Design Of 3D Virtual Laboratory Based On Digital Circuit Simulation

Virtual reality technology as a new means and resource plays an important role in various fields such as architecture, chemistry and medicine. Recently, Introducing virtual reality technology to laboratory becomes a hot issue in higher education,Which can build immersed and interactive environment, The paper regards digital circuit experiment as the main body.The whole design is based on virtual reality technology to explore, which can simulate electrical experiment box,typical chip and function structure of scene. It's good for students to choose experiment time and place, strengthening innovation ability and logical thinking, generating vivid, interactive and efficient teaching mode.This paper is based on virtual instrument, virtual experiment and virtual reality technology to list architectural design, technical route and the specific solution of 3D virtual experiment. Using 3ds Max modeling tools and the unity 3D game engine can create a 3D interactive virtual digital circuit experiment environment, For example, static model, dynamic interactive control module, and the experiment operation feedback mechanism. Putting combined logic circuit and temporal logic circuit of electrical experiment as the object, this paper builds virtual instrument and the model of virtual environment in 3ds Max, including the digital circuit experiment box, all kinds of logic function chip, experiment tables and chairs, lights, light emitting diode, wires and experimental environment, etc. Using c# describes the relationship of experiment operator circuit connection input and output effect in unity, which is a complicated logic control relation.Finally the paper has realized simulation of virtual digital circuit experiment visually. Among them, the function design of virtual experiment is made up of power switching total control module, collision output control module of operator clicking on the virtual instrument, chip logic function module, circuit connecting control module, text outputting control module, experiment interface jumping control module, experiment resetting control module, operator angle control parts and so on. thus, It has recreated the digital circuit experiment in the angle of three dimensional space.The laboratory has both excellent maneuverability and manipuility.It features fully functionality, lifelike and vivid scene,which can stimulate students' creativity and imagination, enjoying potential application value and development value in the field of teaching.