US 11,880,205 B2
Auto clean machine and auto clean machine control method
Guo-Zhen Wang, Hsin-Chu (TW)
Assigned to PixArt Imaging Inc., Hsin-Chu (TW)
Filed by PixArt Imaging Inc., Hsin-Chu (TW)
Filed on Oct. 19, 2022, as Appl. No. 17/968,810.
Application 17/968,810 is a continuation of application No. 15/889,127, filed on Feb. 5, 2018, granted, now 11,507,097.
Prior Publication US 2023/0038723 A1, Feb. 9, 2023
Int. Cl. G05D 1/02 (2020.01); G05D 1/00 (2006.01); A47L 11/40 (2006.01); G01C 3/08 (2006.01); G01C 5/00 (2006.01)
CPC G05D 1/0214 (2013.01) [A47L 11/4011 (2013.01); A47L 11/4061 (2013.01); G05D 1/0088 (2013.01); G05D 1/0231 (2013.01); A47L 2201/04 (2013.01); G01C 3/08 (2013.01); G01C 5/00 (2013.01); G05D 2201/0203 (2013.01)] 12 Claims
OG exemplary drawing
 
1. An auto clean machine, comprising:
a light source configured to emit light to illuminate at least one light region;
a first image sensing area, configured to sense a first brightness distribution of the light region, wherein a resolution for a horizontal direction of the first image sensing area is higher than a resolution for a vertical direction of the first image sensing area;
a second image sensing area below the first image sensing area, configured to sense a second brightness distribution of the light region, wherein a resolution for a vertical direction of the second image sensing area is higher than a resolution for a horizontal direction of the second image sensing area; and
a processor, configured to control movement of the auto clean machine according the first brightness distribution and the second brightness distribution;
wherein the processor generates a wall detection result based on the first brightness distribution of the light region, generates a cliff detection result based on the second brightness distribution of the light region, and controls the movement of the auto clean machine according to the wall detection result and the cliff detection result.