【作者】 张墨；

【导师】 林中；

【作者基本信息】 北京邮电大学 ， 机械电子工程， 2009， 硕士

【摘要】 自从IEEE 802.11b/g无线局域网标准制定以来,无线宽带通信得到了迅速发展。而随着嵌入式技术己经深入到人们工作和生活的方方面面,嵌入式系统的无线局域网接入将会有广阔的应用前景。工业自动化领域的监控系统需要实时采集摄像头、传感器及多种设备的数据信息,工作人员通过手持无线终端进行相应的监控和操作,可以极大提高工作效率。本课题即研究基于嵌入式技术的此类无线终端的设计及监控系统的整合。本文对基于ARM技术的嵌入式微处理器、嵌入式系统的基本架构、开发环境的建立和Linux系统下驱动设备的开发进行了深入研究,成功实现了USB接口的无线网卡在嵌入式平台上的正常运行。研究了在嵌入式平台下对摄像头及云台电机的控制使用方法,进而实现了远程监控功能。其中基于MiniGUI嵌入式图形界面设计的无线终端采用了模块化的思想,通过无线网卡以Telnet远程登录方式完成了远程控制电机旋转和摄像头拍摄的命令,达到了之前的预期效果。更多还原

【Abstract】 Since the IEEE 802.11b/g WLAN (Wireless Local Area Network) standard was drawn up, Wireless Broadband Communications technology had a rapid development. And with the embedded technology goes deep into nearly each fields of our work and life, the wireless access of embedded system will have very broad application prospects. The monitoring system of industrial automation needs to collect much data and information of cameras, sensors and other different equipments, and people can check and operate with a wireless hand-hold terminal, which could extremely improve efficiency. This paper has done research on the design of wireless terminal based on embedded technology and the integration of monitoring system.In this paper, there is an in-depth research on the embedded microprocessor based on ARM technology, the basic architecture of embedded system, the establishment of cross compiler environment and the Linux system device driver. This paper designs and implements the successful runningg on the embedded platform of USB wireless card. This paper discusses the controlling method of camera and cradle motor based on embedded platform, and implements the remote monitoring function. The wireless terminal based on MiniGUI graphic design adopts a modularization idea, implements the remote controlling of motor rotating and camera shooting with Telnet rlogin method through the wireless card and achieves the previous expectation.更多还原