Research And Design Of Campus Running Fitness System Based On Virtual Reality Technology

With the improvement of people's living standard and income,people's understanding and demand for fitness have been deepened.As a result,there have been a lot of research and exploration on running fitness system.Virtual reality technology,as a product of cross-integration of many related disciplines,has always been favored in various industries.The virtual reality technology is applied to the development of running fitness system.It realizes the connection between virtual scene and real world,provides a friendly way of interaction,enables users to immerse themselves in the running experience of virtual scene,and has higher authenticity and multi-dimension,at the same time,it can achieve the purpose of fitness.There are still some problems in the design and development of virtual reality fitness system such as backward concept of interaction,single function,no consideration of user characteristics,passive user position,imperfect collision detection,lack of actual experimental verification,etc.The virtual campus running fitness system was developed and designed by the combination of prototype method and structured design method.An optimized collision detection algorithm combining box collision and mesh collision was proposed and scripts were written to attach it to the scene.The system was improved and debugged with users' feedback.Finally,the feasibility and practicability of the system were verified by cardiopulmonary endurance test.First to establish a preliminary virtual campus scene by creating a 3D model and mapping its material with 3ds Max modeling software for a specific group of teachers and students,and then they were imported into Unity3 D engine to integrate the scene.The terrain,tree environment,lighting effect,sky box,character model and car models were added into the scene.Small map location guiding,one and three person visual angle switching,animation and sound effects,database linking and other functions were customized according to user demands.After that the scene was run,debugged,solved the problems,rendered and published to the two terminal platforms including PC and Android.First the application was verified in the computer and mobile phone.Last the exercise cardiopulmonary tester,treadmill,VR glasses and other hardware devices were connected to the whole virtual running fitness system by computer interfaces.Experimenters were selected to participate in the test to prove the virtual system,and the experimental data was stored in the database.At the same time,the function of displaying experimental data results was added to the interactive display interface of the system,which was convenient for users to query and compare.Through experimental verification and feedback of users,the whole virtual campus running fitness system had basically completed the design of all the required functions.The optimized collision detection algorithm simplified the calculation process and saved computing time.The system run more smoothly and efficient.The interface was designed more reasonably and humanized.The interface data display was more convenient and intuitive.The whole system can provide users with a stronger sense of immersion experience,so that users can addict themselves to the running fitness more comfortable and much longer.It also promoted the improvement of cardiopulmonary endurance and realized the real virtual reality running fitness.The simulation and user evaluation of the system prove that the proposed optimization algorithm is effective and feasible.It can solve the collision detection problems quickly and accurately in the virtual campus scene.The prototype method combined with the structural design method has successfully completed the development and design of the whole system,which proves that it is feasible to integrate the virtual reality technology into the running fitness system.