基于LabVIEW的FBG温度传感器数据采集系统设计

针对光纤B ragg光栅(FBG)温度传感器实时监测过程中,对数据采集和处理的快速、准确的要求,提出了一种基于虚拟仪器技术的实时数据采集处理系统设计方案。该方案在首先考虑FBG温度传感器原理的基础上设计了数据采集处理系统,应用虚拟仪器软件LabVIEW语言编写程序,实现了对数据采集系统的控制与处理。对FBG温度传感器的实验测试表明:所设计的系统能够满足FBG传感器实时数据采集和处理的要求。     

基于虚拟仪器技术的便携式数据采集系统

虚拟仪器技术在硬件软件化的进程中应运而生的,广泛应用于工业自动化领域。本文提出了一种基于虚拟仪器技术的便携式数据采集系统。该系统运用图形化编程语言LabVIEWExpress7.1软件开发平台,结合笔记本电脑、PCMCIA-6036数据采集卡等硬件构建的一个虚拟仪器便携式数据采集系统。此系统能有效的实现实时多通道数据采集,数据流实时存盘,试验数据的分析处理,历史数据查询和波形回显,生成及打印试验报告等功能。     

基于LabVIEW和DAQ的导弹模拟检测研究

针对导弹检测系统过于昂贵而且部队训练易于损坏的特点.设计了基于虚拟仪器技术和数据采集技术的某型导弹装备自动化模拟检测系统.采用虚拟仪器思想设计出了一套适合部队训练用的模拟检测系统.该系统采用在LabVIEW环境下,利用研华的数据采集卡(DAQ)PCI 1711和数字I/O卡PCI 1753对装备面板上的器件进行实时监控,虚拟仪器面板按钮控制激励与输出显示.从而实现对信号的检测.     

综合录井数据采集与远程实时监测系统设计

针对目前综合录井现场数据解释评价能力的不足,提出了综合录井远程实时监测的解决方案.利用LabVIEW虚拟仪器技术在数据采集、实时监测软件开发方面的优越性,设计了基于LabVIEW虚拟仪器技术的综合录井实时监测系统.该系统集现场数据采集、CDMA远程数据传输、远程实时监测于一体.结果显示,该系统人机交互性友好、系统性能稳定.现场数据采集与远程数据传输能够满足综合录井远程实时监测的需求,并为远程专家决策提供有效的技术支持.     

基于LabVIEW的光栅测量系统设计

在常用的传动元件蜗杆的生产中,可以通过检测蜗杆副啮合运动时传动中心距的变化来快速检测其加工是否合格。基于虚拟仪器设计理论,以LabVIEW8．6虚拟仪器作为软件开发平台,单片机STC89C55作为下位机主控芯片,设计出适合实际需要的数据实时采集系统。该系统采用数字式传感器光栅尺和角编码器结合单片机控制实现实时数据采集。利用串行通信的方式在上位机的LabVIEW8．6上实现了光栅测量系统的数据图形显示和分析统计等功能。     

滚筒式洗衣机程序控制器质量检测仪的设计

介绍了滚筒式洗衣机程序控制器质量检测仪的虚拟仪器设计和数据采集的电路实现 ,并介绍了摩托罗拉MC6 8HC70 5C8单片机系统和实时时钟芯片ICM 7170在数据采集电路上的应用 ,精度可达 0 0 1秒。该检测仪已经研制成功 ,投入使用。     

滚筒式洗衣机程序控制器质量检测仪的设计

介绍了滚铜式洗衣机程序控制器质量检测仪的虚拟仪器设计和数据采集的电路实现,并介绍了摩托罗拉MC68HC705C8单片机系统和实时时钟芯片ICM7170在数据采集电路上的应用,精度可达0.01秒。该检测仪已经研制成功,投入使用。     

基于LabVIEW的软件无线电解调系统的设计

结合当下流行的数据采集和虚拟仪器技术,采用G语言和Lab VIEW IDE对通信系统中的解调系统进行了软件无线电设计。对本地文件中已有的已调信号以及外部通用数据采集卡采集的调幅和调频信号进行解调和分析,对调频信号的解调提出了一种软件脉冲均值标记滤波算法,该算法可以很好地实现调频波的解调。本系统还可以对实时信号波形数据进行保存、打印和对历史信号的回放。该系统彰显了数据采集技术和虚拟仪器技术在无线电领域的应用优越性。     

网络化虚拟信号发生器设计

本设计采用NI PCI-6024E数据采集卡,运用虚拟仪器及其相关技术于多通道数据采集系统的设计.该信号发生器系统具有数据同时采集、采集数据实时显示、存储与管理、报警记录等功能,最后使用Web技术实现了虚拟信号发生器的远程访问,其是虚拟仪器在测控领域的一次成功尝试,能够高效的实现各种测控任务.     

基于LabVIEW与PCI-1714的高速虚拟示波器的设计与实现

本文以研华公司生产的PCI-1714高速数据采集卡和PC机或兼容机为硬件基础,根据虚拟仪器的设计机理,采用图形化编程语言LabVIEW7实现了一种高速虚拟示波器的设计和开发.该虚拟示波器具有数据采集、实时波形显示、数据存储及输出打印等功能.实验表明,该虚拟仪器的精度和稳定性较高、反应灵敏,在测量过程可实现在线参数调整,且人机界面友好.     

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。     

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。