Method and device for detecting biological hazards of stored grain

Abstract

The invention discloses a method and a device for detecting biological hazards of stored grain. A specific implementation of the method includes: S1, collecting the humidity value RH of the grain pile, the temperature value T and the carbon dioxide concentration value CO 2 , and calculate the grain moisture content Mc and the predicted value F of stored grain microorganisms; S2, judge CO 2 Whether it is <1000ppm: if yes, judge the grain storage is safe; otherwise, go to S3; S3, judge whether the RH is ≤ 65%: if yes, judge that there is pest damage and issue a pest alarm; if not, go to S4; S4, judge RH Whether ≤ 75%: if yes, transfer to S5; if not, transfer to S6; S5, judge whether T meets the temperature preset condition: if yes, perform ventilation alarm; otherwise, transfer to S6; S6, determine microorganisms based on F Hazard class and based on CO 2 Determine the hazard level of insect and mildew activity, and determine the biological hazard level of stored grain based on the microbial hazard level and the insect and mold activity hazard level and issue corresponding alarms. This embodiment can timely and accurately judge and give an alarm on the biological hazard of stored grain.

Description

technical field [0001] The invention relates to the technical field of food science. More specifically, it relates to a method and device for detecting biological hazards of stored grains. Background technique [0002] At present, there are thousands of national and local grain depots in my country, which are distributed all over the country. The losses caused by stored grain in my country mainly include rats, pests and microorganisms (fungi). Among them, the detection of pest hazards and microbial hazards (which can be collectively referred to as insect mold hazards) is mainly carried out by measuring the temperature of grains. There is a serious lag in the detection of insect and mold hazards in grain conditions. When the grain temperature rises, the insect and mold hazard may have reached a very serious level, so that the staff cannot take timely measures to deal with it. [0003] Therefore, it is necessary to provide a stored grain biohazard detection method and devic...

AI Technical Summary

Problems solved by technology

Among them, the detection of pest hazards and microbial hazards (which can be collectively referred to as insect mold hazards) is mainly carried out by measuring the temperature of grains. There is a serious lag in the detection of insect and mold hazards in grain conditions. When the grain temperature rises, the insect and mold hazard may have reached a very serious level, so that the staff cannot take timely measures to deal with it

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