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arXiv 2008.13316eess.SPcs.SYeess.SY
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激光充电无人机的动力学:电池观点

Dynamics of Laser-Charged UAVs: A Battery Perspective

Wael Jaafar, Halim Yanikomeroglu

摘要:

在本文中,我们的目标是通过不同的技术来维持无人机(UAV)为基础的任务更长的时间。首先,我们考虑使用低功率激光源(低于1千瓦)对执行任务的无人机进行充电。为了从低功率激光源获得最大的能量增益,我们提出了一种操作折衷方案,该方案包括无人机在建筑物上方休息,并清除激光源的视线。其次,提供一个精确的能量消耗/收获估计在无人机,我们调查后者的动态任务环境。实际上,我们通过利用电机和电池的电气模型来研究无人机的电池动力学。随后,使用这些模型,在一个特定的物联网为基础的用例的路径规划问题,从电池的角度重新审视。目标是使用激光充电和精确的电池电量估计来延长无人机的操作时间。通过图论方法,最佳地解决了问题,并与基准轨迹方法进行了比较。数值结果表明,这种新的电池的角度来看,所有的路径规划方法的效率。相比之下,我们发现,能源的角度是非常保守的,并没有最佳地利用现有的能源资源。然而,我们提出了一个简单的调整方法来纠正能量的角度,通过仔细评估的能量作为一个功能的无人机运动制度。最后,研究了湍流度、距荷电源距离等参数对荷电性能的影响。

英文摘要:

In this paper, we aim to sustain unmanned aerial vehicle (UAV) based missions for longer periods of times through different techniques. First, we consider on-the-mission UAV recharging by a low-power laser source (below 1 kilowatt). In order to achieve the maximal energy gain from the low-power laser source, we propose an operational compromise, which consists of the UAV resting over buildings with cleared line-of-sight to the laser source. Second, to provide a precise energy consumption/harvesting estimation at the UAV, we investigate the latter's dynamics in a mission environment. Indeed, we study the UAV's battery dynamics by leveraging the electrical models for motors and battery. Subsequently, using these models, the path planning problem in a particular Internet-of-Things based use-case is revisited from the battery perspective. The objective is to extend the UAV's operation time using both laser-charging and accurate battery level estimation. Through a graph theory approach, the problem is solved optimally, and compared to benchmark trajectory approaches. Numerical results demonstrate the efficiency of this novel battery perspective for all path planning approaches. In contrast, we found that the energy perspective is very conservative and does not exploit optimally the available energy resources. Nevertheless, we propose a simple adjustment method to correct the energy perspective, by carefully evaluating the energy as a function of the UAV motion regimes. Finally, the impact of several parameters, such as turbulence and distance to charging source, is studied.

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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