共查询到20条相似文献，搜索用时 31 毫秒
1.
With the development of Web application,virtual reality technology based on Web is popular.In Web3D field,the old standard of VRML(Virtual Reality Modeling Language)has many problems and is not fit for the development.So the Web3D Consortium provides a next generation standard for Web3DX3D(Extensible 3D specification).X3D,using multiple file encodings describing the same abstract model including XML,has a modular architecture allowing a range of levels of adoption and support for many different market types.It also has a unified application programming model and an expanded specification structure.The technology character of X3D is mainly analyzed.Also the background,development and supporting tools of X3D are introduced.And then an example of application using X3D is given. 相似文献
2.
ZHOU Jianbo 《Journal of Landscape Research》2020,(1):114-116
"Digital City" has gradually emerged,promoting the digitalization of urban landscape design,and meanwhile,virtual reality (VR) technology allowing us to create and experience the virtual world has come into reality.The use of VR technology in the urban landscape design,and interactive 3D dynamic view,multi-source information fusion and system simulation of the entity behavior will be beneficial to generate the simulation environment of urban landscape design on the computer,and guide the scientific development of urban landscape design.On this basis,this article analyzed the connotation of VR technology and basic characteristics of urban landscape artistic design based on the overview of previous studies on the urban landscape design in multiple aspects,and further explored the application of key technology in the VR-based simulation of urban landscape artistic design,to provide the reference and idea for urban landscape design,and improve overall effect of urban landscape artistic design. 相似文献
3.
Virtual studio system (VSS), a new technology based on virtual reality, develops fast in recent years. Virtual studio concept replaces real background sets with computer generated 3D synthetic and combines real foreground action, with computer generated backgrounds. As VSS need not construct real background sets and has little limitness of time and space, it is regarded as a revolution in TV programs. This paper mainly discusses about the background, technology feature, application and future. 相似文献
4.
CAI Jing zhi 《保鲜与加工》2003,(4):93-95
With the development and application of information and internet and virtual instrument technology ,the virtual globular company based on internet arises .To study remote state monitoring, remote fault detection and diagnosis about large scale, complicated and integrative equipment become very important. In the whole fault diagnosis system , the detecting ,data acquisition is original ,processing; transform and extracting features with the signal detected is a key factor. The theories and methods used in mechanical fault diagnosis is stated. The application of signal process and its feature extracting methods is introduced which are time domain, frequency domain and time frequency domain analysis, in state monitoring and fault diagnosis with its signal analysis. The processing method of random time variant special signal is given also. 相似文献
5.
基于VRML的虚拟园林设计要素构建 总被引：2，自引：1，他引：1
虚拟现实技术应用于园林设计,可利用动态和交互方式对未来的园林进行身临其境的全方位审视,可达到传统的园林效果图所无法达到的效果,然而目前虚拟技术在园林中的应用比较少。笔者基于VRML技术对园林设计要素的（植物、建筑、地形和水体）构建进行探索,实现了园林设计四大要素的三维模型构建和互联网上的漫游与交互功能。研究表明基于VRML构建园林设计要素的方法是行之有效的,而且效果比较好。 相似文献
6.
Along with the rapid increase in information of internet,the information research technology was confronted with more and more challenge.Traditional WEB search engine is not satisfied with users' special demand any more,therefore there comes forth a trend to join intelligent technique with Web search engine.This paper puts forward a Multi-agent based architecture for WEB search engine based on traditional architecture.An effective securities business search engine,which is can satisfy user's especial request which is created by means of intelligent technique.If the system is used in many other special fields,good results of information research can also be acquired. 相似文献
7.
基于WEB和RS-485总线的分布式远程环境监控系统的实现 总被引：5，自引：1，他引：4
提出了一种针对温室环境监测的基于WEB的数据采集和信息发布系统设计方案,并从软、硬件的角度详细介绍了系统的实现方法。该系统应用MS VB.NET开发工具,采用ASP.NET 技术规范,构建了B/S（Browser/Server）模式下的远程监控系统。硬件系统通过RS-485总线与数字传感器连接,并与具有联网功能的PC监控计算机构成温室现场监控系统。该系统不仅能够通过Internet远程浏览访问温室现场数据,而且能对系统运行参数进行远程修改和设置。该系统不仅可以实现对温室环境的异地和远距离数据监控管理,而且也可应用于农业的其它领域。 相似文献
8.
As a new technology towards 21st century, the occurs of the virtual reality technology is a result of computer graphic, human machine interface technology, sensor technology and artificial intelligence. The real time self photographing technology based on the virtual environment is a typical application of this virtual reality technique. A series of things has been discussed and studied ,such as visual reality,video intercept and so on,and the real time self photographing system based on the technology of blue background image extracting. A new arithmetic is emphasized which is produced during study and exploitation.It is image fusion technique based on the contrast appreciate characteristic. 相似文献
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10.
LIN Cheng - yang 《保鲜与加工》2006,(6):34-37
This research explores the enlightenment on the design conceptualization and visualization in digital architecture.This study uses 3D models as the main source of data,taking the process of design development as its object.A rapid prototyping(RP) technology is used for 3D color output of design models.The substantiated digital models are used as an important media in design interaction.It is found from the study that RP models were an important media in connecting the virtual world and the real world.Designers could verify their intentions and thus increase efficiency by switching between both worlds.The surface attributes of components and the characteristics of architectural spaces could be merges with images,as a way to extend the freedom in the declaration of a surface's appearance.The large amount of design information can be simplified by explicit visualizing design data. 相似文献
11.
