Research on the Model and Technology of Resources Sharing based on Internet/Intranet

利用Internet/Intranet技术,依靠整个供应链的信息集成实现企业内和企业间的资源共享,进而实现企业生产经营活动中对已有资源最大限度的共享和重用,对于企业参与和赢得市场竞争具有重要的意义.该文针对制造业生存环境的变化和制造企业为提升竞争能力对资源共享的需求,以建立全球制造资源共享网络,实现广泛范围的资源共享为战略目标,系统地研究了基于Internet/Intranet的资源共享概念、原理、模型、技术和应用.It's a significant way of enhancing core competence for enterprises to share and reuse resources within the whole supply chain by using Internet/Intranet technologies. In this dissertation, to satisfy the demands for resources sharing and enhancing the competitive power under the condition of modern manufacturing enterprises, and to aim at establishing the global manufacturing resources sharing network and realizing a wide-ranging resources sharing, the concept, principle, model, technique and application of resources sharing based on Internet/Intranet are studied systematically. In chapter 1, the changes of modern manufacturing environment are discussed. Accordingly the new AMT (Advanced Manufacturing Technology) concepts and models are further introduced. According to the discussion, resource sharing forms the basis for AMT and enhances the enterprise competitive advantages" whose state-of-the-art and existing problems are discussed. The contents of this dissertation are then briefly outlined. In chapter 2, the concept and principle of resource sharing are introduced. According to the characteristics of the trans-regional, heterogeneous and distributed environment, the requirements for resource sharing system are analyzed, and a concentrated-distributed resources sharing schema based on CRL (Core Resources Library) and RSB (Resources Sharing Broker) is put forth. On the basis of the above theory, a framework of Internet/intranet-based resources sharing system is proposed. In chapter 3, the theory, method and architecture of Common Semantic Model (CSM) are studied so that the concepts, objects, activities and relationships among them can be described consistently, systematically and comprehensively. For the resources sharing schema discussed in chapter 2, organization model, process model, service model and data model are studied in detail. In chapter 4, the concept and architecture of resource information model is proposed in order to address the resource sharing techniques. Based on the concept and architecture, three-level representation mechanism of resource information model and structural description of resource class hierarchy are established. At last, Resource Meta-information representation Framework (RMF) based on XML is put forth in order to improve the capability of Web support. For the purpose of improving the resource utilization and the adaptability of resources sharing, the concept, principle and system architecture of model-driven Active Resource Sharing (ARS) are presented and ECA (Event, Condition and Action) rules are introduced in chapter 5. Then, the resources matching method based on multi-attribute restriction and the resources supplier selection based on the genetic algorithms are studied. In chapter 6, an application of above-mentioned theory, methods and techniques to shared parts library based on Internet/Intranet is further studies. The concept and principle are presented. Then, Information transmission interface of parts library and Web-based part information visualization are studied. At last, a prototype of parts library based on Internet/Intranet is introduced. In the end, the major conclusions of this dissertation and the outstanding research issues are summarized in chapter 7

a robust vs-mrac with a low variable structure control gain

就对象含未建模动态且其建模部分相对阶大于1时的变结构模型参考自适应控制(vs-MRAC)系统,提出了一种鲁棒低增益变结构控制方案,特点是系统变结构律在低增益状态下仍可保证所有辅助误差均在有限时间内收敛到零,从而提高了系统跟踪精度.此外,还研究了平均值滤波器对系统稳定性的影响

bi-directional convergence aco for job-shop scheduling

为了合理高效地调度资源,解决组合优化问题,在Job-Shop问题图形化定义的基础上,借鉴精英策略的思路,提出使用多种挥发方式的双向收敛蚁群算法,提高了算法的效率和可用性.最后,通过解决基准问题的实验,比较了双向收敛蚁群和蚁群算法的性能.实验结果表明,在不明显影响时间、空间复杂度的情况下,双向收敛蚁群算法可以加快收敛速度

information model of parts library and its representation based on plib

建立零件库的目的是通过有效的零部件供应渠道和整个供应链的信息集成实现企业间和企业内部零件资源共享.不同应用系统(如CAD)间的数据表达与交换成为零件库资源共享的关键和瓶颈问题.本文基于PLIB(ISO13584)标准,面向零件族,用形式化的方法和统一的数据格式表达零件库信息,建立零件库信息模型.文章首先分析了对零件库信息表达的需求,然后介绍了PLIB标准,最后描述基于PLIB标准的零件库信息模型,并且结合法兰盘零件族,介绍了基于ISO10303-21的零件族信息物理文件表达

common semantic model of shared part library

介绍了基于 Internet/ Intranet零件库资源共享公共语义模型 ,公共语义模型是对零件库信息建模和资源共享的业务方案的描述 ,是从需求向技术实现转变的媒介。进一步的工作是在公共语义模型的基础上 ,用形式化的方法和统一的数据格式表达零件库信息 ,建立零件库信息模型 ,以实现零件库资源共享

information transmission interface of part library for part family

零件库信息传输接口是零件库资源共享的关键。本文介绍了基于事物特性的零件族信息模型，分析了零件库信息构成，对面向零件族的信息传输接口进行了探讨，最后介绍了基于ＰｒｏＥ的前置处理器的实现

a paradigm of software development for mass customization

在领域工程、基于构件的软件工程和并行工程的基础上，提出了面向大规模定制的软件开发模式。该模式以大规模开发标准软件的效益满足用户的个性化需求。介绍了面向大规模定制的软件开发过程，面向大规模定制的软件产品族体系结构，以及面向大模型定制软件开发的产品集成过程模型。最后介绍了一种面向大规模定制的敏捷软件开发组织

a genetic algorithm based on common path for tsp

遗传算法是一种解决TSP问题的有效算法。文章提出了一种基于路径共同顺序的新型遗传操作方法,即首先寻找父辈的共有路径信息,然后构建后代,该方法缩小了搜索优解的范围,加快了优化过程的收敛速度。在此基础上针对TSP实例,实现了基于共同顺序的优化方法来解决小规模TSP问题,以及更有效的基于共同顺序的循环优化方法来解决大规模TSP问题。实验结果验证了该方法的有效性