Based On The Design Of The Dual C / S Structure Of The Computer Control Remote Network Experiments

The distance education based on Internet is an important way to the development of education in 21th Century, but the distance learning of experiment courses is becoming a big barrier for distance engineering education. The work of this thesis is a creative study and provides a realizable method on the distance learning experiment of the ((computer control techniques)) course.Based on the requirement analysis, function definition and performance study, a double client/server system architecture , consisting of Net Server Device Server and Client ,was constructed. A programmable controller based on VbScript Script Language was designed .The system was developed with software engineering method by the steps of function analysis, synoptic design, detailed design, coding ,test and performance evaluate. Unite Modeling Language(UML) was used to describe the system design.Students can operation the remote devices via Internet. Students can code there control strategy by programmable controller environments, then control the real remote device and get the experiments' result. The system support remote-control mode and local-control mode, and can accomplish many control strategy includes PID control, fuzzy control, single-neuron control etc.Real-time remote access control is one of the new direction of computer control technique, and now is under seeking and developing. This thesis begins with system design of an remote access control experiment Virtual Laboratory(VL), and accomplished remote experiments via Internet by remote-control mode and local-control mode, at last, issues and limitations of remote-access control are discussed.