公开(公告)号：US11485516B2

公开(公告)日：2022-11-01

申请号：US16488834

申请日：2019-06-18

Applicant: LG ELECTRONICS INC.

Inventor： Seokhee Yi ,  Nakyeong Kim ,  Kwangho An

IPC: B64C39/02 ,  B64D45/08 ,  B64D47/08 ,  B64F1/18 ,  G05D1/10 ,  G05D1/06

Abstract: Disclosed are a precise landing method using a multi-pattern in an unmanned aerial control system and an apparatus therefor. In an aspect of the present invention, a precise landing method using a multi-pattern of an unmanned aerial robot in an unmanned aerial control system includes receiving an image value from an outside and recognizing a multi-pattern in which control information for precise landing control has been coded based on the image value, obtaining control information when an ID value included in the control information indicates a landing point, moving to the landing point based on the control information, and performing landing at the landing point, and recognizing the multi-pattern again if the landing is not completed. A landing area for the landing of the unmanned aerial robot may include the landing point and the multi-pattern. The multi-pattern may include a first multi-pattern and a second multi-pattern. The first multi-pattern may have a greater size than the second multi-pattern.

公开(公告)号：US11492110B2

公开(公告)日：2022-11-08

申请号：US16499690

申请日：2019-07-23

Applicant: LG ELECTRONICS INC.

Inventor： Seokhee Yi ,  Nakyeong Kim ,  Jeongkyo Seo ,  Kwangho An ,  Beomseok Chae

IPC: B64C39/02 ,  H04W4/80 ,  B64D27/24 ,  B64D45/08 ,  B64D47/02 ,  B64D47/08 ,  G05D1/00 ,  H04W72/14

Abstract: A station recognition and a landing method are disclosed. More specifically, an unmanned aerial robot includes a camera sensor configured to capture a first pattern that is marked on a station cover and is used for a station identification and a second pattern that is marked inside a station and is used for a precision landing; a transceiver configured to transmit and receive a radio signal; and a processor functionally connected to the camera sensor and the transceiver, wherein the processor is configured to determine a landing station for landing based on the first pattern captured by the camera sensor, control the transceiver to transmit a radio signal that indicates the landing station to open the station cover, and perform the precision landing at the landing station based on the second pattern of the landing station.

公开(公告)号：US20210331798A1

公开(公告)日：2021-10-28

申请号：US16489285

申请日：2019-07-23

Applicant: LG ELECTRONICS INC.

Inventor： Seokhee Yi ,  Nakyeong Kim ,  Jeongkyo Seo ,  Kwangho An ,  Yuseung Jeong

IPC: B64C39/02 ,  G05D1/10

Abstract: This specification provides a station recognition and landing method.
More specifically, in this specification, a unmanned aerial robot can search at least one neighboring station using station IDs and select a station for landing from among the at least one searched station.
In addition, the unmanned aerial robot receives control information related to a landing position from the selected station, the control information includes information on movement from a current position of the unmanned aerial robot to the landing position, and the unmanned aerial robot moves to the landing position on the basis of the movement information and lands at the station upon arrival at the landing position.

公开(公告)号：US09610691B2

公开(公告)日：2017-04-04

申请号：US14881738

申请日：2015-10-13

Applicant: LG ELECTRONICS INC.

Inventor： Dongki Noh ,  Seungmin Baek ,  Kwangho An ,  Yeonsoo Kim

IPC: G06K9/00 ,  B25J9/16 ,  G05D1/02 ,  G06K9/48 ,  B25J11/00 ,  G06T7/00 ,  G06T7/40 ,  G06K9/20

CPC classification number: B25J9/1697 ,  B25J9/1676 ,  B25J11/0085 ,  G05D1/0246 ,  G05D2201/0215 ,  G06K9/00664 ,  G06K9/2036 ,  G06K9/48 ,  G06T7/11 ,  G06T7/74 ,  G06T7/90 ,  G06T2207/20021 ,  Y10S901/01

Abstract: A robot cleaner and a control method thereof according to the present disclosure select a seed pixel in an image of an area in front of a main body, obtain a brightness difference between an upper region and a lower region obtained by dividing a predetermined detection area including each of neighboring pixels of the seed pixel and select a pixel belonging to a detection area having a largest brightness difference as a pixel constituting the boundary between objects indicated in the image. Accordingly, the boundary between objects present within a cleaning area can be detected rapidly and correctly through an image.