面向视频监控系统的数据网关负载均衡策略

发布时间：2018-01-21 00:16

本文关键词： 视频监控系统数据网关实时转码负载均衡设备休眠设备迁移　出处：《计算机工程》2015年10期 　论文类型：期刊论文

【摘要】：在当前网络视频监控系统中,数据网关与摄像机采用手动关联方式,进行大规模实时转码时易使单点负载过高。针对该问题,提出一种基于负载均衡策略的自适应关联方式。设计设备休眠和迁移机制,每台网关记录设备闲置时间,将超时设备投入休眠以降低自身负载。网关调度器周期性获取各网关负载,通过引入负载预警区和二次指数平滑模型预测负载,将过载判断时机提前。过载网关根据最近调用结束优先原则结合设备活跃度选择设备进行迁移,从而间接实现负载转移。实验结果表明,在4台网关36组轮切测试环境下,该方式较手动关联可缩短42.9%的实况开始平均响应时间。
[Abstract]:In the current network video surveillance system, the data gateway and the camera adopt the manual correlation method, which is easy to make the single point load too high when carrying out large-scale real-time transcoding. An adaptive correlation method based on load balancing strategy is proposed. A device hibernation and migration mechanism is designed. Each gateway records the idle time of the device. The gateway scheduler periodically acquires each gateway load and predicts the load by introducing the load warning area and the quadratic exponential smoothing model. According to the principle of end priority of recent calls, overload gateway can select the device to migrate according to the principle of device activity, so as to realize the load transfer indirectly. The experimental results show that. In 4 gateways 36 groups of wheel cutting test environments, the average response time of 42.9% live start can be shortened by this method compared with manual correlation.
【作者单位】：浙江大学数字技术及仪器研究所;
【基金】：国家“863”计划基金资助项目“相控阵三维声学摄像声纳信号处理系统”(2010AA09Z104)
【分类号】：TN948.6;TP393.05
【正文快照】： 中文引用格式:沈翼洲,蒋荣欣.面向视频监控系统的数据网关负载均衡策略[J].计算机工程,2015,41(10):1-5.英文引用格式:Shen Yizhou,Jiang Rongxin.Load Balancing Strategy of Data Gateway for Video Surveillance System[J].Computer Engineering,2015,41(10):1-5.1概述随着

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