| Since the 21 st century,many newly developed technologies,like deep learning,virtual reality technology(VR),5G etc.are leading people a technological revolution.In a short period of time,those various technologies have been applied to practice,such as the deep learning in face recognition,the deploy of 5G base stations,and the VR technology in various fields like video,education,medical and military,etc.Among them,VR is relatively more mature and particularly eye-catching,with the largest span and the widest application fields.Now it has become one of the focus of current technological development.Computed tomography imaging is an important subject with wide application prospects and strong practicality.Computed tomography(Computed Tomography,CT)equipment cannot meet the operational needs of learners as its large footprint,immovability,the delicate and complex internal parts,and valuableness.Students and users who want to understand the knowledge of CT equipment can only learn the theoretical knowledge without the actual contact to CT equipment.Considering the current status of CT equipment applications in China,the virtual reality simulation system can be a solution.The system can achieve the immersive effect by VR equipment with its immersion and interactivity.While solving the above problems it can also stimulate users’ interest in learning.This virtual simulation system is taking CT machine as an example,this study uses virtual reality technology to simulate its working environment,equipment structure disassembly,principle explanation and simulation of working process.In the teaching of medical imaging equipment in colleges and universities,audio-visual teaching is used to create a situation,stimulate the healthy and positive learning experience of students,improve the teaching quality,reduce the teaching cost,train modern skilled talents.In this paper,the current research situation of virtual reality at home and abroad is firstly introduced.Then the development requirements of the CT principle virtual simulation experiment teaching system are analyzed.When completing the creation of the model through 3DMax,Unity3 D is adopted as a platform to build the system and the created FBX model will be imported into it.The rendering of experimental scene,human-computer interaction,the change of camera view,drag and rotation,all those function will be designed and realized on the platform.JavaScript script is used to control the display of software module like UI,user login,principle experiment and so on.The stability and compatibility of the system is tested in the functional and non-functional aspects of the system.Finally,the system will be packaged and released to the webGL version for users.The CT machine simulation system is applied to the teaching of medical imaging equipment,combining the real with the virtual,to realize the disassembly of CT machine,the display of structure principle,and the virtual simulation of operation,which brings about great changes for the theoretical and practical teaching and provides strong technical support for the digitized management of information. |