温度是一个很重要的物理量，在现代工农业生产中，对它的测量与控制有十分重要的意义，特别在冶金、机械、食品、化工等工业中，对工件的处理温度都要求严格控制，对于温度的精确度和稳定性均有较高的要求。此系统采用AT89S51作为控制内核，还有按键、报警装置，实现了完全自动控制。-Temperature is a very important physical quantities, in modern industrial and agricultural production, its measurement and control are of great significance, especially in metallurgy, machinery, food, chemical industry, processing of the workpiece temperature require strict control The temperature accuracy and stability have higher requirements. This system uses AT89S51 as the control core, as well as buttons, alarm device, to achieve a fully automatic control.