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arXiv 2202.12419cs.RO
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KinoJGM:动态环境中高效精确的四旋翼轨迹生成和跟踪框架

KinoJGM: A framework for efficient and accurate quadrotor trajectory generation and tracking in dynamic environments

Imperial College London(伦敦帝国理工学院)

Yanran Wang, James O'Keeffe, Qiuchen Qian, David Boyle

摘要:

未映射的区域和空气动力学干扰使四旋翼的自主导航极具挑战性。为了安全有效地飞行,轨迹规划器和跟踪器必须能够实时导航具有不可预测的空气动力学效应的未知环境。当遇到诸如强风的空气动力学效应时,用于四旋翼轨迹规划和跟踪的大多数当前方法将不会试图偏离确定的计划,即使这是有风险的,希望任何空气动力学干扰可以被鲁棒控制器抵抗。提出了一种新的自主四旋翼飞行器轨迹规划与跟踪系统框架。我们提出了一个Kinodynamic跳跃空间搜索(Kino-JSS),以产生一个安全和有效的路线在未知的环境与空气动力学干扰。采用实时高斯过程对气动干扰的影响进行建模,然后将其与模型预测控制器相结合,以实现高效准确的轨迹优化和跟踪。我们证明了我们的系统,以提高在未知环境中的轨迹生成的效率高达75\%的情况下测试,与最近的国家的最先进的。我们还证明了我们的系统提高了在选定的环境中的跟踪精度与不可预测的空气动力学效应。

英文摘要:

Unmapped areas and aerodynamic disturbances render autonomous navigation with quadrotors extremely challenging. To fly safely and efficiently, trajectory planners and trackers must be able to navigate unknown environments with unpredictable aerodynamic effects in real-time. When encountering aerodynamic effects such as strong winds, most current approaches to quadrotor trajectory planning and tracking will not attempt to deviate from a determined plan, even if it is risky, in the hope that any aerodynamic disturbances can be resisted by a robust controller. This paper presents a novel systematic trajectory planning and tracking framework for autonomous quadrotors. We propose a Kinodynamic Jump Space Search (Kino-JSS) to generate a safe and efficient route in unknown environments with aerodynamic disturbances. A real-time Gaussian Process is employed to model the effects of aerodynamic disturbances, which we then integrate with a Model Predictive Controller to achieve efficient and accurate trajectory optimization and tracking. We demonstrate our system to improve the efficiency of trajectory generation in unknown environments by up to 75\% in the cases tested, compared with recent state-of-the-art. We also demonstrate that our system improves the accuracy of tracking in selected environments with unpredictable aerodynamic effects.

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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