A wireless haptic interface for programmable patterns of touch across large areas of the skin
A wireless haptic interface for programmable patterns of touch across large areas of the skin
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DOI：
10.1038/s41928-022-00765-3
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发表时间：
2022-05-23
影响因子：
34.3
通讯作者：
Rogers, John A.
中科院分区：
文献类型：
--
作者：
Jung, Yei Hwan;Yoo, Jae-Young;Rogers, John A.
一种重量轻、灵活的技术，可以在单个单元中或通过无线协调的方式在大面积皮肤上显示振动触觉图案，可用于传达道路导航的地图方向，将音乐曲目转换为触觉图案，并重建触觉，用于机器人假肢的反馈控制。触觉接口可用于为虚拟和增强现实体验添加触觉。柔软、灵活的设备在整个身体上提供时空触摸模式，可能具有全身覆盖，对于医学、运动和游戏中的一系列应用特别感兴趣。在这里，我们报告了这种类型的无线触觉接口，能够显示振动触觉模式在大面积的皮肤在单个单元或通过无线协调收集它们。这些系统的轻量化和灵活的设计结合了振动触觉致动器阵列，其密度为每平方厘米0.73个致动器，这超过了除了手和脸之外的几乎所有身体区域的皮肤上的机械感觉的两点辨别阈值。一系列振动感觉和信息内容可以通过智能设备的压敏触摸屏控制的时间依赖性模式和致动幅度实时传递到皮肤中的机械感受器，延迟可以忽略不计。我们表明，这项技术可用于传达导航指令，将音乐曲目转化为触觉模式，并支持感官替代反馈，以控制机器人假肢。
A lightweight, flexible technology that displays vibro-tactile patterns across large areas of the skin in single units or through a wirelessly coordinated collection of them can be used to convey map directions for road navigation, translate musical tracks into tactile patterns and reconstruct tactile sensations for feedback control of robotic prosthetics.Haptic interfaces can be used to add sensations of touch to virtual and augmented reality experiences. Soft, flexible devices that deliver spatiotemporal patterns of touch across the body, potentially with full-body coverage, are of particular interest for a range of applications in medicine, sports and gaming. Here we report a wireless haptic interface of this type, with the ability to display vibro-tactile patterns across large areas of the skin in single units or through a wirelessly coordinated collection of them. The lightweight and flexible designs of these systems incorporate arrays of vibro-haptic actuators at a density of 0.73 actuators per square centimetre, which exceeds the two-point discrimination threshold for mechanical sensation on the skin across nearly all the regions of the body except the hands and face. A range of vibrant sensations and information content can be passed to mechanoreceptors in the skin via time-dependent patterns and amplitudes of actuation controlled through the pressure-sensitive touchscreens of smart devices, in real-time with negligible latency. We show that this technology can be used to convey navigation instructions, to translate musical tracks into tactile patterns and to support sensory replacement feedback for the control of robotic prosthetics.