| In recent years,Sichuan Province has strengthened the training and education of students’ earthquake escape ability.The traditional earthquake escape drill has various shortcomings and inconveniences,such as high cost of implementation,more resources,inconvenient coordination and organization.The emergence of VR virtual reality technology can carry out online escape drill through 3D virtual environment,which can solve various problems and deficiencies of traditional drilling mode.In order to strengthen the students’ ability and consciousness of earthquake escape,Mianyang vocational and technical college organized and implemented a set of earthquake escape drill system based on 3D virtual scene.In this thesis,the design and implementation of the system are analyzed in detail.The main works of this thesis are as follows:(1)According to the functional orientation of the system,the principle of the key technologies is analyzed,including rigid collision detection technology in virtual environment,path trajectory detection technology,scene rendering technology,etc.,to provide technical support for system development.(2)Based on unity3 d,3dsmax and other 3D modeling tools and service engines,the 3D virtual scene creation process of the system is studied in detail.Combined with C#programming technology,a complete 3D Virtual Earthquake escape drill environment is constructed.At the same time,the design and analysis of the web service function of the system server are carried out,and the overall function operation mode of the system is investigated.(3)The system is deployed and launched based on the software and hardware environment of school information room.The client 3D virtual environment function is deployed based on C/S mode,and the server function is deployed and published based on Web services.At the same time,through testing and analyzing the system,it is concluded that the system has achieved all the expected development goals.At present,the earthquake escape drill system has been applied in Mianyang Vocational and Technical College.It provides students with online environment support for earthquake escape training based on PC terminal,and solves the problems and shortcomings of traditional drilling mode,such as high cost and inconvenient development. |
