Application of intelligent PID algorithm in finance temperature control system
WU Xingchun1, ZHAO Jingyan1, YANG Xiulian1，YANG Yanyun2
(1.College of Foundation and Information，Yunnan Agriculture University，Kunming 650201，China;
2.Department of Assets Management ，Yunnan Agriculture University，Kunming 650201，China)
Abstract: Aiming at the problems of the timevarying，nonlinearity and uncertainty of parameters and the status that traditional PID control is hard to meet the high stable constanttemperature requirement, a new system based on intelligent PID controller and PIC1684 microcomputer was investigated in industrial furnaces. This system used thermocouple to measure the temperature of furnace, and the transmitter carried the signal to A/D0809.Then the PIC1684 microcomputer achieved the deviation according to being given values, carried on an intelligent PID control and outputted the control quantity to adjust the angle of silicon．Thus the system would control temperature. The results show that this temperature control system has the characteristics of static accuracy, adaptability, reliability, and antiinterference. And good effects of temperature is achieved by this controller in electric heaters.
Key words: temperature control; intelligent PID controller; microcontroller; electric heaters