The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 19, 2026

Filed:

Oct. 14, 2022
Applicant:

Honeywell International Inc., Charlotte, NC (US);

Inventors:

En Yi Chen, Charlotte, NC (US);

Yang Lu, Charlotte, NC (US);

Wu Chen, Charlotte, NC (US);

Assignee:

HONEYWELL INTERNATIONAL INC., Charlotte, NC (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B66B 3/02 (2006.01); B66B 5/00 (2006.01); G01S 13/06 (2006.01);
U.S. Cl.
CPC ...
B66B 3/02 (2013.01); B66B 5/0018 (2013.01); G01S 13/06 (2013.01);
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.


Find Patent Forward Citations

Chen, En. (2026). Elevator positioning system with cascading reflector arrangement (U.S. Patent No. 12630391). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12630391

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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