A method for judging the situation of stored grains

Abstract

The invention discloses a storage grain accumulated temperature calculation method, which comprises the following steps that step 1, a temperature acquisition period ta and a temperature mean value calculation period td are determined, wherein the unit of ta is hour, the unit of td is day; step 2, the numerical value of the temperature base point Te is set; step 3, the grain temperature is collected and the average temperature Tsij of the grain is calculated; step 4, the numerical value of the average temperature Tsij is determined, and equivalent accumulative temperature calculation is carried out when the numerical value of the average temperature Tsij is higher than the numerical value of the temperature base point Te. By detecting the grain accumulated temperature, the heating degree of the grain can be reflected in real time when the grain is subjected to wet heat, quality evaluation and quality tracing of the stored grain are facilitated. The invention further provides a method for judging the grain condition of the storage grain.

Description

Technical field [0001] The invention relates to a method for determining the condition of stored grains and belongs to the field of grain drying. Background technique [0002] In order to ensure food security and supply balance, my country has adopted a 1-3 year grain reserve rotation system. That is to say, the storage time of the stored grain is 1-3 years, so that the quality of the grain is likely to decline and even age due to unfavorable storage conditions. Since 2000, through the promotion of the "four-in-one" new grain storage technology, grain storage facilities have been greatly improved, and grain condition monitoring technology has also developed rapidly. However, so far, no real-time and rapid comprehensive indicators and monitoring methods that can fully reflect the heat and humidity of grain storage have been proposed so as to realize the quality evaluation of stored grain, the storage process control and the quality traceability of the subsequent processes. [0003...

AI Technical Summary

Problems solved by technology

In order to monitor the changes in the grain conditions during the grain storage process, the existing technology usually arranges sensors evenly in the granary, and collects information such as grain temperature and humidity through the sensors at fixed points and timing. The amount of information and data is large, and the staff cannot interpret the grain in real time and quickly. Quality changes, the value of scientific management of grain depots needs to be further explored

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