Virtual Experimental Platform based on Network --Design and Implementation of Circuit Management Module Abstract Virtual Experimental Platform is a good platform to upgrade the quality of teaching. With the platform, we can simulate each steps and experiment effects of interface technology experiments totally by software. The mainly functions of the platform have been implemented in local computer version. But as the network gets increasingly important today, it is not enough to use a platform only in local machine. Obviously, it gets more and more important to improve the networking ability for the platform. As improving the networking ability, it will encounter many problems, such as the definition of circuit diagram files, the conversion of NAT, the selection of transmission channel and protocol, and etc. In the thesis, it is mainly to design a circuit diagram file format which is in accordance with virtual experiment platform. In the file format, it is necessary to describe the software module information which is used to simulate the device functions, besides the device information, the chip pin information, and the connectivity information of a general circuit. All the information is described in a self defined text file. As the platform is activated, it can implement different experiment by choosing different circuit diagram file. In the experiment, as updating connecting line is possible, recoding and saving the operations are required in the module. Furthermore, as another important basic function of the virtual experiment platform based on networking, circuit diagram file could transmit and update by networking.http://www.16sheji8.cn/ Key words: Virtual Experimental Platform; Network improvements; Circuit Management; P2P; NAT Conversion
