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The Design of Control System for Textile Mill Workshop Environment

Author: ChengGaoXin
Tutor: LiJingZhao
School: Anhui University of Technology
Course: Control Theory and Control Engineering
Keywords: Textile workshop Temperature Relative humidity Fuzzy Adaptive PID PLC
CLC: TP273
Type: Master's thesis
Year: 2010
Downloads: 46
Quote: 0
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Abstract


The air conditioning system is important equipment, textile enterprises in order to meet the requirements of the textile production and improve working conditions, to control the temperature and humidity of the workshop environment is essential. At the same time, improve the degree of automated management of air-conditioning equipment and reduce energy consumption is also very important. The subject building workshop environment control system, applied to the textile enterprises. The sensor will send the collected data to the S7-200 CPU226, the completion of data processing by the PLC, the implementation of relevant procedures, action implementing agencies to achieve effective control of the temperature and humidity of the workshop environment. The control system to improve the accuracy of measurement and control, reduced energy consumption, shorten the period of regulation, while also reducing the labor intensity of the staff. This paper first describes the background of the subject, the existing problems of the textile enterprises air conditioning control system analysis identified specific programs to control workshop relative humidity and temperature. Description of the basic principle, affect the temperature and humidity control of the main factors studied the the spray axial fan system to be adopted, given the specific implementation method of the program. Secondly, this paper presents a multi-sensor information fusion technology applied to the temperature and humidity control system which maps data excluding negligence, the summation of the weighted average method and the effective data fusion. This paper uses fuzzy control and fuzzy adaptive PID control strategies, analysis of the basic principles of using MATLAB simulation and analysis of algorithms. Then, according to the requirements and strategy of the actual control of the textile workshop, equipment selection, the use of high-performance S7-200 CPU226 and the corresponding analog input and output expansion modules to external input devices and output devices, to complete the construction of the hardware aspects of . Hardware connections and parameter settings. Software, focusing on the completion of the fuzzy adaptive PID programming in the PLC, inverters and PLC USS protocol communications. In addition, the design of the main screen of the host computer touch screen, which constitutes a complete workshop environmental control systems. The system implements a workshop temperature and humidity changes, the real-time control of the operation of the air conditioning equipment, safe operation, while also effectively reduce energy consumption. To improve product quality and to improve the working environment for workers of the textile enterprises play a key role.

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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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