Grain information on-line monitoring system

Abstract

The invention discloses an on-line monitoring system for grain conditions, which includes at least one detection device. A detection device is installed in a granary. The detection device housing is provided with a gas collection inlet and outlet. The housing is provided with a detection circuit connected to a remote monitoring terminal. At least one electromagnetic valve is arranged next to the detection device housing, and the valve stem of the electromagnetic valve is connected to the detection circuit in the corresponding detection device. at the corresponding collection point. The detection circuit includes a single chip microcomputer, a temperature and humidity sensor, a carbon dioxide sensor and a micro air pump. The temperature and humidity sensor and the carbon dioxide sensor are respectively arranged in the first and second detection chambers in the casing, and the air filter, the first and second detection chambers, and the micro air pump are connected and arranged between the gas collection inlet and outlet. The invention is suitable for early detection of stored grain fungus and pest damage, and evaluation of ventilation effect in granaries, thereby ensuring the safety of grain depot managers.

Description

technical field [0001] The invention relates to a monitoring system, in particular to a monitoring system for monitoring and measuring changes in grain pile temperature, humidity and carbon dioxide content 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. ...

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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