Design Of Temperature Control System Based On Microcontroller

With the improvement of control theory and electric technology, the intelligent control for industry has been accomplishing. The digital controller based on Microcontroller has been applied widely, as its cabinet cubage, low-cost, abundant function, simple and convenient. PID temperature controller, as an important control device, have been widely used in producing chemical products, foods and many other fields. The paper mainly introduces the application of the digital PID control algorithm, which, at present, is popularly used in digital control system, in Microcontroller temperature control system.The hardware and software of the temperature control system and the design of relevant interface circuit are described in this paper. The reliability of the system is specially considered, and a series of measures are realized. According to the difficulty to control of the system, methods of system control are analyzed based on the system identification, and realized the control algorithm in the Microcontroller system. The experiment data shows that the design of temperature control system based on Microcontroller is availability and rationality.