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:
Sep. 02, 2025

Filed:

Oct. 06, 2020
Applicant:

Lg Electronics Inc., Seoul, KR;

Inventor:

Byoungsuk Choi, Seoul, KR;

Assignee:

LG ELECTRONICS INC., Seoul, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A47L 11/40 (2006.01); G05D 1/00 (2024.01);
U.S. Cl.
CPC ...
A47L 11/4011 (2013.01); G05D 1/0225 (2013.01); G05D 1/0238 (2013.01); G05D 1/0242 (2013.01); A47L 2201/02 (2013.01); A47L 2201/022 (2013.01); A47L 2201/04 (2013.01); A47L 2201/06 (2013.01);
Abstract

The present disclosure relates to a method for controlling a robot cleaner and, more particularly, to a method for controlling a robot cleaner including a plurality of obstacle detection sensors, the method for controlling the robot cleaner to execute the operations comprising: a first step for approaching a charging device for the robot cleaner according to an IR signal transmitted from the charging device for the robot cleaner including a charging terminal for charging the robot cleaner; a second step for checking whether the shortest distance between the robot cleaner and the charging device for the robot cleaner is less than or equal to a first distance through the plurality of obstacle detection sensors; a third step for checking whether the center lines of the robot cleaner and the charging device for the robot cleaner are aligned through the plurality of obstacle detection sensors, and aligning the center lines of the robot cleaner and the charging device for the robot cleaner; and a fourth step for, when the center lines of the robot cleaner and the charging device for the robot cleaner have been aligned, moving the robot cleaner straight toward the charging device for the robot cleaner.


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