手部外骨骼融合力、压感与温感反馈,提升远程操作真实感。
MFE: A Multimodal Hand Exoskeleton with Interactive Force, Pressure and Thermo-haptic Feedback
- 设计20自由度手外骨骼,集成力、压、温三模态反馈机制
- 可产生3.5-8.1N力、最高2.47kPa压力、10-55℃温变
- 在遥操作中显著增强用户对柔性物体与温度差异的感知能力
虚拟现实与机器人遥操作的发展对触觉信息传递提出更高要求。现有设备多仅提供单一触觉反馈,难以实现丰富多模态感知。为此,我们提出多模态触觉外骨骼(MFE),具备20个自由度以捕捉手部姿态。其主动机构可在手指静止位生成3.5–8.1 N的推拉力,实现对可变形物体的真实交互。指尖配备基于电渗原理的平面致动器,可提供压力与振动刺激,最大接触压力达2.47 kPa。热反馈方面,集成热电制冷/制热模块,支持10–55 ℃温度变化。通过将MFE集成至X-Arm 6与Inspire Hand遥操作平台,在用户实验中,参与者成功识别并操作可变形物体,区分不同温度远端对象。结果表明,MFE显著提升了遥操作系统的态势感知、可用性与透明度。
原文摘要 · Abstract (English)
Recent advancements in virtual reality and robotic teleoperation have greatly increased the variety of haptic information that must be conveyed to users. While existing haptic devices typically provide unimodal feedback to enhance situational awareness, a gap remains in their ability to deliver rich, multimodal sensory feedback encompassing force, pressure, and thermal sensations. To address this limitation, we present the Multimodal Feedback Exoskeleton (MFE), a hand exoskeleton designed to deliver hybrid haptic feedback. The MFE features 20 degrees of freedom for capturing hand pose. For force feedback, it employs an active mechanism capable of generating 3.5-8.1 N of pushing and pulling forces at the fingers' resting pose, enabling realistic interaction with deformable objects. The fingertips are equipped with flat actuators based on the electro-osmotic principle, providing pressure and vibration stimuli and achieving up to 2.47 kPa of contact pressure to render tactile sensations. For thermal feedback, the MFE integrates thermoelectric heat pumps capable of rendering temperatures from 10 to 55 degrees Celsius. We validated the MFE by integrating it into a robotic teleoperation system using the X-Arm 6 and Inspire Hand manipulator. In user studies, participants successfully recognized and manipulated deformable objects and differentiated remote objects with varying temperatures. These results demonstrate that the MFE enhances situational awareness, as well as the usability and transparency of robotic teleoperation systems.
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