通用传输控制模块在采集系统中的设计

本文介绍了一款基于USB 2.0,EZ-USB FX2单片机与FPGA架构的通用传输控制模块在数据采集系统中的设计与实现.EZ-USB FX2单片机(CY7C68013)以从属FIFO模式与FPGA配合工作构成此通用模块,通过USB2.0接口实现计算机与外设数据与控制/状态信息的交互传输.主要介绍了系统的组成与硬件设计、CY7C68013的功能设计、固件设计、驱动及驱动与应用程序的接口.     

基于USB2.0技术的高速双路数据采集系统

本文设计了一种基于USB2.0芯片CY7C68013和Maxim公司的高速并行模数转换芯片Max1195的高速双路数据采集系统,采用EZ-USB FX2的特有的GPIF（General Programmable Interface）传输方式,彻底打破了8051CPU对USB2.0传输速率的瓶颈,同时避免了使用其他微处理器或者CPLD、FPGA等的硬件开支.本文详细介绍了该数据采集系统的硬件组成和软件设计,包括单片机CY7C68013的固件设计和计算机主机用户程序.通过与高精度激光纵模分析仪的连接调试,证明该系统已经达到了既定目标.     

基于USB3.0的高速读数盒设计

针对测试系统中USB2.O接口已不能满足当代测试速度需求,提出一种基于USB3.O和FPGA的高速读数的解决方案;该方案以FPGA为核心控制器,EZ-USB FX3被配置成Slave Fifo从模式;通过对DMA通道和GPIFⅡ接口优化设计以实现指令的下传和数据的高速上传;经实际传输测试,该读数盒能在传输数率高达228 MB/s时依然能保持正确无误的高速传输。     

基于Wireless USB的数据采集系统设计

针对工业生产过程中大批量高速数据采集和实时传输处理的要求.采用Cypress公司的无线USB系统作为无线数据的射频收发模块,结合Cypress公司的EZ-USB系列芯片和Altera公司的ACEX1K系列FPGA芯片设计了一套数据信号采集和无线传输系统.主要阐述了整个系统的原理、硬件构建方法和软件部分的开发过程.     

基于USB 2.0接口的反重力铸造充型过程测试系统

介绍以USB 2.0为通信接口的反重力铸造充型过程测试系统的设计与实现。本系统采用Cypress公司的支持USB2.0高速传输的EZ-USB FX2系列器件CY7C68013A作为主控制器,搭建外围数据采集电路,实现采集数据的快速传输。与以标准串行接口为通信接口的方法相比,本系统数据传输速率高,实时性强,精确性高。     

基于TMS320F2812和EZ-USB FX2的多路数据采集系统

介绍一种基于TMS320F2812和EZ-USB FX2的多路数据采集系统.该系统通过TMS320F2812内置的AD芯片对多路模拟电压信号进行采集,并通过EZ-USB FX2芯片上传到PC.同时,上位机也可以通过EZ-USB FX2向DSP核心发送控制命令,以实现采样率控制和通道选择等功能.     

基于USB2.0接口芯片FX2的高速数据采集板的设计实现

介绍一种使用USB2，0接口芯片EZ-USB FX2系列CY7C68013作为主控芯片,外接高速FIFO、CPLD及高速ADC,设计实现了一个高速数据采集板,可对输入的单路单端模拟信号进行8位高速采样,通过PC机的USB2，0接口总线连续不问断地传输所采集的数据到PC机内存中,速率可达20MB（Bytes）每秒,同时可将内存中所采集的数据写到永久磁盘文件中。     

基于FPGA的主从式高速数据采集与传输系统

针对数据采集系统有信号形式多样、实时传输和灵活配置的要求,介绍了一种基于FPGA的数据采集和传输系统,以及系统数字电路的程序设计.该系统以现场可编程逻辑阵列(FPGA)作为数据采集、预处理、组帧和传输的控制核心,通过低速串口接收控制命令,以高速USB接口向控制台发送采集数据帧,设计了数字FIR滤波器滤除采集电路的信号干...     

基于FPGA的大容量数据高速采集系统的设计

介绍了一种基于DDR2 SDRAM与USB 2.0接口的大容量数据高速采集系统,该系统以FPGA为控制核心;利用FPGA的内部模块化的编程、DDR2 SDRAM的大容量存储以及USB 2.0接口的高速传输能力实现了数据的高速采集、大容量存储和传输;该系统支持热插拨和即插即用,使用方便;实验结果表明该系统可以实时高速的进行数据采集、存储和传输,最高传输速率可达20 MByte/s;在信号的高速采集领域有着很高的应用价值。     

基于CMOS图像传感器的视频采集系统

设计了一个基于CMOS图像传感器的视频采集系统,.详细介绍了该系统的硬件电路和时序设计,系统采用FillFactort公司的IBIS5-A-1300芯片作为图像采集芯片,通过USB2.0控制器EZ-USB FX2芯片作为数据采集芯片,实现了图像数据的实时采集.试验结果表明,该系统视频采集系统成像清晰,可靠,能够很好的完成视频采集的要求.     

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.     

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     

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.     

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.