Grain storage has always been crucial. In recent years, research shows that low temperature storage can well solve the traditional storage method in the insect, mildew and other losses, this paper is design a drive system based on semiconductor refrigeration of solar power supply to control the semiconductor refrigeration by using ATMEGA16 SCM to realize the purpose of refrigeration and using small confined space to simulate a Wuhan granary, through the analysis of the experimental data by using qualitative and quantitative analysis method,the ...