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arXiv 1902.00837eess.SPcs.DC
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基于边缘计算的无人机辅助城市目标跟踪系统

UAV-aided urban target tracking system based on edge computing

Yajun Liu, Congxu Zhu, Xiaoheng Deng, Peiyuan Guan, Zhiwen Wan, Jie Luo, Enlu Liu, Honggang Zhang

摘要:

目标跟踪是社会安全的重要问题。传统上,为了对目标进行跟踪,需要将大量的监控视频数据上传到云端进行处理和分析,这给接入网和核心网的通信链路带来了巨大的带宽压力。同时,广域网中的长时延很可能导致跟踪系统丢失目标。无人机(UAV)由于其灵活性常被用于目标跟踪,但由于电池限制飞行时间有限以及场地中各种障碍物的阻挡,给其目标跟踪任务带来了两大挑战,这也很可能导致目标丢失。提出了一种边缘计算环境下无人机与地面节点协同跟踪的目标跟踪模型。该模型可以有效降低传统的基于云计算的监控摄像系统的通信开销和长时延,提高无人机在失去对目标的跟踪后重新发现目标的概率。已经证明,所提出的系统在低延迟、高可靠性和最佳体验质量(QoE)方面实现了显著更好的性能。

英文摘要:

Target tracking is an important issue of social security. In order to track a target, traditionally a large amount of surveillance video data need to be uploaded into the cloud for processing and analysis, which put stremendous bandwidth pressure on communication links in access networks and core networks. At the same time, the long delay in wide area network is very likely to cause a tracking system to lose its target. Often, unmanned aerial vehicle (UAV) has been adopted for target tracking due to its flexibility, but its limited flight time due to battery constraint and the blocking by various obstacles in the field pose two major challenges to its target tracking task, which also very likely results in the loss of target. A novel target tracking model that coordinates the tracking by UAV and ground nodes in an edge computing environment is proposed in this study. The model can effectively reduce the communication cost and the long delay of the traditional surveillance camera system that relies on cloud computing, and it can improve the probability of finding a target again after an UAV loses the tracing of that target. It has been demonstrated that the proposed system achieved a significantly better performance in terms of low latency, high reliability, and optimal quality of experience (QoE).

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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