Detection method for mildewed corn seeds
A seed and corn technology, applied in the field of moldy corn seed detection, can solve the problems of high light requirements, high environmental odor requirements, and inability to perform single-seed detection, achieving good stability and high recognition rate.
Inactive Publication Date: 2016-04-13
CHINA AGRI UNIV
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However, among the above non-destructive testing methods, the optical method has higher requirements on the light of the experimental environment and needs to be tested in a sealed cover; the electronic nose has higher requirements on environmental odors and needs to be tested in a closed odorless container, and it is almost impossible to conduct a single test. particle detection
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[0034] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0035] figure 1 For the schematic flow sheet of the moldy corn seed detection method proposed by an embodiment of the invention, refer to figure 1 , the moldy corn seed detection method, comprising:
[0036] 101. Using air-coupled ultrasonic equipment to collect ultrasonic echo signals of corn seeds;
[0037] It should be noted that the pr...
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The invention discloses a detection method for mildewed corn seeds. The detection method for the mildewed corn seeds comprises the following steps: acquiring ultrasonic echo signals of corn seeds by adopting air coupling ultrasonic equipment; carrying out characteristic extraction on the ultrasonic echo signals to obtain a marginal spectrum of the ultrasonic echo signals, and obtaining classified characteristics according to the marginal spectrum; establishing a detection model according to the classified characteristics; and detecting corn seeds to be detected according to the detection model. According to the detection method disclosed by the invention, the corn seeds are detected by adopting an air coupling ultrasonic detection technology, and the corn seeds are detected through the detection model established based on detection results; and the detection method has the advantages of high identification rate and good stability.
Description
technical field [0001] The invention relates to the technical field of seed clarity detection, in particular to a method for detecting moldy corn seeds. Background technique [0002] Corn is one of the three major grains, and corn is an important source of grain and feed in my country. The endosperm in the corn kernel is relatively large and rich in nutrients, so it is easily contaminated by microorganisms, and it is a grain variety that is difficult to store. Especially in the rainy weather during the harvest season, mildew is prone to occur. The post-harvest loss caused by mildew in my country has a great impact on the production of corn. Mildew not only reduces the yield of corn, but also leads to a decline in the quality of corn. If moldy corn enters the food chain, it will seriously endanger human and animal health. Yang et al. found that naturally moldy corn with different gradients linearly reduced the expression of dry matter (DM), organic matter (OM) and metabolizab...
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IPC IPC(8): G01N29/44
CPCG01N29/4418
Inventor 高万林晋艳云张晗宋越刘云玲
Owner CHINA AGRI UNIV