Evaporator frost detection method and frost detection system
An evaporator and frosting technology, applied in instruments, image analysis, image enhancement, etc., can solve the problems of wasting heating energy, low defrosting efficiency, shortening compressor cooling time, etc., achieve accurate detection, reduce errors, improve The effect of accuracy
Active Publication Date: 2018-09-04
HAIER SMART HOME CO LTD
View PDF3 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, this method of setting the defrosting start point based on experience has a very low defrosting efficiency because the frosting situation cannot be clearly determined.
In some cases, when the cooling preset is reached, the frosting thickness of the evaporator is not high, but the heating wire starts to work for defrosting, which not only shortens the cooling time of the compressor but also wastes heating energy; When the frost layer of the evaporator is already very thick and needs to be defrosted, but the program does not allow defrosting because the preset time has not been reached, which will affect the normal operation of the evaporator
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0036]This embodiment first provides a frosting detection system 100 for an evaporator of an air-cooled refrigerator, figure 1 is a schematic block diagram of a frost detection system 100 according to an embodiment of the present invention. The frost detection system 100 includes multiple sets of photographing devices 110 and image processing devices 120 .
[0037] figure 2 is a schematic diagram of the photographing device 110 of the frost detection system 100 according to another embodiment of the present invention. Each group of photographing devices 110 includes a camera 111 and an LED light 112, and the photographing devices 110 are arranged around the evaporator, and each group of photographing devices 110 photographs the evaporator from a fixed photographing angle. Therefore, the cameras 111 of the multiple groups of photographing devices 110 can respectively photograph the evaporator from multiple angles, and obtain multiple images of the evaporator from multiple an...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention provides a frosting detection method and a frosting detection system for an evaporator. The frosting detection method for the evaporator comprises the steps of shooting the evaporator from multiple angles by utilizing a plurality of shooting apparatuses to obtain multiple images of the evaporator; processing the images to obtain multiple pieces of feature data reflecting a frosting condition of the evaporator; and according to the feature data, determining the frosting condition of the evaporator as a judgment basis for a starting point and an ending point of defrosting of the evaporator. By utilizing the scheme provided by the invention, the feature data capable of reflecting the frosting condition is extracted from the frosting images according to a preset image processing algorithm, and the actual frosting condition is accurately and comprehensively reflected through the multi-dimensional feature data, so that the frosting condition detection can be more accurate and more proper starting point and ending point can be set for the subsequent defrosting process conveniently.
Description
technical field [0001] The invention relates to the field of defrosting, in particular to a frosting detection method and a frosting detection system of an evaporator. Background technique [0002] After an air-cooled refrigerator or an air conditioner running in heating mode runs for a period of time, the evaporator will frost, which affects its operating efficiency. Therefore, the refrigerator or air conditioner needs to defrost the evaporator after a period of cooling. [0003] However, the current defrosting method used in refrigerators or air conditioners is to set a preset time based on empirical data, and automatically start defrosting after the refrigerator or air conditioner has been refrigerated for a preset time. However, this method of setting the defrosting start point based on experience has low defrosting efficiency because the frosting situation cannot be determined. In some cases, when the cooling preset is reached, the frosting thickness of the evaporator ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/62
CPCG06T7/60G06T2207/10004G06T2207/20216
Inventor 王莅尘吴敏刘庆林
Owner HAIER SMART HOME CO LTD