US 12,232,680 B2
Clean dish verification using a camera assembly in a dishwasher appliance
Tal Abraham Ohayon, Hollywood, FL (US); and Kyle Edward Durham, Louisville, KY (US)
Assigned to Haier US Appliance Solutions, Inc., Wilmington, DE (US)
Filed by Haier US Appliance Solutions, Inc., Wilmington, DE (US)
Filed on Aug. 24, 2022, as Appl. No. 17/894,454.
Prior Publication US 2024/0065520 A1, Feb. 29, 2024
Int. Cl. A47L 15/42 (2006.01)
CPC A47L 15/4295 (2013.01) [A47L 2401/04 (2013.01); A47L 2501/26 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A dishwasher appliance, comprising:
a tub defining a wash chamber for receipt of a load of articles for washing, the tub having a front opening;
a door positioned adjacent to the tub at the front opening and configured for selectively moving between closed and open positions;
one or more rack assemblies positioned within the wash chamber and configured for receipt of the load of articles;
a fluid delivery device configured for delivering wash fluid into the wash chamber for cleaning the load of articles;
a camera assembly mounted at the wash chamber with a view of the load of articles within the wash chamber; and
a controller operably coupled with the camera assembly, the controller configured to:
determine that a cleaning cycle has been completed;
obtain a first image using the camera assembly;
determine that the door has been opened;
obtain a second image using the camera assembly;
determine that a predetermined number of articles from the load of articles has been removed from the wash chamber based at least in part on the first image and the second image; and
provide a user notification that the load of articles is dirty in response to determining that the predetermined number of articles has been removed from the wash chamber based at least in part on the first image and the second image.