A method for detecting the imperfection of grain grains

Abstract

The invention relates to a method for detecting the imperfection of food grains. The method comprises the following steps: acquiring collision sound information of each food grain and a specific object, extracting set characteristic information from the collision sound information, and comparing and judging imperfect grains in the food grains according to the characteristic information. The method disclosed by the invention has the following advantages that an impact excitation sound signal of the food grains and a metal plate in the free falling body process is utilized, and the imperfect grains are detected by virtue of extraction and analysis of the characteristic parameters of the signal, so that the detection method has the non-contact characteristic. In the whole detection process, the physical structures of the food grains do not need to be damaged, so that the detection method has the nondestructive testing characteristic; and moreover, according to the detection method, special requirements and limitations on the types and falling postures of the food grains are avoided, and the universality is high.

Description

technical field [0001] The invention relates to a method for detecting the imperfection of grain grains, which belongs to an online detection method for grain quality. Background technique [0002] Grain quality is a comprehensive index to measure grain quality. There are many factors affecting grain quality, among which the high content of imperfect grains is an important reason for restricting grain quality. According to the national standard GB1351-2008, the embryo or endosperm of grain grains is physically damaged or invaded by microorganisms, but grain grains that still have use value are defined as imperfect grains. Imperfect kernels mainly include damaged kernels, insect-eaten kernels, sprouted kernels, moldy kernels, etc. Due to the existence of imperfect grains, the seeding quality and eating quality of the grain are reduced, and the process quality and eating quality (such as taste, smell, etc.) of the grain are also reduced. On the other hand, the imperfect grai...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for detecting the imperfection of grain grains, which is used to solve the shortcomings of the traditional detection method for the imperfection of grain grains, such as slow detection speed, heavy workload, expensive instruments, and only quantitative detection. question

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