基于STM32的嵌入式煤层压力监测系统设计

为了能够对煤层开采时的压力进行实时监测和数据保存,设计了一种基于STM32F103ZET6的嵌入式高精度多路压力采集系统;利用压力传感器和18位模数转换器FS511完成煤层压力的采集并转换为数字信号,通过数字开关CD4051实现通道转换,以实时操作系统μC/OS-II作为软件平台,处理压力数据,借助图形用户接口μC/GUI实现压力数据和曲线的显示,借助文件系统FATfs实现以文件的形式将数据保存在SD卡中,便于PC读取;利用CAN总线将数据传输至上位机,进行更为复杂的处理;测试结果表明:煤层压力监测系统精度达到0.01%;本系统精度高,实时性好,满足了矿山压力实验室的需求。     

汽车减震器参数同步数据采集系统设计

为了解决汽车减震器运行时压力与位移信号难以同步采集的问题,设计了一种基于51单片机和AD7572的同步数据采集系统.系统通过51单片机控制两个独立的高速A/D转换通道同步采集压力与位移信号,采用USB串口与上位机通信实现数据的储存、传输和处理.示功图对比表明,该系统可以完成减震器关键参数的同步采集,具有较高的实用价值.     

基于云数据处理的分布式光纤应变远程监测系统设计

针对现有的分布式光纤应变监测系统数据采集量大、存储空间有限、无法远程监控等问题,设计了基于云数据处理的分布式光纤应变远程监测系统。首先,基于ADO数据库访问技术设计了数据库访问编程接口,使上位机程序可通过该编程接口将数据传输至远程云数据库,解决了上位机存储空间有限的问题。其次,利用多线程机制设计了上位机程序多线程并发访问数据库模块,实现了数据实时高效的传输。最后,基于ORACLE设计了数据库系统方案,将数据库搭建在云服务器端,用于存储和分析MFC程序采集处理的监控数据和异常信息,实现了云数据的实时处理和远程监控。实验测试结果表明,上位机与云数据库之间的数据交互速度满足并发和实时监测的需求。     

基于蓝牙技术的机场保障设备运行监测系统

针对机场地面保障设备运行状况依靠人工观察所带来的问题,设计了一种基于蓝牙技术的机场保障设备运行监测系统。该系统可以实现机场保障设备在线监测,及时高效地完成机场保障任务。系统由上位机和下位机两部分组成:微处理器作为下位机的控制系统,将采集的机场保障设备运行状态数据信息处理后送入蓝牙模块进行无线发送;工业级平板电脑及人机交互界面作为上位机的监测系统,完成采集数据的接收、存储和实时显示。通过蓝牙模块无线传输实现上位机与下位机之间的数据交互,利用人机交互界面实现在线监测。     

基于MSP430的温室环境数据采集和控制系统设计

在分析了传统温湿度采集设备的基础上,提出了一种以MSP430单片机为控制器,利用温湿度传感器DHT11实现对温室环境数据进行采集的系统。通过键盘和LCD1602液晶显示屏实现人机交互,利用nRF905无线收发模块将采集的数据发送到上位机,上位机通过VB和ACCESS实现对温湿度的实时监测和历史数据的保存。实验结果表明,该系统结构简单、成本较低,克服了传统采集设备布线复杂、维护困难等缺陷,而且可以实现远程监控。     

基于RS485通信的主从式粮仓监控系统

介绍了利用RS485总线为大型粮食仓库构建的主从式网络监控系统结构,及相关的软硬件设计.制订了上位机PC与下位机单片机之间的通信协议,从而使上位机能够发送命令至下位机并自动采集下位机数据,并且利用了ADO访问了Access数据库,实现了对采集来的数据进行存储、查询、打印等.     

STM32的有害气体云数据库远程检测系统设计

针对传统的VOCs有害气体检测装备无法实现对气体数据的保存及远程检测功能的问题，设计了一种结合单片机、无线通信、上位机和数据库技术的有害气体检测系统。该系统采用STM32单片机，结合辅助模块MS1100气体传感器和ESP8266-01S无线模块等设备作为下位机数据采集装置，通过无线模块把数据上传至上位机，实现了对监测空间中的甲苯、甲醛等VOCs有害气体的检测及其数据上传至MySQL云端数据库进行永久保存的功能。     

高炉红外摄像监测系统的设计与实现

论述了高炉红外摄像监测系统的中上位机各个功能的实现技术.该系统主要由三部分组成,即红外摄像头、下位机和上位机.红外摄像头获取高炉炉腔的实时图像,然后通过视频数据线传输给上位机的视频采集卡并转换为数字视频数据后在上位机显示.系统根据图像的灰度信息得到炉内的温度分布情况,并将这些数据保存到数据库以用于数据分析和问题跟踪.     

基于RS-485总线的多点温度监控系统设计

针对温室温度多点监测需要,设计了下位机＋上位机温度多点监测系统,下位机以STC 12C5A60S2为监测节点核心,节点采集的温度数据通过RS-485总线传输到上位机（PC机）,用户可通过个人PC机实时查看温室内各节点数据.重点介绍系统的软硬件设计过程,上位机软件采用C#设计,上位机终端实现了温度数据的查询、保存、输出及报警功能.该系统已投入运用,实践表明该系统运行可靠,具有一定的实用性.     

基于Proteus的智能巡检仪系统设计与仿真

设计实现了一种兼有iButton阅读和数据采集功能的智能巡检仪。系统以MCS-51单片机为核心,配置8通道AD转换器采集现场传感器数据,采用512kB Flash存储器保存现场数据和巡检记录,配置1602LCD显示模块与按键实现人机对话,通过串行通信接口与上位机通信。利用Proteus、Keil及VSPD等工具仿真实现了iButton识读、模拟信号采集存储及系统与上位机的数据通信功能。     

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.