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arXiv 2010.10883eess.SYcs.SY
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固定翼飞机有限航程传感约束的安全性

Safety With Limited Range Sensing Constraints For Fixed Wing Aircraft

Eric Squires, Rohit Konda, Pietro Pierpaoli, Samuel Coogan, Magnus Egerstedt

摘要:

在本文中,我们讨论了如何使用一个障碍函数,是受运动学约束和有限的传感,以保证固定翼无人机(UAV)将保持安全的距离,尽管受到有限的范围传感约束。先前的工作已经表明,当可以一直感测到状态时,可以使用障碍函数来保证安全的系统操作。然而,在本文中,我们表明,这种结构并不能保证安全时,无人机受到有限的范围感测。为了解决这个问题,我们介绍了一种方法,用于构建一个新的障碍函数,容纳有限的传感范围从以前存在的障碍函数,可能不一定容纳有限的范围感测。我们表明,在适当的条件下,新构造的障碍函数,确保系统的安全性,即使在存在有限的范围感测。我们证明了本文的贡献,在20个固定翼飞机的情况下,由于所提出的算法,车辆能够保持彼此之间的安全距离,即使车辆受到有限的范围感测。

英文摘要:

In this paper we discuss how to use a barrier function that is subject to kinematic constraints and limited sensing in order to guarantee that fixed wing unmanned aerial vehicles (UAVs) will maintain safe distances from each other at all times despite being subject to limited range sensing constraints. Prior work has shown that a barrier function can be used to guarantee safe system operation when the state can be sensed at all times. However, in this paper we show that this construction does not guarantee safety when the UAVs are subject to limited range sensing. To resolve this issue, we introduce a method for constructing a new barrier function that accommodates limited sensing range from a previously existing barrier function that may not necessarily accommodate limited range sensing. We show that, under appropriate conditions, the newly constructed barrier function ensures system safety even in the presence of limited range sensing. We demonstrate the contribution of this paper in a scenario of 20 fixed wing aircraft, where because of the proposed algorithm, the vehicles are able to maintain safe distances from each other even though the vehicles are subject to limited range sensing.

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