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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.

Patent No.:

US 11760605 B1

PDFFull Text
Date of Patent:
Sep. 19, 2023

Filed:

May. 23, 2019

Elevator door monitoring system, elevator system and elevator door monitoring method

Applicant:

Otis Elevator Company, Farmington, CT (US);

Inventors:

Hui Fang, Shanghai, CN;

Zhen Jia, Shanghai, CN;

Walter Thomas Schmidt, Marlborough, CT (US);

Assignee:

OTIS ELEVATOR COMPANY, Farmington, CT (US);

Attorney:

CANTOR COLBURN LLP

Primary Examiner:

Jeffrey Donels

Int. Cl.
CPC ...
B66B 13/26 (2006.01); B66B 5/02 (2006.01); B66B 13/14 (2006.01); B66B 5/00 (2006.01); G06V 20/52 (2022.01); G06V 10/56 (2022.01); G06V 10/30 (2022.01); G06V 10/28 (2022.01); G06V 20/64 (2022.01);
U.S. Cl.
CPC ...
B66B 13/26 (2013.01); B66B 5/0031 (2013.01); B66B 5/02 (2013.01); B66B 13/146 (2013.01); G06V 10/28 (2022.01); G06V 10/30 (2022.01); G06V 10/56 (2022.01); G06V 20/52 (2022.01); G06V 20/64 (2022.01); G05B 2219/45242 (2013.01);
Abstract

The present invention relates to a system for monitoring an elevator door, an elevator system, and a method for monitoring an elevator door. The elevator door has an open state or a closed state implemented by moving along an elevator sill. The system for monitoring an elevator door includes: one or more imaging sensors configured to collect image data and depth data of at least one section in the elevator sill that is exposed when the elevator door is in the open state; and a data processing device in communication with the imaging sensor and configured to receive and process the image data and the depth data to determine whether an obstacle preventing the elevator door from entering the closed state exists in the section. By applying the present invention, the safety of the elevator door can be improved effectively, and equipment property losses and personal injuries can be avoided.

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