公开(公告)号：US20220009109A1

公开(公告)日：2022-01-13

申请号：US17070343

申请日：2020-10-14

Applicant: LG ELECTRONICS INC.

Inventor： Jaemin Lee ,  Jeongwoo Ju

IPC: B25J13/08 ,  B25J9/16 ,  B25J5/00 ,  B25J9/12

Abstract: Disclosed is a control method of a moving robot configured to drive a work area where a plurality of beacons, the control method comprising a radio direction acquiring step of acquiring radio direction information from the beacons; a first distance tracking step of tracking first distance information between the moving robot and the beacons based on the radio direction information, after the radio direction acquiring step; a second distance tracking step of tracking second distance information between the moving robot and an object existing in the work area via a distance sensor provided in the moving robot; and a first comparison step of comparing the first distance information with the second distance information, wherein location recognition of the moving robot is performed based on the radio direction information, when the first distance is equal to the second distance based on the result of the first comparison step.

公开(公告)号：US11722024B2

公开(公告)日：2023-08-08

申请号：US17165329

申请日：2021-02-02

Applicant: LG Electronics Inc.

Inventor： Jaemin Lee ,  Youngjun Ahn ,  Kilyoung Kim ,  Junho Lee ,  Jihwan Kong ,  Taeseok Jeong

IPC: H02K1/27 ,  H02K1/276 ,  H02K21/16 ,  H02K11/215

CPC classification number: H02K1/2773 ,  H02K11/215 ,  H02K21/16

Abstract: Disclosed is an IPM motor that detects an accurate position of a rotor. The IPM motor includes a stator, a hub, a plurality of spokes extending outward in a radial direction from the hub, a plurality of slots defined between the spokes, a rotor rotatably installed in the stator, wherein the rotor includes a plurality of permanent magnets respectively arranged in the slots, a sensor disposed adjacent to the rotor, wherein the sensor is configured to detect a position of each permanent magnet, and a cover disposed on the rotor to cover the rotor, wherein the cover is constructed to guide magnetic flux of each permanent magnet to the sensor at a specific point of the slot of the rotor.

公开(公告)号：US11669106B2

公开(公告)日：2023-06-06

申请号：US17070343

申请日：2020-10-14

Applicant: LG ELECTRONICS INC.

Inventor： Jaemin Lee ,  Jeongwoo Ju

IPC: G05D1/02

CPC classification number: G05D1/028 ,  G05D1/0242

Abstract: Disclosed is a control method of a moving robot configured to drive a work area where a plurality of beacons, the control method comprising a radio direction acquiring step of acquiring radio direction information from the beacons; a first distance tracking step of tracking first distance information between the moving robot and the beacons based on the radio direction information, after the radio direction acquiring step; a second distance tracking step of tracking second distance information between the moving robot and an object existing in the work area via a distance sensor provided in the moving robot; and a first comparison step of comparing the first distance information with the second distance information, wherein location recognition of the moving robot is performed based on the radio direction information, when the first distance is equal to the second distance based on the result of the first comparison step.