Control method and system for adjusting blowing of injection valve in real time based on bad points and sizes

Abstract

The invention relates to the field of color sorters, and discloses a control method for adjusting blowing of an injection valve in real time based on bad points and sizes. The control method comprisesthe following steps that to-be-sorted material is added into a color sorter and an image of the material is collected, foreground and background separation are carried out on the image to obtain a saliency map of the material; whether bad points exist or not in the saliency map is judged; whether the material in the saliency map is heterochrome material or not is judged; and the size of the material is measured and the material is blown so as to drop the material from a waste outlet. The invention further discloses a control system for adjusting blowing length of the injection valve in real time based on bad points and sizes. An image acquisition module, a saliency processing module, a bad point judgment module, a heterochrome judgment module, a waste removal module, a storage module andan input module are connected with an controller, the air blowing time of the removing device can be controlled according to the size of the material, the material can be prevented from being blown too far or too close, the material can fall into the waste outlet, and a certain energy source can be saved.

Description

technical field [0001] The present invention relates to the field of color sorters, and more specifically, to a control method and system for real-time adjustment of air blowing of injection valves based on dead spots and sizes. Background technique [0002] The color sorter is a device that uses photoelectric detection technology to automatically sort out the different-color particles in the granular material according to the difference in the optical characteristics of the material. At present, the color sorter is used in the fields of bulk materials or packaging industrial products, food quality testing and grading. The rejecting device in the existing color sorter can remove the materials with bad spots and the materials with different colors. The blowing time is mostly fixed, for some larger materials, too short blowing time may cause the material to fail to fall into the waste outlet, and for some smaller materials, too long blowing time may cause the material to blow...

AI Technical Summary

Problems solved by technology

The rejecting device in the existing color sorter can remove the materials with bad spots and the materials with different colors. The blowing time is mostly fixed, for some larger materials, too short blowing time may cause the material to fail to fall into the waste outlet, and for some smaller materials, too long blowing time may cause the material to blow too far

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