Range hood image acquisition method and range hood

A range hood and color temperature technology, applied in the direction of oil fume removal, heating methods, lighting and heating equipment, etc., can solve the problems of reducing the light transmittance of the lens, inaccurate detection results, failure, etc., to avoid dirt and fogging, and ensure Accuracy and consistency, the effect of isolating the rising path of oil fume

Active Publication Date: 2020-09-15
JOYOUNG CO LTD
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Problems solved by technology

[0003] The main disadvantage of the image sensor is that it is easy to cause inaccurate or invalid detection results due to the contamination of oily fumes. The oil film is attached to the lens, which reduces the light transmittance of the lens
Moreover, the image acquisition effect of the image sensor has a great relationship with the brightness and color temperature of the ambient light, and the color temperature of the light in the kitchen environment of different users has a large difference, so it is difficult to meet the detection universality of the range hood

Method used

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  • Range hood image acquisition method and range hood
  • Range hood image acquisition method and range hood
  • Range hood image acquisition method and range hood

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Embodiment 1

[0115] This embodiment illustrates the working process of determining the range hood:

[0116] When the range hood control unit enters the image recognition function program, the hood turns on the lighting. At this time, the lighting runs at a color temperature of 4000K and a brightness of 200. The RGB sensor detects the brightness Lm1 of the current ambient light source. If Lm1≥800, the brightness of the current ambient light source is determined. Meet the requirements, because the brightness is too high can be adjusted by reducing the aperture and sensitivity of the camera, and the image quality will not be affected, so the ambient light brightness is allowed to be greater than 800; if the ambient light brightness is dark, the camera can only The image can be brightened by increasing the sensitivity. Increasing the ISO will increase the noise and degrade the image quality, which may affect the image recognition result.

[0117] If Lm1 < 800, it is determined that the brightn...

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Abstract

The invention provides a range hood image acquisition method and a range hood, and relates to the field of intelligent equipment detection. The method comprises the steps that ambient light detectionis carried out in a cooking environment, and corresponding color channel data is obtained; a brightness change condition and a color temperature change condition in a cooking process are determined according to the color channel data; and a brightness value and a color temperature value in the cooking process are adjusted according to the brightness change condition and the color temperature change condition, so that the brightness value and the color temperature value meet a set standard brightness requirement and a set standard color temperature requirement. The ambient light stability of the range hood in an operating state is ensured, and the accuracy and the consistency of image recognition are ensured.

Description

technical field [0001] The invention relates to the field of intelligent equipment detection, in particular to an image acquisition method of a range hood and the range hood. Background technique [0002] At present, the method of detecting the concentration of oil fume in the hood industry mainly uses sensors such as gas, dust, and optics, which have problems such as poor real-time detection, pollution of oil fume to the sensor, and difficulty in maintenance. The latest technology uses image recognition to detect lampblack, which can solve the above problems well. [0003] The main disadvantage of the image sensor is that it is easy to cause inaccurate or invalid detection results due to the contamination of oily fumes. The oil film is attached to the lens, which reduces the light transmittance of the lens. Moreover, the image acquisition effect of the image sensor is closely related to the brightness and color temperature of the ambient light, and the color temperature o...

Claims

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Application Information

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IPC IPC(8): F24C15/20H05B45/12H05B45/22
CPCF24C15/2021H05B45/12H05B45/22Y02B20/40
Inventor 朱泽春陈震孙金彪
Owner JOYOUNG CO LTD
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