Abstract
A monolithic integrated circuits for resistance of the furnace control the temperature, precision and effective control of the advantages and to improve the efficiency of production and promoting scientific and technological progress and possess important actual significance. will MCS-51 monolithic integrated circuits of the hardware and software combined, and PID algorithms use of it, has control convenient, the configuration is simple and advantage that the flexibility is great, and can improve the technical indicator which is accused of temperature by a large margin. Revivification of resistance of the furnace control system is such an adjustment process: Monolithic integrated circuits to warm up by the testing, change by A/D chip get the corresponding figures to quantity and need to get the deviation, to offset by the handling of a control signal, the stove heats the power of resistance, System adopted more widely used PID control algorithm, put to test the temperature and set value temperature is compared，with PID control algorithm，calculate，adjust the input power，to achieve the purpose of the control the temperature. In the determination and control the temperature of the process LED by the display the temperature change process, at the same time, even on the device, reach the safe, when a firm control of temperature effect. The system design reasonable, perfect in shape and function and superior performance.
Key Words resistance furnace PID temperature control LED display
