Title:
LAWN MOWER ROBOT AND METHOD FOR CONTROLLING THE SAME
Document Type and Number:
WIPO Patent Application WO/2021/006436
Kind Code:
A1
Abstract:
A lawn mower robot and a method for controlling the same are disclosed. A lawn mower robot according to an embodiment includes a plurality of distance sensor units. Each distance sensor unit detects distance information between the lawn mower robot and a fence for partitioning a region. A controller calculates adjacent direction information using each detected distance information. In addition, the lawn mower robot includes a position sensor module. The position sensor module detects position information related to the lawn mower robot. The controller detects whether the lawn mower has been deviated from a preset region by using the position information. When the lawn mower robot has been deviated, the lawn mower robot can be moved in a direction according to the calculated adjacent direction information. Accordingly, the lawn mower robot can return along the shortest path.
Inventors:
YU KYUNGMAN (KR)
SONG HYUNSUP (KR)
JOO HYUNGKOOK (KR)
SONG HYUNSUP (KR)
JOO HYUNGKOOK (KR)
Application Number:
PCT/KR2019/016709
Publication Date:
January 14, 2021
Filing Date:
November 29, 2019
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
International Classes:
A01D34/00; B25J5/00; B25J9/16; B25J11/00; B25J13/08; G05B19/19
Foreign References:
| US20140324269A1 | 2014-10-30 | |||
| US20170322559A1 | 2017-11-09 | |||
| US20140012418A1 | 2014-01-09 | |||
| US20180299894A1 | 2018-10-18 | |||
| JP2018099041A | 2018-06-28 |
Other References:
See also references of EP 3993601A4
Attorney, Agent or Firm:
PARK, Jang-Won (KR)
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