In this paper, we study the temperature of resistor-furnace which is a main controlled Parameter in the industrial object,and hardware and software are designed. The microcontroller 8031 is used in hardware and dual interrupt nesting mode in software. Adopt 8031 single chip microcomputer in design to carry out detection and control for the temperature of resistance stove . A new PID control technique,only adjusting one Parameter KP for achieving PID control,is developed. Comparing with common PID adjusted by three Parameter, it’s high efficiency and convenient for simple auto-tuning control. The temperature of resistor-furnace is a one-order inertial Pure lagging system .By making computer simulation with MATL AB and adjusting KP,we obtain a satisfied step response curve.
The system have many advantages such as the structure is advance and reasonable, the function is perfects , the control precision is high , the ability of interference rejection is strong ,the versatility is good and so on .the social benefit of system is very good.
Key words: resistor-furnace PID adjuster computer simulation temperature control