公开(公告)号：US20200077861A1

公开(公告)日：2020-03-12

申请号：US16508487

申请日：2019-07-11

Applicant: LG ELECTRONICS INC.

Inventor： Donghoon KWAK ,  Kyoungsuk KO ,  Sungwook LEE

IPC: A47L11/40 ,  G05D1/02

Abstract: A cleaning system may include a first mobile robot, a communication unit configured to communicate with a second mobile robot that emits a second signal, and a controller configured to recognize the location of the second mobile robot using the second signal, and control a moving speed of the first mobile robot such that the second mobile robot follows a trajectory corresponding to the movement of the first mobile robot based on the recognized location. The controller may transmit a first signal to the second mobile robot in response to the first mobile robot approaching the second mobile robot to within a distance less than a threshold distance from the second mobile robot, and control avoidance moving of the first mobile robot and the second mobile robot based on the second signal of the second mobile robot responding to the first signal.

公开(公告)号：US20190339713A1

公开(公告)日：2019-11-07

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：US20190339690A1

公开(公告)日：2019-11-07

申请号：US16398931

申请日：2019-04-30

Applicant: LG ELECTRONICS INC.

Inventor： Donghoon KWAK ,  Hyukdo KWEON ,  Jaehwan KO

IPC: G05D1/00 ,  G05D1/02

Abstract: A plurality of autonomous mobile robots include a first mobile robot and a second mobile robot. The first mobile robot is provided with a plurality of transmitting optical sensors for outputting light and a first module for transmitting and receiving a Ultra-Wideband (UWB) signal. The second mobile robot is provided with a plurality of receiving optical sensors for receiving light and a second module for transmitting and receiving the UWB signal. A control unit of the second mobile robot determines an angle at which the first mobile robot is located with respect to a front of the second mobile robot using the light. The control unit also determines a distance from the second mobile robot to the first mobile robot using the UWB signal, and determines a relative position of the first mobile robot based on the angle and the distance.

公开(公告)号：US20180192843A1

公开(公告)日：2018-07-12

申请号：US15744413

申请日：2016-07-05

Applicant: LG Electronics Inc.

Inventor： Donghoon KWAK

IPC: A47L9/28

CPC classification number: A47L9/2863 ,  A47L9/2805 ,  A47L9/2852 ,  Y02B40/82

Abstract: A cleaner includes a cleaner body, a handle, an input unit located at the handle, one or more wheels configured to drive the cleaner body, a motor configured to provide force to the one or more wheels, and a control unit configured to control rotation of the motor based on an input to the input unit. The input unit is positioned at a portion of the handle configured to be held by a user's hand, and includes a lever connected to the cleaner body and configured to rotate about a horizontal axis and a vertical axis with respect to the cleaner body, and a sensor located at the lever and configured to detect a vertical rotation of the lever about the horizontal axis.

公开(公告)号：US20180177360A1

公开(公告)日：2018-06-28

申请号：US15739513

申请日：2016-06-21

Applicant: LG ELECTRONICS INC.

Inventor： Donghoon KWAK ,  Jaehwan KO ,  Sihyuk YI

IPC: A47L9/00 ,  A47L9/28 ,  G05D1/02

CPC classification number: A47L9/009 ,  A47L5/362 ,  A47L5/365 ,  A47L9/28 ,  A47L9/2805 ,  A47L9/2852 ,  A47L9/2889 ,  A47L2201/04 ,  G05D1/0242 ,  G05D1/0255 ,  G05D2201/0215

Abstract: A vacuum cleaner according to an embodiment of the present invention includes a cleaner body having a moving unit; a suction unit configured to suction dust and air; a detecting unit configured to detect movement of the suction unit; and a control part configured to determine whether movement of the cleaner body is required, based on information detected by the suction unit, and to control the moving unit when the movement of the cleaner body is required, wherein the control part determines a target location to which the cleaner body will be moved, determines a moving route to the target location based on a detected obstacle, controls the moving unit so that the cleaner body is moved along the determined moving route, stops a motor when it is determined that the cleaner body is not in contact with a floor surface, and thus prevents a user's injury.

公开(公告)号：US20170354304A1

公开(公告)日：2017-12-14

申请号：US15539930

申请日：2015-12-08

Applicant: LG ELECTRONICS INC.

Inventor： Donghoon KWAK

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

CPC classification number: A47L9/2852 ,  A47L5/36 ,  A47L5/362 ,  A47L9/009 ,  A47L9/102 ,  A47L9/12 ,  A47L9/1409 ,  A47L9/2805 ,  A47L9/2884 ,  A47L2201/04

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：US20170245711A1

公开(公告)日：2017-08-31

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

CPC classification number: A47L9/2852 ,  A47L5/362 ,  A47L9/00 ,  A47L9/0081 ,  A47L9/009 ,  A47L9/108 ,  A47L9/122 ,  A47L9/1608 ,  A47L9/1683 ,  A47L9/22 ,  A47L9/242 ,  A47L9/28 ,  A47L9/2805 ,  A47L9/2857 ,  A47L9/2884 ,  A47L9/327

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.