Design And Implement Of Electric Circuits Virtual Experiment System

The system research on several kinds of virtual experiment realization technology has been conducted, especially for the core technology. We have produced the main body frame design about "Electric circuits virtual Experiment System", completed a lot of primary device three-dimensional modeling and the electric circuit connection algorithm and the check algorithm designing. The three-dimensional graphic engines which realizing the scene to roam has been developed. Finally, a high interactive "Electronic circuit virtual Experiment System" has bee accomplished, which uses the primary device as the experimental unit and has high simulation accuracy. The main work is as follows:1. In order to establish the three-dimensional model of virtual device, the software such as 3DSMAX, PHOTOSHOP has been applied. Immerses the nature for effective enhancement three-dimensional model lifelike degree and the overall system, may the interaction, reduces as a result of pursues the true feeling to create to the hardware requests excessively high, uses MilkShape 3D carries on the optimization to all three-dimensional models, basically has solved between the three-dimensional model true feeling and the resources expenses contradiction.2. The analog circuits simulation is an extremely complex, high specification, large amount of Computation quantity. This design uses SPICE 3F5 edition to take the electric circuit simulation the essence, in conducted the research after the SPICE correlation reference to carry on the second development to SPICE simulation software. The key point was has carried on the transformation to its output module, enabled it to make the correct analysis to the simulation result document to obtain the simulation result, again made the suitable sampling to the simulation result, enabled it both to provide the primary data for the electric circuit primary device condition change, and could reduce the sampling to need the time, increase timeliness.3. The object-oriented seal in view of the CIR document format to the electric circuit object and the experimental scene has carried on, and has designed the electric circuit connection algorithm and the inspection algorithm, former mainly provides the primary device parameter, latter provides the electric circuit connection situation description, through the two union, describes the electric circuit SPICE input document along with the electric circuit connection situation change real-time production.