Platform for wireless pressure sensing with built-in battery and instant visualization

Cheong, Woon Hyung; Oh, Byungkook; Kim, Se Hee; Jang, Jiuk; Ji, Sangyoon; Lee, Seung‐Hee; Cheon, Jinwoo; Yoo, Seunghyup; Lee, Sang Young; Park, Jang Ung

doi:10.1016/j.nanoen.2019.05.047

Cited by 45 publications

(32 citation statements)

References 31 publications

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“…Multimodal and multifunctional tactile sensors developed to recognize human processes and the results of sensing data measured in real time, not just simply measuring human's motions or external forces, have attracted significant attention recently [126,127]. Optical tactile sensors enable interactive viewing through eyes, which is the most basic method for recognizing data.…”

Section: Human-machine Interface (Hmi)mentioning

confidence: 99%

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Motion Detection Using Tactile Sensors Based on Pressure-Sensitive Transistor Arrays

Jang

Jun

Seo

et al. 2020

Sensors

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In recent years, to develop more spontaneous and instant interfaces between a system and users, technology has evolved toward designing efficient and simple gesture recognition (GR) techniques. As a tool for acquiring human motion, a tactile sensor system, which converts the human touch signal into a single datum and executes a command by translating a bundle of data into a text language or triggering a preset sequence as a haptic motion, has been developed. The tactile sensor aims to collect comprehensive data on various motions, from the touch of a fingertip to large body movements. The sensor devices have different characteristics that are important for target applications. Furthermore, devices can be fabricated using various principles, and include piezoelectric, capacitive, piezoresistive, and field-effect transistor types, depending on the parameters to be achieved. Here, we introduce tactile sensors consisting of field-effect transistors (FETs). GR requires a process involving the acquisition of a large amount of data in an array rather than a single sensor, suggesting the importance of fabricating a tactile sensor as an array. In this case, an FET-type pressure sensor can exploit the advantages of active-matrix sensor arrays that allow high-array uniformity, high spatial contrast, and facile integration with electrical circuitry. We envision that tactile sensors based on FETs will be beneficial for GR as well as future applications, and these sensors will provide substantial opportunities for next-generation motion sensing systems.

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Section: Human-machine Interface (Hmi)mentioning

confidence: 99%

“…Minimization was achieved by simply using a built-in battery on an FET-based pressure sensor that consisted of a Si channel and an air dielectric. In addition, it made it possible to visualize the real-time output with a smartphone by processing with a wireless device [126].…”

Section: Human-machine Interface (Hmi)mentioning

confidence: 99%

Motion Detection Using Tactile Sensors Based on Pressure-Sensitive Transistor Arrays

Jang

Jun

Seo

et al. 2020

Sensors

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“…This approach allows a person to directly check information on various motions directly on a mobile device. In smartphone‐based wireless functions, as shown in Figure e, Park and coworkers fabricated a platform for wireless human‐interactive optoelectronics . This platform made it easy to identify sensing values that act in response to human actions through mobile devices, as shown in Figure f.…”

Section: Advanced Applications Of Smart Sensing Systems Based On Optomentioning

confidence: 99%

“…e,f) The schematic of wireless communicating systems with integrations of pressure sensor arrays and tactile‐interactive OLED display and their wireless communicating demonstration. Reproduced with permission . Copyright 2019, Elsevier Ltd.…”

Section: Advanced Applications Of Smart Sensing Systems Based On Optomentioning

confidence: 99%

Smart Sensing Systems Using Wearable Optoelectronics

Hwang

et al. 2020

Advanced Intelligent Systems

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A wearable smart sensing system is capable of continuously monitoring biometric information such as respiration, pulse, and body temperature while attached to an arbitrary surface on the user's body to be utilized freely during activities. Research conducted on new materials, fabrication processes, structure of electrodes, and wireless communication technologies has made constant progress in the development of smart sensing systems that use entirely wearable forms of devices to go beyond conventional devices that are based on intrinsically rigid components, such as silicon. Among various platforms that can be used in the development of smart sensing systems, optoelectronics provides innovative sensing functions (e.g., human–machine interfaces and phototherapy) that can be transferred from traditional healthcare to smart healthcare, such as point of care. Optoelectronics are light‐mediated displays that allow a light source to be controlled and a large light spectrum to be detected. Recently, this platform that uses smart and wearable optoelectronic sensing systems has become increasingly advanced to better help human beings treat their diseases through self‐healthcare. Herein, recent advanced technologies in materials, structures, and wireless platforms for smart sensors using wearable optoelectronics are reviewed.

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“…The digital output signal from MCU applies a voltage to the LED driver, which was directly connected to the OLED pixels, and it can turn these pixels on or off. After loading a custom‐designed program on MCU, MCU was integrated with the Bluetooth module to control the level of the operating current . This electric current controls the light intensity emitted from OLED pixels using a smartphone wirelessly.…”

mentioning

confidence: 99%