基于GPRS的自动售货终端的设计与实现

针对目前我国自动售货机远程监控方面的缺陷,提出了一种稳定、实时的售货监控系统方案.该系统采用GPRS网络实现自动售货机与远程监控中心的通信,并在此基础上设计出了适应于自动售货机的GPRS无线终端以及该系统信息传输的数据格式.通过该系统可以解决传输信息不及时,信息量有限的问题,使运营商能及时地获取自动售货机的相关信息,便于管理和维护.     

基于远程多参数的嵌入式监护系统研究

该文研究了基于嵌入式计算机的远程多参数监护系统,该监护系统主要由远程多参数监护终端,Internet和GPRS网络,医院监护中心服务器组成。远程多参数监护终端是整个系统的核心,它主要由多参数监护模块,嵌入式计算机系统,GPRS无线模块构成。在远程多参数监护终端中实现了嵌入式操作系统Linux的裁减,定制和移植,并且在此基础上介绍了基于嵌入式Linux操作系统的网络编程,实现了嵌入式计算机监护终端与监护中心服务器的数据通信,嵌入式多参数监护终端通过GPRS自动接入Internet,以及服务器端基于Winsock网络编程的实现。基于嵌入式计算机的远程多参数监护系统具有成本低,体积小,功耗低,携带方便,并且可以实现基于Internet和无线GPRS的心电,血压,呼吸,体温等多生理参数的远程监护。     

基于GPRS的无线煤矿监控系统的设计

针对煤矿安全监控的现状,文章提出了一种基于GPRS通信技术的无线煤矿监控系统的设计方案,介绍了该系统的硬件和软件设计。该系统利用监控终端完成现场数据的采集和处理,通过PPP(LCP,PAP,IPCP)网络协商将GPRS无线网络接入Internet,实现了远程监控中心对煤矿现场的实时控制。     

用IP2022实现支持GPRS的GPS系统

随着移动GPRS 业务的开展,GPRS 成为将现场采集来的数据远程传输回数据中心的一种比较好的解决方案。本文将介绍一种 G P S 系统,并简要介绍其中所涉及的 G P S 终端电路、终端软件、服务器等关键技术。利用该系统可以将GPS 定位信息通过GPRS 网络送回GPS 服务器,并可将服务器的管理数据透明地下发到GPS 终端,同时支持对 GPRS 终端的远程管理。该系统的实现为GPS 用户提供一种有效的解决方案。     

基于GPRS网络的无线数据传输系统

构建了一种以嵌入式ARM微处理器LPC2210为核心,结合GSM/GPRS无线传输模块MC35开发的无线数据传输系统设计方案.系统硬件部分由数据采集处理终端、GPRS网络、Internet网络、监控中心服务器组成,软件部分包括操作系统,采集终端软件和控制中心服务器端软件.重点论述了软件系统的层次结构和实现难点.     

一种遵循欧洲自动售货机协议的监控系统设计①

目前我国自动售货机远程监控系统数据传输协议格式不统一,各个厂商的管理平台之间没有兼容性。针对这种现状,研究并设计一种基于EVA-DTS和GPRS的自动售货机监控系统方案。利用GPRS实现售货机与监控中心的组网,采用EVA-DTS建立数据的格式,设计并实现了实时的、安全度高的监控系统。该系统能够保障自动售货机与数据中心稳定的通信,便于运营者的运营和管理。任何符合EVA-DTS的售货机都可以用该系统进行管理,具有很强的通用性。     

基于GPRS的智能家居安全监控

为了掌握智能家居的安全性,需要监测家居的图像信息;采用嵌入式系统获取家居的监测图像,通过GPRS无线远程通信和Intemet传输,实现了基于uClinux嵌入式操作系统的图像采集网络仪器和通过GPRS传输的家居远程图像通信系统;网络仪器以MCF5272为硬件核心,以uClinux为操作系统,采用GPRS方式实现远程接入Internet;图像经过解码和编码后,以文件方式保存和传输;介绍了图像采集网络仪器的构成、GPRS远程家居图像通信系统的组成、接人Internet的uClinux方式、嵌入式中图像文件自动传输与接收设计,并通过实验检验了网络仪器和家居远程通信的实现方案;结果表明,通过GPRS和网络仪器,可以实现家居的安全监控,从而保护家居的财产安全.     

一种遵循欧洲自动售货机协议的监控系统设计①

目前我国自动售货机远程监控系统数据传输协议格式不统一,各个厂商的管理平台之间没有兼容性。针对这种现状,研究并设计一种基于EVA—DTS和GPRS的自动售货机监控系统方案。利用GPRS实现售货机与监控中心的组网,采用EVA—DTS建立数据的格式,设计并实现了实时的、安全度高的监控系统。该系统能够保障自动售货机与数据中心稳定的通信,便于运营者的运营和管理。任何符合EvA—DTS的售货机都可以用该系统进行管理,具有很强的通用性。     

基于GPRS和ZigBee的远程分布式灯光控制系统

为解决城市灯光控制系统引起的耗能问题,提出一种基于GPRS(通用分组无线服务)和ZigBee的LED节能照明远程分布式智能控制系统。采用基于PWM(脉冲宽度调制调光)技术的智能控制终端,使用ZigBee无线网络进行LED灯具的终端通信,实现分布式智能控制;通过GPRS通讯模块接入GPRS网络和远程控制中心相连,实现远程智能控制。测试结果表明,该系统集成3种不同通讯模式实现LED灯光的远程分布式智能控制,可根据不同的场合灵活选择合适的控制方式;控制方便、易于扩展,具有较强的实用价值和推广意义。     

基于GPRS远程医疗系统的移动终端设计与实现

远程医疗是基于生物医疗、计算机科学、通信技术等多学科,将无线数据传输、计算机软硬件技术等密切结合的高新技术。介绍远程医疗系统的组成及其工作原理,设计基于ARM芯片S3C2410和MC55无线模块的远程医疗系统的移动终端,该终端以ARM芯片为控制器,以通用无线分组业务GPRS(General Packet Radio Service)无线网络和Internet网络为通道,实现远程生理数据的传输。该终端具有强大的数据采集和处理功能。实验结果表明,该移动终端通信可靠、实时性好。     

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。