基于嵌入式技术的脉搏信号测试系统

在基于Qt/Embedded软件界面的基础上,主要介绍编写S3C2410的A/D转换驱动和设计开发,最后在开发板上实现实时采集人体脉搏信号和显示脉搏波形。     

基于Qt的遥控式设备控制的设计与实现

采用Qt的一次编写多处编译运行机制和其强大的信号-槽机制,首先基于Qt设计了遥控式控制设备的开发框架和通信协议框架,然后通过Windows平台上的Visual C 可视化编程环境,使用Qt Designer,完成了通信协议功能和设备控制界面的软件开发.实现软件跨多平台,提高了软件的开发效率和可复用性.     

基于Qt的业务监控系统界面设计与实现

随着3TNet网络的迅猛发展,专用于实时监控3TNet网络上各项业务流的业务监控系统越来越受关注,因而对于业务监控系统的研究亦愈显其重要性。主要针对3TNet业务监控系统界面设计和实现过程中所遇到的问题,提出了一种在Linux环境下基于Qt的实现方案。分析Qt在处理图形界面设计、实现信号传递及事件响应等方面的优秀性能。结合实际开发过程,详细描述了系统界面的整体结构设计,网页浏览器嵌入至Qt界面的方法,以及Qt信号/槽机制和事件的调用。     

基于Qt的业务监控系统界面设计与实现

随着3TNet网络的迅猛发展,专用于实时监控3TNet网络上各项业务流的业务监控系统越来越受关注,因而对于业务监控系统的研究亦愈显其重要性.主要针对3TNet业务监控系统界面设计和实现过程中所遇到的问题,提出了一种在Linux环境下基于Qt的实现方案.分析Qt在处理图形界面设计、实现信号传递及事件响应等方面的优秀性能.结合实际开发过程,详细描述了系统界面的整体结构设计,网页浏览器嵌入至Qt界面的方法,以及 Qt信号/槽机制和事件的调用.     

基于Linux及Qt的嵌入式HMI软件研究

为了提高开发效率,降低软件升级成本,提出一种适用于工业监控领域嵌入式平台的HMI系统原型,原型分离了底层外设通信、业务处理逻辑及界面显示模块,将它们都分拆为独立的程序。并且设计了各层功能划分及各层次之间通信机制,同时给出组态模块的实现和代码生成方法,最终实现一个基于Linux和Qt/Embedded的通用HMI系统原型。     

采用C#和PLC软件设计与实现虚拟仿真系统

随着各种计算机软件种类越来越多,功能越来越强大,在同一台计算机搭建HMI界面、PLC程序编写及仿真的虚拟系统成为可能,本文设计实现了基于C#和三菱PLC软件的仿真系统.该仿真系统采用C#设计HMI界面,通过三菱公司的MX组件实现与三菱PLC编程软件GX Developer和仿真软件GX simulator的通讯;通过三...     

基于Qt的空耦超声探伤系统上位机软件设计

基于空气耦合超声探伤系统实现数据采集和可视化以及系统控制目的,使用C++语言和Qt开发工具设计上位机软件,通过CH340芯片转UART接口进行采集数据的读取,进而实现数据转换、存储、实时显示等功能。该软件利用C++语言面向对象特性和Qt界面开发快速的优点,提高软件开发效率及可扩展性。实际运行结果表明,软件各模块功能运行良好,采集数据接收处理准确快速,上位机长时间连续工作稳定运行,缺陷成像结果与实际缺陷一致,基本符合空气耦合超声探伤系统设计要求。     

移动机器人自主导航系统及上位机软件设计与实现

针对移动机器人自主导航系统,采用C++语言设计了一款基于Qt的跨平台实时数据可视化上位机软件;该软件执行SLAM技术和路径规划算法,实现可视化移动机器人建图与导航过程以及实时读取数据参数等功能;首先介绍移动机器人的硬件结构和功能;其次给出了自主导航所运用到的改进RRT*算法和动态窗口法;在详细叙述上位机软件工作流程的基础上,开发和设计了实时话题显示、读取以及界面可视化等功能;最后基于ROS系统完成移动机器人自主导航功能,并通过实时地图与数据可视化来验证所设计上位机软件功能的有效性。     

采用Qt／Embedded触摸屏的轴瓦检测界面设计

本文论述轴瓦检测系统平台的用户图形界面（GUI）设计。首先介绍了轴瓦检测的系统框图,然后建立了基于Linux嵌入式操作系统的软件开发平台,并对触摸屏和Qt4的开发环境的建立和文件系统制作做了重点描述,最后将串口通信和Qt4结合起来,实现轴瓦检测界面的实时显示。     

基于Qt的软件汉化界面技术的研究

随着国内用户群的增长,专业软件的汉化问题受到关注.针对此问题,探讨了基于Qt的图形用户界面软件汉化方法及问题.并通过具体的项目实践,详细论述了软件汉化使用的方法及问题.提出了应用Qt设计器对GUI界面进行说明,本地用户对软件进行汉化,运用Qt Linguistg国际化工具进行软件汉化三种方法.介绍了动态语言切换功能,实现用户界面不同语言之间的转换.对汉化过程中出现的问题,提出不同的解决方法.实践表明,使用上述方法可以解决软件的汉化问题,使软件界面实现中文化.     

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.     

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.     

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     

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.     

Three Process Perspectives: Organizations, Teams, and People

This paper provides the author's personal views and perspectives on software process improvement. Starting with his first work on technology assessment in IBM over 20 years ago, Watts Humphrey describes the process improvement work he has been directly involved in. This includes the development of the early process assessment methods, the original design of the CMM, and the introduction of the Personal Software Process (PSP)^SM and Team Software Process (TSP){^SM}. In addition to describing the original motivation for this work, the author also reviews many of the problems he and his associates encountered and why they solved them the way they did. He also comments on the outstanding issues and likely directions for future work. Finally, this work has built on the experiences and contributions of many people. Mr. Humphrey only describes work that he was personally involved in and he names many of the key contributors. However, so many people have been involved in this work that a full list of the important participants would be impractical.     

基于复小波噪声方差显著修正的SAR图像去噪

提出了一种基于复小波域统计建模与噪声方差估计显著性修正相结合的合成孔径雷达(Synthetic Aperture Radar,SAR)图像斑点噪声滤波方法。该方法首先通过对数变换将乘性噪声模型转化为加性噪声模型,然后对变换后的图像进行双树复小波变换(Dualtree Complex Wavelet Transform,DCWT),并对复数小波系数的统计分布进行建模。在此先验分布的基础上,通过运用贝叶斯估计方法从含噪系数中恢复原始系数,达到滤除噪声的目的。实验结果表明该方法在去除噪声的同时保留了图像的细节信息,取得了很好的降噪效果。     

How do children do mathematics with LOGO?

Abstract  This paper considers some results of a study designed to investigate the kinds of mathematical activity undertaken by children (aged between 8 and 11) as they learned to program in LOGO. A model of learning modes is proposed, which attempts to describe the ways in which children used and acquired understanding of the programming/mathematical concepts involved. The remainder of the paper is concerned with discussing the validity and limitations of the model, and its implications for further research and curriculum development.