基于Android平台的车载视频智能监控系统的研究

针对传统车载视频监控系统网络资源利用率低、高清实时性能较差的问题,提出了一种基于Android平台的车载视频监控解决方案,对系统中关键模块作了重点研究。系统实现了P2P和C/S混合网络架构、多线程机制、丢包和包乱序处理,从而提高了实时监控性能。经实验证明,该系统实现了针对车辆的实时高效的监控,利于向智能交通领域中推广。     

基于Android平台的车载导航系统的研究与设计

为缩短嵌入式车载导航系统开发进程,提高系统维护和升级能力,研究了Android平台的特点以及车载导航系统的性能需求,提出在andriod平台基础上,结合baidu map,设计一个基于Android平台的车载导航终端系统;实验结果表明,该系统实现了车辆自我定位、地图查询、路径规划和导航;经过严格测试,系统运行良好.     

基于GPS/GPRS的车载定位系统设计

介绍了一种基于GPS和GPRS的车载定位终端系统设计.利用GPS卫星数据接收器接收车辆所处的位置信息,通过单片机对车辆位置的有效信息进行存储和控制,当车载终端接收到控制中心的指令后,通过GPRS网络传输车辆的位置信息.详细讨论了车载终端的硬件电路设计,包括控制模块、GPS卫星定位模块和GPRS无线传输模块等.实验证明,该系统性能稳定,通信效率高,功耗低,适用于车载定位监控领域.     

基于GPS/GPRS的车载监控终端系统

为提高城市车辆管理水平,利用GPS,GPRS和C8051F系列单片机构建车载监控终端系统.根据车辆状态信息采集情况设计控制器模块、GPS接收模块、GPRS无线通信模块;采用C语言对车载监控终端进行软件开发,其功能包括信令和GPS数据的接收、处理与传输,GPRS模块的数据传输与通信,I/O口信号采集与控制.该系统可应用于智能交通、物流管理及特种车辆监控调度等方面.     

带有无线智能车载终端的公交车辆管理系统的研究

提出了一种新型的车载智能终端的公交车辆管理系统.通过无线通讯模块将车载智能终端和地理信息系统相结合,能够对定线行使的公交车辆进行实时监控,以实现智能化管理的目的.该系统具有成本低,定位精度高等特点.给出了整个系统的组成及实现技术.     

基于Android平台的车载数据采集系统

汽车在人们日常生活和现代交通运输业中占有重要的地位,为了能够在线采集和检测汽车性能数据,本文设计了一套基于Android平台的车载数据采集系统。该系统借助蓝牙技术和Android平台,实现了在移动终端设备上可以随时随地获取车辆运行信息,它不仅可以监控车辆运行情况,还可以给车辆故障诊断提供依据。     

基于Android的车载导航系统的研究与设计

为了缩短嵌入式车载导航系统开发进程,提高系统维护和升级能力,研究了Android平台的特点及车载导航系统的性能需求。建立以Android操作系统、GPS技术为核心的车载导航系统终端软件。此软件对系统平台的实时路径获取、地图匹配算法校正定位模块的误差、地图的显示更新以及采用Dijkstra算法实现最短路径的导航规划都进行了详细的分析。实验结果表明,开发人员基于Android的通用框架编写的车载系统的应用软件,便于在不同平台间移植和升级。     

基于GPS和GPRS的嵌入式车载防盗系统

针对目前车辆防盗设备存在的问题及市场应用前景,提出了一种新型嵌入式车载防盗系统的设计方案.首先以S3C2410X为核心处理器、GPRS模块和GPRS模块搭建硬件平台,然后详细介绍了车载系统以及GPS和GPRS的软件设计.实验证明,本系统稳定可靠,通信效率高.对车载防盗系统的进一步实现具有参考价值.     

基于GPS/GPRS车载终端的研究与设计

主要介绍车载监控系统的组成和车载终端的开发,研究了如何应用Motorola M12和G20模块进行车辆定位及无线传输,并给出了与G20模块相关的AT指令的使用及流程.讨论了如何利用Microchip PIC系列单片机开发扩展灵活、功能完善的车载终端及AT指令的完善.     

基于物联网视觉的大型拥堵车辆调度系统设计

针对道路拥堵车辆调度问题,设计了一种基于物联网视觉的大型拥堵车辆调度系统,分析了系统的总体结构,给出了系统的ZigBee协调器模块、车载传感器节点、图像采集处理模块以及无线传输模块的硬件结构,详细介绍了拥堵车辆调度算法流程,并给出了车辆调度最佳路径算法代码,实现了大型拥堵车辆的有效调度;实验结果说明,所设计系统可获取有效的交通车辆拥堵图像,实现交通拥堵的高效调度.     

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.