基于MFRC530的非接触式IC读卡系统设计

以MFRC530为核心模块的系统,介绍了非接触式IC卡的工作原理,重点介绍了该系统的方案及硬件电路的构成.该系统支持type A卡和type B卡读取,并且实现了10cm范围内的非接触式IC卡信息的准确读取.该系统成本低廉,但是性能可靠,可应用于门禁系统、考勤系统、管理系统及某些消费领域等,具有很高的实用价值.     

基于Linux串口的非接触式IC卡开发应用

在Linux操作系统平台下的串口通信基础上,研究了如何通过编写程序实现在Linux系统下,应用字符设备开发IC卡设备驱动模块。基于Linux串口编程和非接触式IC卡应用设计并实现了一个串口通讯过程,并以相应的程序实例加以说明。有效利用了非接触式IC卡的特点,提高了读写卡的速度。     

基于Linux串口的非接触式IC卡开发应用

在Linux操作系统平台下的串口通信基础上,研究了如何通过编写程序实现在Linux系统下,应用字符设备开发IC卡设备驱动模块.基于Linux串口编程和非接触式IC卡应用设计并实现了一个串口通讯过程,并以相应的程序实例加以说明.有效利用了非接触式IC卡的特点,提高了读写卡的速度.     

射频识别非接触式IC卡读卡器的设计

非接触式IC卡技术成功地将射频识别技术和IC卡技术结合起来,解决了无源、免接触问题;该非接触式IC卡读卡器是以射频识别技术为基础,以Mifare卡作为读卡器识别对象,采用非接触式IC卡读卡器核心读写模块MFRC500和单片机来设计的;具体阐述了非接触式IC 卡读卡器硬件电路和软件开发,给出了硬件原理图并对其作了详细的说明;实际使用表明,该读卡器性能稳定,功耗低,抗干扰能力强,免接触读写距离可达lOcm.     

基于MF RC500的IC卡在高校机房管理中的应用

随着高校扩大招生,管理越来越庞杂,向数字化信息化发展是必然趋势,如何将散乱的"信息孤岛"有机地整合起来,以Philips公司的MF1S50非接触式IC卡和RC500模块为基础,并对RC500模块驱动程序进行设计和解析,实现将高校机房管理纳入校园IC卡一卡通管理范畴,提高管理效率。     

用于非接触式IC卡的高频接口模块设计

在论述非接触式IC基本结构的基础上,介绍一种应用于非接触式IC卡的高频接口电路的设计方案,分析该接口电路各个模块的结构和整个电路的工作过程。事实表明,该高频接口电路实现了对接收能量的转换和整流稳压,为内部逻辑电路提供了稳定的电压,可以应用于非接触式IC卡芯片中。     

智能水表控制器的研究与设计

使用智能IC卡水控系统,在节资增收的同时,还可以为使用者带来许多好处。系统根据智能水表的需求,研究了智能水表的整体技术方案和水量采集技术!并对智能水表的控制技术与计费方式行了研究与讨论。系统硬件由STM8S105控制模块、水量采集模块、电动阀开关控制模块、IC卡读写模块、显示模块等组成,系统软件完成了水量采集、水量处理、计费等功能,同时也开展了对非接触式IC卡智能水表系统的安全性研究。     

非接触IC介质及其应用技术

(2012-102-日本-009)外方公司成立于1972年,职员358人。主要从事系统软件技术开发和应用,是富士通、NTT等公司合作伙伴,是一家有较强实力的系统软件技术开发企业。非接触式IC卡较接触式IC卡具有小型化、防磨损、功能更强等优点。该技术提供通用型优良的非接触式IC卡,并提供有更多附加价值的应用系统。     

一种基于Mifare卡的射频读写器的设计与实现

非接触式IC卡技术,成功地将射频识别技术和IC卡技术结合起来.其中非接触式IC卡读卡器是非接触式IC卡技术应用的关键之一.文中介绍的非接触式IC卡读卡器是以射频识别技术为基础.以MIFARE卡作为非接触式IC卡读卡器识别对象.根据1S01443A协议,采用非接触式IC卡读写芯片(Phililzs)MFRC500和AT89C52单片机来设计,简要介绍了非接触式IC卡内部结构和工作原理.读写器芯片MFRC500的主要特性和内部结构,详细阐述了非接触式IC卡读卡器硬件电路和软件开发,该读卡器性能稳定,功耗低,抗干扰能力强,读写距离可达100mm.     

非接触式IC卡在公共汽车自动售票系统中的应用

本文介绍了非接触式IC卡的原理和结构。详细阐述了非接触式IC卡公共汽车自动售票系统的硬件组成、软件设计和工作原理。     

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。