基于Labview的虚拟温度采集系统的设计

以Labview为开发平台,实现温度数据采集系统的设计。选用温度传感器采集室内的温度信号,利用Labview虚拟平台编辑完成用户的操作界面与显示界面,然后通过采集卡及其采集任务的通道配置,完成室内温度信号的采集、传送、处理,并编程将其置于系统上位机的显示界面中显示,同时为用户提供历史查询功能。     

基于Proteus的多点测温系统仿真

介绍基于Proteus开发环境的一种多点测温系统的仿真设计。系统设计采用用数字温度传感器DS18B20进行多通道的温度采集,通过单片机与PC的串口通信,建立数据采集实时显示系统,可实时显示温度曲线。人机交互界面的设计采用VS2010开发环境,具有美观简洁的特点。     

焊接热循环过程数据采集系统的设计和实现

介绍了电弧焊接热循环过程中热影响区温度场数据采集系统的硬件设计和软件实现方法，基于简单C语言的系统主程序能实现采集、处理和显示热影响区在焊接热循环过程中的实时温度与时间关系曲线。     

人工气候箱数据采集系统的研制

介绍VB6.0的MSComm在人工气候箱数据采集系统应用,通过串口方式将人工气候箱运行数据采集到PC机,同时进行处理、记录、显示、实时绘制曲线,并将数据保存.     

一种多通道高精度数据实时采集处理系统的设计与实现

本文介绍一种高精度多通道（１６通道）实时数据采集与处理系统，可对温度和电压以及其它电信号进行自动测量与处理，实时采集数据并以曲线的形式实时显示在计算机屏幕上。软件在Ｗｉｎ９５下开发，实现了后台采集数据，前台仍可处理其它任务。该系统采用了通用的ＧＰ－ＩＢ接口协议，可以和具有ＧＰ－ＩＢ接口的测量仪器构成多个测量系统     

基于NuDAM模块的多路数据轮循采集系统

以Pc机和凌华智能数据采集模块NuDAM6000系列中的ND-6017、ND-6520为硬件核心,采用mscomm串口控件编程技术,在Windows XP平台下利用VisualC 6.0实现了"多路数据轮循实时采集系统"的研制与开发.该系统实现了智能模块与上位机的通信,完成了单路数据采集;2路、4路和8路数据轮循采集以及数据处理,数据实时显示,数据按通道分离存储.并针对2路、4路进行了冗余设计.     

基于PC与STC12C单片机串口通信的温度采集系统设计

设计了基于PC与STC12C单片机串口通信的温度采集系统。STC12C单片机作为下位机,利用数字温度传感器DS18B20采集现场温度,同时通过串口RS232将温度值上传给PC,PC实时显示温度和变化曲线。实际运行表明,系统运行可靠,界面清楚直观,功能达到设计要求。     

Labview在组态模块串行通信中的应用

本文应用Labview软件实现了上位机下研华公司生产的分布式数据采集系统ADAM5000组态模块之间的串行通信，针对系统中的16通道通用数字量I／O模块ADAM-5050，介绍了应用Labview进行串口通信的基本方法，以及应用Labview的图形化编程语言和C语言混合编程的方法，其中主要介绍了使用Labview的VISA函数以及CIN节点的方法。     

基于MSP430+μc/osII的数据采集系统设计

给出了一种应用于超声波检测中的数据采集系统设计。本数据采集系统利用实时操作系统μC/OSⅡ进行任务之间的切换和通信,保证了系统的实时性、可靠性和稳定性。通过嵌入式微处理器MSP430控制传感器采集超声波数据,处理后保存并显示,并且实时的与上位机通过串口RS232进行信息传输。     

基于LabVIEW的气压高度测量系统设计

为了准确测量高度,构建了基于LabVIEW的气压高度测量系统.从热力学角度,阐述了气压与高度的对应关系;以气压传感器为敏感元件,设计了AVR单片机数据采集、处理和传输系统;编写了基于LabVIEW的上位机串口接收、数据处理、中值滤波和显示程序,通过VISA串口接收下位机发送来的温度和气压数据,利用气压和高度的关系,计算气压对应的高度和即时速度,并在前面板以图形方式显示.以某建筑物的各楼层为研究对象进行了高度测量实验,结果表明设计的高度测量系统能够实时准确地测量和显示温度、气压、高度和速度数据,中值滤波后高度噪声减小为0.3m,是滤波前的30％.因此,基于LabVIEW的气压高度测量系统为高度测量和三维导航定位等应用提供了一种有效的参考方案.     

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.