Design And Implementation On Remote Virtual Digital Logic Experiment

This article research on the digital logic experiment of the colleges and universities. The online digital logic experiment is a most important part of the whole online teaching system. This virtual platform is designed with B/S structure, users can participate in the virtual lab anytime and anywhere. By using the virtual lab platform users can enjoy the typical step of the experiment; they can get the true experiment result and feeling; they can communicate each other remotely. The virtual experimental platform we proposed in this paper can use in another field of engineering environment, especially fit for some danger, constructive and lack of equipment situation.In this paper we design a framework of the remote virtual digital logic experiment; users can realize their ideas by this platform. By researching on the virtual experiment technics and simulation technics this platform can overcome the limited of the fundings, equipment and location. This platform has a practical value of application and extension.By researching on the technic of software components, all devices of virtual experiment are packaged to improve the extension of the platform. According to the experiment needs new virtual devices can be added and used easily, virtual device database has shared with another participant directly.This virtual experiment platform used recursive algorithm of the message drived model to calculate the output of logic circuit. Virtual platform using the message drived module to simulate the signal flowing, using a recursive algorithm to analyze the result of the circuit. Algorithm can fit the need of experiment extension. A series of simulation experiment has been done to prove the effectiveness of the virtual experiment platform.