Method for determining dosage of detergent, dishwasher, processor, and storage medium

Patent metadata

Field	Value
Publication number	US-2023414061-A1
Application number	US-202218252887-A
Country	US
Kind code	A1
Filing date	Jan 11, 2022
Priority date	Jan 11, 2021
Publication date	Dec 28, 2023
Grant date	—

Abstract

A method for determining the usage amount of detergent, and a dishwasher, a processor, a storage medium and a computer program product. The method for determining the usage amount of detergent includes acquiring an internal image of a dishwasher captured by an image acquisition device; according to the internal image, determining whether there is a target object in the dishwasher; when it is determined that there is a target object, generating a position table of the target object; determining the dirtiness of the target object according to the position table; and determining the usage amount of detergent for the dishwasher according to the dirtiness. The dirtiness of a target object needing to be cleaned in a dishwasher is determined by means of an image acquisition device, and the usage amount of detergent for the dishwasher is then determined according to the dirtiness.

First claim

1 . A method for determining a dosage of detergent, applied to a dishwasher, wherein the dishwasher comprises an image acquisition device, and the method comprises:
obtaining an internal image of the dishwasher, acquired by the image acquisition device; determining whether a target object exists in the dishwasher according to the internal image; generating a position grid of the target object in accordance with a determination that the target object exists; acquiring a degree of fouling of the target object according to the position grid; and determining the dosage of detergent of the dishwasher according to the degree of fouling.

2 . The method of claim 1 , wherein acquiring the degree of fouling of the target object according to the position grid comprises:
determining a first position of the target object in the position grid; determining a neighboring object adjacent to the target object in the position grid according to the first position; acquiring a first degree of fouling of the target object and a second degree of fouling of the neighboring object; and determining a sum of a preset proportion of the second degree of fouling and the first degree of fouling as the degree of fouling of the target object.

3 . The method of claim 2 , wherein acquiring the first degree of fouling of the target object and the second degree of fouling of the neighboring object comprises:
determining a first area of the target object and a second area of the neighboring object according to the internal image; acquiring the first degree of fouling according to the first area; and acquiring the second degree of fouling according to the second area.

4 . The method of claim 2 , wherein the neighboring object comprises at least one of objects adjacent to the target object in an upper, lower, left, and right directions in the position grid.

5 . The method of claim 1 , wherein determining the dosage of detergent of the dishwasher according to the degree of fouling comprises:
determining a product of a preset constant coefficient and a square of the degree of fouling as the dosage of detergent of the dishwasher.

6 . The method of claim 1 , wherein determining whether the target object exists in the dishwasher according to the internal image comprises:
determining the degree of fouling as a preset value in accordance with a determination that the target object does not exist.

7 . The method of claim 1 , further comprising:
resetting the dosage of detergent in response to a determination that the dishwasher has a door which is opened and then closed.

8 . A processor, configured to implement a method for determining a dosage of detergent of applied to a dishwasher, wherein the dishwasher comprises an image acquisition device, and the method comprises:
obtaining an internal image of the dishwasher, acquired by the image acquisition device; determining whether a target object exists in the dishwasher according to the internal image; generating a position grid of the target object in accordance with a determination that the target object exists; acquiring a degree of fouling of the target object according to the position grid; and determining the dosage of detergent of the dishwasher according to the degree of fouling.

9 . A dishwasher, comprising:
an image acquisition device, configured to obtain an internal image of the dishwasher; and the processor of claim 8 .

10 . A non-transitory machine-readable storage medium, having an instruction stored thereon, wherein when the instruction is executed by a processor, the processor is configured to implement a method for determining a dosage of detergent of applied to a dishwasher, wherein the dishwasher comprises an image acquisition device, and the method comprises:
obtaining an internal image of the dishwasher, acquired by the image acquisition device; determining whether a target object exists in the dishwasher according to the internal image; generating a position grid of the target object in accordance with a determination that the target object exists; acquiring a degree of fouling of the target object according to the position grid; and determining the dosage of detergent of the dishwasher according to the degree of fouling.

11 . The processor of claim 8 , wherein acquiring the degree of fouling of the target object according to the position grid comprises:
determining a first position of the target object in the position grid; determining a neighboring object adjacent to the target object in the position grid according to the first position; acquiring a first degree of fouling of the target object and a second degree of fouling of the neighboring object; and determining a sum of a preset proportion of the second degree of fouling and the first degree of fouling as the degree of fouling of the target object.

12 . The processor of claim 11 , wherein acquiring the first degree of fouling of the target object and the second degree of fouling of the neighboring object comprises:
determining a first area of the target object and a second area of the neighboring object according to the internal image; acquiring the first degree of fouling according to the first area; and acquiring the second degree of fouling according to the second area.

13 . The processor of claim 11 , wherein the neighboring object comprises at least one of objects adjacent to the target object in an upper, lower, left, and right directions in the position grid.

14 . The processor of claim 8 , wherein determining the dosage of detergent of the dishwasher according to the degree of fouling comprises:
determining a product of a preset constant coefficient and a square of the degree of fouling as the dosage of detergent of the dishwasher.

15 . The processor of claim 8 , wherein determining whether the target object exists in the dishwasher according to the internal image comprises:
determining the degree of fouling as a preset value in accordance with a determination that the target object does not exist.

16 . The processor of claim 8 , further configured to implement the method for determining a dosage of detergent of applied to a dishwasher, which further comprises:
resetting the dosage of detergent in response to a determination that the dishwasher has a door which is opened and then closed.

17 . The non-transitory machine-readable storage medium of claim 10 , wherein acquiring the degree of fouling of the target object according to the position grid comprises:
determining a first position of the target object in the position grid; determining a neighboring object adjacent to the target object in the position grid according to the first position; acquiring a first degree of fouling of the target object and a second degree of fouling of the neighboring object; and determining a sum of a preset proportion of the second degree of fouling and the first degree of fouling as the degree of fouling of the target object.

18 . The non-transitory machine-readable storage medium of claim 17 , wherein acquiring the first degree of fouling of the target object and the second degree of fouling of the neighboring object comprises:
determining a first area of the target object and a second area of the neighboring object according to the internal image; acquiring the first degree of fouling according to the first area; and acquiring the second degree of fouling according to the second area.

19 . The non-transitory machine-readable storage medium of claim 17 , wherein the neig

Assignees

• Foshan Shunde Midea Washing Appliances Mfg Co Ltd

Inventors

• Wang Caixia
• Zhang Feibao
• Fan Zhiheng
• Quan Yongbing

Classifications

• A47L15/4295 Primary

  Arrangements for detecting or measuring the condition of the crockery or tableware, e.g. nature or quantity · CPC title

• A47L15/0055 Primary

  Metering or indication of used products, e.g. type or quantity of detergent, rinse aid or salt; for measuring or controlling the product concentration · CPC title

• G06V20/50

  Context or environment of the image · CPC title

• G06T7/70

  Determining position or orientation of objects or cameras (camera calibration G06T7/80) · CPC title

• G06T7/0002

  Inspection of images, e.g. flaw detection · CPC title