ARM的网络摄像机的设计与实现.docVIP

论文题目： 学科专业： 研 究 生： 签名： 指导教师： 签名： 答辩日期： 2010-3-2摘 要 1）硬件电路系统设计。首先在分析网络摄像机的数据处理流程的基础上，提出硬件系统需求，然后根据嵌入式系统设计方法学的原则，进行相关芯片的选型。其次，在完成芯片选型以后，根据各相关数据手册进行原理图绘制，在分析了各信号流程和速率以后，完成PCB设计。最终完成硬件系统设计。 2）开发环境的建立。本文采用交叉开发方式，上位机使用普通PC机安装linux的Fedora 10操作系统，编译安装arm-linux交叉编译工具链，目标板使用S3C2440A作为系统核心，采用六层PCB核心板和两层PCB的底板的方式构成。移植u-boot 1.1.6到本系统来完成底层硬件初始化和软件运行环境设定，并引导系统核心，嵌入式系统使用linux2.6核心经过移植裁剪以后在本硬件平台上运行。 3）软硬联合调试与系统功能测试。实现了网络摄像机的基本功能，本系统上电后直接接入教研室局域网，网络上的任意一台电脑（包括有线和无线）即可访问本系统摄像机的实时图像信息，图像分辨率为640*480，图像质量较好。 本文从网络摄像机系统分析设计、软硬件开发平台搭建、嵌入式系统移植、网络摄像机功能实现与测试四个方面详细讨论了高清网络视频摄像机的设计与实现。 关键词：硬件；PCB；交叉编译；嵌入式系统；移植；网络视频监控终端； Title: Design and realize of IP camera based on ARM Major: circuit and system Name: Hongfei Wang Signature: Supervisor: Ningmei Yu Signature: Abstract Fast social development makes Video Monitor System playing an increasingly important role in our lives, but the traditional Anolog Video Monitor System, with a limited bandwith, can not meet our increasing demand any more. The popularity of the network makes the Web-based Monitor System becoming the next generation of Video Surveillance system. Therefore it is important to do more research on the IP Cameras. Based on the analysis of existing Video Monitor System, this thesis designed the hardware circuits for the IP Cameras and developed the ARM-based embedded system. After carefully problems debugging, this thesis finally succeeded in achieving the basic functions of the network camera. This paper’s main work are include: 1) The hardware circuit system designs: Based on the analysis of the data processing network camera, hardware system requirements are proposed. Then chip selection is done according to design methodology of embedded system. After that, schematic is completed with the help of the data manual, Also PCB design is accomplished based on the analysis of the signal flow direction