基于Web Server的消防水泵远程监控系统

本文以消防设施中的消防水泵为研究对象,设计了一种消防水泵远程监控与管理系统,此系统采用了计算机网络,Webserver、CGI、SQLite数据库等技术,具有对消防水泵运行参数进行实时监测、处理、传输、Web显示、存储等功能。通过系统测试表明,该系统能够满足远程监控与管理的要求。     

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。     

用C语言进行CGI程序设计

一、CGI 概述 CGI（公用网关接口）规定了Web服务器调用其他可执行程序（CGI程序）的接口协议 标准。Web服务器通过调用CGI程序实现和 Web 浏览器的交互,也就是CGI程序接受 Web浏览器发送给Web服务器的信息、进 行处理,将响应结果再回送给Web服务器及 Web 浏览器。CGI程序一般完成Web网页 中表单（From)数据的处理、数据库查询和实现与传统应用系统的集成等工作。CGI程序 可以用任何程序设计语言编写,如Shell脚本 语言、Perl、Fortran、Pascal、C语言等。但 是用C语言编写的CGI程序具有执行速度快、安全性高（因为C语言…     

如何在Web网页上实现交互访问

一般来说，WWW网上的大多数信息是非交互的，也就是说用户完全是被动的。但有一种方法可以使用户和网点（Web站）之间实现交互访问，那就是CGI（CommonGatewayInterface）。CGI是Web服务器和外部应用程序之间的一个接口标准，利用编程CGI程序，Web制作者可以使服务器和用户具有部分交互功能。CGI程序可以用任何一种计算机语言编写，如Csh，Perl，C（C＋＋），VB等。CGI程序和HTTP服务器（即Web服务器）和HTTP客户的关系如下：②表示服务器启动CGI程序并把请求传给CGI程序。③表示CGI程序把处理结果返回给HTTP服务器。…     

用C语言进行CGI程序设计

一、CGI概述 CGI(公用网关接口)规定了Web服务器调用其他可执行程序(CGI程序)的接口协议标准。Web服务器通过调用CGI程序实现和Web浏览器的交互,也就是CGI程序接受Web浏览器发送给Web服务器的信息,进行处理,将响应结果再回送给Web服务器及Web浏览器。CGI程序一般完成Web网页中表单(Form)数据的处理、数据库查询和实现与传统应用系统的集成等工作。CGI程序可以用任何程序设计语言编写,如Shell脚本语言、Perl、Fortran、Pascal、C语言等。但是用C语言编写的CGI程序具有执行速度快、安全性高(因为C语言程序是编译执行且不可被修改)等特点。 CGI接口标准包括标准输入、环境变量、标准输出三部分。     

黑客与CGI程序的安全性

CGI(COMMOM GATE INTERFACE)是外部应用程序与WEB服务器交互的一个标准接口。CGI应用程序可以完成客户端与服务器的交互操作。例如:一个能够访问外部数据库的CGI程序可以使客户端用户通过WEB服务器进行数据库的查询。 传统的WEB浏览方式均为单向,CGI的出现提供了交互访问能力,使得INTERNET漫游更生动更实     

基于ARM的家庭视频服务器的研究

针对家庭网关的最重要功能:远程监控功能,本文设计了一个基于ARM平台的嵌入式家庭网关服务器平台。平台中集成了boa服务器和家庭网络服务器及视频服务器于一体,通过通用网关接口程序CGI,实现了远程用户和家庭内部网络的动态交互。本文中研究的数据信息主要是摄像头视频信息,采用了将视频信息通过ActiveX控件解码,发送的方式在HTTP浏览器上直接播放的方式来实现远程传输(本文不论述信息家电的远程控制部分)。     

机房环境设备的远程监控系统设计

结合机房环境设备的管理需要,分析了远程监控系统的特点,提出基于嵌入式Web服务器的远程监控系统设计思路、体系架构方法。结合CGI程序的设计,着重探讨了嵌入式Web服务器的实现方法。     

基于uIP与AJAX的动态Web服务器设计

针对远程信息监测系统中数据的实时采集更新问题,将AJAX和CGI应用到嵌入式Web服务器的设计中,实现了服务器与浏览器之间的动态信息交互。本文首先分析了uIP协议栈,并在协议栈之上设计了Web服务器,然后利用CGI服务程序处理来自客户端的XMLHttpRequest对象请求,实现动态Web功能。现场实验结果表明,嵌入式Web服务器降低了服务器端的资源开销,提高了响应速度。     

基于嵌入式的智能家居监控系统设计

针对目前智能家居监控系统硬件设施比较昂贵,不适合普遍使用的缺点,提出了一种以ARM9处理器和Linux操作系统为平台的嵌入式智能家居监控系统,实现了家居的远程视频监视和家电的远程模拟控制.该系统内移植嵌入式Web服务器,用户可通过浏览器进行远程访问.采用HHTP协议和CGI技术,设计和开发人机交互界面和基本的CGI程序,能与客户端浏览器进行动态交互.测试结果表明,该系统人机界面友好、可扩展性强、操作使用方便,远程监控图像流畅、清晰,可以满足不同用户的需求.     

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.