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The Investigation of Embedded Temperature Controliing System for Gas-Burning Annealing Furnace

Author: MaGaoJie
Tutor: WangKai
School: Xi'an University of Technology
Course: Mechanical and Electronic Engineering
Keywords: Gas-burnig annealing furnace Fuzzy immune PID Real-time operating systemμC/OS-II Graphical user interface MiniGUI Embedded temperature controlling system
CLC: TP273
Type: Master's thesis
Year: 2009
Downloads: 44
Quote: 0
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Abstract


A better temperature control system of annealing furnace can promote production quality and manufacture efficiency. According the consumer’s needs and the dynamic characteristics of controlled object, the embedded microprocessor LPC2210 was used as a core of the hardware platform. The real-time operating systemμC/OS-Ⅱand graphic user interface MiniGUI were introduced as software platform. Combining embedded technology with fuzzy immune PID control theory, an aptitude inspect system has been developped. It has functions of the real time temperature sampling, displaying, data storing, real-time control and information communicat-ing.Memory circuits, communications circuits, input and output circuits, the system power and reset circuit, and temperature information sampling and processing circuit have been developed in this thesis. Working principle and architecture of the real time operating systemμC/OS-Ⅱand MiniGUI have been analyzed, and they have been transplanted to the target hardware board. At last, an embedded temperature controlling system with friendliness man-machine conversation interface and multitask function.In this thesis, several temperature controlling algorithms have been designed, they are general PID, fuzzy self_tuning PID and fuzzy immune PID. According simulation results, it can be found that among these algorithms, the fuzzy immune PID algorithm has properties of no overshoot, quick response. And it also has better capability of self-tunine, immune and stableness. Thus it is suited to real-time temperature controlling.The exprement indicates embedded temperature controlling system can achive demands for actual temperature controlling. The developped temperature controlling system has value of reference for practice production.

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation systems > Automatic control,automatic control system
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