DB41 河 南省地方标准 DB41/T 949—2014 高速公路数字化视频监控设备 联网技术要求 Technical specification for digitalized network of highway video surveillance devices 2014-07-30发布 2014-09-30实施 河南省质量技术监督局 发布   DB41/T 949—2014 目 次 前言 ............................................................................... III 1 2 3 4 5 6 范围 .............................................................................. 1 规范性引用文件 .................................................................... 1 术语和定义 ........................................................................ 1 缩略语 ............................................................................ 3 一般规定 .......................................................................... 4 联网体系结构 ...................................................................... 5 6.1 多级多域联网 .................................................................. 5 监控资源 ...................................................................... 6 6.2 6.3SIP网关.......................................................................7 联网系统设备要求 .................................................................. 7 7 7.1 7.2 7.3 7.4 7.5 7.6 7.7 7.8 信息采集 ...................................................................... 7 传输 .......................................................................... 7 视频切换 ...................................................................... 7 图像显示 ...................................................................... 8 网络服务器 .................................................................... 8 用户终端 ...................................................................... 8 流媒体发布单元 ................................................................ 8 存储设备 ...................................................................... 9 8 9 音视频编解码要求 .................................................................. 9 8.1 概述 .......................................................................... 9 编码设备技术要求 .............................................................. 9 解码设备技术要求 ............................................................. 10 8.2 8.3 传输协议要求 ..................................................................... 10 9.1 通信协议结构 ................................................................. 10 音视频流传输协议 ............................................................. 11 会话控制及录像回放控制协议 ................................................... 13 9.2 9.3 10SIP协议接口要求.................................................................15 10.1SIP消息定义.................................................................15 10.2SIP协议扩展.................................................................16 10.3SIP消息体定义...............................................................16 10.4 10.5 基于SIP协议的控制、传输流程