【作者】 阎朝坤；

【导师】 胡志刚；

【作者基本信息】 中南大学 ， 模式识别与智能系统， 2004， 硕士

【摘要】 网格是一种新兴的基于Internet的并行和分布式计算框架。它提供跨多个管理域的组织和企业的资源共享、信息交换、资源发现和资源整合。将计算网格理论应用到计算机协同设计中能够充分利用各种已经存在的设计资源，降低成本，提高产品质量，缩短产品交易期。 本文介绍了网格计算的分类、特点，将网格技术与当前一些网络技术的关系进行了分析。并着重论述了开放式网格服务架构，剖析了Globus工具包的系统架构。基于开放式网格服务架构，通过结合Globus、高级网络技术和中间件技术，提出了一种基于网格的现代设计框架(GMCD)，并就其体系结构、关键技术如任务分解、协同环境等的机制与策略进行了较为详细的讨论。本文对当前协同设计中出现的冲突消解策略进行了总结，并分析了各自的优缺点。在此基础上，提出了一种新的冲突消解结构，它结合了当前一些冲突消解策略的优点，使得GMCD的冲突消解具有良好的弹性，同时能更好的保证冲突的消除从而保证设计任务的按时完成。 GMCD克服了传统设计手段的封闭性，局限性和设计能力的不完备性，减少了设计资源的重复投入。设计任务的智能分解使整个设计过程对用户更加透明，同时缩短了设计周期，能有效增强了企业竞争能力和市场开拓力。更多还原

【Abstract】 Grid emerges as a new infrastructure for Internet-based parallel and distributed computing. Grid enables the sharing, exchange, discovery and aggregation of distributed resources across multiple administrative domains, organizations and enterprises. Applying the theory of Grid to CSCD (computer supported collaborative design), many kinds of existed design resources can be utilized completely, the cost of exploring of products and the trading-period can be decreased, quality of products can be improved.The paper introduces the style of grid computing, characteristics and the relation with current some network techniques. It analysis the current available developing technologies of CSCD, discusses the OGSA(open grid service architecture) and the architecture of GT3 (globus toolkit3). Based on the open grid service architecture, the paper introduces a GMCD (Grid enabling Modern Collaborative Design) framework by combining these Grid middleware, globus toolkits, modern network technologies and design middleware. The architecture and main technique such as job parser, collaborative environment of GMCD are discussed in detail. Though analyzing the conflict resolution of current collaborative design environments, a new architecture of conflict resolution is introduced. It has good flexibility and can resolute the most conflict, which ensure the finish of design tasks.GMCD overcome the closed, localization and imperfection of traditional design, avoiding the repeat investment of design resources. The intelligent task-parser make GMCD become transparent for users, decreasing the period of development. It can enhance the ability of competition and exploitation in market environment.更多还原