Lg Electronics Inc.

Changhyeon Lee

Byungkon Sohn

Kyuchun Choi

Hyunsup Song

Jae Hoon Jeong

Woo Hong

Dong Seong Kim

Youngkouk Song

Jungmin Shim

Kahyung Choi

Kihong Park

Han Shin Kim

Seung In Shin

Kyung Man Yu

Provided according to one embodiment of the present invention is a method for controlling a robot cleaner, comprising: a map data collection step of collecting first information collected by photographing a cleaning target area by means of a depth camera and second information collected by photographing the cleaning target area by means of an IR sensor; a depth data filtering step of removing, from the first information, information which is determined to be noise when detecting obstacles; and a data restoration step of, if there is a lost part of the information on the obstacles by comparing the second information with the information that is determined to be noise and removed in the depth data filtering step, restoring the lost part. According to the present embodiment, it is possible to obtain effective obstacle information by removing noise that is not removed despite filtering of the depth camera, so as to detect even thin obstacles.

Robot cleaner and control method thereof

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.

Method for identifying moving object in three-dimensional space and robot for implementing same

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.

Method for sensing depth of object by considering external light and device implementing same

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.

Method for traveling on basis of characteristics of traveling surface, and robot for implementing same

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.

Method of adaptively operating based on height difference between floors and cleaning robot

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.

Method for identifying obstacle on driving ground and robot for implementing same

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.

Lawn mower robot

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.

Method of identifying unexpected obstacle and robot implementing the method

The present disclosure relates to a method of identifying a functional region in a 3-dimensional space and a robot implementing the method, and the robot comprises a sensing module that senses a protrusion located outside a robot and provides height and depth information of the sensed protrusion; a functional unit that provides a predetermined function to the outside; a moving unit that moves the robot; a map storage unit that stores a map required for movement of the robot; and a control unit that controls these components.

Growing community of inventors

Seoul, South Korea

Changhyeon Lee