公开(公告)号：US10349795B2

公开(公告)日：2019-07-16

申请号：US15539930

申请日：2015-12-08

Applicant: LG ELECTRONICS INC.

Inventor： Donghoon Kwak

IPC: G06F19/00 ,  A47L9/28 ,  A47L5/36 ,  A47L9/00 ,  A47L9/10 ,  A47L9/12 ,  A47L9/14

Abstract: Provided is an autonomous mobile cleaner including a main body, a suction unit having a handle and configured to suck up surrounding foreign material, an air pipe configured to connect the main body and the suction unit and guide the foreign material into the main body, at least one driving wheel installed below the main body, a driving unit configured to drive the driving wheel by operating a driving motor, a wheel sensor configured to sense rotation of the driving wheel, and a controller configured to control the movement of the main body through the driving unit on the basis of the rotation of the driving wheel sensed by the wheel sensor.

公开(公告)号：US10238258B2

公开(公告)日：2019-03-26

申请号：US15521036

申请日：2015-09-16

Applicant: LG ELECTRONICS INC.

Inventor： Donghoon Kwak

IPC: A47L9/28 ,  A47L9/00 ,  G05D1/00 ,  G05D1/02

Abstract: Disclosed is a robot cleaner including a main body forming an appearance, at least one driving wheel installed on a lower portion of the main body, a driving unit configured to drive the driving wheel according to an operation of a driving motor, a first obstacle sensor positioned on the lower portion of the main body and configured to sense an obstacle on the floor, and a control unit configured to, when the sensed obstacle on the floor has a preset pattern, limit driving of the at least one driving wheel such that the at least one driving wheel is not hindered by the preset pattern when the main body rotates on the preset pattern according to driving of the at least one driving wheel.

公开(公告)号：US11906979B2

公开(公告)日：2024-02-20

申请号：US17586135

申请日：2022-01-27

Applicant: LG Electronics Inc.

Inventor： Donghoon Kwak ,  Kyoungsuk Ko ,  Sungwook Lee

IPC: B25J9/16 ,  G05D1/00 ,  B25J9/00

CPC classification number: G05D1/0287 ,  B25J9/0084 ,  B25J9/1666

Abstract: A mobile robot includes a communication unit that communicates with another mobile robot, a sensing unit for sensing the other mobile robot existing in a detection area encompassing a predetermined projected angle with respect to the front of a main body of the mobile robot, and a control unit configured for rotating the main body so that the other mobile robot is sensed in the detection area. The communication unit transmits a control signal configured to cause the other mobile robot to travel in a linear direction by a predetermined distance, to the other mobile robot when the other mobile robot is present in the detection area.

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：US11256250B2

公开(公告)日：2022-02-22

申请号：US16559030

申请日：2019-09-03

Applicant: LG Electronics Inc.

Inventor： Donghoon Kwak ,  Kyoungsuk Ko ,  Sungwook Lee

IPC: G05D1/00 ,  G05D1/02 ,  G01S13/02 ,  A47L11/40 ,  B25J11/00

Abstract: The present disclosure relates to a plurality of autonomous mobile robots. A plurality of autonomous mobile robots comprise a first mobile robot including an antenna configured to transmit and receive signals, and a second mobile robot including a first antenna and a second antenna disposed on a front area of a main body thereof to transmit and receive signals to and from the antenna of the first mobile robot. The second mobile robot comprises a control unit configured to determine a relative position of the first mobile robot using the signal received by the first antenna and the second antenna.

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：US10932637B2

公开(公告)日：2021-03-02

申请号：US15741514

申请日：2016-07-01

Applicant: LG ELECTRONICS INC.

Inventor： Donghoon Kwak

IPC: A47L9/28 ,  A47L9/32 ,  G05B15/02

Abstract: Disclosed is a cleaner comprising a cleaner body, a handle provided in the cleaner body, a wheel provided in a lower portion of the cleaner body and rotatably supporting the cleaner body, a motor driving the wheel electrically, an encoder sensing the rotation number of the wheel or the motor, and a controller controlling the driving of the motor by varying the voltage applied to the motor based on the rotation number sensed by the encoder, wherein the controller electrically drives the wheel by applying voltage to the motor when the velocity of the cleaner body initially moving is a preset value or more, and a controlling method for the cleaner.

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.