Soft Touch using Soft Pneumatic Actuator–Skin as a Wearable Haptic Feedback Device

Sonar, Harshal Arun; Huang, Jian-Lin; Paik, Jamie

doi:10.1002/aisy.202000168

Cited by 20 publications

(14 citation statements)

References 30 publications

(51 reference statements)

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“…Meanwhile, as the pneumatic haptic feedback is not needed during the interaction with the real object, there will be no conflict of both the tactile sensing and the monitoring of the pneumatic actuation at the same time. Compared with other works, ,, the as-fabricated Tactile + units are seamlessly integrated with air channel and sensor units, which ensure the consistency of spatial resolution.…”

Section: Resultsmentioning

confidence: 99%

Soft Modular Glove with Multimodal Sensing and Augmented Haptic Feedback Enabled by Materials’ Multifunctionalities

2022

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Immersive communications rely on smart perception based on diversified and augmented sensing and feedback technologies. However, the increasing of functional components also raises the issue of increased system complexity. Here, we propose a modular soft glove with multimodal sensing and feedback functions by exploring and utilizing the multiple properties of glove materials. With a single design of basic structure, the main functional unit possesses triboelectric-based sensing of static and dynamic contact, vibration, strain, and pneumatic actuation. Additionally, the same unit is also capable of offering pneumatic tactile haptic feedback and electroresistive thermal haptic feedback. Together with a machine learning algorithm, the proposed glove not only performs real-time detection of dexterous hand motion and direct feedback but also realizes intelligent object recognition and augmented feedback, which significantly enhance the communication and perception of more comprehensive information. In general, this glove utilizes a facile designed sensing and feedback device to achieve dual-way and multimodal communication among humans, machines, and the virtual world via smart perceptions.

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Section: Resultsmentioning

confidence: 99%

Soft Modular Glove with Multimodal Sensing and Augmented Haptic Feedback Enabled by Materials’ Multifunctionalities

2022

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“…Soft pneumatic actuators (SPA-skin Sonar et al, 2021 ) were placed on the participants’ forehead, nose, lips, tongue on the body midline, and on the thenar eminence of each thumb. Once the actuators had been attached and the participant was inside the scanner bore, a short thresholding procedure was carried out, whereby the pressure (KPa) of the actuators was adjusted to reach above-threshold subjective equality across body parts.…”

Section: Supplementary Resultsmentioning

confidence: 99%

Complex pattern of facial remapping in somatosensory cortex following congenital but not acquired hand loss

Root

Muret

Arribas

et al. 2022

eLife

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Cortical remapping after hand loss in the primary somatosensory cortex (S1) is thought to be predominantly dictated by cortical proximity, with adjacent body parts remapping into the deprived area. Traditionally, this remapping has been characterised by changes in the lip representation, which is assumed to be the immediate neighbour of the hand based on electrophysiological research in non-human primates. However, the orientation of facial somatotopy in humans is debated, with contrasting work reporting both an inverted and upright topography. We aimed to fill this gap in the S1 homunculus by investigating the topographic organisation of the face. Using both univariate and multivariate approaches we examined the extent of face-to-hand remapping in individuals with a congenital and acquired missing hand (hereafter one-handers and amputees, respectively), relative to two-handed controls. Participants were asked to move different facial parts (forehead, nose, lips, tongue) during fMRI scanning. We first confirmed an upright face organisation in all three groups, with the upper-face and not the lips bordering the hand area. We further found little evidence for remapping of both forehead and lips in amputees, with no significant relationship to the chronicity of their PLP. In contrast, we found converging evidence for a complex pattern of face remapping in congenital one-handers across multiple facial parts, where relative to controls, the location of the cortical neighbour - the forehead - is shown to shift away from the deprived hand area, which is subsequently more activated by the lips and the tongue. Together, our findings demonstrate that the face representation in humans is highly plastic, but that this plasticity is restricted by the developmental stage of input deprivation, rather than cortical proximity.

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“…However, it has not yet been investigated as a haptic presentation device in humans. Sonar et al devised a wearable skin-like interface that can reproduce the roughness, shape, and size of an object by using a small pneumatic actuator [ 28 ]. This system uses a soft pneumatic actuator (SPA)-based skin and a marker attached to the user’s finger; the SPA skin is then read by a camera to determine the position of the user’s finger.…”

Section: Related Workmentioning

confidence: 99%

Omnidirectional Haptic Stimulation System via Pneumatic Actuators for Presence Presentation

Yoshida¹,

Xie²,

Miyata³

2023

Sensors

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Recently, remote meetings and work-from-home have become more common, reducing the opportunities for face-to-face communication. To facilitate communication among remote workers, researchers have focused on virtual space technology and spatial augmented reality technology. Although these technologies can enhance immersiveness in collaborative work, they face the challenge of fostering a sense of physical contact. In this work, we aimed to foster a sense of presence through haptic stimulation using pneumatic actuators. Specifically, we developed a choker-type wearable device that presents various pressure patterns around the neck; the pattern presented depends on the message the device must convey. Various combinations of haptic presentation are achieved by pumping air to the multiple pneumatic actuators attached to the choker. In addition, we conducted experiments involving actuators of different shapes to optimize the haptic presentation. When linked with a smartphone, the proposed device can present pressure patterns to indicate incoming calls and notifications, to give warning about an obstacle that one who is texting might miss while walking, and to provide direction to a pedestrian. Furthermore, the device can be used in a wide range of applications, from those necessary in daily living to those that enhance one’s experience in the realm of entertainment. For example, haptic feedback that synchronizes with the presence of a singer or with the rhythm of a song one listens to or with a performer’s movements during a stage performance will immerse users in an enjoyable experience.

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Soft Touch using Soft Pneumatic Actuator–Skin as a Wearable Haptic Feedback Device

Cited by 20 publications

References 30 publications

Soft Modular Glove with Multimodal Sensing and Augmented Haptic Feedback Enabled by Materials’ Multifunctionalities

Soft Modular Glove with Multimodal Sensing and Augmented Haptic Feedback Enabled by Materials’ Multifunctionalities

Complex pattern of facial remapping in somatosensory cortex following congenital but not acquired hand loss

Omnidirectional Haptic Stimulation System via Pneumatic Actuators for Presence Presentation

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