基于CY7C68013A的数据采集模块的设计

根据电站检测中数据的测量与控制问题,提出了一种基于CY7C68013A芯片的多通道模人数据采集模块的设计方案,实际应用效果良好。着重介绍其硬件电路及接口芯片的固件设计,并阐述基于USB接口的计算机外设的软件系统。     

USB点对点通信技术在机车数据转储中的应用

介绍了基于单片机控制的USB数据转储器的工作原理,重点阐述了USB接口部分电路设计及软件设计。在DF4D型机车上的运用表明,系统设计合理,运行可靠,能满足现场大量数据快速转储的需要。     

机车网络中USB设备的开发与应用

分析了基于coldfire CPU与VxWorks实时操作系统的USB驱动程序的体系架构与设计实现,介绍了USB设备在机车通信网络中的多种应用.实际应用表明,该设备在机车网络应用中稳定可靠、方便易用,该设计可推广应用于多个领域.     

Automatic software install/update for embedded Linux

Linux has a special feature of automount in the Linux kernel. Filesystem can be mounted and unmounted automatically. Its performance is similar to MS Windows. It works well under demands of more saving resources and automatization, like memory of system. An approach to install/update software automatically on embedded platform was proposed. This approach derives from above feature based on embedded environment with Linux OS. Configurations of files related to this feature were introduced. An example in practice was given to realize this approach from universal serial bus （USB） memory disk when USB disk is available.     

Solutions for urban traffic issues by ITS technologies

In recent years, traffic congestion, traffic accidents, and deterioration of the environment because of growing population, increasing urbanization, and increasing car ownership have become serious problems in the Asia-Pacific regions. Intelligent transport systems (ITS) are systems that try to solve various road traffic issues using information communication technologies. Several countries are endeavoring to solve such traffic issues by deploying an ITS and achieving positive results. However, there are some problems in advancing ITS deployment in these countries, such as lack of technical know-how, a lack of coordination among systems, lack of a master plan, and financial constraints. In order to introduce ITSs, it is important to select suitable technologies and applications appropriate for each country. An appropriate plan and evaluation of the ITS project are also important for the introduction of ITS.In this paper, we propose methods for the utilization and introduction of ITS technologies to solve urban traffic issues in various countries, based on the lessons learned from the deployment of an ITS in Japan.     

发动机ECU模拟系统通信模块设计与应用

为使发动机ECU模拟系统能够安全、稳定、准确与及时地模拟发动机在工作时的状态,研发具有安全可靠的网络通信功能和可靠高速的USB总线数据采集处理的通信模块是必要的。文章描述了系统通信组件的建立、USB1.1总线数据采集、CAN通信协议制定及CAN—USB数据转换方式。通信的成功建立,实现了模拟发动机各种传感器信号以及模拟汽车真实的CAN网络等功能。发动机ECU模拟系统作为一种智能化汽车电子开发工具成为现实。     

开放Web2.0环境下信息服务策略分析

数字信息服务运行策略包括目标选择、环境分析和科学判断三个基本要素,在Web2.0环境下,这三个要素中目标要素的资源和技术目标、环境要素的内部和外部环境以及判断过程的取舍决定和路径选择等诸方面都面临着不同程度的变化,通过总结归纳,具体分析这些变化并提出相应的对策,其目的在于为数字信息服务在开放Web2.0环境下健康发展打下基础     

在Whidbey中构建基于MySQL的站点地图提供者

在介绍了ASP.NET2.0新的站点导航功能后,文中构建了一个基于MySQL数据库的站点地图提供者,该站点地图提供者使得开发者能够利用MySQL数据库,在Whidbey中简单、高效地来开发站点导航的Web应用。     

基于LabVIEW的通用仪器控制软件设计

仪器控制可以提高测量的自动化程度,而虚拟仪器和USB接口技术又是仪器控制领域密切关注的。本文提出如何利用虚拟仪器应用软件开发平台LabVIEW中的仪器控制功能,通过例子给出了针对Tektronix公司生产的USB接口的AFG3022可编程信号源的控制程序。     

基于FT245BM的数据采集系统设计与实现

数据采集系统的设计以FT245BM芯片为核心,数据流通过USB传输。该系统通过AD采集外部信号,在FPGA中形成数据流,经FT245BM封装后通过USB上传至PC机。同时在PC机上设计的人机界面十分友好,交互性强。系统性能测试显示,采集系统实时传输速率可达1.5MBps以上。结果证明,整个系统高速稳定,安全可靠,有很高的实用价值。