异地协同产品开发的研究与应用

试图将最新的Internet/Web网络技术，为异地协同产品开发提供一套有效的支撑工具和方法，如工作流管理电子白板和协同评价等。使现代制造企业能够充分利用目前的产品开发环境和网络环境进行协同产品开发，提高产品开发的效率和保证产品设计的质量。     

A Distributive and Collaborative Concurrent Product Design System through the WWW/Internet

Concurrent engineering involves the integration of people, tools, information, and processes into a responsive and efficient system. This paper addresses a key requirement in distributed concurrent engineering, namely, the ability for geographically dispersed and disparate parties, having heterogeneous computing platforms, to exchange design and manufacturing data. The development of an effective and efficient collaborative product design support environment based on the WWW/Internet is presented. A new method that reduces the transmission time through the use of macro files is proposed to realise the real-time communication, together with a monitoring methodology for synchronising group operations, and maintaining consistency of shared CAD models in a cooperative design review (co-modifying) process. Based on the proposed methods, a software interface has been developed to extend the traditional single location CAD software system to a multi-location application for coordinated product design through the Internet. This software interface was coded in Java. The architecture is a connection-oriented client/server structure using TCP/IP protocol. Unigraphics on a UNIX Workstation and MicroStation on Windows NT have been successfully integrated. The findings of this paper allow product designers to exchange and share product data, communicate with team members, modify geometry data on particular aspects of the design, and maintain operations consistency in all the distributed cooperative sites on a wide variety of platforms.     

机械系统协同仿真环境中软件集成技术研究

于Agent、Adapter技术对协同仿真环境中软件集成技术进行研究,以服务组件的形式建立分布式环境下仿真软件的集成框架,通过面向对象技术对客户端软件调用细节的封装,实现平台与仿真软件松散耦合和平台扩展性。构建了多Agent模式下的客户端组件模型,封装Agent的获取和调用细节,同时对负载平衡算法和并发控制机制进行了设计,解决了多Agent模式下的负载平衡和并发冲突问题。所提出的方案已初步应用到机械系统协同仿真环境中,并取得了较好的效果。     

分布式业务过程管理中Web服务的应用及选择

为了实现分布式业务过程管理，降低异构过程的集成费用，提出了基于Web服务与Agent的业务过程管理三层体系结构，并在此基础上给出了软件系统的实施方法。在该体系中，数据层向业务过程的定义、制定和执行提供相关信息和支持，协同应用层包含了业务过程引擎模块及负责Web服务搜索、选择及分配的多个Agent，接口层实现系统与服务提供商之间的协商管理。为了减少业务过程执行中用户系统与服务之间以及不同服务之间的交互和数据交换，提出了基于服务提供商位置的Web服务选择算法，对时间敏感性的分布式过程管理提供了良好的解决方案。     

虚拟样机多学科协同设计与仿真平台实现技术

在分析产品协同开发平台的功能框架以及主要协同模式的基础上，深入研究了虚拟样机多学科协同设计与仿真平台的分布式计算模型，及其协同运行管理、协同产品开发资源库管理、分布数据的协同交互管理与系统实现技术。基于COM／DCOM的建模与仿真工具协同、支持仿真联邦管理的数据库设计和CORBA的应用实现技术，开发了原型系统。该系统支持Internet网络环境下各种建模与仿真工具跨平台、分布交互与异构集成，可有效支持复杂产品虚拟样机的协同开发。     

Retrieval of CAD model data based on Web Services for collaborative product development in a distributed environment

Web Services, a distributed component technology based on XML and the Internet, is used for integrating heterogeneous systems under a distributed environment. Since CAD data is used as master data across the lifecycle of a product, it is important to share CAD data efficiently among the systems that are used for collaborative product development in a distributed environment. In this study, the concept of Web Services for CAD (WSC), which provides CAD data when required by organizations participating in the collaborative product development, is introduced. In addition, the technical details of WSC, including the system architecture of WSC, XML-based neutral CAD model, and interface for retrieving CAD model data are discussed. Finally, the implementation of WSC to Pro/ENGINEER and its experimental result are explained.     

