公开(公告)号：US20210012111A1

公开(公告)日：2021-01-14

申请号：US16925798

申请日：2020-07-10

Applicant: LG ELECTRONICS INC.

Inventor： Jieun CHOI ,  Miyoung SIM

IPC: G06K9/00 ,  G05D1/02 ,  G01S17/89

Abstract: A moving robot including: a lidar sensor to acquire terrain information; a memory to store node data nodes; and a controller to determine whether at least one open movement direction exists based on sensing data of the lidar sensor and the node data, to generate a new node in the node data and add the generated node to a node group, to determine any of the open movement directions as a movement direction, to control the robot to travels an area corresponding to the node group, to control a suction unit to suck foreign matter around the main body when traveling in the node group, to initialize the node group, to determine whether at least one node is to be updated, moving the robot to any one of the nodes to be updated, and to complete generation of a map.

公开(公告)号：US20210007572A1

公开(公告)日：2021-01-14

申请号：US16924848

申请日：2020-07-09

Applicant: LG ELECTRONICS INC.

Inventor： Miyoung SIM

IPC: A47L11/40 ,  G05D1/02

Abstract: A mobile robot of the present disclosure includes: a traveling unit configured to move a main body; a cleaning unit configured to perform a cleaning function; a sensing unit configured to sense a surrounding environment; an image acquiring unit configured to acquire an image outside the main body; and a controller configured to generate a distance map indicating distance information from an obstacle for a cleaning area based on information detected and the image through the sensing unit and the image acquiring unit, divide the cleaning area into a plurality of detailed areas according to the distance information of the distance map and control to perform cleaning independently for each of the detailed areas. Therefore, the area division is optimized for the mobile robot traveling in a straight line by dividing the area in a map showing a cleaning area.

公开(公告)号：US20240377835A1

公开(公告)日：2024-11-14

申请号：US18580049

申请日：2022-07-12

Applicant: LG ELECTRONICS INC.

Inventor： Sangyol YOON ,  Miyoung SIM ,  Jongbeom JEON

IPC: G05D1/242 ,  G05D1/246 ,  G05D105/10 ,  G05D111/10

Abstract: In order to achieve the purpose, a robotic cleaner according to an aspect of the present disclosure includes: a traveling unit for moving a body in a traveling region; a distance measuring sensor for acquiring distance sensing information about a distance to an object outside the body; and a control unit which generates a grid map about the traveling region from the distance sensing information, performs, when dividing the traveling region into a plurality of sub-areas, ray casting on a plurality of traveling nodes on a path of the grid map with respect to each sub-area to search for an open space, and sets an open node for the open space to calculate a topology graph between the traveling nodes and the open node. Therefore, efficiency can be improved by minimizing unnecessary traveling when traveling for searching for a space in which additional traveling is required. Furthermore, avoidance traveling can be reduced by setting the cleaner to travel along the center of a passage during additional search traveling.