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阐述了创建雷达干扰仿真系统的三个具体环节即雷达干扰的数学建模,虚拟场景的渲染实现,Java交互设计,以及在各环节中用到的技术细节. 相似文献
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虚拟现实技术在多媒体教学中的应用 总被引:1,自引:0,他引:1
虚拟现实技术在多媒体教学中具有重要的作用.本文分析了VRML文件的基本结构及建模方法,着重探讨了3DS MAX的VRML建模流程,并给出了在Authorware和PowerPoint中实现的具体方法. 相似文献
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文章介绍了虚拟现实技术,虚拟现实技术在电子商务中的应用。在建模上,对比了3dmax建模、照片建模以及全景图建模三种建模方式,分析三种建模方式的适用条件、优势和特点,寻找针对电子商务产品快速建模的方法。在三维产品展示和交互上,介绍了Unity 3d软件,给出实现三维交互的方法。 相似文献
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归纳了当前在科研和应用领域中的热门课题———虚拟现实技术的含义、“3I”特征及应用形式。提出了虚拟现实技术在现代测控系统中应用研究的实现框架。在此基础上着重讨论了虚拟现实的VRML97的实现。最后进一步展望了该技术在测控领域的发展前景。 相似文献
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随着虚拟现实和Java技术的迅速发展,它们之间的结合使得交互性的实现变得更加容易,将这些技术应该到室内装潢中就可以与客户进行交互设计从而解决了客户对室内装潢的要求的多样性这个难题.文中研究并实现了基于虚拟现实和Java技术相结合的室内装潢模型.虚拟现实技术应用于室内装潢比传统的方法具有较多优点,同时在工程设计中虚拟现实技术具有更广泛的应用前景. 相似文献
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虚拟现实技术在视景仿真系统中的应用 总被引:10,自引:6,他引:4
利用虚拟现实技术可以在仿真系统中构建出逼真的三维虚拟环境。讨论了虚拟现实技术的涵义和特征,重点研究了在实现一个视景仿真系统时所用到的关键虚拟现实技术,并给出了虚拟现实技术在一个军事模拟训练系统的三维战场视景仿真中的具体应用。 相似文献
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如果在软件产品的开发过程中试图给用户提供原型进行测试,不但困难而且成本巨大.针对该问题,采用纸面原型设计方法,从使用者的角度,分析了虚拟漫游仿真系统导向标识开发过程中"中间工作产品"的问题,并利用纸面原型进行有用户参与的测试.对用户的反馈意见和测试结果进行了分析,对导向标识进行了相应的改进,有效地指导了虚拟漫游仿真系统导向标识的开发.结果表明,在软件产品过程中,纸面原型方法是节省开发时间、节约开发成本的有效方法. 相似文献
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高德勇 《自动化与仪器仪表》2011,(5):168-169,172
对变互式虚拟现实系统的州论与技术进行了研究。理论研究主要针对二维数据存数捌席中的存储、二维坐标的对应算法及虚拟现实交互式技术的应用。存WEB环境下,能够创造一个实时逼真的虚拟现实环境,并将此环境应用于查询等交互式过程。 相似文献
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The most important goal of virtual reality is to create a virtual world computers where users are allowed to view the environment and control the virtual objects interactively.Traditionally,virtual reality systems use 3D computer graphics to model and render a virtual environment in real time.However,this approach usually requires laborious modeling and expensive special-purpose rendering hardware.Image-based rendering is a new approach in composing a virtual environment in which a set of panoramic images is used to compose the virtual environment and walking in the space is accomplished by “hopping”to different panoramic points.This paper introduces an experimental image-based VR system.The techniques utilized in the system,in particular the authoring and interactive control tools of the system,are described in detail. 相似文献
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A hardware-independent virtual reality development system 总被引:4,自引:0,他引:4
Simulating virtual reality (VR) hardware allows programs to be written in a desktop environment without constant use of limited VR resources. Rather than shifting constantly between VR and workstation environments, developers at the Electronic Visualization Laboratory (EVL) wanted to be able to test VR applications on the normal workstation console. We therefore created a software simulator for VR development. It simulates various VR system features with an interface that runs on an ordinary workstation. The simulator is implemented as part of the CAVE library, the programming library originally written to support the CAVE hardware. It can, however, be used to develop applications for several VR systems, including ImmersaDesks and head-coupled displays. The library itself has been designed so that use of the simulator or any supported hardware is entirely transparent to application code 相似文献
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介绍了煤矿电网灾害监控预警系统的网络硬件框架、软件体系结构及所实现的功能,阐述了系统设计与实现过程中的关键问题及解决办法。实际运行表明,该系统实现了煤矿电网管理的智能化、数字化、矿井电力参数测控的现代化,解决了许多困扰煤矿生产现场多年的井下供电监控技术难点与安全运行中的重大隐患问题,具有一定的推广意义。 相似文献
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The airborne particles present in certain hospital environments, such as the tuberculosis isolation or operating rooms, can be extremely harmful for patients and/or hospital personnel. An important issue during the design of hospital facilities is an efficient airborne particle removal system. A near-optimal setup of the parameters that affect the airflow, and consequently the airborne particle trajectories within the room is desirable. Computational Fluid Dynamics (CFD) is an alternative to tedious and time-consuming experimental investigations during the design phase, when a large number of alternatives need to be evaluated. The main limitations of CFD application in building design are the high level of skill required, the complexity of the setup phase, and the difficulty of output data interpretation using common 2D (two-dimensional) display devices. A virtual reality (VR) environment can help in overcoming some of these limitations. A CFD/VR procedure for design of contaminant-free hospital facilities is presented in this paper. By means of a VR preprocessing step, inferior solutions can be discharged to drastically reduce the number of configurations to investigate. Then, a CFD/VR tool is used to explore the restricted set of room layouts. The 3D (three-dimensional), immersive visualisation of an indoor space and of the particle motion inside it allows the user to really see the particle flows and consequently understand the effects of room parameters on particle motion throughout the room. In this way a close-to-optimal configuration of the room layout and of the ventilation system can be achieved more speedily and more conveniently compared to traditional CFD investigations. 相似文献
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针对电能质量监测数据量大、实时性强等特点,结合虚拟仪器技术,提出了基于代理(Agent)构建虚拟仪器模型,并结合合同网协议及P2P技术,通过多个Agent的合作传输,充分利用网络带宽,来保证数据的实时传送。通过实验及实际应用证明,电能质量监测方法具有一定的效果,从而验证了这些技术在虚拟仪器中的有效性。 相似文献