【作者】 苏宏；

【导师】 肖建；

【作者基本信息】 西南交通大学 ， 电气系统控制与信息技术， 2007， 硕士

【摘要】 随着信息技术的发展和数字化产品的普及，嵌入式设备被广泛的应用到工、农、商等各个领域。基于嵌入式系统的监控技术正在向着数字化和网络化方向发展，即从模拟信号转变到数字信号，从有线传输转变到无线传输，同时监控系统的小型化和智能化也是未来发展的趋势。本课题是嵌入式系统与无线网络在监控领域的应用，在硬件体系上采用了ARM9微处理器平台，软件上则采用了嵌入式Linux操作系统。首先研究了具有GUI(图形用界面)的嵌入式Linux操作系统的移植和构建，并开发了相应的应用程序，用户可以在终端以图形用户界面的形式来控制图像的采集、显示和发送，并且集成了简单的聊天功能。然后设计实现了一种智能化的小型监控终端系统，包括硬件电路的设计和软件系统的搭建，它可以实现无人值守自动监控，当有异常情况发生时，可以通过GPRS模块短信通知用户，并且可以接入无线网络把现场情况发给指定的计算机。本文阐述了监控系统的发展概况，介绍了实验平台硬件的原理及构成，同时阐述了嵌入式系统软件平台的搭建；在此基础上，本文重点阐述了嵌入式Linux下图形界面程序的开发和无线网络的配置，对根据课题需求设计的硬件原理图和印刷电路板进行了说明，设计了一个监控终端实验样机，并对Linux环境下进行数字图像处理作了论述，实验了一种高效率的图像处理方法。更多还原

【Abstract】 With the development of information technology and the popularization of digital product, the embedded devices are broadly used in the field of industry agriculture and commerce etc. The surveillance systems based on embedded system are progressing with the tendency of digital and network application which is including from analog signals to digital signals and from cable transfer to wireless transfer. At the same time, the trends of being more pocket and intelligent are also the direction of the development of surveillance system.This project is the application of the embedded system and the wireless network in the filed of surveillance system. The hardware system is based on the ARM microprocessor platform and the software system is based on the embedded Linux system. Firstly, we researched the design and transplant of embedded Linux system with GUI (Graphical User Interface). We developed some applications with the function of snapping, showing and transmitting photos. All the operations can be finished on the embedded terminal and you can even chat with long-distance server.Then, we designed an intelligent surveillance system which can realize the function of surveillance without supervisor. This surveillance system can automatically notice consumers by SMS and transmit the photoes to the server when there are abnormal accidents happening.The dissertation introduces the development and research status of the surveillance systems, and then introduces the hardware and software of the experimental development platform. On these fundaments, the dissertation describes the research of the embedded system with GUI and the config of the wireless network with emphasis. Also, we designed an experimental terminal including the design of the hardware (PCB) and software (Operating System and applications). Finally, a method of Digital Image Processing with high efficiency based on embedded Linux is indicated.更多还原