电熨斗在线温度检测系统的设计

针对电熨斗生产线上工人调温不准确且效率低下的问题,研发了一种电熨斗在线温度检测系统。介绍了该系统的硬件电路原理图和软件设计流程框图,并对其进行了误差修正,误差在1℃范围之内。利用该系统不仅能显示实时温度,还能显示周期性的最高、最低温度,利于生产线上进行多工位快速准确调温;实现与上位机的通信,方便厂家进行品质管理。     

Design of online temperature measurement system or electric iron

针对电熨斗生产线上工人调温不准确且效率低下的问题,研发了一种电熨斗在线温度检测系统.介绍了该系统的硬件电路原理图和软件设计流程框图,并对其进行了误差修正,误差在1℃范围之内.利用该系统不仅能显示实时温度,还能显示周期性的最高、最低温度,利于生产线上进行多工位快速准确调温；实现与上位机的通信,方便厂家进行品质管理.     

初晶温度在线检测中数据实时处理的方法

利用EP9315强大的快速处理和显示图形的功能,设计了基于EP9315的嵌入式实时在线铝电解质初晶温度检测系统;该系统可以在15英寸触摸屏上实时显示温度曲线并能实时的计算出初晶温度值;通过上层软件可以实时地将采集到的温度数据和曲线数据保存到数据库中,以便后期分析;经过近2年6次现场一系列实际的测试和实验表明:该系统即便在高温和强磁场下,仍具有系统稳定,测量实时准确,检测重复误差的绝对值在2℃以内等优点.     

输液自动报警系统

针目前我国小型社区医院在输液方面仍处于人工干预的状态,需要人力时刻观察输液。针对此情况,设计了一种以单片机为基础的点滴输液系统。该系统有液位监控模块,点滴采集模块,显示模块,滴速监控模块,按键设置模块以及温度采集模块。具有对当前点滴滴速的检测,水位的检测,液体温度预警,声光报警,实时显示等功能。在实际输液中能达到较好的监控效果。     

一种燃气锅炉温度及水位控制系统设计

针对国内家庭取暖燃气锅炉温度及水位控制的应用需求,设计了一种温度、水位自动控制系统。系统以AT89S51单片机作为核心控制芯片,利用PID算法对检测信号与设定值的差值进行调节,然后输出控制信号控制通入燃气的开关,以控制温度。介绍了系统所包括的各模块以及采用单片机汇编语言对上述模块进行软件编程的方法。经测试,该系统能够实现锅炉温度与水位的显示、控制及报警。     

基于LabVIEW的温度采集系统设计

文章针对日常生活中温度这一基本环境参数,设计并开发了一套基于LabVIEW的温度采集系统。该系统利用温度传感器DS18B20进行温度数据采集,采用LabVIEW上位机软件实现温度显示、数据分析处理与存储等功能。该系统有适应性较强、液晶显示等优点,具有温度信息实时监控、响应速度快、温度检测范围为-55～125℃等特点。     

多点土壤温度测量系统的设计与实现

为了实现不同土层温度实时监测,方便研究温度对农作物根系生长的影响,基于计算机技术和传感器技术,开发了多点土壤温度测量系统。该系统以C8051F310单片机位控制核心,利用DS18B20数字温度传感器实现了对10个不同土层温度测量显示、存储、传输等功能。应用结果表明:该系统具有操作简便,监测精度高的特点。     

基于串口通信的高温高精度电阻测量仪研制

为了实现对电阻的精确测量和实时监测,方便研究温度对电阻变化的影响,开发了高温高精度电阻测量仪系统.该系统以计算机串口通信技术为核心,实现了对电阻和温度精确测量显示、存储、传输等功能.介绍了利用Delphi7开发的串口通信和数据处理程序,并给出了主要源代码,利用该测量系统可以获得电阻值与温度的关系曲线.应用结果表明,该系统具有操作简便,监测精度高的特点.     

基于MSP413单片机的热量表检测系统的研制与开发

以MSP413单片机为核心,研制开发了一种热量表检测系统。该检测系统的硬件部分主要由CPU主控芯片、按键模块、驱动显示模块、温度参数检测模块、流量参数检测模块以及光电隔离模块构成。该检测系统用来检测热量表的流量、进水温度、出水温度、瞬时流量、累计流量温度、流量等参数是否准确。实例表明,该测试系统在检测热量表参数过程中具有操作简单、检测精度高、速度快等特点,并能实时显示检测结果。     

基于单片机的温度远程控制系统设计

本文介绍了一种基于单片机和VB的库房温度远程控制系统.该系统采用高精度的数字温度传感器及简单实用的输出控制电路同时对两个库房的温度进行检测和控制.检测误差小于±0.5摄氏度.通过RS232串行总线,用户可对温度实施远程控制,通过上位机可实现报警温度设置、库房实时温度的显示、温度曲线绘制、存储、查询、统计、控制等功能,系统操作简便、自动化程度高、扩展方便且具有良好的人机交互功能.该系统经过实验,取得了较为满意的控制效果.     

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.