Grain depot management requires high environment, and grain temperature is one of the important indexes to ensure the safe storage of grain. Only by timely and accurately measuring the grain temperature data of all levels of grain piles, and analyzing the grain storage situation according to the detected temperature and humidity data, and taking measures can we avoid the loss of grain in the storage process. In addition, it should be waterproof and moisture-proof, avoid direct sunlight, and monitor pests/mice/birds.

There may be water leakage from air conditioner, damp warehouse, condensed water, water flooding in rainy days, damp and moldy goods, and it is difficult to achieve all-round real-time monitoring even if someone guards it 24 hours a day;

The heat transfer of grain piles is slow, which makes people feel extremely poor. It is necessary for managers to often enter the sultry and suffocating granary to detect the temperature and humidity of the grain pile, and constantly carry out heavy physical labor such as turning over the pile and ventilation, which is not only very harmful to human body, but also unscientific and untimely, so the situation of grain moth-eaten and mildew occurs for a long time;

Grain is easy to deteriorate in the sun, so it is necessary to detect the light, which is easy to be ignored by manual inspection;

How to know for the first time that the warehouse is out of power and the equipment such as air conditioner and dehumidifier is not working;

No matter whether someone invades or vibrates, even if someone guards all day, it is difficult to monitor the above problems in real time;

Most grain storage enterprises also rely mainly on manual detection to regularly detect the temperature of granaries. However, the grain depot covers a large area, the granaries are scattered, and there are many temperature monitoring points in the granaries. Manual monitoring has a large workload, low efficiency, long detection period and easy to miss detection. In addition, the damage rate of measuring equipment is high, so it is difficult to ensure the testing accuracy. Can't do visual management.

How to control the temperature and humidity environment of granary?

The main parameters of safe storage of grain in granary are temperature and humidity. In normal storage, the water content of grain is generally below 12%, which is safe. Once the water content of grain reaches more than 20% due to water inflow, dew condensation and dampness in the granary, the grain will germinate with water, and its metabolism will accelerate, resulting in respiratory heat, which will suddenly raise the local grain temperature, cause the grain to be "hot" and moldy, and may form a chain reaction, thus causing irreparable losses. The granary environment monitoring system of the Internet of Things can monitor and solve such problems in real time, control the ventilation system, and use natural ventilation to scientifically control the temperature and humidity inside the granary.