US 12,343,883 B2
External light influence solution system for mobile robot and method therefor
Myung Sik Kim, Suwon-si (KR); and Min Su Kim, Namyangju-si (KR)
Assigned to B-ROBOTICS CO., LTD., Seoul (KR)
Appl. No. 18/018,572
Filed by B-ROBOTICS CO., LTD., Seoul (KR)
PCT Filed Jul. 29, 2021, PCT No. PCT/KR2021/009867
§ 371(c)(1), (2) Date Jan. 29, 2023,
PCT Pub. No. WO2022/025658, PCT Pub. Date Feb. 3, 2022.
Claims priority of application No. 10-2020-0094813 (KR), filed on Jul. 29, 2020; and application No. 10-2021-0099620 (KR), filed on Jul. 29, 2021.
Prior Publication US 2023/0294290 A1, Sep. 21, 2023
Int. Cl. B25J 9/16 (2006.01); B25J 5/00 (2006.01); B25J 19/02 (2006.01)
CPC B25J 9/1694 (2013.01) [B25J 5/007 (2013.01); B25J 19/023 (2013.01)] 6 Claims
OG exemplary drawing
 
1. An external light influence solution system of a mobile robot, comprising:
the mobile robot; and
a control system configured to control an operation of the mobile robot, wherein
the control system comprises:
a light emitter configured to irradiate light for sensing;
a light receiver comprising at least one camera and configured to receive the light irradiated from the light emitter;
a filter unit disposed on a front side of the light receiver to be spaced apart from the light receiver by a predetermined distance to block external light of a specific wavelength toward the light receiver; and
a controller configured to measure a distance to an obstacle based on the light received by the light receiver,
the controller is configured to adjust a lens brightness of the camera for receiving the light, and
in response to receiving an external light corresponding to direct sunlight, the controller is configured to move the mobile robot to a place where the received direct sunlight falls below a predetermined level and then adjust the lens brightness.