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Application and Research of Technology of Data Acquisition for the Automatic Control System Based on HMI

Author: YeMing
Tutor: ZuoMingGao
School: Wuhan University of Technology
Course: Applied Computer Technology
Keywords: Automatic control system HMI Data acquisition DDE Multithreading
CLC: TP273.5
Type: Master's thesis
Year: 2006
Downloads: 178
Quote: 4
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Abstract

Currently, the field of industrial control is very concerned about the use of real-time information, industrial production is also the same interests toward large-scale, high-speed, highly efficient, integrated development and automation direction. We are bound to the introduction of more advanced means of control and data acquisition technology, to make full use of all types of real-time information from the plant, improve production efficiency and create benefits for enterprises. The distributed computer automatic control system is the state-of-the-art computer technology into the traditional areas of industrial production, the use of computer-assisted industrial production. Monitoring and management of the sinter production line of this article is the work of a technical requirement. The sinter quality directly is closely related to the conditions of the roasting process, the automatic control system for effective monitoring of the production process, and take full advantage of the real-time information collected, draw conducive to the production of guidance and advice for management decision-making truthful and reliable real-time and historical data, and the smooth progress of the production target. The first real-time data acquisition technology, respectively, shared memory, dynamic link libraries, and dynamic data exchange technology concepts and features. Secondly, the overall structure of the design of the automatic control system, the main function of the system, structure and processes, hardware and software configurations, data flows and networking solutions. The paper also gives a finished subsystem design from the point of view of the project, about the scope of its control, and control functions. Finally, on the basis of the technology research and structural design to the finished product subsystem as the background, to achieve real-time data acquisition and communication. Completed the on-site data collection and transmission, operation and monitoring of the production process, human-computer interaction, control and alarm. Among them, InTouch is responsible for the development of man-machine interface, human-computer interaction, control part with alarm; VC written data acquisition program to accept both the data acquisition function, also integrates with HMI communication function, is the core of the system software. The data acquisition program is a front-end serial communication for data collected by the data acquisition card and smart at the same time as the DDE server to display the required data to send the man-machine interface HMI applications, while the HMI application acts as a client. In addition, advanced technology and process details are described. HMI combined with VC development, industrial data acquisition software has better real-time performance and versatility, but also for the plant's future further integration of information and lay a good foundation. Therefore, for automatic industrial process control applications, with high efficiency and significant economic benefits, certain referential significance.

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