| 南水北调工程异构网络下的视频监控方案 |
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| 引用本文： | 贾克斌,魏之皓.南水北调工程异构网络下的视频监控方案[J].北京工业大学学报,2017,43(2). |
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| 作者姓名： | 贾克斌 魏之皓 |
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| 作者单位： | 未来网络科技高精尖创新中心,北京100124;先进信息网络北京实验室,北京100124;北京工业大学电子信息与控制工程学院,北京100124;未来网络科技高精尖创新中心,北京100124;先进信息网络北京实验室,北京100124;北京工业大学电子信息与控制工程学院,北京100124 |
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| 基金项目： | 国家自然科学基金资助项目，国家科技支撑计划资助项目 |
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| 摘 要： | 针对南水北调中线工程在异构网络下的视频监控传输问题,提出了一套包括基于网络状况的带宽评估方法,以及参数可调的网络视频编码传输方式的异构网络视频监控解决方案.该方案对南水北调工程异构网络环境下视频监控系统的整体架构进行了设计,并基于实时传输协议/实时传输控制协议(RTP/RTCP)对网络参数进行了评估.在得出的网络带宽评估结果基础上,设计了一种码率可调的编码传输方案.最后结合所实现的系统,对系统性能进行了详细测试和分析.通过在南水北调中线工程的实际应用证明,本系统能够对当前带宽下的视频编码进行优化,提高异构网络下的视频编码传输效率,且性能指标达到了4路720P视频监控的设计要求.
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| 关 键 词： | 异构网络 视频监控系统 实时传输协议/实时传输控制协议(RTP/RTCP) H.264视频编码 带宽自适应 |
Video Monitoring Solution to South-to-North Water Diversion Project Under Heterogeneous Network |
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| Abstract: | A video monitoring scheme of video was proposed under a heterogeneous network,which included a network condition evaluation method and a video coding method under network with adjustable parameters.Firstly,a model of the video monitoring system for the south-to-north water diversion project under heterogeneous network was proposed.Secondly,a network parameters evaluating method based on the real-time transport protocol/real-time transport control protocol (RTP/RTCP) was presented to improve video coding efficiency with adjustable parameters.Finally,the performance of the video monitoring scheme was proved by the system deployed in the middle route of south-to-north water diversion project.The performance of the video coding in current bandwidth and the video transmission efficiency were improved under heterogeneous network.The video monitoring system met the design requirements of four channel 720P video monitoring. |
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| Keywords: | heterogeneous network video monitoring system real-time transport protocol/real-time transport control protocol (RTP/RTCP) H 264 video coding bandwidth self-adapt |
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