针对传统消防科普教育培训中存在的问题,研究利用虚拟现实技术搭建火场虚拟环境,构建一个火场逃生虚拟体验系统,并以Unity3D为基础设计平台实现了提高虚拟火场临场感的设计.其临场感的建立主要依赖于来自虚拟现实系统反馈的场景信息,同时通过环境控制系统改变用户的听觉、触觉、温感、光感等外界刺激信号.将这些信号与虚拟场景相融合并给予用户反馈,就可以提高用户对虚拟火场的直观感受.%In view of the problems existing in the traditional training of fire science popularization education, to build virtual environ-ment of fire using virtual reality technology was researched. The virtual reality simulation system for escape from fire was estab-lished, and using Unity3D as basic design platform, the design of improving the feeling in fire was made. The establishment of feel-ing mainly depends on the real-time feedback information of virtu-al reality simulation system,meanwhile,through the environment control system, the user's sense of hearing, touch, temperature, light stimulation signal can be changed. The user's feelings for vir-tual fire can be improved through matching these signals with the virtual scene and giving users feedback.
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