公开(公告)号：US09974422B2

公开(公告)日：2018-05-22

申请号：US14466041

申请日：2014-08-22

Applicant: LG Electronics Inc.

Inventor： Haesoo Lee ,  Seunghoe Choe ,  Kangyoul Lee ,  Weonho Bae ,  Minjung Kang

IPC: A47L9/28 ,  B25J9/00 ,  G05D1/02

CPC classification number: A47L9/2805 ,  A47L9/2815 ,  A47L9/2852 ,  A47L9/2894 ,  A47L2201/04 ,  B25J9/0003 ,  G05D1/0231 ,  G05D1/0246 ,  G05D1/0255 ,  G05D2201/0203 ,  Y10S901/01 ,  Y10S901/46 ,  Y10S901/47

Abstract: A robot cleaner having a monitoring function and minimizing power consumption and/or securing communication efficiency and a method of controlling a robot cleaner are provided. The robot cleaner may include at least one sound obtaining device; at least one image obtaining device; and a controller configured to determine whether a sound obtained through the at least one sound obtaining device is abnormal, sense a direction in which an abnormal sound is generated, and obtain images in the direction in which the abnormal sound is generated. The robot cleaner may automatically recognize a surrounding situation, and when necessary, the robot cleaner may rotate and/or move in a corresponding direction and/or position to obtain images or transmit the obtained images to a remote terminal, thereby minimizing power consumption of the robot cleaner with limited power.

公开(公告)号：US11201757B2

公开(公告)日：2021-12-14

申请号：US16376885

申请日：2019-04-05

Applicant: LG ELECTRONICS INC.

Inventor： Sang Won Kim ,  Seunghoe Choe

IPC: H04L12/28 ,  G01R11/52 ,  H05B1/02

Abstract: A wireless electric power sensing device can include a communication unit configured to communicate with an external device; a measuring unit configured to measure power consumption information corresponding to a plurality of devices located within a target space; and a central control unit configured to detect a point in time when one or more square waves are included in the power consumption information, determine reactive power based the power consumption information, identify an electric heating device from among the plurality of devices within the target space based on a rate of change in the reactive power, determine when an operation time of the electric heating device exceeds a predetermined amount of time based on a change in the power consumption information, and in response to the operation time of the of the electric heating device exceeding the predetermined amount of time, transmit, via the communication unit, identification information for the electric heating device and information about the operation time of the electric heating device to the external device.