High-precision temperature control system based on PID algorithm

Author

Yang, Jun-Hong ; Bi, Xi-Yan-

Author_Institution

Dept. of Inf. Eng., Zhengzhou Railway Vocational & Tech. Coll., Zhengzhou, China

Volume

12

fYear

2010

fDate

22-24 Oct. 2010

Abstract

This system uses 8bit AT89C51 CPU as a core for building a electronic oven temperature control system with high precision, the temperature was changed to voltage signals by the thermal resistor PT1000 and amplified by LM358, then the analog voltage signal is converted to digital data by the AD0809. The PID algorithm was adopted as the software for power and temperature control of the furnace, the control accuracy is up to 0.2°C. At the same time, with a temperature display and can upload the data to PC for the data curve being printed. The experiment shows that it´s very useful in the practical system of agriculture and industry or household.

Keywords

control engineering computing; electric heating; microcontrollers; multiprocessing systems; ovens; power control; temperature control; thermistors; three-term control; AD0809; AT89C51 CPU; LM358; PID algorithm; PT1000; analog voltage signal; control accuracy; data curve; electronic oven temperature control system; high precision temperature control system; power control; temperature display; thermal resistor; voltage signal; AD0809; AT89C51 microcontroller; PID; Pt1000;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer Application and System Modeling (ICCASM), 2010 International Conference on

Conference_Location

Taiyuan

Print_ISBN

978-1-4244-7235-2

Electronic_ISBN

978-1-4244-7237-6

Type

conf

DOI

10.1109/ICCASM.2010.5622406

Filename

5622406