基于CS8900A以太网驱动程序的设计

设备驱动是Linux系统的重要组成部分,它在硬件和终端之间建立了标准的接口.本文首先介绍了嵌入式系统的概念以及嵌入式Linux,并建立基于嵌入式ARM-Linux平台.籍此平台,并通过嵌入式Linux的基础、嵌入式Linux的网络结构和网络驱动程序的实现方法的研究,最后成功的实现了基于ARM9的嵌入式Linux下以太网驱动程序的开发.     

基于QT4.7的ARM嵌入式Linux的游戏程序开发实现

在嵌入式系统中,ARM处理器与嵌入式Linux操作系统结合得愈加紧密,并广泛应用于社会的各行各业。同时,面对人机交互效率的需求不断提高,越来越多的嵌入式设备开始采用较为复杂的GUI系统,在此过程中QT得到了广泛的应用。本文通过介绍五子棋游戏开发,可以使读者了解基于QT4.7的ARM嵌入式Linux的应用程序开发实现过程。     

基于CAN总线和MiniGUI的虚拟仪表设计

基于ARM+Linux的架构,通过CAN总线获得数据,再利用嵌入式系统平台的构建思想,实现了在嵌入式Linux操作系统下,基于ARM和MiniGUI环境的车载信息的图形化显示。介绍了虚拟仪表系统的体系结构、数据采集节点的构成及Linux环境下CAN总线驱动程序的实现。     

基于PXA255的ARM Linux操作系统移植

Linux在嵌入式领域中应用越来越广泛,已成为最有潜力的嵌入式操作系统。操作系统的移植是进行嵌入式应用开发的前提和基础。ARM Linux是一种针对ARM体系结构的Linux操作系统。本文以新一代高端嵌入式处理器PXA255为例,进行ARM Linux的移植,阐述了移植中需要解决的关键技术,包括:内核的定制、文件系统的创建、设备驱动的移植等。最后,在移植成功的平台上实现了无线接入点。     

基于ARM LINUX的嵌入式GUI的设计与开发

GUI设计在嵌入式系统设计中占据着举足轻重的地位,MiniGUI为一种适合于嵌入式系统的、功能强大的GUI,本文介绍了基于ARM和Linux的MiniGUI移植方法以及在ARM开发板上实现普通手机操作界面的设计过程,并提出了相应功能的实现方法,给出了设计的效果。     

基于ARM的Linux网络设备驱动程序开发

对基于ARM的网络设备驱动程序开发进行了研究,分析了嵌入式Linux网络设备驱动程序的实现原理和运行过程,讲述了嵌入式系统中网络设备驱动开发的具体过程.在嵌入式Linux中实现DM9000网卡驱动,并结合实现DM9000网卡驱动的实例讲解了基于Linux操作系统的网卡驱动程序开发流程.具体分析了网络设备的初始化、设备的打开与关闭、数据的传送和接收以及超时处理等相关过程.最后归纳总结了基于嵌入式Linux网络设备驱动程序的一般方法.     

SQLiteODBC接口在ARM—Linux平台的实现

文章主要讨论了在嵌入式Linux系统下用ODBC接口访问嵌入式数据库SQLite的实现方法。论述了开放源代码的SQLite数据库、unixODBC驱动管理程序和sqliteodbc驱动程序在ARM—Linux平台的移植,并给出了SQLiteODBC接口的测试程序。     

Java Web应用在ARM Linux平台上的实现

首先完成了java虚拟机jamvm,java web容器winstone和嵌入式数据库sqlite以及jdbc驱动程序Sqlitejdbc在ARM Linux平台上移植配置,并在移植配置好的平台上成功运行jsp、servlet程序和做了访问sqlite数据库的测试。完整地实现了在嵌入式ARM Linux平台上支持java,jsp,servlet和数据库等java web应用。     

基于ARM9的嵌入式网络接口设计

介绍了一种基于嵌入式系统的网络通讯的设计方案。在嵌入式ARM9嵌入式网络通讯设计中,介绍了ARM9200T等硬件和Linux操作系统,通过网络接口与服务器进行连接,并通过TCP/UDP协议进行通讯。     

基于ARM＋Linux的高速数据采集系统

文章结合某化工厂的实际需求,设计出了结合Linux的嵌入式微处理器ARM高速数据采集系统,并着重阐述了在ARM和Linux操作系统上,选用ARM920T架构的S3C2410处理器,结合128MBSDRAM和256MBFLASH进行的系统设计,详细讨论了目标系统实现的关键设计。     

European Community policy and the market

Abstract This paper starts with some reflections on the policy considerations and priorities which are shaping European Commission (EC) research programmes. Then it attempts to position the current projects which seek to capitalise on information and communications technologies for learning in relation to these priorities and the apparent realities of the marketplace. It concludes that while there are grounds to be optimistic about the contribution EC programmes can make to the efficiency and standard of education and training, they are still too technology driven.     

