| 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. 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-turning control. The temperature of resistor-furnace is a one-order inertial pure lagging system . By making computer simulation with MATLAB and adjusting Kp, we obtain a satisfied step response curve. |
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