一种基于ARM的视频监控系统的硬件设计  

A Hardware Design of Video Monitoring System Based on ARM

作　　者：汪晓斌[1] 

机构地区：[1]常州纺织服装职业技术学院信息技术系,江苏常州213164

出　　处：《计算机与现代化》2010年第11期66-71,共6页Computer and Modernization

基　　金：常州纺织服装职业技术学院重点课题资助项目(2008-YJ-19)

摘　　要：嵌入式Web技术对降低监控系统成本,提高系统可靠性有着卓越贡献,因此基于ARM的视频监控系统将成为新的研究热点。本文提出一种基于嵌入式Web技术的视频监控系统硬件设计方案,使用户不受时空限制,通过Internet利用Web浏览器实现对远程摄像头设备的在线访问、监控等操作。其中嵌入式网络视频服务器采用AT91SAM7X256作为主控芯片,视频图像信号的采集通过OV7640构成的串口摄像头获取,网络传输由RTL8021BL网卡模块实现。实际运行效果表明该硬件系统具有良好实时性和稳定性,具有实际应用与推广价值。The embedded Web technology is contributing to reducing monitoring system cost and improving system reliability greatly,so the remote image monitor and control system based on ARM will become new research focus.This paper presents a hardware design of a kind of monitoring control system based on embedded Web technology,the design realizes the online remote supervision,management and maintenance,using a standard Web browser over Internet without time-space constraints.An ARM7-core processor AT91SAM7X256 is selected as a control chip in embedded video network server,with video signal captured by CMOS image sensor OV7640 and message transmitted by network module RTL8021BL.Practical results demonstrate the favorable stability and real time characteristic of the hardware system which can meet the most of network application demands and is worth popularizing.

关 键 词：ARM 监控系统 AT91SAM7X256 OV7640 RTL8021BL 

分 类 号：TP393[自动化与计算机技术—计算机应用技术] TP303[自动化与计算机技术—计算机科学与技术]