基于WebAccess空调远程控制系统设计

设计了一套基于网际组态软件Advantech WebAccess的中央空调远程控制系统.该系统的主控制器利用DDC实现控制,通过浏览器客户端用Advantech WebAccess制作的人机界面进行远程监控.通过在线编写DDC逻辑程序可以实现对空调的远程调试修改.该设备已投入实际使用且使用效果良好.     

基于WebAccess的家电检测设备远程监控系统研究

提出一种基于组态软件WebAccess的远程监控系统。系统利用WebAccess与西门子PLC、温度模块、电参数采集等模块间的通信实现了一种基于Web技术的家电检测系统,满足通过Internet远程监控到现场设备运行状况并提供现场设备故障诊断,实现远程系统维护以及远程技术支持。     

闸站的远程监控系统

网际组态软件WebAccess是第一个完全基于浏览器的人机界面(HMI)、监控和数据采集(SCADA)软件。本文介绍通过应用网际组态软件WebAccess,实现对闸站的远程监控。     

基于OPC技术的柴油机涂装管控一体化系统

针对远程控制系统难以实现和控制效果不理想的问题,设计了一种基于Profibus现场总线和OPC的柴油机涂装远程控制系统,采用MCGS组态软件实现与底层设备的数据交换并建立OPC服务器,OPC客户端以Simatic NET为集成软件,对远程OPC服务器进行数据存取和程序控制.详细地阐述了系统结构,以及现场控制层、过程监控层、信息管理层的组态过程,并给出OPC服务器的程序设计.应用结果表明,实现了涂装控制系统与工厂管理信息系统的互连,为全厂管控一体化提供了必要的技术支持,具有很好的实用价值.     

基于WebAccess的真三轴仪电气监控系统设计

基于网际组件WebAccess的真三轴仪远程控制实验系统采用基于浏览器的SCADA软件,通过WebAccess与ADAM5000模块间的通信,实现了真三轴仪的三个轴向伺服系统、水、气和温度系统的远程监控以及相应实验的实时分析.从而表明真三轴系统的远程实时在线监控采用WebAccess软件是可行的.     

集成组态软件与虚拟界面的远程火电监控实验平台研究

监控组态软件作为控制系统的人机接口,已经成为工控领域中不可缺少的部分,其具有通用性好、易于二次开发和性能稳定等特点,而基于虚拟现实的监控界面能为用户提供逼真的现场状态,有良好的沉浸感和交互性.针对朗肯循环火电系统实验平台,运用WebAccess网际组态软件构建了基于异构网络的远程监控系统,并采用VRP软件开发了实验平台的虚拟场景,实现了该场景和组态软件的无缝连接与动态数据交互.实际运行证明,该监控系统稳定可靠,具有良好的监控效果.     

智能建筑的BA系统远程实时监控与管理

本文根据智能建筑中建筑设备自动化系统(BA)的构成及控制方式，利用网际组态软件WebAccess对我院智能建筑实验室中的BA系统实现了远程监控与管理。并着重阐述了利用网际组态软件WebAccess实现空调系统的远程监控与管理的方法。     

基于WebAccess铸件生产监控系统设计与实现

介绍了基于B／S结构的网际组态软件WebAccess的特点,并应用WebAccess构建了铸件生产过程的SCADA（监控及数据采集）系统,实现了远程监控及实时分析的网络控制系统,以较低的成本完成了对铸件生产过程的在线实时监控。系统采用研华ADAM5510KW及其相关模块为主要控制器,并在WebAccess软件提供的功能基础上,进行二次开发,使监控画面布局合理,动画效果丰富逼真,使监控更加方便,实现对现场信号的采集和对硬件设备的控制。该系统允许客户远程访问,具有投资少和使用方便的特点。     

基于MCGS的步进电机控制系统设计

设计了一种分层式的步进电机控制系统,现场控制层以AT89C52单片机为主控芯片,通过软件编程实现对步进电机的启停、正反转及调速控制,上位机监控层在工控组态软件MCGS平台下开发,操作界面直观友好,可以方便地对现场步进电机控制系统发布控制命令和参数;为解决现场控制层与监控层间数据交互问题,开发了基于MCGS的51单片机驱动构件;实际运行结果表明,整个系统实时性、稳定性良好,完全达到设计要求。     

基于PLC和MCGS的搬运机械手控制系统设计

针对传统的人工搬运工件存在的费时费力、不安全的问题,设计了基于MCGS组态软件的搬运机械手控制系统,并运用PLC进行可编程控制,将组态软件与控制器通过上位机连接,实现组态软件和PLC之间的实时通讯,上位机可实时显示搬运机械手的运行状态,通过设置上位机,可实现远程Web操作.该系统能够有效的提高工作效率,降低劳动强度,增加工作的安全性,实现机械手的无人值守与远程操作.     

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     

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.     

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。