公开(公告)号：US20240061077A1

公开(公告)日：2024-02-22

申请号：US18364956

申请日：2023-08-03

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： Yang LU ,  Jiankang YU ,  Fan YANG ,  Yu HU

IPC: G01S7/40 ,  G01S7/41 ,  G01S7/497 ,  G01S13/08

CPC classification number: G01S7/4021 ,  G01S7/412 ,  G01S7/4972 ,  G01S13/08 ,  B66B5/0006

Abstract: Systems and methods for training a radar sensor to determine positioning of an elevator car within an elevator system are provided. The method comprises calibrating a target reflector signal, calibrating one or more reference reflector signals, comparing frequencies of the target reflector signal and the one or more reference reflector signals, determining for each of the one or more reference reflector signals, a frequency distance between the target reflector signal and the reference reflector signal, and generating a distance measuring signal pattern based on the frequency distance of each of the one or more reference reflector signals.

公开(公告)号：US20230133336A1

公开(公告)日：2023-05-04

申请号：US18046570

申请日：2022-10-14

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： En Yi CHEN ,  Yang LU ,  Wu CHEN

IPC: B66B3/02 ,  G01S13/06 ,  B66B5/00

Abstract: Various embodiments are directed to determining an elevator car position within an elevator shaft using radar-based distance measurements and a plurality of radar reflectors positioned along the elevator shaft. In one aspect, an example method is provided. The method includes associating a height segment of the elevator shaft with each of the plurality of radar reflectors. The method further includes selecting a target reflector from the plurality of radar reflectors based at least in part on an initial height of the elevator car being within a height segment associated with the target reflector. The method further includes determining an inferred position of the elevator car within the elevator shaft based at least in part on determining a radar-based distance measurement to the target reflector. The radar reflectors may be positioned such that at least one radar reflector is optimally detectable by a dynamically-positioned radar transceiver of the elevator car.

公开(公告)号：US20220306427A1

公开(公告)日：2022-09-29

申请号：US17449745

申请日：2021-10-01

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： Enyi CHEN ,  Yu HU ,  Yang LU

IPC: B66B1/34 ,  B66B1/24

Abstract: Various embodiments are directed to an elevator positioning system, comprising: a transceiver disposed within an elevator shaft; a first positioning element; a second positioning element; and a controller communicably coupled to the transceiver, wherein the controller is configured to: determine a first distance between the transceiver and the first positioning element; determine a calibration distance between the transceiver and the second positioning element based at least in part on a second reflection detected by the transceiver from the second positioning element at a first instance; based at least in part on the first distance and the calibration distance, calculate an adjusted elevator car position defined at least in part by a shaft displacement compensation distance; and cause an elevator car to move about a vertical axis of the elevator shaft to a vertical position within the elevator shaft that corresponds at least in part to the adjusted elevator car position.

公开(公告)号：US20230139261A1

公开(公告)日：2023-05-04

申请号：US18046574

申请日：2022-10-14

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： En Yi CHEN ,  Yang LU ,  Hong Lei JIANG

IPC: B66B5/00 ,  G01S13/06

Abstract: Various embodiments are directed to determining an elevator car position within an elevator shaft using footprint representations or descriptions of frequency spectrum data at reference positions along the elevator shaft. In one aspect, an example method is provided. The method includes determining reference frequency spectrum data for each of a plurality of reference positions along the elevator shaft and generating a footprint associated with each reference position based at least in part on a plurality of frequency peaks within the reference frequency spectrum data for each reference positions. The method further includes obtaining real-time frequency spectrum data associated with the elevator car within the elevator shaft and determining an estimated position of the elevator car based at least in part on comparing the real-time frequency spectrum data with a plurality of footprints associated with the plurality of reference positions.

公开(公告)号：US20230137593A1

公开(公告)日：2023-05-04

申请号：US18049023

申请日：2022-10-24

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： En Yi CHEN ,  Yang LU ,  Ming Zhou YAN

IPC: B66B1/34 ,  G01S7/02 ,  G02B5/09

Abstract: Various embodiments are directed to a radar reflector configured for radar-based distance measurements for determining a position of an elevator car within an elevator shaft. The radar reflector comprises three or more triangular panels defining a pyramidal frustum volume having a base plane and an upper plane that are parallel. The pyramidal frustum volume is configured to directly reflect radar signals originating from a radar transceiver back to the radar transceiver based at least in part on the triangular panels being mutually perpendicular at a projected apex above the upper plane. The reflected radar signals reflected by the radar reflector have substantially parallel trajectories with the original, pre-reflected radar signals emitted by the radar transceiver. The triangular panels of the radar reflector being mutually perpendicular advantageously maintains direct reflection of radar signals in spite of any potential horizontal tilt of the radar reflector to a certain extent.