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Design and Research on Fiberglass Embedded Temperature Control System Based on CAN Filed-Bus

Author: ZhouYou
Tutor: LiuJiaoZuo
School: Wuhan University of Technology
Course: Control Theory and Control Engineering
Keywords: Temperature control system CAN bus ARM Fuzzy PID
CLC: TP277
Type: Master's thesis
Year: 2006
Downloads: 179
Quote: 1
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Abstract


With the rapid development of China's science and technology, industrial automation technology level has greatly improved in recent years, CAN bus technology becomes more widely used in industrial control field, used to replace conventional distributed control system. Control system based on CAN bus applications in the production process, the production efficiency is improved dramatically. The subject comes from Jiujiang Yangtze glass fiber plant renovation project. Design a project aimed at temperature control system based on bus system used in the factory glass drawing workshop, used to control the temperature of the crucible furnace. The system is based on the CAN bus networking site control unit, the control unit uses 32-bit microcontroller, the system control performance is greatly improved. This paper describes the fieldbus-based control system control background, an overview of its technology development trends and application status. Discusses the development of CAN bus based glass drawing temperature control system the necessity and significance. Second, the principle of the CAN and CAN bus communication interface design methods. Combined with practical application, analyzed the CAN controller functionality and performance characteristics of the controller. Then again this than in the past 8-bit microcontroller performance has greatly improved ARM core-based embedded controller LPC2131 performance characteristics make the introduction. Then introduces the temperature control system to control the characteristics and application environments, the development of the overall design. This article focuses on the design of the control unit made a presentation, including the CAN interface hardware design, based on ARM core microcontroller hardware design, the temperature feedback signal acquisition and processing, AD conversion circuit design hardware module design. The design of each module and detailed analysis, design ideas are given, elements and design of the hardware circuit. Then this system functions according to the needs and the system's hardware design, develop soft ARM core-based microcontrollers software systems, including the PC program and on-site control unit program. Also gives software flow and partial source. Finally, the paper on the system stability and control strategies were studied. The introduction of fuzzy control constitutes a classic PID control fuzzy PID controller, the control system not only has a faster dynamic response, smaller overshoot, and has a high steady-state accuracy. The design of the temperature control system for conventional fieldbus proposed based on improved control scheme and overall design of the system is completed. Experimental results show that the control accuracy and control stability than in the past has greatly improved.

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation systems > Monitoring, alarm,fault diagnosis system
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