基于嵌入式Linux的远程视频实时监控系统设计  

Design of Real-time Video Monitoring System Based on Embedded Linux

作　　者：任志刚 刘昊[1] 李强 REN Zhi-gang;LIU Hao;LI qiang(School of Information Engineering,Beijing Institute of Fashion Technology,Beijing 100029,China)

机构地区：[1]北京服装学院信息工程学院

出　　处：《北京服装学院学报（自然科学版）》2019年第2期56-61,共6页Journal of Beijing Institute of Fashion Technology：Natural Science Edition

摘　　要：随着人们对自身安全性要求越来越高,安防意识也在不断增强,远程视频实时监控系统在保护人们财产以及人身安全中发挥了重要作用。本文设计并实现了一种基于嵌入式Linux的远程视频实时监控系统。该系统在采集端采用V4L2结构获取视频信息并进行压缩编码后暂存在服务器中。在服务器程序设计中采用Epoll与线程池结合的方式实现多台客户端同时登录服务器,显著提高了在并发连接中CPU的利用率,有效解决了因硬件资源的限制而不能满足可靠性和并发性的需求。通过对系统的整体测试,可以实现远程实时监控的功能。As people's security requirements are getting higher and higher,security awareness is constantly increased.Remote video monitoring system plays an important role in protecting people's property and personal safety.A real-time video monitoring system based on embedded linux was designed and implemented in the paper.The system uses the V4L2 structure to acquire video information on the acquisition side,and then the video information was encoded and compressed,which was temporarily saved in the server.The combination of epoll and thread pool technology was applied to the server program design to enable multiple clients to log in to the server at the same time,which significantly improves the utilization rate of CPU in concurrent connections of the program.The problem that reliability and concurrency cannot be satisfied due to limitations of hardware resources was solved.Through the overall test of the system,the function of remote real-time monitoring can be realized.

关 键 词：实时监控 V4L2 EPOLL 线程池 服务器 

分 类 号：TN919.85[电子电信—通信与信息系统]