物联网技术与应用研究

物联网技术是现代社会中一种应用非常广泛的新技术,未来将会有更加广阔的发展.本文对物联网的概念及特性进行分析,探讨了物联网技术在农业、、铁路交通、卫生信息化等领域的具体应用.     

基于WSNs技术的高速公路交通监控系统研究

作为一种全新的信息获取和处理技术,无线传感器网络(WSNs)集成了传感器技术、网络技术、及MEMS技术,可广泛应用于军事、交通、环境监测等各种领域。而高速公路交通监控系统的研究与应用可促进我国高速公路的信息化、网络化和智能化建设。本文结合WSNs技术与传统信息获取技术,将WSNs作为监测子系统的重要基础部分,目的是构建一个新型的高速公路交通监控系统,以提高高速公路的运行效率、避免严重汽车追尾事故的发生。并对系统的主要组成、实现功能及工作机制进行了说明。     

无线传感器网络的体系结构和应用安全

随着物联网应用领域的不断扩大,无线传感器网络的应用也以前所未有的速度迅速拓展。无线传感器网络(WSN)具有覆盖区域广泛、检测精度高、可以远程监控和高容错性等优点,使其在军事、工业、农业、环境保护、医疗系统、智能交通等各领域得到了广泛的应用。虽然无线传感器网络的应用前景非常广泛,但仍存在很多技术问题需要解决,包括最大限度减少传感节点的功耗,以及如何有效提高网络系统容量、减少碰撞阻塞等。为了有效解决以上技术难题,通过对MSN的体系结构以及具体应用领域的研究,提出了解决办法。     

基于WSNs技术的高速公路交通监控系统研究

作为一种全新的信息获取和处理技术,无线传感器网络(WSNs)集成了传感器技术、网络技术、及MEMS技术,可广泛应用于军事、交通、环境监测等各种领域.而高速公路交通监控系统的研究与应用可促进我国高速公路的信息化、网络化和智能化建设.本文结合WSNs技术与传统信息获取技术,将WSNs作为监测子系统的重要基础部分,目的是构建一个新型的高速公路交通监控系统,以提高高速公路的运行效率、避免严重汽车追尾事故的发生.并对系统的主要组成、实现功能及工作机制进行了说明.     

人工智能与智能交通的交叉融合

智能交通系统是近几年迅速发展的一个领域,需要大量与智能相融合的技术提供支撑。人工智能技术是当今IT技术发展的前沿,已经广泛应用于多个领域。由于智能交通系统可以为人工智能的应用与发展提供大量研究对象,因此实现人工智能技术与智能交通领域的融合具有重要意义。笔者分析了智能交通系统的发展、特点,阐述了了人工智能技术在交通领域的应用,并针对两者交叉融合的结点综述智能交通系统,提出了未来智能交通的设想。     

基于人工智能的图像识别技术在交通气象服务中的应用

近年来,人工智能技术得到了较为快速发展,在多个领域中都具有广泛的应用,人工智能技术在交通气象服务领域中具有较大的应用空间。基于此,笔者首先介绍了人工智能技术的发展现状及应用情况,进而阐述了交通气象服务与人工智能技术之间的关联,最后详细分析了人工智能技术在交通气象服务中的应用情况,并介绍了未来人工智能技术在气象服务中的发展趋势。     

农用无线传感器网络硬件平台的研究与设计

集传感器技术、嵌入式计算技术、微机电技术（MEMS）、分布式信息处理技术及无线通信网络技术于一体的无线传感器网络因其广阔的应用前景已经成为当前备受关注的、多学科高度交叉的、知识高度集中的热点研究领域。同时将无线传感器网络应用于农业领域已得到很多农业科技工作者的重视。作为无线传感器网络关键技术之一的硬件平台的研究与设计是其农业应用研究及推广的首要问题。为加速无线传感器网络在农业领域的应用，本文首先分析比较国内外无线传感器网络节点及网关的现状、发展及技术特点，最后针对农业应用环境具体提出无线传感器网络硬件平台的设计方案，该硬件平台无论是行业应用还是算法及协议验证都具有良好的前帚。     

基于物联网的农业感知数据融合应用研究

随着物联网技术的不断发展,在农业领域中物联网技术得到了广泛的应用.农业物联网主要是通过传感器技术,对农业领域生产和管理的数据信息进行收集,所以农业感知数据的融合在农业物联网应用中是非常重要的.对农业物联网技术及农业感知数据的特点进行了分析,对农业物联网中农业感知数据融合的方法进行了研究,结合农业物联网技术应用的实际情况,对基于物联网的农业感知系统的硬件和软件进行了设计和研究.     

基于概率的无线传感器网络故障检测和诊断

无线传感器网络主要是以Ad Hoc方式由多个传感器组成的无线网络,在无线网络覆盖的区域中,感知和采集相关数据信息。近年来,传感器技术、嵌入式计算技术和无线通信技术快速发展,无线传感器具有良好的通信、计算和感知能力,被广泛的应用在减灾防灾、交通监测、工业控制以及军事国防等领域,具有巨大的社会价值和经济价值。     

基于电化学的固态CO2传感器研究进展

用于检测环境中气体的电位传感器已经在传感器技术领域发展为一个成熟的方向。由于在各个行业有着广泛的应用,可靠廉价的CO2传感器有着巨大的市场潜力。总结了基于电化学的固态CO2传感器类型,分析了它们的检测过程,提供关于其传感原理和特性研发的广泛概述,并描绘了基于电化学的固态CO2传感器在未来各种应用的可能性。     

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。     

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。