Circuit Schematic Network Experimental System

This thesis focuses on design and realization of Networked Circuit Experimental System. It adopts the double-C/S structure with three sites: control site, server site and client site based on Internet. Different from the past simulative circuit experiments, the system provides the user with a remote accessible experimental environment based on the real laboratory equipment.This thesis includes five parts. Chapter 1 introduces the virtual laboratory development and applications abroad. The overall framework, content, and function of system are given in detail in Chapter 2. The mechanism of net communication is presented in Chapter 3. as well as TCP/IP protocol, the non-blocking CAsyncSocket class and the specification of the packet format and net communication flow. In Chapter 4, the design and implementation of control site are presented, including serial port communication, data acquisition card control and so on. Chapter 5 introduces the functional module and framework of client side in detail. The GUI programming is also very important. The chapter discusses the whole process of how to realize the functions. Finally. Chapter 6 generalizes the achieved work and recommends several suggestions for improving the function and performance of the system.