Water outlet control method for automatic water dispenser

Abstract

The invention relates to the technical field of machine vision, and discloses a water outlet control method for an automatic water dispenser. The water outlet control method comprises the following steps: 1, putting a transparent cup body below a water outlet of the automatic water dispenser, shooting the transparent cup body by using a camera, and selecting a plurality of frames of images from ashot video at equal time intervals; 2, selecting an ROI (Region of Interest) by taking a cup mouth central point of the transparent cup body as an image central point; 3, performing edge detection onthe ROI to obtain the inner edge of the cup mouth and the upper edge of the liquid level; 4, establishing a rectangular coordinate system by taking the corner point of the ROI as an original point, calculating the number of pixel points between the upper edge of the inner edge of the cup mouth and the upper edge of the liquid level, and comparing the number of the pixel points with a second numberthreshold value; and 5, if the number of the pixel points is smaller than a second number threshold value, for the water outlet of the automatic water dispenser, stopping discharging water otherwise,repeating the step 2 to the step 4, and processing the selected next frame of image.

Description

technical field [0001] The invention relates to the technical field of machine vision, in particular to a water outlet control method for an automatic water dispenser. Background technique [0002] At this stage, whether in schools, factories, hospitals or families, most of the occasions of using traditional drinking fountains. But with people's yearning and pursuit of a better life, traditional water dispensers can no longer meet people's requirements. At present, there are obvious defects in the intelligence and safety of ordinary water dispensers on the market during use. At present, the annual increment of water dispensers in my country is more than 300,000, and each ordinary water dispenser consumes a lot of electricity. Then the whole country will lose a lot of electric energy in this respect every year. In terms of safety performance, traditional water dispensers need to manually operate the water outlet valve to discharge water. Once the water is inadvertent, the ...

AI Technical Summary

Problems solved by technology

[0003] The invention provides a water outlet control method for an automatic water dispenser, which solves the problems that the existing automatic water dispenser cannot automatically control the water outlet valve, easily overflows, and causes harm to users.

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