Hardware and software platform for ADCWAN remote laboratory

In this paper an innovative hardware and software platform, called ADCWAN (Analog to Digital Converters on Wide Area Network), concerning the electronic measurement field is presented. In particular, ADCWAN is a pioneering networking cooperative environment regarding Analog to Digital Converter (ADC) testing. The hardware and software architectures of ADCWAN are described in detail and some ADC tests using the same test setup are presented. ADCWAN is distributed on a wide geographic area providing theoretical and practical tools to characterize ADCs. In particular, ADCWAN is a new approach to promote the harmonization of standards existing for ADCs, it establishes a collaborative work environment supporting the scientific research community to improve the harmonization level, allowing the scientific training of young researchers, the dissemination and the comparison of metrological information. In the paper the goals and benefits of ADCWAN toward research community are summarized.     

分布式虚拟设计环境中多用户协同设计研究

虚拟设计已成为制造业发展的重要方向 ,而基于网络的分布式虚拟设计为多用户共同参与虚拟设计提供了条件。考虑到分布式虚拟设计对计算机的计算能力和实时显示的要求及对网络带宽的要求 ,作者设计了分布式虚拟设计结构 ,该结构能为多用户共同参与设计提供虚拟设计环境。为了使设计人员进行有效的协同设计 ,作者应用分布式人工智能的思想为多用户协同设计提供了多用户协同设计模型以及当发生冲突时的决策模型     

协同集成设计环境的计算机辅助工具的协同用户界面研究

以一个协同集成设计环境的计算机辅助工具为背景，对协同用户界面进行探讨。按照以群体为中心的协同用户界面的设计思想，提出了一种基于Agent的协同用户界面模型，把通讯和协作支持等并行处理的概念和方法引入到现有结构化模型之中。对比传统CAD交互结构，构造了一种支持上述用户界面模型的软件Agent结构。     

企业协同交互建模系统研究

随着网络技术与网络应用的迅速发展,企业生产经营也走向了网络化。企业由“大而全”、“小而全”模式走向了企业间的合作,出现了企业间的动态联盟与虚拟企业。     

电子邮票与邮政协同式生产集成平台设计

为实现现代邮政行业的物流信息化，首次提出了面向物流信息化的电子邮票系统，对基于电子邮票的邮政协同式生产集成平台进行了设计，包括电子邮票系统总体技术框架、系统集成框架、系统运行模式和基于电子邮票的邮政协同式生产集成平台框架；就如何建立基于二维条形码技术的电子邮票物流信息化模型、基于新型密码算法的电子邮票网络销售模型、能实现自动称重计费的软件秤模型和物流配送优化调度层次模型等系统关键技术进行了分析。基于电子邮票的邮政协同式生产集成平台顺应了邮政企业信息化战略，有助于物流信息化和邮政物流全网协同式生产的实现，为其提高服务能力、参与电子商务物流配送等提供了条件和技术保障。     

基于Web的远程塑料注射成型CAE系统

随着 Internet和电子商务的迅猛发展 ,一种应用软件的新模式——应用服务提供商 (ASP) ,也逐渐凸现。本文构造了一个面向 ASP的基于 Web的远程塑料注射成型 CAE系统 ,详细介绍了系统的构造方法和关键技术     

Agent-based training simulator for leather cutting

The paper proposes an agent framework to help leather cutters undertake part placement tasks in a simulator based training environment. Footwear manufacture involves cutting components from a hide to maximise material utilisation. A training simulator allows operators to be trained without wasting leather by using digitally scanned parts and hides. Integrating agents into a training simulator allows user actions to be monitored and feedback to be provided on leather cutting practices. Issues relating to thread agent development and the delivery of information using client/server or distributed architectures are considered.     

