The monitoring methods of grain temperature monitoring system mainly include manual temperature measurement and automatic electronic temperature recorder. Manual temperature measurement is to manually measure the surface and internal temperature of grain piles using thermometers or infrared thermometers at different depths and positions of grain piles. This method is simple to operate, but requires manual intervention and may have the risk of inaccurate measurement1. The automatic electronic temperature recorder fixes the electronic temperature sensor inside the grain pile, records the changes in the temperature inside the grain pile at regular intervals, and transmits the data to the computer for analysis. This method can record temperature changes in real time, which is convenient for users to analyze and manage data, but requires certain equipment investment and maintenance costs.
Monitoring equipment
Grain temperature rod: It detects the temperature changes inside the grain pile through the contact measurement principle. It has the characteristics of high measurement accuracy, easy use, and strong versatility, but it needs to insert the grain temperature rod into the grain pile, which is more cumbersome to operate.
Grain temperature line: It detects the temperature changes inside the grain pile through the resistance measurement principle. It is more flexible. Multiple temperature sensors can be added at the end of the grain temperature line to monitor a larger area of grain pile.
Automatic electronic temperature recorder: It can record the temperature changes inside the grain pile in real time and automatically upload the data to the computer, making it convenient for users to analyze and manage the data. It can also connect multiple temperature sensors to monitor a larger area of grain pile.