基于VR技术的机场应急救援虚拟演练平台

为解决机场实地应急演练中存在的成本消耗高、不安全、扩展性差等问题，研发基于VR技术的机场应急救援虚拟演练平台。平台采用模块化设计方案，并通过定义平台操作流程支持虚拟演练操作。采取分细节度的场景构建方法，运用细节层次模型以3层不同细节度模型方案将虚拟灾害场景划分为3类，同时利用Unity3D粒子系统控制机制实现火灾及灭火粒子特效的模拟，运用双顶层本体模型构建机场应急预案本体模型（AERPO），并利用XML Spy建立存储模型，且支持基于典型场景模型编辑形成整个灾害场景。结果表明:平台模块设置科学、场景效果合理，有助于提升演练人员应急处置能力。

Virtual drilling platform for emergency rescue of airport based on VR technology

In order to solve the problems of high cost consumption,unsafety and poor extensibility in the field emergency drills of airport,a virtual drilling platform for the emergency rescue of airport based on VR technology was developed.The modular design scheme was adopted,and the operation of virtual drilling was supported through defining the operation procedure of platform.The scene construction method with dividing the levels of detail was used,and the virtual disaster scenes were divided into three categories through the three-level model scheme with different levels of detail by using the detail hierarchical model.Meanwhile,the control mechanism of Unity3D particle system was used to realize the simulation on special effects of fire and fire extinguishing particles.The dual-top-level ontology model was used to construct the airport emergency rescue plan ontology model(AERPO),and the XML Spy was used to establish the storage model,which supported the editing and forming of the whole disaster scene based on the scene model.The results showed that the module setting of the platform was scientific,and the scene effect was reasonable,which contributes to improve the emergency disposal capability of the drillers.