arXiv:2410.15414cs.RO2024-10中稿 · 2024 IEEE Internat…被引 2

用可穿戴传感器实现大范围机器人灵巧操作,提升控制直观性。

An Agile Large-Workspace Teleoperation Interface Based on Human Arm Motion and Force Estimation

  • 通过惯性传感器与肌电臂带估计人体动作和力,实现自然操控
  • 7人完成420次测试,任务成功率与传统设备相当,耗时更短
  • 适合需要高灵活性的远程操作场景,如救援或工业巡检

遥操作能将人类的感知与认知传递至从属机器人以应对复杂任务,其接口的敏捷性与灵活性对映射人类意图至关重要。本文基于人体手臂运动与力估计,开发了一种灵活的大工作区遥操作接口。利用可穿戴传感器(惯性测量单元与表面肌电臂带),可捕捉人体手臂运动与受力信息,从而直观控制机器人操作。该可穿戴接口包含两部分控制原理:(1)手臂增量运动学,(2)抓握识别。此外,构建了具备时间同步机制的遥操作框架,支持实时应用。通过与通用力反馈设备Omega 7进行实验对比,共邀请7名受试者完成三类任务(自由移动、交接、抓取放置),每项任务重复10次,总计420次测试。客观评价采用任务完成时间和成功率,主观评价采用NASA任务负荷指数。结果表明,所提接口性能具有竞争力,且操作体验更优。

原文摘要 · Abstract (English)

Teleoperation can transfer human perception and cognition to a slave robot to cope with some complex tasks, in which the agility and flexibility of the interface play an important role in mapping human intention to the robot. In this paper, we developed an agile large-workspace teleoperation interface by estimating human arm behavior. Using the wearable sensor, namely the inertial measurement unit and surface electromyography armband, we can capture the human arm motion and force information, thereby intuitively controlling the manipulation of the robot. The control principle of our wearable interface includes two parts: (1) the arm incremental kinematics and (2) the grasping recognition. Moreover, we developed a teleoperation framework with a time synchronization mechanism for the real-time application. We conducted experimental comparisons with a versatile haptic device (Omega 7) to verify the effectiveness of our interface and framework. Seven subjects are invited to complete three different tasks: free motion, handover, and pick-and-place action (each task ten times), and the total number of tests is 420. Objectively, we used the task completion time and success rate to compare the performance of the two interfaces quantitatively. In addition, to quantify the operator experience, we used the NASA Task Load Index to assess their subjective feelings. The results showed that the proposed interface achieved a competitive performance with a better operating experience.

遥操作可穿戴设备手势控制人机交互

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