基于Web服务的智能交通系统集成

阐述了基于美国国家ITS通信协议（NTCIP）和体系结构构建Web服务的思想，将Web服务纳入到NTCIP框架，建立了基于Web服务的智能交通系统集成体系，并讨论了3方面的应用，即实现一个系统对另一个系统硬件没备的控制、交通管理经营业务集成、个性化信息与服务定制。     

Knowledge intensive Petri net framework for concurrent intelligent design of automatic assembly systems

The integration of design and planning of flexible assembly system has been recognized as a tool for achieving efficient assembly in a production environment that demands assembly with a high degree of flexibility. This paper proposes a concurrent intelligent approach and framework for the design of robotic flexible assembly systems. The principle of the proposed approach is based on the knowledge Petri net formalisms, incorporating Petri nets with more general problem-solving strategies in AI using knowledge-based system techniques. The complex assembly systems are modeled and analyzed by adopting a formal representation of the system dynamic behaviors through knowledge Petri net modeling from the specifications and the analysis of those models. A template is first defined for a knowledge Petri net model, and then the models for assembly system individuals are established in the form of instances of the template. The design of assembly systems is implemented through a knowledge Petri net-based function–behavior–structure model. The research results show that the proposed knowledge Petri net approach is applicable for design, simulation, analysis and evaluation, and even layout optimization of the flexible assembly system in an integrated intelligent environment. The integration of assembly design and planning process can help reduce the development time of assembly systems.     

The advanced information technology innovation roadmap

The AIT (Advanced Information Technology for the European Manufacturing Industry) initiative is focusing on IT innovations and their integration in the users enterprise. This is achieved through the deployment of the AIT Innovation Cycle starting with the AIT strategic planning (development of a common master plan) and finishing with the business integration of complete IT innovative solutions. The IT integration includes two major action streams supported by various R&D projects belonging to the ESPRIT and Brite Euram research programmes, which are: The technological integration which is achieved in strong cooperation with IT vendors through the development of integration platforms based on emerging standards such as STEP, CORBA, JAVA, etc. In this integration context, the CIMOSA framework has been used to build the AIT IT Reference Model (ITRM). The IT innovations integration into the users' enterprise which consider the usage of all the CIMOSA views (function view, information view, organisation view, resources view including Human, Financial and IT resources) as well as their aggregation in order to support the development of generic networked enterprise (re)engineering methodologies, processes and associated IT supporting tools. This paper is focusing on the second integration stream by describing the progress achieved to date in the AIT-IMPLANT project. The aim of this ESPRIT project is to develop a generic enterprise change management methodology and associated IT tools to support the integration of IT Innovations into the networked manufacturing enterprises.     

Developing Real Applications With Agent Technologies

In this paper, we present an agent library to develop multi-agent applications. Such an agent library has been realised taking into account FIPA specifications. FIPA specifications give the minimum amount of technology deemed necessary for the management of agents in an open agent system, including agent roles, an agent communication language, an agent management content language, and a standard way to interact with non-agentised software.Therefore, the library offers the prototypes of the agents necessary for the management of a FIPA agent open system and an agent prototype that the user can specialise to build the other agents necessary for her/his application. The library has been implemented both in C++ and Java. The two implementations support a logical distribution, i.e., the agents correspond to different threads, and a physical distribution, i. e., agents of the same applications run on different machines. The Java library has been used to develop a multi-agent system, that facilitates users to use a video on demand service, and a first prototype of the system is under experimentation. The C++ library is used for the development of a multi-agent system that should integrate the different software modules performing sensory data interpretation, planning, faults diagnosis, . . . of a robot working in a space station.     

The Context of Information Use in a Hospital as Simultaneous Similarity–Difference Relations

In the light of the developing discourse on the relative merits of ‘hard’ and ‘soft’ approaches to information systems development, we present a case study application of a methodology which attempts to dissolve such dualities. Personal Construct Psychology (PCP) offers, as a unity, the construing person who is both biology and culture. PCP argues that both the world and the person’s construct system are phenomenologically real and that the viability of any particular construct system depends only on its usefulness to the construing person. In this study, we used PCP to explore the organisational context of information use and distribution in a large hospital. We used repertory grids, a PCP technique, to elicit from 16 members of staff their personal construals of information from different sources in the hospital. The results highlight the relationship between meaningful information and meaningfully active relationships, a theme which we discuss in terms of the development of the hospital information system and in terms of the value of PCP in dissolving hard–soft dichotomies.     

多源空间数据集成的技术难点分析和解决策略

目前多源空间数据集成的模式有数据格式转换、数据互操作和直接数据访问。在分析了这几种模式的原理及不足之后,着重讨论了多源空间数据无缝集成(SIMS)模式,通用空间数据引擎(USDE)模式和数据中间件(Middleware)模式在多源空间数据集成中的应用。     

基于XML的异构系统集成框架的研究

通过分析传统异构网络环境下分布式对象互操作中存在的问题,提出了改进的基于XML的异构系统集成框架。该集成框架通过对不同类型的服务组件采用不同的调用机制,能够将不同服务组件集成到一个统一的平台中,而无需改变底层应用系统,克服了目前分布式体系结构与服务具体位置相关、紧密耦合等方面的局限性。     

基于导航卫星信号的采集系统设计与实现

针对导航卫星信号监测的新要求,提出一种集成了数据采集、处理、存储和回放功能的一体化卫星信号采集系统。该系统采用PCIe架构,系统带宽可达到全双工900MB;数据采集480MB持续数据,以及480MB突发数据;数据处理采用FPGA＋DSP联合架构,完成对数据实时处理;存储采用全固态结构,用Flash代替传统的磁盘存储;并且能够通过PCIe接口完成960MB带宽的数据回放。该系统具有性能高、集成度高的优点,可以运用在雷达、侦查等高端领域。     

基于Web的分散异构模具标准件库集成应用平台

基于Web技术,对分散异构模具标准件库集成应用平台进行了研究。提出了集成应用平台的总体设计方案和功能模型,提出了解决分散异构模具标准件库集成问题的技术路线与方案。论述了实现平台的关键技术。     

基于JMS和XML的数据集成研究*

JMS(Java Message Service)是SUN公司提出的Java消息服务规范,适用于面向消息的分布式计算系统。XML是具有自描述性等特点的数据表示和交换的标准。在对XML和JMS进行简要分析的基础上,结合两者的优势提出了一个数据集成模型。