实验室设备管理嵌入式手持终端设计

为解决实验室设备信息管理方式落后的问题,设计了一种基于物联网技术的智能设备管理手持终端。该终端以Samsung S5 PV210嵌入式处理器为核心,主要由条形码模块、RFID模块和 WiFi 模块等功能模块构成;软件上基于嵌入式Linux系统开发了手持终端程序,使用Qt开发了基于C/S架构的管理平台。所设计的手持终端实现了对设备信息的查询、添加及修改等功能的可移动式数字化管理,使得管理工作更便捷有效,可广泛应用于高校、科研院所及其他设备管理场合中。     

基于SIP的嵌入式VoWiFi电话终端设计

在802.11a/b/g无线局域网(WLAN)上采用VoIP技术实现VoWiFi电话具有较好的应用前景.本文在ARM嵌入式系统硬件平台上,采用WiFi无线模块,并应用开源的Linux操作系统移植开发SIP协议,以ARM9嵌入式系统开发板为核心扩展各功能模块设计实现了VoWiFi电话终端.完成VoWiFi电话终端语音通话功能.     

EP9302的嵌入式VoWiFi电话终端设计

在802．11a／b／g无线局域网（WLAN）上采用VoIP技术实现VoWiFi电话具有较好的应用前景。本文在ARM嵌入式系统硬件平台上,采用WiFi无线模块．应用开源的Linux操作系统移植开发SIP协议,以ARM9嵌入式系统开发板为核心扩展各功能模块设计完成了VoWiFi电话终端,实现了VoWiFi电话终端语音通话功能。     

益者三友科技推出高速WiFi透传模组

在物联网应用领域,越来越多的嵌入式电子设备利用WiFi技术连接到局端,或接入到互联网,实现数据的上传/下载、远程控制、云计算等功能。此类嵌入式设备大多没有丰富的系统资源和强大的操作系统,尤其缺乏对网络协议的支持。普通的 WiFi 无线网卡(模块)一般只支持Windows、Linux以及 Android此类系统,无法满足小型嵌入式系统的应用需求。而市场上已有的 UART接口嵌入式 WiFi模组速率只有2 Mbps,不能充分发挥 WiFi 高带宽的技术优势。     

基于WiFi的智能楼宇监控系统

针对传统智能楼宇可扩展性不足且无线采集终端高成本、高复杂度的缺点,提出一种无线楼宇温度报警与控制系统.对WiFi网络和WiFi嵌入式单芯片进行了研究.通过无线智能终端采集环境温度和工作设备的状态,并利用WiFi网络传给上位机.上位机的监控界面具有查看和控制设备的功能.实现了对室内温度和用电设备的远程监控.     

基于WiFi技术的井下多功能便携终端的设计与实现

针对井下信息设备各成体系、维护困难的问题,设计了一款基于WiFi技术的多功能便携终端。该多功能便携终端采用WiFi模块实现无线局域网的接入,其硬件电路以ARM嵌入式微处理器为核心,应用软件以嵌入式Linux为平台,可实现VoIP语音通话、人员定位、环境监测等多种功能。     

基于WiFi的物联网智能家居系统的设计研究

物联网是当今世界上最先进的信息技术之一,是涵盖多种技术的复杂环境,达到了全方位信息互联和交换的效果。随着物联网技术的发展,物联网智能家居系统得到快速发展,改变了人们的生活方式。基于此,主要研究了目前物联网的关键技术,搭建了一个基于WiFi的物联网智能家居系统,在家用WiFi网络的基础上,通过控制终端APP实现家居设备的控制。     

基于Ayla物联网云的农业大棚温湿度监控系统的设计

在互联网+的时代,物联网技术在农业中得到越来越多的应用。本文运用嵌入式微处理器构建农业大棚温湿度控制系统,在控制系统上加载WiFi模块后成为物联网智能设备,经无线局域网路由器访问Internet,将采集数据上传至Ayla物联网云平台。编制智能手机APP及时查询Ayla平台数据,获得温度与湿度数值。在宽6米、长50米、顶高2.5米的大棚中轴线方向,每隔10米设置一个测量、喷灌、通风的监控单元,实现远程启动喷灌与通风,提高了工作效率和现代农业智能化控制水平。     

基于物联网的家居控制系统设计

为了实现家居的智能化与便捷化,设计一种基于物联网的智能家居控制系统。该系统采用嵌入式技术、ZigBee通信技术、语音识别技术及WiFi通信技术实现智能居家模式与远程控制模式两种控制模式。最后制作智能家居控制系统模型,实验表明,该系统能够通过语音及移动终端对家电进行有效的控制,不仅具有智能、便捷等特点,还具有广泛的适用性。     

一种基于物联网技术的氦质谱检漏系统

针对现有氦质谱检漏系统的技术缺陷,提出了一种基于物联网技术的氦质谱检漏系统的设计与实现方案。该系统综合了嵌入式与ZigBee、WiFi等物联网技术,由主控模块、采集模块、执行模块等组成;主控模块可实时整合氦质谱检漏仪与采集模块的数据信息,控制执行模块自动完成检漏流程,并利用灰度算法预测检漏信号的稳定时机,提高了检漏效率,测试结果验证了该方案的有效性。     

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     

煤矿井下安全监控分站的设计及其仿真实现

为了设计一种具有低成本、低功耗、易操作、功能强且可靠性高的煤矿井下安全分站,针对煤矿安全生产实际,文章提出了采用MCS-51系列单片机为核心、具有CAN总线通信接口的煤矿井下安全监控分站的设计方案;首先给出煤矿井下安全监控分站的整体构架设计,然后着重阐述模拟量输入信号处理系统的设计过程,最后说明单片机最小系统及其键盘、显示、报警、通信等各个组成部分的设计;为验证设计方案的可行性与有效性,使用Proteus软件对设计内容进行仿真验证,设计的煤矿井下安全监控分站具有瓦斯、温度等模拟量参数超标报警功能和电机开停、风门开闭等开关量指示功能;仿真结果表明:设计的煤矿井下安全监控分站具有一定的实际应用价值.     

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。