Analysis On Network Control System And Research On Design Methods Of Network Laboratory

The structural and networkablet along the opening direction has become the generaldeveloping trend of technological innovation for control system in the areas of the control.Network control systems (Networked Control Systems, NCS), refers to closed loopfeedback control system which was formed by the sensor, controller, actuator and other computerserial communication network. Networked control system is more and more used in the complexindustrial control field, such as DC control system, weapon system, telemedicine, robot control,remote teaching and experiment, field bus and industrial control, the field of education, buildingautomation, home automation, intelligent vehicle system, aviation and spaceflight, mobile sensornetwork etc. In other fields such as NCS satellite attitude control, power system, air control,enterprising management, modern logistical, robostics also have wide ranges of applications.Therefore, study on the networked control system has the important significance in theory andapplication.Although the network control system has more advantages than traditional system, due tothe network involvement, and its complex in uncertain time-varying, the study on networkcontrol system is more complicated and challenging.This work includes the following aspects:In the first part: the characteristics of networked control system, in research significance,the classification of NCS, the structure and mathematical model of networked control systemshave been discussed based on the current study development and main applications.In the second part: focusing on the network control system of the basic problem undertookstudy, time delay control methods have been given.Farther more, the influence of time-delay on system performance has been discussed.thestability analysis on the networked control systems with time delays.The algorithm has been,improved in hybrid scheduling without changing the actual case and the sampling period toreduce network control time delay. It can improve the system dynamic performance. Based onthe CAN bus network control system, the simulation results show that this algorithm iseffective in information scheduling.Through the analysis on the design method and the research present situation of the networkcontrol system, the control methods and control strategy have been discussed.In the third part: in order to remote user just as in local experimenter as real as theexperimental experience, the network laboratory system has been design. Based on thenetworked control system.By VB in the network lab, users can create, modify custom experimentcontent. Administrators, teachers, students can communited each other on the system.Network laboratory is the applioation and development of NCS. The sharing of resourceshave been enjoyed each other. Finally, the time delay on the Network Laboratory of remotetransmission problem has been analysis.