This thesis expatiates the relative theories of mnvms such as motion video capture , data code and real - time transport protocol based on the technology of multimedia and computer network . then the hardware and software models of mnvms are presented . it analyses the function of each software module 本文在计算机多媒体技术和网络技术的基础上分析了多媒体数字视频监控系统相关技术视频采集、数据编码等的基本原理,介绍了实时传输协议,提出了多媒体数字视频监控系统的硬件结构和软件结构通过设计相应的多媒体数字视频监控软件系统,分析了各个重要的软件模块的功能。