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US007613544B2

(12) United States Patent

Park et al.

(io) Patent No.: (45) Date of Patent:

US 7,613,544 B2 Nov. 3, 2009

(54) MOBILE ROBOT, AND SYSTEM AND

METHOD FOR AUTONOMOUS NAVIGATION
OF THE SAME

(75) Inventors: Dong-ryeol Park, Gyeonggi-do (KR);

Seok-won Bang, Gangnam-gu (KR)

(73) Assignee: Samsung Electronics Co., Ltd.,

Suwon-Si (KR)

( * ) Notice: Subject to any disclaimer, the term of this patent is extended or adjusted under 35 U.S.C. 154(b) by 1029 days.

(21) Appl.No.: 10/753,403

(22) Filed: Jan. 9, 2004

(65) Prior Publication Data

US 2004/0202351 Al Oct. 14, 2004

(30) Foreign Application Priority Data

Jan. 11,2003 (KR) 10-2003-0001828

(51) Int. CI.

G06F19/00 (2006.01)

(52) U.S. CI 700/245; 700/251; 700/259;

701/25; 701/207; 701/223; 701/225; 701/300

(58) Field of Classification Search 701/207,

701/223, 225, 300, 208, 25; 700/245, 251,

700/259

See application file for complete search history. (56) References Cited

U.S. PATENT DOCUMENTS

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Disclosed herein is a mobile robot, and system and method for autonomous navigation of the same. The mobile robot includes a communications module for transmitting a light source control signal to selectively control light sources of a landmark array to flicker, an image processing module for calculating image coordinates of the light sources from an image signal, a pose calculation module for calculating position coordinates of the mobile robot, a motion control module for calculating a moving path and controlling the mobile robot to move along the moving path, and a main control module for controlling interoperations of the modules and general operations of the mobile robot.

20 Claims, 6 Drawing Sheets

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Page 2

U.S. PATENT DOCUMENTS 2004/0167670 Al * 8/2004 Goncalves et al 700/259

FOREIGN PATENT DOCUMENTS

EP 0 264 331 Bl 11/1992

EP 0662618 A 1/1994

JP 2000-056006 A 2/2000

JP 2001-142532 A 5/2001

JP 2002-073170 A 3/2002

KR 2002-39806 5/2002

WO WO86/06500 11/1986

OTHER PUBLICATIONS

Gonzalez, Rafael C. and Richard E. Woods, Digital Image Processing, 1993, 6 pages (including pp. 40-43, Addison-Wesley Publishing Company, Reading, Massachusetts.

Office Action issued by the Japanese Patent Office on Jun. 26,2007 in corresponding Japanese Patent Application No. 2004-006104.

* cited by examiner

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