US 12,075,967 B2
Mobile robot and control method of mobile robots
Myungho Yang, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 17/595,010
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed May 7, 2020, PCT No. PCT/KR2020/005987
§ 371(c)(1), (2) Date Nov. 5, 2021,
PCT Pub. No. WO2020/226426, PCT Pub. Date Nov. 12, 2020.
Claims priority of application No. 10-2019-0053073 (KR), filed on May 7, 2019.
Prior Publication US 2022/0211236 A1, Jul. 7, 2022
Int. Cl. A47L 9/28 (2006.01); A47L 9/00 (2006.01); G05D 1/00 (2024.01)
CPC A47L 9/2826 (2013.01) [A47L 9/009 (2013.01); A47L 9/281 (2013.01); A47L 9/2852 (2013.01); A47L 9/2894 (2013.01); G05D 1/0214 (2013.01); G05D 1/0274 (2013.01); G05D 1/0297 (2013.01); A47L 2201/04 (2013.01); A47L 2201/06 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A mobile robot, comprising:
a driving unit of moving a main body;
a cleaning unit of sucking a dust;
a dust sensor of measuring a dust concentration in air sucked by the cleaning unit;
a floor image sensor of obtaining a floor image of a periphery of the main body; and
a controller of determining a wet contaminated region based on information input from the dust sensor and the floor image sensor,
wherein the controller specifies at least one suspected wet contaminated region where the dust concentration is relatively low in a cleaning area, and specifies the suspected wet contaminated region as the wet contaminated region based on a floor image of the suspected wet contaminated region.