宽带接入网中远程监控业务的实现

介绍H.261/263、JPEG、MPEG-1/2/4等图像编码技术,分析比较宽带接入网新业务——远程监控业务的图像压缩方式及实现过程。最后结合系统实例,从基于ADSL/cablemodem点对点方式、基于企业局域网VPN方式和基于宽带小区局域网方式等方面,重点探讨和研究其系统构成和实现过程,并给出系统实现框图。

This paper describes the video coding technologies of H.261/263,JPEG,MPEG-1/2/4,analyzes and compares broadband access network new services—video compression modes of remote monitoring and their process of implementation.Finally,in conjunction with system case study,and based on ADSL/cable modem point-to-pointmode,enterprise LAN VPN mode,and broadband residential LAN mode,this paper emphasizes the study of system architecture and the process of implementation.System implementation block diagram is also given.