区域供水工程计算机遥测遥控系统的研究

采用先进的Citect监控软件，应用系统工程学方法，研制了适用于区域性供水工程的计算机远程管理与监控系统。该系统能够实时显示整个系统的运行状态，对现场各设备进行远程控制。同时具有实时显示的数据处理、远程控制、报警处理、数据库功能和网络处理等功能。应用在生产实际中产生了较好的社会效益和经济效益。     

Ajax在网络考试系统中的应用

分析了目前在网络考试系统中存在的实时保存考生答案和考试时间的准确控制和显示问题。给出了较详细的利用Ajax设计的方案和关键代码，实现了考生在答题时页面不刷新，答案能实时传送到服务器端进行保存；考试时间由服务器端进行控制，并在客户端动态地变化和显示。     

基于GPRS的供水管网无线监控管理系统

为实现供水管网的信息化管理,提出了一种基于嵌入式技术和GPRS技术的供水管网远程监控系统设计方法.分析了系统功能,给出了系统总体设计方案.重点介绍了采用uCOS-Ⅱ实时操作系统的数据采集终端软件设计,给出了利用GPRS网络和winsock网络编程技术实现无线数据传输的通信协议,利用ADO数据库访问技术设计了数据库管理系统.实验结果表明,该系统在GPRS业务平台上实现了对供水管网参数的实时采集、处理、无线传输及远程监控等功能.     

基于DirectShow的实时立体视频远程监视技术的研究

本文对基于DirectShow的实时立体视频监视技术进行了研究，并开发了相应的系统。系统分服务端和客户端两部分，服务端利用两个工业控制摄像头和两块视频捕捉卡，通过多通道数据采集和融合的方法对现实场景进行实时的视频数据采集；客户端探讨了立体显示机制，再现服务端现场的三维立体视频。     

自动化技术在铁路编组站中的应用

1引言我国铁路承担了近60％的旅客周转量和70％的货物周转量，运输极度繁忙。为缓解这种局面，可多修复线和三线，扩建站场和增大机车的牵引力，但投资巨大，工程时间长，见效慢。因此，切实有效的措施是广泛深入地采用自动化技术，使铁路这样一个地域广阔，作业点分散，要求实时统一调度指挥的大系统，实现作业管理的一体化和实时化。根据我国铁路的具体情况和作业特点，应在以下四个方面重点实现自动化：l）编组站作业过程，特别是解体作业；2）列车运行控制调度系统；3）铁路运行计划的编制和指挥；4）财务与统计管理等。在当前铁路运输…     

基于组态和多串口的恒压供水监控系统设计

为适应我国供水事业现代化发展的要求,建设自动化供水站,实现供水管理现代化,根据农村供水工程的特点,利用现代信息技术设计和供水自动监控系统的设计方法,提出了一种基于组态软件和多串口通讯的变频调速恒压供水监控系统设计方案,详细讨论了系统硬件的组成、工作原理、运行方式,并介绍了三维力控的组态软件PCAuto6.0在恒压供水控制系统中的应用;该系统具有功能完善、运行稳定、可靠性高、节能效果显著和性价比高等特点,并已成功应用于农村供水工程中。     

智能监控技术在集中供水工程中的应用

为解决农村乡镇集中供水工程中供水设施简单、管理效率低的问题,采用单片机、GPRS数据技术以及组态软件,设计了一套智能监控系统,并对该系统的稳定性、可靠性进行了实验。实验结果表明,该系统可以实时监测蓄水池的液位,自动控制水泵、除氟泵的启停,并能远程监测管路压力及用水量,对供水管路进行控制。     

远程测斜监控系统的开发和研究

远程测斜监控系统是为了解决建筑施工过程中监测数据得不到实时采集和处理的问题.系统由数据采集模块,CPRS无线发送接收模块,图形界面显示与控制三大模块组成.通过数字传感器和Nios Ⅱ构件的平台采集得到工程数据,利用GPRS通讯技术发送数据至PC机进行图形界面显示与控制.系统在岩土工程、斜坡变形检测等得到应用,而且提高了实时监控力度和管理效率,减少了施工事故的发生.     

工程飞行模拟器平显系统的数字仿真设计

工程飞行模拟器平显系统的数字仿真对于系统设计、方案论证和飞行控制律设计有着重要的意义 ,目前国内各种期刊当中关于平显系统方面的文章大都以特定显示仪器为基础 ,系统复杂 ,成本较高 ,针对这种情况 ,在查阅有关文献、上机实验的基础上 ,文中总结出了一种单纯以计算机系统实现的数字仿真方法。该方法使用图形加速技术、和实时显示算法 ,满足了工程飞行模拟器平显系统的各项技术要求     

远程集散式计算机测控系统的设计

本文介绍一种使用于铁路供水的远距离计算机集散测控系统，它是采用先进的计算机技术、测控技术和通信技术相结合的测、控、管一体化的综合应用系统。本文就该系统的设计方法、结构特点及软、硬件设计等做了论述     

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。     

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.     

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.     

View-based model-driven architecture for enhancing maintainability of data access services

In modern service-oriented architectures, database access is done by a special type of services, the so-called data access services (DAS). Though, particularly in data-intensive applications, using and developing DAS are very common today, the link between the DAS and their implementation, e.g. a layer of data access objects (DAOs) encapsulating the database queries, still is not sufficiently elaborated, yet. As a result, as the number of DAS grows, finding the desired DAS for reuse and/or associated documentation can become an impossible task. In this paper we focus on bridging this gap between the DAS and their implementation by presenting a view-based, model-driven data access architecture (VMDA) managing models of the DAS, DAOs and database queries in a queryable manner. Our models support tailored views of different stakeholders and are scalable with all types of DAS implementations. In this paper we show that our view-based and model driven architecture approach can enhance software development productivity and maintainability by improving DAS documentation. Moreover, our VMDA opens a wide range of applications such as evaluating DAS usage for DAS performance optimization. Furthermore, we provide tool support and illustrate the applicability of our VMDA in a large-scale case study. Finally, we quantitatively prove that our approach performs with acceptable response times.     

A pragmatic multi-method investigation of discrepant technological events: Coping,attributions, and ‘accidental’ learning

Discrepant technological events or situations that entail a problem, a misunderstanding or a difficulty with the Information Technology (IT) being employed, are common in the workplace, and can lead to frustration and avoidance behaviors. Little is known, however, about how individuals cope with these events. This paper examines these events by using a multi-method pragmatic approach informed by coping theory. The results of two studies – a critical incident study and an experiment – serve to build and test, respectively, a theoretical model that posits that individuals use a variety of strategies when dealing with these events: they experience negative emotions, make external attributions, and adopt engagement coping strategies directed at solving the event, eventually switching to a disengagement coping strategy when they feel they have no control over the situation. Furthermore, users’ efforts may result in ‘accidental’ learning as they try to overcome the discrepant IT events through engagement coping. The paper ends with a discussion of the results in light of existing literature, future opportunities for research, and implications for practice.