公开(公告)号：US11435759B2

公开(公告)日：2022-09-06

申请号：US16398791

申请日：2019-04-30

Applicant: LG ELECTRONICS INC.

Inventor： Donghoon Kwak ,  Jaehwan Ko ,  Hyukdo Kweon

IPC: G05D1/02 ,  G01S5/02

Abstract: A plurality of autonomous mobile robots includes a first mobile robot provided with a transmitting sensor for outputting sound wave of a first frequency, and a first module for transmitting and receiving a signal of a second frequency higher than the first frequency. A second mobile robot is provided with a receiving sensor for receiving the sound wave of the first frequency and a second module for transmitting and receiving the signal of the second frequency. A control unit of the second mobile robot synchronizes an output time of the sound wave of the first frequency from the first mobile robot using the signal of the second frequency, and determines a relative position of the first mobile robot using the sound wave of the first frequency.

公开(公告)号：US11169539B2

公开(公告)日：2021-11-09

申请号：US16398761

申请日：2019-04-30

Applicant: LG ELECTRONICS INC.

Inventor： Donghoon Kwak ,  Jaehwan Ko ,  Hyukdo Kweon

IPC: G05D1/02 ,  G06K7/10 ,  G01S5/02

Abstract: A plurality of autonomous mobile robots includes a first mobile robot having a first module for transmitting and receiving an Ultra-Wideband (UWB) signal, and a second mobile robot having a second module for transmitting and receiving the UWB signal. The second mobile robot follows the first mobile robot using the UWB signal.

公开(公告)号：US11148290B2

公开(公告)日：2021-10-19

申请号：US16401666

申请日：2019-05-02

Applicant: LG Electronics Inc.

Inventor： Donghoon Kwak ,  Jaehwan Ko ,  Hyukdo Kweon

IPC: A47L5/22 ,  B25J9/16 ,  B25J11/00 ,  B25J9/00 ,  A47L11/40

Abstract: A mobile robot may include a traveling unit configured to move a main body; a communication unit configured to communicate with another mobile robot that emits a signal; and a controller configured to recognize the location of the another mobile robot based on the signal, and control the moving of the another mobile robot to follow along a moving path of the main body based on the recognized location. In addition, the controller may transmit a signal corresponding to a change of the moving direction to the main body in response to the change of the moving direction, and sense a change in the receiving direction of the signal according to the change of moving direction to transmit a control command for restricting the follow-up to the another mobile robot.

公开(公告)号：US10582822B2

公开(公告)日：2020-03-10

申请号：US15445214

申请日：2017-02-28

Applicant: LG ELECTRONICS INC.

Inventor： Jungkyu Son ,  Bohyun Nam ,  Jaeyong Park ,  Sehwan Bae ,  Jonghyun Seo ,  Jinwoo Lee ,  Donghoon Kwak ,  Jaehwan Ko

IPC: A47L9/28 ,  A47L9/12 ,  A47L9/14 ,  A47L9/24 ,  A47L5/36 ,  A47L9/00 ,  A47L9/10 ,  A47L9/16 ,  A47L9/22 ,  A47L9/32

Abstract: A vacuum cleaner includes a cleaner body, a suction hose mounted at a front surface of the cleaner body to suck in dust, moving wheels provided at both sides of the cleaner body, rotating to move the cleaner body and rotatably supporting the cleaner body, wheel motors connected to the moving wheels and rotating the moving wheels, a detecting unit provided in the cleaner body and sensing inclination of the cleaner body to determine whether the cleaner moves and stops, a plurality of detecting members provided at a front surface of the cleaner body and located at both sides of the suction hose to detect an obstacle, and a controller for controlling the wheel motors according to detected signals of the detecting unit and the obstacle detecting members.

公开(公告)号：US12001223B2

公开(公告)日：2024-06-04

申请号：US17498985

申请日：2021-10-12

Applicant: LG ELECTRONICS INC.

