Research On Fire Training System Based On Virtual Reality Technology

With the development of social economy in our country,the increase of urban high-rise buildings and large-scale complexes and the increase of urban population density have led to more and more complicated fires.Faced with the occurrence of various types of fire accidents,raising firefighters' level of fire rescue has become one of the means to improve the fire safety in China.In the traditional fire drills,the unpredictability and suddenness of training accidents are very difficult to prevent.Once an accident occurs,if it is handled improperly or cannot be dealt with in time,it will endanger the lives of firefighters.The cost of training forms is relatively large,and it is generally not reusable.The consumption of manpower,material resources,and financial resources is relatively serious.The development of virtual reality technology provides ideas for fire education.Virtual Reality Technology(VR,Virtual Reality)is a computer simulation system that can create and experience a virtual world.It uses a computer to generate a simulated environment,providing users with various sensory stimuli such as sight,hearing,and touch.The user uses this method to communicate with the user through helmet-type displays,gestures(data gloves),posture(data clothes),and natural language.An environment(and virtual objects,characters therein)interact in real time,bringing an immersive immersive experience.Virtual reality technology integrates computer graphics,human-computer interaction technology,sensing technology,artificial intelligence,computer simulation,stereoscopic display,computer networks,parallel processing,and high-performance computing.It uses computers to generate realistic three-dimensional vision.Feelings of hearing,touch,etc.,make people as participants naturally experience and interact with the virtual world through appropriate devices.This research is mainly based on the relevant theories of virtual reality technology and fire training.Firefighters are used as target objects for system development.Based on Unity 3D engine,a set of virtual reality fire fighting training system has been developed,and its use effectiveness has been constructed.The model of the effectiveness of the actual fire-fighting system is used.Finally,a quantitative empirical study is conducted to test the model.The specific research content is as follows:The first chapter puts forward the core issues of the research,expounds the theoretical significance and practical significance of the research,and uses CiteSpaceV software to conduct research hotspots and trend analysis on the relevant literature,and put forward the research and innovation.The second part is the definition and theoretical basis of related concepts.Based on previous research on theory and practical results,the concept of virtual reality technology,virtual reality system,and fire protection are defined.Chapter 3 describes the features and architecture of the system,and provides a simple analysis of system development tools and hardware support,including modeling software such as 3ds Max and Maya;game development engines such as Unreal Engine,Unity 3D;Common VR devices such as Microsoft HoloLens,Oculus Rift and HTC VIVE.The fourth chapter is based on Unity 3D engine and HTC VIVE virtual reality equipment,design and development of virtual reality fire training system,the system design and development is divided into three parts: interface design,scene design and function implementation.Among them,the function realization mainly includes six functions: recruit training,daily familiarity,VR training,simulated command,theoretical answer,and typical battle.Chapter 5 builds a structural equation model using Amos 24 software to test the effectiveness of the system in fire training.In this study,the ease of use,functionality,attitude and effectiveness were used as potential variables,and the use attitude was used as an intermediate variable to establish a factor model for the effectiveness of the use of a virtual reality fire training system.The collected data was tested against the model's fitness and finally came to a conclusion consistent with the research hypothesis.The sixth chapter analyzes the deficiencies of this study,and proposes the next research plan for the existing deficiencies.The second chapter uses CiteSpaceV software to draw scientific knowledge maps of CNKI(Chinese HowNet)database related documents,including author cooperation network map,agency cooperation network map,keyword co-occurrence network map,research frontier time zone map,etc.,combing virtual in recent years The current frontier of fire research and trends.Chapter 3 describes the features and architecture of the system,and provides a simple analysis of system development tools and hardware support,including modeling software such as 3ds Max and Maya;game development engines such as Unreal Engine,Unity 3D,Anvil Engine,and Frostbite Engine.;Common VR devices such as Microsoft HoloLens,Oculus Rift,HTC VIVE,and PlayStation VR.The fourth chapter is based on Unity 3D engine and HTC VIVE virtual reality equipment,design and development of virtual reality fire education application system,the system design and development is divided into three parts: interface design,scene design and function implementation.Among them,the function realization mainly includes six functions: recruit training,daily familiarization,VR training,simulation command,theoretical answer,and typical battle cases.Chapter 5 builds a structural equation model using Amos 24 software to test the effectiveness of the system in fire education.This study uses the ease of use,functionality,attitude and effectiveness as potential variables,and uses the attitude as an intermediate variable to establish a model of the effectiveness of the use of virtual reality fire education applications.The collected data was tested against the model's fitness and finally came to a conclusion consistent with the research hypothesis.The sixth chapter analyzes the deficiencies of this study,and proposes the next research plan for the existing deficiencies.