The virtual environment is the important and indispensable part of virtual reality The method of modeling virtual environment is studied and discussed, based on the research of the basic theory and key technology of virtual reality. Taking the indoor virtual environment modeling as an example, the whole design object, design idea, design rules and the key technologies of indoor virtual environment modeling is dissertate systematically. The modeling objects are reusable and interactive owing to the adaptation of object-oriented and agent-oriented techonlogy. The actual scene is classified according to structure and layer so as to the scene was managed effectively and displayed more quickly. So the system had the properties of immersion, interaction and imagination at some extent. 相似文献
12.
The article analyzes two approaches of product visualization,and brings forward a common approach of product data to achieve Web visualization based on IGES standard. It transforms CAD data to universal and useful 3D data, it don't need special browser, and it is very simple and useful. A technological process is introduced to transform Web formats from IGES data. The article also describes concretely triangle anatomy of entity, and the minutia arithmetic of curve face. The principle that triangle piece realize to transform to VRML format is described. With the verification in the prototype system, this approach is proved with reason and credibility. 相似文献
13.
WEB(Web based Network Management) is new trend of Network Management.Features of WBM and related international standards are described.AI environment integrates with WBM is the next trend of network management too.Integrated and intelligent WBM system will be developed in the futare. 相似文献
14.
The errors of each parts of virtual instrument system, which are produced in the signals transfer process, are introduced. These errors include sensor error, signal conditioning error, data acquisition error and data dealing error, etc. The main error can be found by analyzing the influence of these errors on different virtual instrument system. The methods of errors modification are also discussed. It's an effective method that modifying system errors, especially nonlinear errors, by software. At last, as a good example, the error analysis and modification of Virtual Noise Analysis Instrument is given. 相似文献
15.
According to the urgent need for motorcycle parts enterprise to improve the ability of information exchange and business collaboration between the production process and other links such as the marketing, design, production planning, outsourcing, purchasing and delivering, an integration framework of the intergraded workshop production management system for motorcycle parts enterprise is presented. It can be integrated with the designing and production planning management systems upwards, the workshop equipments and workers downwards, and the subcontract production and supply chain management systems outwards. Then, some key technologies are studied, such as the realization scheme of system integration based on Service Oriented Architecture (SOA), the data integration and sharing mechanism of heterogeneous information system based on eXtensible Markup Language (XML), and the real-time interaction technology of workshop information based on the multi-functional interactive information terminals, etc. Finally, the system is developed and successfully applied in a motorcycle parts enterprise, and good results are obtained. 相似文献
16.
基于Internet的多年生和无性繁殖作物种质资源数据管理系统的设计与实现 总被引：1，自引：0，他引：1
果树、茶树、桑树、薯类、无性繁殖蔬菜、苎麻、甘蔗、橡胶等多年生和无性繁殖作物是我国农业生产的重要组成部分。为加快我国多年生和无性繁殖作物种质资源的收集、整理、鉴定评价和创新利用,加强种质资源规范化管理,促进资源信息交流,提高资源数据库管理水平,笔者采用动态web数据库的策略,执行浏览器／服务器（B/S）体系结构,建立了基于Internet的多年生和无性繁殖作物种质资源源数据管理系统,对多单位、多作物进行统一、规范的管理, 实现种质资源数据库的共建、信息共享。 相似文献
17.
基于WebGIS的县域农业资源信息共享系统研究 总被引：6，自引：2，他引：4
数字农业(Digital Agriculture)技术的实施和完善离不开各种农业资源数据的强有力支持。笔者针对重庆江津市农业资源信息“信息孤岛”的现状,在统一网络平台的支持下,集成3S技术、Web技术和空间数据库技术,以农业资源数据库为基础,采用“元数据集中,实体数据集中”和“元数据集中,实体数据分散”相结合的模式,建立了一个集数据管理、数据的查询和检索以及数据发布等功能为一体的农业资源共享系统。应用结果表明,系统可以最大限度地利用现有农业资源数据,为农业部门的生产决策提供依据;能有效减少农业资源信息采集、加工整理过程中人力、物力和财力的投入,促进农业信息化、规范化发展。同时,系统为农业资源管理和共享提出的思路也适用于其他的行业应用,具有一定的推广意义。 相似文献
18.
Yangla copper mine is going to build a new tailings pond for its tailings disposal. The tailings dam is 185.0 m high and centerline method is used to construct the tailings pond. For the stability of the tailings dam, 2D FLOW program is used for the numerical simulation study about the dam seepage. During simulation calculation, different conditions which include a drainage system installed into the dam or not and different beach widths, i.e. 70 (the flood condition), 100, 300 m (the normal condition), are considered. Through calculation, the change of the seepage under different conditions is obtained, which shows if the drainage system is installed into the tailings dam, the underground water can be successfully drained out. This can keep the phreatic surface level relatively low, so as to improve the stability of the dam. 相似文献
19.
《Journal of Landscape Research》2017,(1)
Via field survey and analysis,the problems that authenticity of Yuanmingyuan site protection is nibbled by modern garden engineering,and Yuanmingyuan site display has low identification degree,insufficient historical information and improper construction site piece display are elaborated. Meanwhile,it is proposed locating Yuanmingyuan site protection and display into the residual landscape after burnt and looted in 1860. Virtual reality technology is used for full-landscape coverage,to realize the comparison between history and status quo,and the dissemination of Yuanmingyuan information is expanded by"internet+"model,which aims to impel the public joining in heritage awareness and cultural relic preservation. 相似文献
20.
The conception of virtual logistics and virtual logistics enterprise are introduced,and the importance of information technology in virtual logistics organization is indicated.Then the four layer structure of the support system of virtual logistics enterprise is propaed,which are information collection technical,information share technical,information disposal technical and the theory and methods of information management.The five-layer construction of information system of virtual logistics enterprises is built.This paper can be of instructive significance to the building of the virtual logistics enterprise's information platform. 相似文献