基于Linux的便携嵌入式设备电源管理解决方案

本文分析了嵌入式设备现有的节电技术和Linux系统的电源管理机制,并以iPAQ为例提出了一套使用以上机制来实现便携嵌入式设备的电源管理解决方案.     

一种高速嵌入式远程监控系统的研究与实现

基于嵌入式网络技术,研究并实现了一种用于嵌入式设备的监控系统.该系统采用客户端/服务器架构,通过在嵌入式设备中内建一个嵌入式Web服务器,可使得相应的嵌入式设备直接接入Internet.同时用户可使用标准的网络浏览器,通过网络对此设备进行访问、控制和管理.     

USB-HOST实时数据采集嵌入式模块的实现

USB是一种得到了广泛应用的新型总线,被数据采集和仪器设备大量采用.文章描述了一种基于嵌入式USB主机的实时数据采集嵌入式模块,该系统由嵌入式USB主机控制器采实现数据存储,使仪器可以脱离PC独立运行和将数据存储在移动USB设备中,扩大了该设备的使用范围.     

基于Rabbit2000的网络化控制系统设计

针对嵌入式系统的实时网络化控制的难度,设计了一套通过互联网对嵌入式设备实现实时在线的控制系统.该系统中,每个被控设备由单片机控制,通过RS-485总线和一个单片机系统组成一个控制系统网络,最后使单片机和Rabbit2000串口通信,实现系统的网络化控制.实践证明,嵌入式设备和网络技术的结合使设备的控制更加智能化.     

嵌入式设备的智能化电源管理系统

在分析传统嵌入式系统电源管理的基础上,主要从策略角度分析传统电源管理存在的弊端,提出智能化电源系统应具备的特点,并提出一套嵌入式设备智能化电源管理系统的完整方案。实践验证了此方案的高效性能。     

基于WinCE钢卷入库管理系统的设计

微软公司Windows CE是嵌入式移动平台的基础,为适应工业现代化的需求,基于Win-dows CE平台嵌入式开发在工业自动化中得到了广泛的应用。针对钢卷入库管理,利用嵌入式WinCE设备,开发了一套完整的钢卷入库管理系统应用程序。     

基于C/S结构的数据协议转发系统服务器的实现

根据电力企业现场总线的特点以及企业对设备运行数据进行远程采集管理的需求,实现了一种在嵌入式软硬件平台下开发的系统--数据采集协议转发管理系统.     

基于安全模组的嵌入式系统安全启动设计

围绕嵌入式设备启动过程的安全要求,本文提出了一种安全可信电路的设计,实现可信嵌入式系统.本文对该安全可信电路的设计方法进行分析,首先在嵌入式设备上电后进行交互验证,然后再利用安全模组对启动过程中的数据进行完整性度量,从而实现一种可信嵌入式系统.实验结果表明,安全模组具有安全和低时延等特点.在可信嵌入式系统中可以实现完整性度量,从而实现嵌入式设备的安全启动.     

基于嵌入式系统的远程数据访问控制

该文以智能核仪器(γ能谱仪)为研究对象,借助SMART ARM2200嵌入式设备及PC机等,对传统嵌入式设备使用工业总线控制方式孤立的数据访问及控制方法进行改进,通过TCP/IP网络技术,使嵌入式设备连网,建立嵌入式Web服务器,然后通过远程的PC机访问嵌入式的Web服务器上的数据,从而实现远程访问及控制嵌入式设备的目的。使用该方法,可初步实现智能核仪器在嵌入式系统中的远程数据访问及控制。     

Only connect: teaching, technology and telesis

Abstract This paper describes an approach to the design of interactive multimedia materials being developed in a European Community project. The developmental process is seen as a dialogue between technologists and teachers. This dialogue is often problematic because of the differences in training, experience and culture between them. Conditions needed for fruitful dialogue are described and the generic model for learning design used in the project is explained.     

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。     

Avoiding semantic and temporal gaps in developing software intensive systems

Development of software intensive systems (systems) in practice involves a series of self-contained phases for the lifecycle of a system. Semantic and temporal gaps, which occur among phases and among developer disciplines within and across phases, hinder the ongoing development of a system because of the interdependencies among phases and among disciplines. Such gaps are magnified among systems that are developed at different times by different development teams, which may limit reuse of artifacts of systems development and interoperability among the systems. This article discusses such gaps and a systems development process for avoiding them.     

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。     

Designing economic np control charts: A programmed simulation approach

This paper presents control charts models and the necessary simulation software for the location of economic values of the control parameters. The simulation program is written in FORTRAN, requires only 10K of main storage, and can run on most mini and micro computers. Two models are presented - one describes the process when it is operating at full capacity and the other when the process is operating under capacity. The models allow the product quality to deteriorate to a further level before an existing out-of-control state is detected, and they can also be used in situations where no prior knowledge exists of the out-of-control causes and the resulting proportion defectives.     

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。     

The development of robot art

Going through a few examples of robot artists who are recognized worldwide, we try to analyze the deepest meaning of what is called “robot art” and the related art field definition. We also try to highlight its well-marked borders, such as kinetic sculptures, kinetic art, cyber art, and cyberpunk. A brief excursion into the importance of the context, the message, and its semiotics is also provided, case by case, together with a few hints on the history of this discipline in the light of an artistic perspective. Therefore, the aim of this article is to try to summarize the main characteristics that might classify robot art as a unique and innovative discipline, and to track down some of the principles by which a robotic artifact can or cannot be considered an art piece in terms of social, cultural, and strictly artistic interest. This work was presented in part at the 13th International Symposium on Artificial Life and Robotics, Oita, Japan, January 31–February 2, 2008     

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.     

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.