论文部分内容阅读
针对传统监控取证系统体积大、移动性差、成本高等不足,运用嵌入式技术,视频处理技术及无线网络传输技术,设计了一种基于ARM9的便携式网络监控取证系统[3]。该系统以ARM9芯片S3C2440为硬件平台,以Linux操作系统为软件开发平台,将USB摄像头采集到的图像数字化后经过MPEG-4压缩算法的处理,通过构建嵌入式Web服务器[2]以及Java Applet技术[1],实现了远程监控端通过IE浏览器对现场的监控取证,最终形成了一套集视频采集、预处理、存储、显示、传输为一体的便携式视频监控取证终端系统。
In view of the large volume, poor mobility and high cost of the traditional surveillance forensics system, an embedded ARM9-based portable network surveillance forensics system is designed by using embedded technology, video processing technology and wireless network transmission technology [3]. The system takes ARM9 chip S3C2440 as hardware platform and Linux operating system as software development platform. After digitizing the images captured by USB camera, it processes the MPEG-4 compression algorithm, and constructs embedded Web server [2] and Java Applet technology [1] Realized the remote monitoring terminal through the IE browser on-site monitoring forensics, and ultimately formed a set of video capture, pre-processing, storage, display, transmission as one of the portable video surveillance forensic terminal system.