Inventor： Donghoon Kwak ,  Jaehwan Ko ,  Hyukdo Kweon

IPC: G05D1/00 ,  G01S5/02 ,  G06K7/10

CPC classification number: G05D1/0295 ,  G01S5/0284 ,  G05D1/028 ,  G06K7/10306

Abstract: A plurality of autonomous mobile robots includes a first mobile robot having a first module for transmitting and receiving an Ultra-Wideband (UWB) signal, and a second mobile robot having a second module for transmitting and receiving the UWB signal. The second mobile robot follows the first mobile robot using the UWB signal.

公开(公告)号：US11877713B2

公开(公告)日：2024-01-23

申请号：US17640501

申请日：2019-10-01

Applicant: LG ELECTRONICS INC.

Inventor： Donghoon Kwak ,  Jaehwan Ko ,  Hyeokjoo Yun

IPC: A47L5/24 ,  A47L9/28

CPC classification number: A47L5/24 ,  A47L9/2884

Abstract: According to an embodiment of the present disclosure, provided is a cleaner which comprises: a main body having a cylindrical shape; a cyclone unit which is provided inside the main body so as to separate dust from air suctioned into the main body; an extension duct which communicates with the cyclone part and extends from the main body; a suction nozzle which is coupled to the extension duct and suctions dust; a first battery unit which extends from the main body and supplies electric power so that the cyclone unit can suction air; and a second battery unit which supplies electric power to the cyclone unit and is slidably coupled to the extension duct. According to an embodiment of the present disclosure, the usage time of the cleaner can be increased, and the fatigue that a user feels can be minimized even when the usage time is increased.

公开(公告)号：US11231720B2

公开(公告)日：2022-01-25

申请号：US16300218

申请日：2017-05-10

Applicant: LG ELECTRONICS INC.

Inventor： Sihyuk Yi ,  Jaehwan Ko ,  Hyukdo Kweon

IPC: B25J5/00 ,  G05D1/02 ,  A47L9/28 ,  A47L11/40 ,  B25J11/00 ,  B25J19/02

Abstract: A moving robot comprises a floor sensing unit comprised of a plurality of transmitters, for which different sensing distances are set, and a single receiver, and, since a floor state is sensed using a plurality of sensors, it is possible to sense a normal floor states, an obstacle or a cliff present on a floor, and a long-distance state at a distance farther than the normal floor state, thereby preventing wrong sensing of a cliff due to an obstacle, and, since whether to keep traveling is set depending on the obstacle and a traveling speed is controlled, even an area previously not allowed to enter due to the wrong sensing may be cleaned and therefore a cleaning area may be increased.

公开(公告)号：US11150668B2

公开(公告)日：2021-10-19

申请号：US16401232

申请日：2019-05-02

Applicant: LG Electronics Inc.

Inventor： Donghoon Kwak ,  Jaehwan Ko ,  Hyukdo Kweon

IPC: B25J11/00 ,  B25J9/16 ,  G05D1/02

Abstract: A mobile robot according to an embodiment of the present disclosure may include a traveling unit configured to move a main body; a memory configured to store trajectory information of a moving path corresponding to the movement of the main body; a communication unit configured to communicate with another mobile robot that emits a signal; and a controller configured to recognize the location of the another mobile robot based on the signal, and control the another mobile robot to follow a moving path corresponding to the stored trajectory information based on the recognized location. In addition, the controller may control the moving of the another mobile robot to remove at least part of the stored trajectory information, and allow the another mobile robot to follow a moving path corresponding to the remaining trajectory information in response to whether the moving path corresponding to next trajectory information to be followed by the another mobile robot satisfies a specified condition.

公开(公告)号：US20190110654A1

公开(公告)日：2019-04-18

申请号：US15895198

申请日：2018-02-13

Applicant: LG ELECTRONICS INC.

Inventor： Donghoon Kwak ,  Jaehwan Ko ,  Hyukdo Kweon

IPC: A47L9/28 ,  A47L5/00 ,  A47L11/40

Abstract: The present disclosure relates to a cleaner according to one embodiment, which includes a cleaner body, a grip member disposed on the cleaner body to be gripped by a user, a pressure sensor part disposed in the grip member to detect pressure applied by the user to a part of an outer surface of the grip member, a driving unit disposed at a lower portion of the cleaner body to move the cleaner body, and a controller to control the driving unit based on the detected pressure.