Study Of The Wire Production Line Network Closed-loop Intelligent Control System

The trade of wire and cable is an important industry in the economic construction of our country, it is closely related to every walk of life of national economy and even world economic development. The research and development of its equipment making technology is important to improve our industry of wire and cable.Combining with an actual lab project, the wire diameter control method is discussed mainly. To solve the control problem of wire diameter with long lag and nonlinear property in wire production lines, in this paper, So a good control tactics- Dynamic matrix Control with no depending on system model, strong anti-interference ability and good robustness was proposed ,it is the one of predictive control. The predictive control has the following characters: good self-tuning ability, fast response, little overshot, short adjust-time and strong robustness, etc. It has higher control precision without the necessary of precise model, so it can control the time-delay system.The paper gives the Active X control design method of Dynamic matrix Control. Kingview software is used to realize the data communication and data change because it uses Active X on Windows standard control protocol support, the control effect of Dynamic matrix Control arithmetic module is validated through the process control system experimental device for control of flow, the actual flow control curve shows the feasibility of Dynamic matrix Control arithmetic module.Lastly, a structure of two single layer network for the wire production line based on Profibus field bus technology is designed in the paper. And methods of the field network configuration, parameters setting of host and slave stations as well as data communication under STEP7 software environment.