Portable grain information detection device

Abstract

The invention discloses a portable grain situation detection device, comprising a shell which is provided with a gas collecting inlet and a gas collecting outlet; the shell is internally provided with a detection circuit which comprises a single chip microprocessor, a temperature and humidity sensor, a carbon dioxide sensor and a micro-typed pneumatic pump; the temperature and humidity sensor and the carbon dioxide sensor are connected with the single chip microprocessor which is connected with the micro-typed pneumatic pump by a power driving unit. The portable grain situation detection device can be held by hand for use, is convenient for carrying, has fast detection speed, simple operation and exact result, and can meet the requirement of grain situation detection in national grain depots. The portable grain situation detection device of the invention is suitable for the early detection of grain storage fungi and pest damages, and ventilation effect evaluation in a grain depot, and ensures the safety of the management personnel of grain depots.

Description

technical field [0001] The invention relates to a detection device, in particular to a detection device for measuring changes in temperature, humidity and carbon dioxide content of grain piles caused by fungi and pests. Background technique [0002] my country is a big country of grain production. In 2000, the grain output was more than 950 billion catties, and the per capita consumption was more than 700 catties. In 2007, it had exceeded 1 trillion catties. The quality and safety of stored grain is related to the development of the national economy and social stability in our country, and is closely related to people's livelihood. It has always been highly concerned by the party and government leaders. 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 our country are mainly rats, pests and fungi. and the harm of pests can be effectively prevented. But the harm...

AI Technical Summary

Problems solved by technology

However, the hazards of stored grain fungi have not been resolved, and it has affected the safety of my country's stored grains

At present, the detection of grain conditions in my country's grain depots mainly uses the method of measuring grain temperature to predict grain conditions. This method has the following shortcomings in grain situation prediction: 1) Grain is a bad conductor. method to predict the grain situation, there is a serious lag, so that the staff can not take measures to deal with it in time; 2) Some fungi produce very low heat during the growth process, such as Aspergillus gray aeruginosa, so it is impossible to use the current method of measuring grain temperature Comprehensive prediction of fungal hazards in stored grain; 3) The method of measuring grain temperature is seriously affected by environmental factors, and the accuracy is not high; 4) The measurement temperature range is small

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