arXiv:2503.08895cs.RO2025-03被引 1

机器人与人协作运输时,通过动态适应对方偏好提升效率。

Mutual Adaptation in Human-Robot Co-Transportation with Human Preference Uncertainty

  • 用概率模型捕捉人类偏好不确定性,动态调整行为。
  • 当人坚持己见且倔强度超阈值时,机器人改跟随,避免冲突。
  • 结合姿态优化,有效应对人类领路时的不确定行为,适合协作系统设计者。

在人机协同运输中,互适应可提升任务整体表现,融合机器人与人类对环境的理解。尽管人类建模有助于捕捉主观偏好,但仍面临两大挑战:(i) 人类偏好参数的不确定性;(ii) 平衡对双方都有利的适应策略。本文提出一个统一框架以解决这些问题,通过互适应提升任务性能。首先,不依赖固定参数,而是通过引入一系列不确定的人类偏好参数,建立人类选择的概率分布。在此基础上,提出随时间变化的倔强度度量与协调规划模型:若人类路径与机器人计划冲突且其倔强度超过阈值,机器人则切换为跟随人类;否则由机器人主导轨迹。最后,引入低层控制的姿态优化策略,缓解人类领路时的不确定性行为。通过20名参与者的人机反馈实验验证框架有效性,并在仿真中展示互适应与姿态优化显著提升任务表现。

原文摘要 · Abstract (English)

Mutual adaptation can enhance overall task performance in human-robot co-transportation by integrating both the robot's and the human's understanding of the environment. While human modeling helps capture humans' subjective preferences, two challenges persist: (i) the uncertainty of human preference parameters and (ii) the need to balance adaptation strategies that benefit both humans and robots. In this paper, we propose a unified framework to address these challenges and improve task performance through mutual adaptation. First, instead of relying on fixed parameters, we model a probability distribution of human choices by incorporating a range of uncertain human preference parameters. Building on this, we introduce a time-varying stubbornness measure and a coordinated planning model, which allows either the robot to lead the team's trajectory or, if a human's preferred path conflicts with the robot's plan and their stubbornness exceeds a threshold, the robot to transition to following the human. Finally, we introduce a pose optimization strategy for low-level control to mitigate the uncertain human behaviors when they are leading. To validate the framework, we design and perform a study with human feedback from twenty human participants. We then demonstrate, through simulations, the effectiveness of our models in enhancing task performance with mutual adaptation and pose optimization.

人机协作互适应路径规划

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