基于C8051F060的智能碳硫分析仪控制系统

针对传统碳硫分析仪测控系统扩展芯片多、线路复杂、资源扩展受限、易出故障、编程麻烦等缺点，给出了基于C8051F060单片机的智能碳硫分析仪控制系统的设计。该系统主要有下位机、触摸屏或上位机、高精度电子天平和微型打印机组成，下位机程序由C51开发。上位机数据采集控制软件由VB编写；给出了系统的硬件结构框图和软件流程框图。与传统的单片机控制的碳硫分析仪控制系统相比，该系统具有精度高、结构简单、操作灵活等特点。实际运行结果表明，该系统运行可靠，精确度和稳定性均达到了设计要求。     

在应用可编程测控网络设计

介绍一种在应用可编程单片机系统设计方案。该方案设计简单,技术成熟,适合于基于8051核的CISC结构的单片机系统。详细介绍了该方案的实现方法与引导程序及上位机软件的设计。     

STM32双核板的应用设计与ISP的从机软件升级

针对单片机应用设计中的资源不足、可靠性差和软件升级问题,设计了一款基于 Cortex M3内核的双核板。该双核板在不增加开发难度的情况下使单片机资源翻倍;通过两个 MC U之间的任务合理分工和相互监督,提高了整体系统的可靠性;利用CAN总线完成主机与上位机的通信和升级程序的下载,并通过控制引脚实现基于 ISP功能的从机软件升级。     

基于单片机红外无线通信的抄表系统

本文介绍了用红外线实现上位单片机和多个单片机间的无线串行通信的新方法,并基于该方法设计实现了新型无线抄表系统,给出了硬件线路图、通信协议和程序流程图及用MCS51汇编语言编写的部分串行通信程序。     

基于CAN总线的ECU在线编程技术

针对已安装完成的车身ECU程序升级困难的问题,基于CAN总线的自定义协议,设计了一种ECU在线升级方案,并在Infineon XC2000系列单片机上具体实现。详细介绍了在线升级系统的软硬件组成、单片机Bootloader的设计方案,以及系统的工作过程。实验结果表明,该系统能够很好地完成ECU在线升级功能,并能有效解决ECU在线升级过程中的一些问题。     

基于AVR的智能流量监测盒的研究

介绍一种用于监测流量的基于AVR有远程控制功能的智能化仪器设计过程。详细描述了仪器的工作原理,AVR单片机系统及上位机的编程,并给出单片机C源程序及上位机程序的流程图。     

基于ModBus协议的大屏幕在线监视系统设计

根据污水处理过程中复杂工艺参数的监视问题和某污水处理厂自动化监控系统设计方案,提出一种基于ModBus协议的大屏幕在线监视系统的设计方案,实现与上位组态软件之间的数据通讯。文中介绍了大屏幕在线监视系统的设计方法和硬件结构,上位组态软件的接口程序,并详细阐述ModBus通信协议以及单片机通信程序设计。目前,基于ModBus协议的大屏幕在线监视系统已经投入运行,并且成功接入到污水处理厂自动化监控系统中。该系统组态简单方便,数据通信稳定可靠。     

基于C8051F34x单片机的USB Bootloader设计

介绍了一种在Silicon Labs公司的C8051F34x系列单片机上实现USB Bootloader的设计方法,使应用程序可以通过USB或COM通信实现远程在线升级。首先,简述了USB Bootloader;然后,详细阐述了USB Bootloader程序的设计和APP固件程序的设计,以及设计中需要注意的问题;最后,用VC++开发上位机软件来完成该Bootloader的远程在线下载功能。该Bootloader可以很方便地在其他类似单片机上移植,通用性强。     

基于PC通信的数字电压表设计

介绍一种基于PC通信的数字电压表的设计方法,该表由硬件和软件两部分构成,硬件主要包括数据采集电路、LED显示电路、单片机与PC的接口电路;软件主要有单片机数据采集与显示程序、单片机与上位机通信程序、上位机数据处理程序。调试结果表明,该系统样机既可以完成现场数据的测量与显示,又可以通过串行通信将测量数据传送给PC,并在PC上进行显示。     

基于单片机的电脑遥控系统的设计

文中提出了一种电脑遥控系统的设计方案,采用ATMEL公司的AT89C52单片机作为主控芯片,结合单片机和电脑的串行通信接口以及红外通信,再通过上位机控制管理系统实现对电脑的遥控。该系统由于采用单片机和利用数据库进行数据管理,因此成本低,安全,可以灵活的对电脑进行各种复杂的操作。该设计采用KEIL公司的编译软件KEILC51编写单片机程序,采用Visual Basic 6.0编写上位机程序。并且给出了系统电路原理图和程序流程图。     

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.     

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。     

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.     

基于AD9626的模拟信号采集存储卡设计

自然界的绝大部分信号都是以模拟的形式存在,因此模拟信号的采集转换存储在数字时代十分关键。文章讨论了在雷达信号处理领域基于AD9626的AD采集存储卡的设计原理、硬件结构和程序设计与芯片配置等问题,为今后相关领域的研究提供了可参考的方案。     

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     

A human-computer interface for non-computer specialists

The COM teleconferencing system was designed to be easy to use for both beginners and people with much computer experience. A number of design choices in organizing the human-computer interface were considered very carefully. These design problems are not unique for teleconferencing applications, but will appear in many other developments of human-computer interfaces for non-computer specialists. This report discusses naming conventions, menu format, user commands, help facility and the treatment of ‘type ahead’ from the users.