With the rapid development of technology and the security industry , the customer have great demand for the definition of the front camera , then the AHD monitoring equipment is born , it supports HD video transmission and storage. Because of the monitoring device has limited performance and resource, to ensure that the client in the low bandwidth environment to achieve real-time playback of multi-channel video is of great value. In order to achieve 16 channels real-time video playback of the AHD video surveillance network client, this paper proposes and designs a scheme of dual-stream storage and playback based on AHD monitoring equipment. By testing the performance of the system and the effect of the replay, the result shows that the CPU usage can be reduced by 10%, and the occupancy rate of 100 M Ethernet bandwidth reduced by 13%, which can guarantee 16 channels of video playback in real time under the condition of low bandwidth.%随着技术水平提高,安防产业的快速发展,客户对监控平台以及前端摄像头的清晰度要求越来越高,AHD监控设备随之诞生,该设备支持高清视频的传输和存储,但是由于监控设备性能和资源有限,保证客户端在低带宽环境下实现多路视频实时回放是具有重要价值的.本文为实现AHD视频监控网络客户端16路视频实时回放,采用双码流存储回放方案,通过系统性能和回放效果测试,得出该方案在16路回放时使CPU使用率降低10%,百兆网卡下带宽占用率降低13%,即能在低带宽条件下保证16视频回放的实时性.
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