arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2005.03652cs.ROcs.HC
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共享控制机器人的主动意图消歧

Active Intent Disambiguation for Shared Control Robots

Northwestern University(西北大学);Shirley Ryan AbilityLab(雪莉·瑞安能力实验室)

Deepak E. Gopinath, Brenna D. Argall

摘要:

辅助共享控制机器人有可能改变数百万患有严重运动障碍的人的生活。共享控制机器人的有用性通常依赖于潜在的自主能力来推断用户的需求和意图,并且明确地这样做的能力通常是自信和准确地提供适当帮助的限制因素。本文的贡献有四个方面。首先,我们介绍了通过控制模式选择的意图消歧的想法,并提出了同样的数学形式主义。其次,我们开发了一种控制模式选择算法,该算法选择的控制模式中,用户发起的运动有助于自主性,最大限度地消除用户的意图。第三,我们提出了一个试点研究与八个主题,以评估消歧算法的有效性。我们的研究结果表明,消歧系统(a)有助于显着减少任务的努力,按下按钮的数量来衡量,(b)是更有限的控制界面和更复杂的任务更大的效用。我们还观察到(c)受试者表现出广泛的消歧请求行为,其共同点是在执行早期集中请求。作为我们的最后一个贡献,我们引入了一种新的领域理论的意图推理的方法,灵感来自动态场理论,与消歧计划。

英文摘要:

Assistive shared-control robots have the potential to transform the lives of millions of people afflicted with severe motor impairments. The usefulness of shared-control robots typically relies on the underlying autonomy's ability to infer the user's needs and intentions, and the ability to do so unambiguously is often a limiting factor for providing appropriate assistance confidently and accurately. The contributions of this paper are four-fold. First, we introduce the idea of intent disambiguation via control mode selection, and present a mathematical formalism for the same. Second, we develop a control mode selection algorithm which selects the control mode in which the user-initiated motion helps the autonomy to maximally disambiguate user intent. Third, we present a pilot study with eight subjects to evaluate the efficacy of the disambiguation algorithm. Our results suggest that the disambiguation system (a) helps to significantly reduce task effort, as measured by number of button presses, and (b) is of greater utility for more limited control interfaces and more complex tasks. We also observe that (c) subjects demonstrated a wide range of disambiguation request behaviors, with the common thread of concentrating requests early in the execution. As our last contribution, we introduce a novel field-theoretic approach to intent inference inspired by dynamic field theory that works in tandem with the disambiguation scheme.

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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