Acoustic detection device for cracked rice seeds

Abstract

The present invention relates to an acoustic detecting apparatus for glume-open rice seed. The detecting apparatus provided by the present invention consists of the following systems: 1) a single seed falling system, wherein rice seeds fall from a vibration feeding apparatus to a seed-receiving funnel; 2) a seed falling collision sound acquisition system, wherein the seeds fall from a funnel pipe of the funnel to impact on a collision plate, and an acoustic sensor under the plate acquires collision sound of the seeds and processes sound signals by using a computer in real time; 3) a glume-open seed sorting system for sorting glume-open seeds and non-glume-open seeds according to the seed glume-open sound signal characteristics in a falling process of the seeds along the collision slope; 4) a seed falling collision height adjustment system for adjusting an upper collision plate of an acoustic insulated system to move up and down through a screw mechanism and a guide slide; 5) an acoustic sensor and collision plate spacing adjustment system for arranging a cushion block in a headspace of a support platform to adjust an intermediate tube of the acoustic insulated system to move up and down; and 6) a connection bracket. The apparatus is used for detecting and sorting the glume-open rice seeds in production and experiments.

Description

technical field [0001] The invention relates to a device for detecting glume defects of rice seeds by utilizing the acoustic characteristics of rice seeds. Background technique [0002] Cracked glume rice seeds refer to the cracks with different openings in the glume during the maturation process of rice seeds, resulting in direct contact between the internal brown rice and the outside air, accelerating seed aging under the influence of external high temperature, humidity and bacteria, and even losing seed vigor. [0003] Rice is the largest food crop in China. The sown area accounts for 1 / 4 of the country's food crops, while the output accounts for more than half. It has been cultivated for 6,000-7,000 years and is an important food crop. The germination rate of seeds is a concrete manifestation of seed vitality and a key indicator of seed quality. During the maturation process of rice seeds, rice husk cracks will inevitably occur, and internal brown rice grains will have ...

AI Technical Summary

Problems solved by technology

The water separation method can only be used for the rice seeds that are about to be sown, and the image processing method must ensure that the side of the split glume is facing the camera equipment. Therefore, these two methods currently have great defects, and it is difficult to apply them to the actual production of rice seeds. Grave Detection and Sorting

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