• Proceedings of the Korean Society of Computer Information Conference
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• 2014.07a
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• pp.53-54
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• 2014

본 논문에서는 시각 장애인들을 위해 유용한 정보를 제공해 주기 위한 촉각표시장치의 효율적인 정보 표시 방법에 대해 제안한다. 이 방법은 전방에 장애물이 있을 경우 이를 인지 및 촉각 정보로 변환하여 제공함으로 인해 사고를 미연에 예방하고자 한다. 이 방법은 저가의 스테레오 카메라를 이용하여 경제적인 비용으로 구성이 가능하다.

• Proceedings of the Korean Institute of Intelligent Systems Conference
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• 1993.06a
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• pp.1025-1028
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• 1993

In this paper, an intelligent control scheme with multi-stage fuzzy inference is developed for a myoelectric prosthesis to achieve natural control with tactile feedback based on fuzzy control strategies. Strain gauges and a potentiometer are added to the prosthesis for tactile feedback with a PWM motor driver developed to save the battery power. According to the multi-stage fuzzy inference, the prosthesis can determine the stiffness of the object and hold an object without injuring it, meanwhile, the hysteresis phenomenon is an 80196KC single-chip microcontroller to replace the original controller.

• Transactions of the Korean Society of Mechanical Engineers A
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• v.30 no.9 s.252
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• pp.1160-1165
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• 2006

In this paper, the 2-dimensional uniaxial force sensors array is introduced to detect the distributed force using fiber Bragg gratings. Uniaxial force transducer was designed to avoid the chirping and micro bending which degrade the performance of the sensor. The Brags wavelength shift of the sensor was estimated using the finite element analysis. Using this uniaxial force sensor, the uniaxial force sensors array $(3{\times}3)$ was fabricated, and the Performance of this sensors array was evaluated. The Presented sensors may has very simple configuration and its wiring is very simple compared with any other force sensors arrays.

• Journal of the Korean Society for Precision Engineering
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• v.21 no.9
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• pp.21-25
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• 2004

최근 국가의 10대 신성장 동력산업에 포함 되어 있는 RT(robot technology)는 향후 포스트 반도체산업의 중요한 산업으로 국내 경제를 활성화 시키는 원동력이 될 것으로 전망된다. 이와 더불어 향후에는 현재의 산업용 로봇이 아닌 감각과 지능을 가진 인간친화적인 로봇이 출현할 것으로 기대된다. 즉 주변 환경을 인지하여 정보를 획득하고 지능적 판단, 행위 및 상호작용을 통하여 인간을 지원하는 지능형 로봇은 인간과의 상호작용을 통하여 감성을 이해하며 서비스 제공, 인간의 동작이나 작업을 지원 그리고 위험작업 수행, 인간이 불가능한 작업을 대신 할 수 있을 것이다. (중략)

• International Journal of Advanced Culture Technology
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• v.7 no.1
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• pp.162-173
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• 2019

This study proposed 'Body Food,' an interactive tactile mat that provides interactive visual responses and induces physical activity in young children at the time of developing tactile and five senses, along with the touch of various stimuli. The product combines fiber materials and digital content to achieve a variety of visual and auditory responses in real time when children touch the fabric. User tests were conducted for 4-year-olds and the result was positive in terms of physical exercise and artistic experience, but quantitative testing is required to generalize it. In the future, we will complement physical and digital contents to realize more complete product.

• International journal of advanced smart convergence
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• v.12 no.3
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• pp.127-140
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• 2023

While tools exist for blind people to understand shapes, these are not commercially available nor affordable and often require the assistance of sighted people. Thus, we designed two low-cost grid-based tactile tools using toggle buttons (TogGrid) and cotton balls (CottonGrid). To assess the potential of these as an educational tool, we conducted a user study with 12 people with visual impairments where they were asked to understand and reproduce shapes under different conditions. Although CottonGrid is relatively cheap and easy to make, findings show that TogGrid was perceived to be better in terms of perceived easiness, task completion time, accuracy, and preference in general. Particularly, participants valued TogGrid for enabling them to identify and correct errors. Based on the findings, we provide implications for utilizing toggle buttons for designing educational instruments for learning and expressing shapes for blind people.

• Journal of Sensor Science and Technology
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• v.31 no.3
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• pp.145-150
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• 2022

The importance of flexible polymer-based pressure sensors is growing in fields like healthcare monitoring, tactile recognition, gesture recognition, human-machine interface, and robot skin. In particular, health monitoring and tactile devices require high sensor sensitivity. Researchers have worked on sensor material and structure to achieve high sensitivity. A simple and effective method has been to employ three-dimensional pressure sensors. Three-dimensional (3D) structures dramatically increase sensor sensitivity by achieving larger local deformations for the same pressure. In this paper, the performance, manufacturing method, material, and structure of high-sensitivity flexible pressure sensors based on 3D structures, are reviewed.

• Communications of the Korean Institute of Information Scientists and Engineers
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• v.30 no.8
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• pp.34-41
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• 2012

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2012.10a
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• pp.899-900
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• 2012

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2013.05a
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• pp.871-872
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• 2013