基于GSM网络短消息的远程监控设计

利用GSM网络短消息实现对远程设备监控具有实时、方便、快捷等优点.文章给出了监控系统的硬件结构组成,并详细介绍了工作流程.利用GSM网络,结合单片机系统和串口,通过Delphi编写程序代码借助GSM网络发送AT命令,实现数据的无线传输和对设备的远程监控.     

GSM短信息在温室远程监控系统的应用

设计了基于GSM短信息温室远程控制系统,给出了系统的结构、硬件和软件设计,并着重论述了利用短信息实现远程通信的方法.系统利用现有的GSM网络资源,发挥网络覆盖率高、传输特性好等优势,为远程监控系统提供一种便捷的无线数据传输方式.     

采用Linux系统与GSM短消息实现无线远程监控

本文分析了在无线远程监控技术中采用里Linux系统和GSM短消息的优势,对无线远程监控系统的监控中心和监控终端的实现原理和实现方法进行了阐述.     

带以太网接口的GSM无线数据传输系统设计与实现

较为全面地介绍了当前远程监控系统的应用现状,并对现有传输系统的特点进行了分析和研究。在此基础上,提出了适用于远程监控系统的、基于GSM的无线数据传输系统的总体架构及设计方案,详细介绍了带有以太网接口的、基于GSM的无线数据传输系统的硬件电路与软件设计与实现方法。该系统适用于各种远程监测监控系统,对提高远程监控的数据传输效率和降低监控系统的运营成本具有重要意义。     

基于GSM的PLC车载远程控制系统设计

针对车载电器和车载系统的远程监控问题,将PLC控制系统与GSM无线传输系统相结合,设计了基于PLC车载控制系统的无线远程监控系统.介绍了系统的整体构架以及数据交互过程.在手机短信监控的模式下,该系统具有可通过GPRS接入Internet的扩展功能.远程监控实验表明,该方案设计合理,系统运行良好.     

基于GSM短消息业务的安全监控系统设计

GSM网络已经遍布世界的各个角落,成为目前最广泛应用的通信网络之一.短消息作为GSM系统中较为简便的数据通信方式,其业务和应用得到了迅猛发展.在工业控制系统中利用短消息进行数据传递,既有效又经济.为此提出了一种基于GSM短消息业务的无线远程监控报警系统,并给出了系统各模块的软硬件设计.该系统真正实现了实时监控远程传输,可广泛应用于各种不易巡检的厂房及无人值守的场合.     

移动电站远程无线监控系统设计

针对移动电站状态信息远程获取存在的问题,结合GSM短信模块与电站智能控制系统,设计了移动电站运行状态信息无线远程监控系统.介绍了电站智能控制系统的结构功能,并着重阐述了G100A型GSM模块的功能、硬件连接、工作模式、与上位机的通信帧格式以及软件程序设计.实际使用表明,该远程监控系统的功能设计达到了预期目标,具有较好的应用价值.     

网络控制中心的远程智能监控系统

应用GSM网络,以单片机和计算机为控制中心,以各种传感器为数据检测设备,组成了远程监控系统.设计的机房监控系统,综合了单片机硬件设计、串口数据传输、网络监控、GSM网络应用、LabwindowsCVI软件编程和单片机编程等多方面技术,实现了低成本智能化无人监控功能.系统不仅可以实现24小时无人监控,并具有实时消息报告与...     

基于GSM网络分布式无线通信系统

结合滑坡监测系统,重点论述了一种基于GSM网络远程无线数据通信的实现。无线远程数据采集和监控与传统有线方式相比具有不受地理环境、气候等因素限制,具有运行成本低、系统可靠、通信范围广以及更广泛的适应性等优势,它为远程监控、远程数据采集提供了一种可行的技术手段。本文利用GSM网络短消息和拨号数据通信两大功能,实现了对滑坡体的实时监测。该无线数据通信系统可以应用于其它远程监控等中小流量数据通信系统中。     

基于无线通信的设备远程监控系统

针对当前工业设备监控系统存在的实时性差、智能化程度不高等问题,在分析了GSM/GPRS网络特点的基础上,设计并实现了基于S3C2440的嵌入式设备远程监控系统.介绍了硬件体系结构、操作系统移植、远程监控软件设计以及数据库设计.该监控系统具有使用方便、体积小、成本低等特点,可以对工业设备进行有效监控.     

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.