Design of a Multi-Channel Temperature Circuit Monitoring System Based on PID Algorithm

Abstract:

This design aims to realize the LCD display and the thermostatic control of the temperature. The design uses the ATmega8 micro-controller as the core part of the temperature monitoring system and the PID control algorithm to produce a PWM wave to drive the photoelectric coupler MOC3061, which can control the SCR on and off and then change the value of average voltage. Through the RS232 bus, it can build an intelligent distributed network of monitoring system. The simulate module by the MATLAB software has been built up to get the parameter tuning of PID and then get the best heating method to control the temperature quickly and accurately. With the compact and flexible structure and the good and reliable function, the design is suitable to the industrial control, environmental monitoring, etc.

• Periodical: Advanced Materials Research (Volumes 588-589)
• Pages: 978-981
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.588-589.978
• Online since: November 2012
• Authors: Wei Wei Li
• Keywords: MATLAB, PID Algorithm, Pt100, SCR

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