor, the running of the computer program causes: in response to an internal control command of the control apparatus or an external control command outside the control apparatus, determining whether there is a passenger boarding signal in the passenger conveying apparatus within a specified time interval, wherein the internal control command and the external control command comprise commands for starting or stopping the passenger conveying apparatus; and manipulating the passenger conveying apparatus based on the determining.
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公开(公告)号：US12122640B2
公开(公告)日：2024-10-22
申请号：US18070861
申请日：2022-11-29
Applicant: Otis Elevator Company
Inventor： Xinwei Gong , Lifei Cheng , Kaisheng Xu , Zhaoxia Hu
Abstract: A heating control apparatus and method for an escalator system or automatic walkway system, an escalator system and automatic walkway system including the heating control apparatus, and a computer-readable storage medium on which a computer program for implementing the method is stored. A heating control apparatus for an escalator system or automatic walkway system includes: memory; a processor coupled with the memory; and a computer program stored on the memory and running on the processor, the running of the computer program causes: A. obtaining ambient status and device status of the escalator system or automatic walkway system, the ambient status includes ambient temperature and ambient humidity; and B. generating a control command regarding a heater of the escalator system or automatic walkway system based on the ambient status and the device status.
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Patent Agency Ranking
6.发明公开公开(公告)号：US20240253951A1
公开(公告)日：2024-08-01
申请号：US18510097
申请日：2023-11-15
Applicant: Otis Elevator Company
Inventor： Wentong Liu , Lifei Cheng , Zhaoxia Hu , Kaisheng Xu
CPC classification number: B66B25/003 , B66B23/02 , H02P23/14
Abstract: A method includes determining a load value of a system; and determining a current operating mode of a three-phase motor in the following manner: if the load value is below a first threshold, determining a variable frequency mode as the current operating mode, if the load value is between the first threshold and a second threshold, determining a first operating frequency mode as the current operating mode, and if the load value exceeds the second threshold, determining a second operating frequency mode as the current operating mode, the second threshold is greater than the first threshold, the windings of the three-phase motor are wired in a star wiring method and in a triangular wiring method in the first and second operating frequency modes, respectively.
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7.发明授权公开(公告)号：US11764716B1
公开(公告)日：2023-09-19
申请号：US17988456
申请日：2022-11-16
Applicant: Otis Elevator Company
Inventor： Lifei Cheng , Zhaoxia Hu , Xinwei Gong , Wentong Liu
CPC classification number: H02P23/08 , B66B25/00 , H02P25/184 , H02P2207/01
Abstract: A device and method for determining operating modes of an AC asynchronous three-phase motor in an escalator system and computer-readable storage medium on which a computer program for implementing the method is stored. The operating modes include a first operating mode and a second operating mode, the AC asynchronous three-phase motor adopts a triangular wiring mode and a star wiring mode in the first operating mode and the second operating mode, respectively, the device includes: a memory; a processor coupled with the memory; and a computer program stored on the memory and running on the processor, the running of the computer program causes: A. obtaining a slip rate of the AC asynchronous three-phase motor; and B. determining whether the AC asynchronous three-phase motor needs to be switched between the first operating mode and the second operating mode based on the slip rate.
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公开(公告)号：US11078050B2
公开(公告)日：2021-08-03
申请号：US16283238
申请日：2019-02-22
Applicant: Otis Elevator Company
Inventor： Lifei Cheng , Zhaoxia Hu
Abstract: A speed monitoring device and a passenger conveying device. The speed monitoring device includes a transmission rotor disposed on a shaft side surface of a shaft of which the speed is to be measured and rotating with rotation of the shaft of which the speed is to be measured; an encoder having an input shaft, the input shaft of the encoder being connected to the transmission rotor and rotating with rotation of the transmission rotor; and a mounting bracket for securing the transmission rotor and the encoder to a position where they are to be mounted.
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9.发明申请公开(公告)号：US20250145417A1
公开(公告)日：2025-05-08
申请号：US18928549
申请日：2024-10-28
Applicant: Otis Elevator Company
Inventor： Lifei Cheng , Pengpeng Xu , Zhaoxia Hu
Abstract: A control method for a conveyor device, which is applicable to a control system comprising a control terminal and one or more control nodes, each of the control nodes is in communication connection with the control terminal. The method includes controlling, by the control node that receives an operation signal, a movable device associated with the control node to reach a conveyor device to be controlled, in response to the operation signal sent by a control terminal; and determining whether to control the conveyor device to be controlled according to the indication of the operation signal, based on sensed data from a sensing device regarding the condition of an object to be conveyed on the conveyor device to be controlled.
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10.发明申请公开(公告)号：US20250033934A1
公开(公告)日：2025-01-30
申请号：US18771424
申请日：2024-07-12
Applicant: Otis Elevator Company
Inventor： Xinwei Gong , Lifei Cheng , Kaisheng Xu , Zhaoxia Hu
Abstract: A brake system for a conveyor system. The brake system includes a brake, a distance detection device and a controller. The brake includes a brake arm and a brake lining connected to the brake arm. The distance detection device is arranged on the brake for detecting a first distance and a second distance between the brake arm and a brake drum, where the first distance is a distance between the brake arm and the brake drum when the brake is in an open state, and the second distance is a distance between the brake arm and the brake drum when the brake is in a closed state. The controller is used for determining a brake performance of the brake based on a difference between the first distance and the second distance detected sequentially, and for generating and sending warning signals when the difference is not within a preset range.
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