An early detection method and device for worm-eaten grain granules

An early detection and food technology, applied in the direction of material defect testing, etc., can solve the problems of undetectable larvae, inaccurate detection results of carbon dioxide production methods, radiation damage to staff, etc., and achieve the effect of accurate detection results.
CN106950253AInactive Publication Date: 2017-07-14HENAN UNIVERSITY OF TECHNOLOGY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HENAN UNIVERSITY OF TECHNOLOGY
Publication Date
2017-07-14
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to an early detection method and device for worm-eaten grain granules. According to the method, images of single granules by subjecting heated grain granules to be detected to thermal imaging are extracted; characteristic parameters related to the grey value of the image of each granule are extracted, are made dimensionless and adopted as inputs of a built classification model; and whether each granule carries worm or not is determined according to outputs of the classification model. Only by collecting thermal images of the grain granules, early detection of larvae of different hidden type insects can be performed, detection results are accurate, and an imaging process does not destroy integrity of grains, does not need any chemical agent, and is free of generation of harmful compounds. In addition, worm-eaten grain granule detection and counting are automatically performed by a computer in the method, do not require manual participation and do not influence health of workers. The method is a green and nondestructive detection technique.
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Description

technical field

[0001] The invention belongs to the technical field of grain quality detection, and in particular relates to an early detection method and device for grain insect-eroded grains. Background technique

[0002] During grain storage, the harm of stored grain pests is very serious. According to the statistics of the Food and Agriculture Organization of the United Nations, about 5% of the grain in the world is lost due to post-harvest pest erosion every year. If it is due to manpower, material resources and technical limitations, it may reach 20-30%. As a big country in grain production, storage and consumption in the world, our country has a post-harvest loss rate of 8%-12%, and the annual loss of grain exceeds 50 billion catties. Therefore, real-time detection of grain pests has become an urgent problem. Corn weevils, rice weevils, wheat moths and grain beetles are the most serious pests that endanger the safety of my country's grain storage, all of which are ty...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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