支持概念设计的分布式协同设计环境的研究

一个复杂产品的概念设计往往需要多学科领域专家之间的协同。基于黑板模型 ,本文提出了一个分布式模块化协同设计框架结构。首先分别介绍了支持该框架结构的几个关键技术 ,即产品信息共享模型、设计问题的分布式构模方法以及基于约束的冲突检测方法。然后利用这些框架支持技术以及网络使能技术开发了一个分布式模块化协同设计环境 DCMDE,能有效地支持不同地理位置、不同学科的设计人员进行机械产品的协同概念设计。一个齿轮箱协同方案设计实例显示了系统的有效性     

协同开发环境中项目管理与工作流管理的集成

通过对分布式协同产品开发过程管理的需求分析，结合分布式项目管理系统和工作流管理技术，提出了一种适用于协同产品开发环境的层次化过程管理模式。给出了项目管理系统与工作流管理系统的集成框架，通过共享数据库的方式和对任务模型及其结构的设计研究，实现了分布式项目管理系统与工作流管理系统的信息集成和功能集成，为实现异构、自治、分布的协同产品开发环境中的过程管理提供了有力支持。     

An application of game theory in distributed collaborative decision making

Frontiers of Mechanical Engineering - In a distributed product realization environment, new paradigms and accompanying software systems are necessary to support the collaborative work of...     

MULTI AGENT COLLABORATIVE DESIGN SYSTEM MODEL BASED ON THE INTERNET AND EXPERIMENTS

0 INTRODUCTIONDstributed Artificial Intelligence(DAI ) is one ofthe imPOrtant branches of artificial intelligence. In thedomain of artificial intelligence, agent is used torepresent the object with some intelligence andautonomous decision-making function so as todistinguish it from common object.The agent isusually called" Autonomous Object" .A distributedartificial intelligence consists of many agents. Typicalstructure of an 8gent includes the partial knowledgebase, inference and dec…     

A web service-based multi-disciplinary collaborative simulation platform for complicated product development

In a ubiquitous computing environment, computer-aided engineering (CAE) software packages can be encapsulated as a service and be accessible through networks, which is essential to small and medium enterprises (SMEs) for complex product design with limited computing resources. In this paper, a web service-based platform for the multi-disciplinary collaborative simulation (MDCSS) is proposed, which is a software-sharing environment. In MDCSS, although the CAE software packages reside in their remote application program servers, they are registered in the service center to be accessible according to the computing requests. Given the increasing CAE services with the same function, a quality of service (QoS)-aware scheduling method with real-time and countable parameters is proposed to adaptively select the most efficient web service among alternatives. Through an additional layer and an application broker for service scheduling, MDCSS allows allocating services automatically, keeping load balance, and minimizing human intervention. This platform is reusable, scalable, and efficient for implementation, which enables the end user to invoke the remote CAE software ubiquitously in a “pay-as-you-use” fashion.     

多机器人遥操作系统分布式虚拟环境平台

针对多机器人遥操作系统,建立了多用户分布式虚拟环境。分析了多机器人遥操作系统组成以及分布式客户端操作的特点,构建了分层软件结构,并研究了虚拟环境场景控制、分布式网络传输、分布式虚拟环境一致性以及虚拟环境建模等问题。该分布式虚拟环境能够适应遥操作系统的应用,提高用户的工作效率和协作性。     

面向网络化制造的资源共享服务平台研究

为支持网络化制造环境下联盟企业之间的资源共享和协同工作,提出了构建面向网络化制造的资源共享服务平台的技术方案。给出了该平台的功能体系结构,详细分析了网络化制造模式下的资源获取和集成技术、共享资源的网络化和集成化管理技术、基于资源共享的异地企业协同工作技术、基于应用服务提供商模式的网络化制造服务技术,以及基于Web服务的虚拟企业应用系统集成技术等关键使能技术,并通过原型系统的开发和初步应用验证了该技术方案的可行性和实用性。