With the improvement of control theory and electric technology, the intelligent controller for industry has been accomplishing. The digital controller based on single-chip computer has been applied widely, as its cabinet cubage,low-cost,abundant function, simple and convenient.PID temperature controller,as an importantc ontrold evice,have been widely used in producing chemical products, foods and many other fields.However, common PID temperature controller's PID parameters must be set by profes...