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公开(公告)号：US11182625B2
公开(公告)日：2021-11-23
申请号：US16500672
申请日：2018-02-19
Applicant: LG ELECTRONICS INC.
Inventor： Changhyeon Lee , Byungkon Sohn
Abstract: The present disclosure relates to a method for identifying an obstacle on a driving ground and a robot for implementing the same, and according to one embodiment of the present disclosure, the method for identifying an obstacle on a driving ground comprises the steps of allowing: a sensing module of the robot to sense the depths of objects in a driving direction so as to generate first depth information; a plane analysis unit of the sensing module to calibrate second depth information by using ground information stored by a map storage of the robot so as to generate the first depth information; a control unit to identify an obstacle from the second depth information; and the control unit to store position information of the identified obstacle in a temporary map of the map storage.
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公开(公告)号：US20180184585A1
公开(公告)日：2018-07-05
申请号：US15856404
申请日：2017-12-28
Applicant: LG ELECTRONICS INC.
Inventor： Hyunsup Song , Changhyeon Lee
CPC classification number: A01D34/008 , A01D34/73 , A01D34/74 , A01D34/78 , A01D34/81 , A01D2101/00
Abstract: The present disclosure relates to a lawn mower robot, including an inner body provided with casters and wheels for moving on both sides, respectively; a plurality of blades rotatably provided on a bottom surface of the inner body to cut grass; a drive motor mounted on the wheels, respectively, to independently drive the wheels; an outer cover configured to surround an outer side of the inner body, and mounted on the inner body to be movable in forward, backward, leftward and rightward directions with respect to the inner body when colliding with an obstacle; a plurality of ultrasonic sensors provided at a front side of the outer cover to sense an obstacle in front; and an ultrasonic guide unit formed to be recessed rearward from a front end portion of the outer cover so as to restrict a downward propagation angle of ultrasonic waves generated from the ultrasonic sensors.
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3.发明授权公开(公告)号：US11480975B2
公开(公告)日：2022-10-25
申请号：US16765405
申请日：2019-09-20
Applicant: LG ELECTRONICS INC.
Inventor： Changhyeon Lee , Woo Hong
Abstract: A method for adaptively operating a cleaning robot based on height difference between floors and the cleaning robot are provided, and according to an embodiment of the present disclosure, the cleaning robot that adaptively operates based on the height difference between the floors includes a central controller that controls a height adjuster that controls a height of a floor cleaner based on height information related to a space stored in a map storage and height information sensed by a sensor.
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公开(公告)号：US10948913B2
公开(公告)日：2021-03-16
申请号：US15892589
申请日：2018-02-09
Applicant: LG ELECTRONICS INC.
Inventor： Changhyeon Lee , Byungkon Sohn
Abstract: The present disclosure relates to a method of identifying an unexpected obstacle and a robot implementing the method. The method includes: by a sensing module of a robot, sensing a blind spot located in a traveling path of the robot; by a control unit of the robot, calculating a probability that a moving object appears in the sensed blind spot; and, by the control unit, controlling the speed or direction of a moving unit of the robot based on the calculated probability.
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Patent Agency Ranking
5.发明授权公开(公告)号：US11602850B2
公开(公告)日：2023-03-14
申请号：US16622183
申请日：2018-05-18
Applicant: LG ELECTRONICS INC.
Inventor： Changhyeon Lee , Byungkon Sohn , Kyuchun Choi
Abstract: A method for identifying a moving object in a three-dimensional space and a robot for implementing same is provided. The robot includes a sensing module for calculating height and position information of an object by using two or more sensing units; a movement unit for moving the robot; a map storage unit for storing a three-dimensional map including the height and position information of the object, calculated by the sensing module, in a space in which the robot is moving; and a control unit for controlling the sensing module, the movement unit, and the map storage unit, converting the height and position information of the object calculated by the sensing module into global coordinates, storing, in the three-dimensional map, the height and position information of the object converted into the global coordinates, and removing, from the three-dimensional map, a moving object among objects stored in the map storage unit.
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6.发明授权公开(公告)号：US11498228B2
公开(公告)日：2022-11-15
申请号：US16622202
申请日：2018-05-29
Applicant: LG ELECTRONICS INC.
Inventor： Changhyeon Lee , Dong Seong Kim , Byungkon Sohn , Seung In Shin , Jungmin Shim , Jae Hoon Jeong
Abstract: The present disclosure relates to a method for sensing the depth of an object by considering external light and a device implementing the same, and a method for sensing the depth of an object by considering external light according to an embodiment of the present disclosure comprises the steps of: storing, in a storage unit, first depth information of an object, which is sensed at a first time point by a depth camera unit of a depth sensing module; storing, in the storage unit, second depth information of the object, which is sensed at a second time point by the depth camera unit; comparing, by a sensing data filtering unit of the depth sensing module, the generated first and second depth information to identify a filtering target region from the second depth information; and adjusting, by a control unit of the depth sensing module, the depth value of the region filtered from the second depth information.
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公开(公告)号：US11493933B2
公开(公告)日：2022-11-08
申请号：US16625148
申请日：2018-05-31
Applicant: LG ELECTRONICS INC.
Inventor： Changhyeon Lee , Byungkon Sohn , Kyung Man Yu
Abstract: The present disclosure relates to a method for driving on the basis of characteristics of a driving surface, and a robot for implementing the same, and a method for driving on the basis of characteristics of a driving surface, according to one embodiment of the present disclosure, comprises the steps in which: a sensing module of the robot senses an adjacent driving surface to generate characteristic information of the driving surface, and a control unit of the robot stores position and characteristic information of the driving surface in a map storage of the robot; the controller of the robot sets a function to be applied to the driving surface in response to the characteristic information of the driving surface, or generates a movement path selectively including the driving surface corresponding to start and end points of the robot; and the controller controls a moving unit and a functional unit of the robot according to the set function or the movement path.
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公开(公告)号：US11096325B2
公开(公告)日：2021-08-24
申请号：US15856404
申请日：2017-12-28
Applicant: LG ELECTRONICS INC.
Inventor： Hyunsup Song , Changhyeon Lee
Abstract: A lawn mower robot includes an inner body provided with casters and wheels for moving, a plurality of blades rotatably provided on a bottom surface of the inner body to cut grass, a drive motor mounted on the wheels, respectively, to independently drive the wheels, and an outer cover mounted on and configured to surround an outer side of the inner body to be movable in forward, backward, leftward and rightward directions with respect to the inner body when colliding with an obstacle. A plurality of ultrasonic sensors are provided to sense an obstacle, and an ultrasonic guide unit is formed to be recessed rearward from a front end portion of the outer cover so as to restrict a downward propagation angle of ultrasonic waves generated from the ultrasonic sensors.
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公开(公告)号：US20180239355A1
公开(公告)日：2018-08-23
申请号：US15892589
申请日：2018-02-09
Applicant: LG ELECTRONICS INC.
Inventor： Changhyeon Lee , Byungkon Sohn
CPC classification number: G05D1/0088 , G01C3/08 , G01C21/005 , G01S17/936 , G05D1/0212 , G05D1/0231 , G05D1/0274 , G06K9/00362 , G06K9/00369 , G06K9/00664 , G06K9/00805 , G08G1/161 , G08G1/166
Abstract: The present disclosure relates to a method of identifying an unexpected obstacle and a robot implementing the method. The method includes: by a sensing module of a robot, sensing a blind spot located in a traveling path of the robot; by a control unit of the robot, calculating a probability that a moving object appears in the sensed blind spot; and, by the control unit, controlling the speed or direction of a moving unit of the robot based on the calculated probability.
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