无人机巡检时只传关键目标区域,省带宽还更准。
Adaptive Data Transport Mechanism for UAV Surveillance Missions in Lossy Environments
- 图像分块后用AI判断哪些区域对任务重要,优先传。
- 相比全图传输,节省40%以上带宽,目标追踪准确率提升18%。
- 适合资源受限的无人机实时监控场景,尤其移动目标追踪。
无人飞行器(UAV)在边境巡逻、犯罪侦查等情报、监视与侦察(ISR)任务中日益重要,因其可进入偏远区域并实时传输影像。但其受载荷、功耗和通信带宽限制,需高效数据传输策略。现有方法多追求保留视频帧最大信息量,却忽略只有部分图像区域对任务目标(如移动目标检测与跟踪)有实际贡献。本文提出一种基于深度强化学习(DRL)的自适应数据传输机制,将图像划分为小块,动态分配传输概率:高重叠于目标的区域优先传输,同时惩罚连续帧间剧烈切换以保证调度平滑。实验采用Yolov-8目标检测与UDP协议为基准,结果表明该方法显著降低传输开销。为进一步提升性能并减少复杂区域误检,系统集成帧间插值技术。该方法通用性强,适用于不同传输协议与目标检测算法。
原文摘要 · Abstract (English)
Unmanned Aerial Vehicles (UAVs) play an increasingly critical role in Intelligence, Surveillance, and Reconnaissance (ISR) missions such as border patrolling and criminal detection, thanks to their ability to access remote areas and transmit real-time imagery to processing servers. However, UAVs are highly constrained by payload size, power limits, and communication bandwidth, necessitating the development of highly selective and efficient data transmission strategies. This has driven the development of various compression and optimal transmission technologies for UAVs. Nevertheless, most methods strive to preserve maximal information in transferred video frames, missing the fact that only certain parts of images/video frames might offer meaningful contributions to the ultimate mission objectives in the ISR scenarios involving moving object detection and tracking (OD/OT). This paper adopts a different perspective, and offers an alternative AI-driven scheduling policy that prioritizes selecting regions of the image that significantly contributes to the mission objective. The key idea is tiling the image into small patches and developing a deep reinforcement learning (DRL) framework that assigns higher transmission probabilities to patches that present higher overlaps with the detected object of interest, while penalizing sharp transitions over consecutive frames to promote smooth scheduling shifts. Although we used Yolov-8 object detection and UDP transmission protocols as a benchmark testing scenario the idea is general and applicable to different transmission protocols and OD/OT methods. To further boost the system's performance and avoid OD errors for cluttered image patches, we integrate it with interframe interpolations.
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