对工业对象中主要的被控参数电阻炉炉温进行研究,设计了硬件电路和软件程序. 硬件电路选用8031单片机, 软件程序采用两重中断嵌套方式.提出了一种PID 控制的方法, 即只调节Kp 一个参数, 来实现PID 控制. 与常规PID 三个参数调整相比,省时、高效, 为实现简易的自整定控制带来方便.-The main object of the Industrial Resistance Heater controlled parameter study and design of hardware circuits and software programs. 8031 hardware selection, software program using double interrupt nesting mode. Presents a PID control method, that is, Kp adjusted only one parameter to achieve PID control. with the adjustment of three parameters compared to conventional PID, time-saving, efficient, easy to achieve self-tuning control convenience.