城市监控报警联网平台流媒体系统研究与设计  

Research and Design of Streaming Media System for City Monitoring and Alarming Networking Platform

作　　者：孟卿卿[1] 王建勇[1] 

机构地区：[1]公安部第一研究所信息技术事业部,北京100048

出　　处：《计算机工程》2016年第11期290-294,299,共6页Computer Engineering

基　　金：国家"十二五"科技支撑计划项目"基于视频及公共动态信息的智能研判技术研究及应用示范"(2013BAK02B02)

摘　　要：为解决大范围监控视频联网过程中面临的不同丢包率、网络类型及系统带宽等复杂网络环境问题,参照GB/T 28181国家标准及相关行业标准,提出一套基于会话初始协议及实时传输协议的城市监控报警联网平台流媒体系统协议框架,并以该协议框架为基础,设计一套城市监控报警联网平台流媒体系统的实现方案。该方案基于中心流媒体服务器及云存储技术,支持多级跨域大规模媒体互联和媒体数据高效集中存储及分发。应用结果表明,该方案的单域实时视频点播响应时间可控制在2 s以内,且能够有效适应丢包率高达30%的网络环境,具有较好的通用性、稳定性及适应性,能够满足安防一线监控视频联网要求。In order to solve the complex network problems in the process of large-scale monitoring video interconnection,such as different packet loss rate,network types and system bandwidth,according to GB/T 28181 national standard and related industry standards,a streaming media protocol framework for the city monitoring and alarming networking platform is proposed,which is based on Session Initiation Protocol（SIP）and Real-time Transport Protocol（RTP）.On the basis of this proposed protocol framework,a streaming media system implementation scheme for the city monitoring and alarming networking platform is designed.Based on the central streaming media server and cloud storage technology,this scheme supports wide range multi-level and cross-domain media interconnection as well as efficient and centralized media data storage and distribution.Practical application proves that the proposed scheme is able to reduce the response time of single-domain real-time video request to less than 2 s,and effectively adapt to the network environment whose loss rate is up to 30%.It is better at universality,stability and adaptability,and is able to meet the requirements of public security video monitoring interconnection.

关 键 词：视频监控国家标准 流媒体系统 会话初始协议 实时传输协议 云存储 

分 类 号：TP37[自动化与计算机技术—计算机系统结构]