基于物联网的自助洗车系统设计与实现

针对传统洗车低效率、高消耗等问题,设计实现了一套基于物联网技术的新型自助洗车机系统。系统分为洗车机终端和云服务器端两个部分。洗车机终端以STM32F103VET6作为主控芯片,并利用霍尔流量传感器获取水流量,实现流量计费。GPRS-SIM868模块可实现与远程服务器的无线数据通信,并通过搭载各类传感器采集洗车机的状态数据。同时,云服务器端与洗车机终端建立UDP通信,实现对洗车机终端数据的获取,并通过以Tomcat作为Web服务器、MySQL为数据库建立B/S架构的数据管理系统。用户可以根据洗车机终端LCD显示屏提供的信息,自主选择支付方式、洗车模式以及计费模式。同时,后台管理人员可以通过网络及时了解自助洗车机的相关信息,对洗车机进行实时监控与管理。     

基于GPRS技术双向监控在化工行业中的应用

对移动通信GPRS技术应用于传统的化工系统进行了研究,提出了基于GPRS技术的双向监控系统.采用了GPRS数据传输模块、一次表、二次表、服务器、RS232/RS485转换器、Modem、充电回路等设备,可用专用软件监控本地设备的同时能有效监控远程设备,成功实现了本地和远程数据中心对设备的监控.     

基于GPRS的污水厂远程监控系统

工控系统中现场监控设备一般有多而分散的特点,工控系统设计需遵循集中管理、分散控制的原则,对远端的设备采用无线通信方式实现数据传输.介绍了上海市松江西部污水厂监控系统设计方案,着重论述了基于GPRS技术的远端监控系统实现方案,给出了基于TCP/IP的远程通信机制,GPRS实现远程通信的具体实现方法.目前,该方案已应用于上海市松江西部污水处理厂,成功地实现了远程监控,具有稳定性、可靠性、经济性、实时性等特点.实践证明,该方案对于工业监控系统的设计有一定的参考价值.     

基于GPRS网络的飞机除冰液加热监控系统

针对飞机除冰液加热,设计了一种基于GPRS(通用分组无线服务)网络的远程监控系统.它可以实现对设备的实时监控,及时有效地完成飞机地面除冰.该系统由上位机和下位机两部分组成:PLC作为下位机的控制系统,对执行机构进行控制输出,并且由A/D转换模块采集加热设备管道内的物理参数;远程控制中心作为上位机的监控系统,包括两种方式:一是利用数据服务中心作为远程控制中心,二是利用组态软件设计系统的操作界面作为远程控制中心.GPRS DTU(data transfer unit)通信模块通过GPRS网络完成与远程控制中心的无线通信,实现上位机与下位机之间的数据交互.     

基于无线通信的设备远程监控系统

针对当前工业设备监控系统存在的实时性差、智能化程度不高等问题,在分析了GSM/GPRS网络特点的基础上,设计并实现了基于S3C2440的嵌入式设备远程监控系统.介绍了硬件体系结构、操作系统移植、远程监控软件设计以及数据库设计.该监控系统具有使用方便、体积小、成本低等特点,可以对工业设备进行有效监控.     

基于无线模式的中央空调节能监控网络应用研究

基于信息节能的理念,构建了一个基于无线模式的中央空调节能监控网络,实现了对大型公共建筑或建筑群中央空调系统的节能监测与控制.所研发的现场节能监控装置以PLC为核心,配以人机界面、GPRS模块等.过程控制系统采用以负荷预报为基准的节能监控策略.现场监控装置与系统监控中心采用GPRS无线模式进行组网与通信,通过GPRS无线网络,将设备运行数据上传给监控中心,监控管理中心可以对各节能监控节点进行远程监控管理.     

塔式起重机远程安全监控管理系统设计

针对起重设备大范围、分布式工作模式和高效、安全运行作业的需求,设计了基于GPRS的远程监控系统,实现对起重设备群的安全监控。系统由远程监控中心、无线传输网络和机载监控前端组成,以ARM9和WinCE6.0为平台设计监控前端,对塔机运行进行监测与安全预警;采用GPRS和Internet网络实现了监控中心和监控终端之间的数据传输;利用Java设计了人性化的远程监控中心调度和管理软件,实现了监控中心对机群的同步监控与统一管理。现场运行证明该系统具有良好的性能。     

基于GPRS-Internet的城市路灯远程监控终端实现

本文介绍了基于GPRS-Internet的城市路灯远程监控系统组成、通信以及远程监控终端的软硬件实现.远程监控终端通过GPRS数据终端连接到GPRS-Internet,与监控中心进行远程通信,实现遥控、遥测和遥信的功能.     

采用GPRS的远程UPS设备监控系统

开发设计了一套基于通用无线分组业务(GPRS)的机房不问断电源(UPS)在线监控系统,该系统可以远程监控UPS的电压、电流和温度等运行参数,并将采集到的数据通过GPRS和IP网络传输到监控中心或手持终端;可以远程设置UPS相关参数,设备运行异常时,系统自动发送报警信息,实现对机房UPS的远程在线实时监控,实际应用表明了该系统的优越性.     

城市排水泵站远程监控系统设计

结合城市排水泵站地域分散的特点及时远程监控的需求，设计了基于GPRS的排水泵站远程监控系统，分析了系统设计与实现中的关键技术。系统采用宏电的GPRS 7118 DTU来搭建GPRS通信平台，设计并实现了GPRS接口程序和数据中心。该远程监控系统已经成功投运，并将监控系统画面在Internet上进行了发布。     

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。