Corn kernel crush rate online detection method and device based on machine vision

Abstract

The invention relates to a corn kernel crush rate online detection method and device based on machine vision. The method comprises the following steps: obtaining corn kernels distributed in a single layer by a box body structure; collecting corn kernels images by an industrial CCD camera and carrying out sharpening, de-noising and edge detection to obtain the corn kernel edge contour feature; separating the crushed corn kernels and intact corn kernels by employing threshold segmentation and binarization processing; analyzing the images by a fuzzy clustering method to extract the crushed corn kernel characteristics; and matching the template with a standard crushed corn kernel template to obtain the quantity of the crushed corn kernels and calculating the crush rate, and displaying the crush rate on a vehicle-mounted terminal. The device comprises a detection box body unit, an image acquisition unit, an image processing unit, a data transmission unit, and a vehicle-mounted control and display unit. The units are matched one another to detect the corn kernel crush rate online in real time. The device is convenient to mount and maintain and is easily mounted in a locomotive grain tank, and meanwhile has the advantages of being high in detection speed, high in stability and relatively high in precision.

Description

technical field [0001] The invention relates to the technical field of detection, in particular to a machine vision-based online detection method and device for the breakage rate of corn kernels. Background technique [0002] In order to improve the harvesting quality of corn combine harvesters in my country, reduce the breakage of corn kernels caused by mechanical threshing and other factors, improve the online monitoring ability of corn kernel breakage rate, and monitor the combined harvesting machinery in a timely and dynamic manner to ensure that the breakage rate of corn kernels is lower than A certain threshold, so as to ensure the harvest quality of corn kernels. [0003] The lower breakage rate of corn kernels not only reduces the waste caused by too small kernels when the corn kernels are harvested, but also facilitates the storage of corn kernels and corn breeding in the later stage, because the broken corn kernels are easy to absorb water in the broken parts, Stor...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problem that the on-line detection of the broken rate of corn kernels is difficult, the object of the present invention is to propose a method and device for on-line detection of the broken rate of corn kernels based on machine vision, and the device has fast detection speed, strong stability and good flexibility. It has the characteristics of high precision, and at the same time, the present invention makes up for the deficiencies in the on-line detection device of corn grain breakage rate in my country, and has a positive effect on the development of intelligent detection technology of agricultural machinery in China, and has positive significance for accelerating the realization of intelligentization in the field of agricultural machinery in my country

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