智能楼宇能耗监控系统的设计与实现

采用WSN( Wireless Sensor Networks)技术和OPC( OLE for Process Control)技术,设计一套智能楼宇无线分布式能耗监控系统.系统分为能耗信息采集和能耗信息监控模块.信息采集模块采用WSN技术对监控数据进行采集上传;能耗监控模块在对OPC规范进行分析的基础上完成OPC能耗数据访问服务器和OPC能耗数据监测系统的设计与实现.系统经过几个月的实际应用,性能良好,运行正常.     

基于ZigBee的无线抄表监控系统设计研究

该文通过对ZigBee网络技术的介绍,阐述了ZigBee网络的拓扑结构和协议栈,利用ZigBee技术实现了无线抄表监控系统的总体设计,并对无线抄表监控系统中的采集终端、集中器和服务器三部分做了深入的研究。     

城市道路交通智能照明系统设计

为了实现对城市道路照明的智能化管理,运用物联网技术[1]、电力线载波及无线通信技术,构建由服务器、集中器和控制器组成三级网络架构的城市照明智能监控系统。实现控制器、集中器、服务器和监控终端之间的互联,并通过DTU与互联网连接,每一个控制器终端通过独有的ID接入到因特网。系统利用安装在监控中心服务器中的监控软件和数据库、GIS等,实现了对城市照明系统智能化控制和科学管理,是物联网技术在节能减排、创建新型智慧型城市方面的应用场景之一。     

基于B/S模式的Rockwell实验室网络监控系统

应用OPC通信技术和Web开发技术,设计并开发了基于B/S模式的Rockwell实验室网络监控系统。OPC的应用多是基于C/S模式的,这导致在传统B/S模式网络监控系统下,数据通信过程要通过OPC服务器、OPC客户端和实时/历史数据库多层通信,存在一定的实时性问题。针对这一问题,提出了新的开发框架,实现了与控制对象的实时通信。用户通过浏览器可以实时监视设备的运行状况,并且可脱离Rockwell的编程软件对设备进行控制。     

基于iOS的智能家居安防系统移动端设计

基于iOS平台的设计与开发技术,在异构网络中实现一种智能家居报警系统,用以解决智能家居中的安防问题。在该安防系统中,信息采集端由ZigBee无线传感器节点（监控节点）以自组织方式构成,可采集监控区域的实时信息并将报警信息传递给服务器。基于iOS技术开发的移动客户端可帮助用户采取相应的报警处理和操作措施。     

基于物联网的高校教室照明节能方案研究

将物联网技术应用于传统照明,设计一种高校教室智能照明系统。该系统包含监控层、网络层和设备层,可实现探测照明状况、分发信息、控制灯具,并且运行于服务器的监控软件远程监控照明状况的功能。通过物联网技术实现自动控制教室照明灯,解决了高校教室长明灯现象,从而达到节能的目的。     

基于物联网的电信运营商机房能耗监控系统

基于物联网技术设计了电信运营商机房的能耗监控管理系统。通过对子节点电信机房主设备及空调用电、机房温度等数据进行采集与分析,采用TCP/IP协议完成了远程数据服务器的采集,实现了对主设备及空调情况的远程监控;在此基础上,设计了能耗分析与管理系统,实现了用电设备不合理报警,并基于能效最大化空调控制算法实现了对远程机房空调用电的有效控制。系统实际运行表明,该系统运行稳定,能有效地降低运营商机房的能耗,机房平均月节能达到10%到20%,对于机房能耗管理有很大的意义。     

基于设备服务器的电视发射机远程监控系统

给出了一种基于设备服务器的电视发射机远程监控系统的体系结构和软件组成,讨论了CGI原理及CGI开发技术并开发了电视发射机远程监控系统的CGI及串行通信组件,分析了基于XML技术设计客户端的优点,提出并实现了利用CGI和XML技术实现远程监控计算机与嵌入式Web服务器进行动态交互的具体方法,解决了系统中设备服务器资源受限问题,实现了对电视发射机的运行状态进行远程监测和控制,为远程监控系统的设计与实现提供了一种新的解决方案。     

基于Web的污水处理远程监控系统设计

详细阐述了针对一个中型污水处理过程中产生的温度、流量、压力、浓度等多个I/O数据进行实时采集与远程监控系统的设计与实现。监控系统整体基于分布式结构并采用B/S架构实现,在介绍污水处理系统整体结构的基础上,重点分析了中心服务器与现场PLC控制层的通信模式,阐述了Web监控层的画面设计过程以及功能实现,远程客户端可以通过浏览器实时观测到现场的状况。     

ASP.NET2.0技术的三层构架模型开发视频点播系统

ASP.NET2.0是微软推出的用于构建动态、交互式Web的开发技术。本视频点播系统基于ASP.NET2.0的技术维护视频信息内容,以SQL Server2000作为数据库服务器,HelixServer为流媒体服务器,Realplayer为播放工具,选用Microsoft Visual Studio.NET2005与Dreamweaver 8.0为开发工具设计实现一个用三层架构模型来动态管理视频信息的视频点播系统。本文重点论述以表示层、业务层、数据层的架构模型来实现动态管理视频信息。     

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.