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。     

车载自动售货机系统的设计与研究

随着售货机管理经营技术手段的不断完善,开发出基于车载移动无线自动售货机是当前人们现实需求以及技术发展的需要.该系统结合GPRS、GPS、GIS等技术,设计并开发了安全有效的传输协议.实现了车载终端与远程监控中心的无线通信.在监控端实时显示当前各个售货机终端的交易信息、位置以及远程控制车载终端.经过实验测试,该系统能够准确、快速的完成指定功能.     

自动售货机手机刷卡支付系统

应用手机RF—UIM卡技术,结合CDMA无线通信技术,设计自动售货机的手机刷卡支付系统。在取代原始售货机硬纸币支付的同时,实现售货机联网监控的功能;主要结合RF—UIM卡刷卡模块搭建刷卡平台,实现自动售货机手机刷卡支付。实验验证了该设计的可行性,在自动售货机行业具有广泛的应用前景。     

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GPRS网络的自动售货机监控系统的设计实现

能及时地了解自动售货机当前的运行状态和存货状态是运营商进行补货、维修的关键,结合自动售货机本身和GPRS的特点,设计了基于GPRS的自动售货机监控管理系统,通过该系统可以及时地获得自动售货机相关的数据,为运营商做出下一步行动提供了可靠的数据;详细介绍了整个监控管理系统的总体框架,并着重介绍了GPRS终端设计实现和传输的数据格式及安全性的设计;该系统已经运用于实际,并达到了预期的效果。     

基于移动支付的自动售货机实时监控系统设计

智能自动售货机缺少实时监控功能,导致带来不必要的损失,从而影响消费行为,降低运营商的经济效益。设计基于移动支付的自动售货机实时监控系统。设计系统硬件包括移动支付物联网平台搭建单元、监控芯片选取单元及其监控通信单元;软件包括移动支付物联网监控模块、售货机终端监控模块及其数据库构建模块。通过上述硬件单元与软件模块的设计,实现了自动售货机实时监控系统的运行。测试实验对象,创建实验网络环境,进行自动售货机实时监控实验。实验数据显示：相较于现有系统,设计系统响应时间缩短,监控有效率提升,充分证实了设计系统监控效果更好。     

基于CDMA网络的售货机远程监控系统设计与实现

针对自动售货机的单机运营模式的缺陷,提出了联网实时监控的实施方案。通过对售货机情况和消费者习惯的分析,与实际无线网络的结合,制定了消息传输应答措施和界面查询系统。能通过CDMA网络监测售货机的联网状态,跟踪销售和运行状况,并且通过与数据库的结合,方便了维护人员补货和消费者查询,使售货机系统运作更稳定,用户消费更快捷。着重介绍了该监控系统的系统组成和实现的关键问题。     

基于GPRS售货机监控管理系统的研究与设计

为了进一步提高自动售货机的管理水平,设计并实现了一种基于GPRS技术的自动售货机监控管理系统。首先是系统的总体设计,包括系统体系结构、系统工作流程和系统的总体结构;然后对系统的相关模块的实现方法进行了详细的分析讨论;最后是关于自动售货机新技术的展望。     

基于GPRS的自动售货机管理系统设计与实现

针对目前远程自动售货机管理方面的缺陷,提出了一种方便、实时的自动售货机管理方案,该方案的实现以GPRS、Internet网络为支撑;系统包括远程自动售货机、中心服务器和通信网络,在自动售货机终端、中心服务器端嵌入GPRS模块,实现自动售货机终端经由GPRS无线网络、Internet公网接人中心服务器;系统应用GPRS网络提供的点到点业务(Point To Point,PTP)和点到多点业务(Point To Multipoint,PTM)两种类型数据业务,实现自动售货终端和中心服务器、中心服务器与服务提供商(Service provider,SP)之间的通信.在服务端为SP提供基于Web和短信息的两种管理方式,SP可经由中心服务器向远程自动售货机发送各种指令,查询和管理远程自动售货机.     

自动售货机集群管理专家决策系统

主要讨论了专家决策系统在自动售货机集群管理中的应用,给出了一个通过无线网络联结的自动售货机集群的专家决策系统的系统结构,以及构造该系统的步骤过程,建立了自动售货机集群管理专家决策系统的模型库,利用决策模型对所采集的自动售货机中的数据进行分析,并根据专家系统的推理得出专家结论,给操作人员一个决策的参考,实验证明自动售货机专家决策系统的应用降低了售货机的运营管理成本且提高了运营效率。     

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.