Potato grading control method and device based on machine vision technology

Abstract

The invention discloses a potato grading control method and device based on machine vision technology. The method is characterized in that during image detection, a camera field-of-view is divided into virtual passages with the number corresponding to that of guiding lifting levers according to the number of the guiding lifting levers; a logic value is used for indicating whether to-be-graded potatoes exist on each virtual passage or not; a control and processing unit controls the guiding lifting levers to act according to the detected logic value, and when the logic value is equal to 1, a guiding mechanism corresponding to the guiding lifting levers is upward pushed out by an air cylinder, and potatoes are in contact with the guiding lifting levers, so that the running track of the potatoes is changed, and the potatoes are separated to be thrown into corresponding discharging chutes; and after a camera is used for acquiring images of the potatoes, a virtual circle is drawn by taking the transverse diameters of the potatoes as the diameter according to the image detection result, and whether one or more guide lifting levers are adopted for separating the potatoes is determined according to the areas, occupied by the virtual circle, of the virtual passages. The fast detection of potatoes with various and different quality can be realized, damage to the potatoes can be reduced, and the sorting of the potatoes can be precisely realized.

Description

technical field [0001] The invention relates to a potato grading control method and device, in particular to a potato grading control method and device based on machine vision technology. Background technique [0002] Potatoes are rich in carbohydrates, protein, minerals (phosphorus, calcium, etc.), vitamins and other nutrients, and are known as "underground apples". [0003] At present, my country's potato production and harvested area rank first in the world, but the conversion rate of potato processing is only about 15%, and its development level is obviously lagging behind that of developed countries. Although my country is a big potato producing country, it is not a powerful country in the potato industry. Potato deep processing has high requirements on potato quality. How to obtain high-commodity potatoes has become an important factor restricting the further development of my country's potato industry. [0004] Traditional potato sorting methods include manual sortin...

AI Technical Summary

Problems solved by technology

The patent adopts the method of hitting fruits and vegetables head-on, and the sorted fruits and vegetables fall directly into the material bin, which is easy to cause damage to the fruits and vegetables; a single removal method cannot effectively remove various impurities

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