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基于VESA的虚拟企业构建方案的研究 总被引:8,自引:1,他引:8
虚拟企业是二十一世纪制造企业的主要模式,它面向全球范围的企业资源,通过构建虚拟企业的联盟之间重组,实现了联盟企业间的柔性化。如何迅速构建虚拟企业是敏捷制造企业要解决的首要问题。Internet的飞速发展,为企业利用互联网实现虚拟企业的构建提供了基础。文章提出了采用ISP形式的虚拟企业构建方案——虚拟企业服务代理商(Virtual Enterprise Service Agent,VESA),并探讨了VESA的应用构建框架和处理业务。 相似文献
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基于VP的网络协同虚拟实验室的研究开发 总被引:4,自引:0,他引:4
该文简述了虚拟原型、虚拟实验室、计算机支持的协同操作。研究开发了一个基于虚拟原型支持协同工作的虚拟实验室系统———基于VP的电路协同虚拟实验室。该系统用Java语言实现,运行于Internet环境,采用先进的B/S结构。在系统开发中进行了三层软件结构的设计、应用服务器的设计、应用层协议设计、网络数据库开发、虚拟实验平台、虚拟元器件库设计。 相似文献
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本文在介绍了虚拟现实(Virtual Reality)的概念和特点之后,结合人类的认知过程,对虚拟现实在教育活动中面临的问题进行了探讨。文章较深入地分析了虚拟现实技术在帮助人们获取意会知识方面的作用,最后归纳了在教育活动中虚拟现实的作用目标。文中还列举了目前较成功的虚拟现实教育应用案例, 提出了在教学实践中运用虚拟现实技术的一些建议。 相似文献
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虚拟现实技术在电力培训中的应用 总被引:3,自引:0,他引:3
虚拟现实技术的出现,使现代教育培训发生了很大变化。究其原因主要是虚拟培训有着传统培训方式无法比拟的优势。虚拟教育培训是指利用虚拟现实技术来模拟现实生活中的环境,学员在培训的过程中始终感觉自己在现场进行真实培训。虚拟现实技术利用先进的交互设备在视觉、听觉、触觉上对虚拟环境中的事物进行感知,有利于实际操作技能的提高。该文论述了虚拟现实技术在教育培训应用中的必要性和优越性。以电力培训系统的构建为例,阐述了如何利用3DSM Max和OpenGL构建虚拟培训系统,实现了虚拟现实与教育培训的有机结合。 相似文献
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Satellite network users want to unify different satellites to enhance the quality-of-service (QoS) stability of the satellite networks and select feasible paths through different networks to feed different applications. Unfortunately, the state of affairs is that different applications need to use several different application programming interfaces and to design different protocols on how and when to use a specific network. This is troublesome and error-prone as the application programming interfaces vary a lot. In this paper, we design a Virtual Strategy in satellite network based on which a QoS routing service scheme is then proposed. We analyze why applications should use and benefit from Virtual Strategy. This Virtual Strategy is a middleware solution that enables seamless usage of services from different satellite network parts. And then, the supporting QoS routing solution enables the committed QoS services over Virtual Strategy. Finally, we provide a comparison between the previous satellite networks and our work. The simulation results show that our Virtual Strategy QoS routing scheme demonstrates dominated performances under complex architecture. 相似文献
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在分布式虚拟现实的环境中数据传输的研究 总被引:2,自引:5,他引:2
分布式虚拟现实技术可以在分布式环境下满足多人实时参与虚拟环境的要求.较好地实现了信息的交互、文中从分布式虚拟现实的特征、网络模型以及数据的传输进行了分析和讨论,减少网络通讯负载一直是分布式虚拟现实致力解决的问题,本文基于分布式虚拟环境介绍了兴趣管理技术,并提出了多阈值DR技术的思想。多阈值DR技术为解决大规模分布式虚拟环境的通讯负载提供了新的思路。 相似文献
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虚拟企业的CRM在虚拟企业的运营中发挥着重要作用,它的体系结构比较特殊,包括网络通讯和企业间的协调管理。而且在实施过程中,会遇到许多问题。 相似文献
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虚拟试验验证技术发展思路研究 总被引:8,自引:4,他引:4
虚拟试验验证是贯穿军工产品全生命周期的核心技术之一,也是试验测试领域的研究重点之一;文章在总结近年来虚拟试验验证研究成果和存在问题的基础上,结合国外最新技术发展的趋势,提出了以虚拟试验验证使能技术为核心的下一步虚拟试验验证总体研究思路;在此基础上,提出了虚拟试验验证使能体系结构VITA,并对VITA中涉及到的共性技术和应用层面的关键技术进行了阐述;最后从应用与技术结合的角度提出了进一步深化虚拟试验验证技术研究的具体建议。 相似文献
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Mobile Virtual Reality provides a gateway for marketers to innovatively reach consumers. This study examines the impact of Virtual Reality in the context of transformational brand experience appeals, focussing specifically on the determining role of vividness. A three-dimensional conceptual framework is presented, offering a systematic review of the literature on vividness effects in marketing communications, revealing the major gap that most available studies only focus on informational messages. We conducted an experiment to address this gap and demonstrate in the context of a transformational ad that Virtual Reality generates higher perceptions of vividness and presence than a regular two-dimensional video, with vividness positively affecting attitude toward the ad, both directly and indirectly via presence. Our study also reveals that vividness in turn elicits a positive effect on brand attitudes which stimulates consumers’ purchase intentions. As such, the strategic potential of Virtual Reality for marketing communications is highlighted. 相似文献
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Virtual Reality - Virtual reality (VR) sickness is a condition that may occur during or after exposure to a virtual environment and can induce symptoms such as headache and eye strain. VR sickness... 相似文献
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In this article we showcase an agent-mediated B2C and B2B e-Marketplace. This e-Marketplace is part of the social and immersive 3D e-Tourism environment “Itchy Feet”. We give an overview of the framework that forms the basis of the e-Marketplace and show how it is used to create B2C-, B2B- and Virtual Organizations that are visualized in a 3D Virtual World. This interface provides users with an intuitive and easy way to interact with humans and software agents by means of a 3D Virtual World. The business logic is realized by autonomous software agents offering services to customers. The e-Marketplace is regulated by Electronic Institutions to ensure that all participants adhere to the rules of the market. The article is concluded with a detailed discussion on bridging the gaps between Multi-Agent Systems and 3D Virtual Worlds and the preliminary results of a conducted usability study of “Itchy Feet”. 相似文献
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基于Internet的虚拟现实交互技术 总被引:3,自引:0,他引:3
虚拟现实技术代表了未来计算机技术的发展方向,本文概述第二代WWW技术和其影响,着重讨论了在In-ternet上实现虚拟现实交互的一些核心技术和虚拟现实的实现语言VRML,最后给出了例子说明。 相似文献