一种自适应子融合集成多分类器方法

融合集成方法已经广泛应用在模式识别领域,然而一些基分类器实时性能稳定性较差,导致多分类器融合性能差,针对上述问题本文提出了一种新的基于多分类器的子融合集成分类器系统。该方法考虑在度量层融合层次之上通过对各类基多分类器进行动态选择,票数最多的类别作为融合系统中对特征向量识别的类别,构成一种新的自适应子融合集成分类器方法。实验表明,该方法比传统的分类器以及分类融合方法识别准确率明显更高,具有更好的鲁棒性。     

煤矿井下安全监控分站的设计及其仿真实现

为了设计一种具有低成本、低功耗、易操作、功能强且可靠性高的煤矿井下安全分站,针对煤矿安全生产实际,文章提出了采用MCS-51系列单片机为核心、具有CAN总线通信接口的煤矿井下安全监控分站的设计方案;首先给出煤矿井下安全监控分站的整体构架设计,然后着重阐述模拟量输入信号处理系统的设计过程,最后说明单片机最小系统及其键盘、显示、报警、通信等各个组成部分的设计;为验证设计方案的可行性与有效性,使用Proteus软件对设计内容进行仿真验证,设计的煤矿井下安全监控分站具有瓦斯、温度等模拟量参数超标报警功能和电机开停、风门开闭等开关量指示功能;仿真结果表明:设计的煤矿井下安全监控分站具有一定的实际应用价值.     

基于QTE的蒙古文显示机制研究与实现

蒙古语言是中国蒙古族使用的通用语言,由于蒙古文区别于其他文字的书写方式和其自身变形机制等特点,在很多通用的文字处理引擎中都不被支持。在嵌入式产品开发与应用领域中Linux加QTE已经成为流行方式。该文给出了一种在QTE环境上实现基于标准Unicode的蒙古文点阵显示和变形算法, 并自定义了支持蒙古文的QTE组件,扩展了QTE功能,为在Linux加QTE方式的嵌入式体系结构中处理蒙古文提供了一种解决方法。     

基于AD9626的模拟信号采集存储卡设计

自然界的绝大部分信号都是以模拟的形式存在,因此模拟信号的采集转换存储在数字时代十分关键。文章讨论了在雷达信号处理领域基于AD9626的AD采集存储卡的设计原理、硬件结构和程序设计与芯片配置等问题,为今后相关领域的研究提供了可参考的方案。     

A human-computer interface for non-computer specialists

The COM teleconferencing system was designed to be easy to use for both beginners and people with much computer experience. A number of design choices in organizing the human-computer interface were considered very carefully. These design problems are not unique for teleconferencing applications, but will appear in many other developments of human-computer interfaces for non-computer specialists. This report discusses naming conventions, menu format, user commands, help facility and the treatment of ‘type ahead’ from the users.     

Explanation and prediction: an architecture for default and abductive reasoning

Although there are many arguments that logic is an appropriate tool for artificial intelligence, there has been a perceived problem with the monotonicity of classical logic. This paper elaborates on the idea that reasoning should be viewed as theory formation where logic tells us the consequences of our assumptions. The two activities of predicting what is expected to be true and explaining observations are considered in a simple theory formation framework. Properties of each activity are discussed, along with a number of proposals as to what should be predicted or accepted as reasonable explanations. An architecture is proposed to combine explanation and prediction into one coherent framework. Algorithms used to implement the system as well as examples from a running implementation are given.     

View-based model-driven architecture for enhancing maintainability of data access services

In modern service-oriented architectures, database access is done by a special type of services, the so-called data access services (DAS). Though, particularly in data-intensive applications, using and developing DAS are very common today, the link between the DAS and their implementation, e.g. a layer of data access objects (DAOs) encapsulating the database queries, still is not sufficiently elaborated, yet. As a result, as the number of DAS grows, finding the desired DAS for reuse and/or associated documentation can become an impossible task. In this paper we focus on bridging this gap between the DAS and their implementation by presenting a view-based, model-driven data access architecture (VMDA) managing models of the DAS, DAOs and database queries in a queryable manner. Our models support tailored views of different stakeholders and are scalable with all types of DAS implementations. In this paper we show that our view-based and model driven architecture approach can enhance software development productivity and maintainability by improving DAS documentation. Moreover, our VMDA opens a wide range of applications such as evaluating DAS usage for DAS performance optimization. Furthermore, we provide tool support and illustrate the applicability of our VMDA in a large-scale case study. Finally, we quantitatively prove that our approach performs with acceptable response times.     

Call for papers Special issue on Modeling and control technologies for civil,energy,and power systems

正The control of civil,energy,and power systems presents significant new challenges for modeling and control theory.The purpose of this special issue is to provide a forum for researchers and practical engineers to discuss the recent advances in modeling and control technology development for civil,energy,and power systems.Prospective authors are invited to submit their original contributions with the focus on theory or applications of modeling,control     

Information for Authors

正http://www.zju.edu.cn/jzus http://www.springerlink.com Aim The Journals of Zhejiang University-SCIENCE(A/B/C)are edited by the international board of distinguished Chinese and foreign scientists,and are aimed to present the latest developments and achievements in scientific research in China and overseas to the world’s scientific circles,especially to stimulate and promote academic exchange between Chinese and foreign scientists everywhere.