• 한국정보시스템학회지:정보시스템연구
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• 제29권1호
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• pp.201-224
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• 2020

Purpose The study focuses on the physical activity behavior change effect of smart wristband, which is the most popular type of fitness tracker nowadays. The purpose of the research is to investigate how people's workout behavior may change after wearing a smart band and examine what kind of role persuasive design plays in behavior change. Design/Methodology/Approach This research employed an experimental study to examine whether the user's workout behaviors changed after using wristband from the "Behavior Wizard" perspective. A representative smart wristband from a major vendor was selected as the objects of experimental study. In the experiment, by comparing users' workout behavior before and after using the wristband, behavior changes of all the experiment participants were classified into one of the 15 behavior change types. Users perceived persuasive design characteristics were measured and group differences were tested among different behavior change groups. Findings This research found that nearly half of the participants changed their workout behavior while half retained their workout status or no exercise status. Half of the participants who did not do exercise in their spare time started walking in the experiment. Results also showed that participants who started working out perceived higher levels of persuasive design devised into the smart band than participants who preserved no exercise status, except for facilitation and reward strategies. Participants who retained workout and those who increased workout frequency perceived no difference in smart band persuasive design.

• 패션비즈니스
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• 제22권4호
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• pp.118-129
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• 2018

The purpose of this study is to develop ECG electrode materials for the heart rate monitoring smart band, a smart device used for ECG and heart rate measurement. The purpose of the evaluation is to assess properties and conductivity of electrodes of the existing heart rate monitoring smart band, and to determine suitability through a representative conductive sample. Because level of thickness does not differ significantly from value of conductive specimen from thickness of the smart band, it can be used as a conductive electrode. Surface conductivity of conductive samples and smart bands, is expected to be available as electrodes except for conductive film. Also, since the knit have conductivity only in the metal processing layer, it is necessary to use electrodes on the part of the metal processing layer that is conductive when applying the knit. Tensile strength and electrical conductivity of the tensile were generally revealed to have a tendency. Thickness of the specimen that can be used as an electrode for the smart band is suitable for all samples, electrical resistance, conductive woven, conductive knit, and conductive cord. In the case of conductive cord, however, the electrode attached to the human body will not conform to the flat shape of the electrode attached to the human body. Therefore, the conductive woven and the conductive knit will be available as an electrode.

• 한국BIM학회 논문집
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• 제11권3호
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• pp.75-90
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• 2021

A smart home system improves the elderly's quality of life by monitoring and analyzing their movements and health conditions with better health-care and social support services. Therefore, there has been an effort to adopt a smart home system for the independently living elderly. However, to the best of our knowledge, no study has investigated the usability of a smart home system on actual independently living elderly housing in long-term settings. Thus, this study aims to demonstrate the usability of a smart home system on independently living elders in living lab conditions. The BLE smart band and the BLE receiver were chosen for the smart home system to monitor the movement of the participants in their homes as well as to monitor the heart rates, step counts, sleep index. Nine independent living elderly from the senior welfare center in Kimjae participated in this living lab demonstration experiment for ten months. This demonstration experiment confirmed the effectiveness of low-cost and easily adoptable IoT-based BLE sensor sets on independent living elders and discussed the troubles and limitations of the experiment. By grasping the pros and cons of IoT-based BLE sensor sets, this study seeks to improve the accessibility and usability of smart home systems for the elderly population in independent living arrangements.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2019년도 춘계학술대회
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• pp.537-539
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• 2019

본 연구에서는 헬스케어의 주력 디바이스로 이용되고 있는 스마트밴드를 이용하여 아로마 요법에 따른 수면의 패턴을 분석하고자 한다. 우선, 수면장애를 겪고 있는 학생들을 선별한 후, 수면의 질을 높여줄 에센셜 오일을 블랜딩하여 적용하였다. 스마트밴드와 연동된 앱을 활용하여 수면 패턴을 객관적으로 분석한 후 아로마요법이 수면의 질에 어떤 영향을 주는지 확인한다.

• 디지털산업정보학회논문지
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• 제11권1호
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• pp.19-25
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• 2015

In this time, as an industrial society developed to a welfare society, more and more people want their quality of lives upgraded and specially customized service by mass production/mass consumption. And it leads to an increase of requiring service. There're active developments and studies on various IT equipment as the requirement made IT devices used in service. In this paper, we try to design and realize radio paging DID by using smart device to be used as a receiver of a radio pager which is broadly used at face to face service. Firstly, we used MCU to design and implement Wireless Calling Gateway which change radio calling signal of ISM band to smart device. A receiver of wireless caller used original receiver module. Also it used bluetooth module to communicate with smart device. It was possible to have satisfactory communication since radio paging signal converter and smart device were linked in 3M. Secondly, to indicate various paging information delivered from a radio pager, we realized DID application program by using Smart PAD. As a result, we could indicate various information compared to an original receiver which only could indicate letters or numeric data. Secondly, we implemented the DID app for wireless calls that can display a variety of information sent from a wireless pager. Was implemented using the Smart Pad. As a result, it is shown that can display a variety of information than the existing receiver.

• 한국전자통신학회논문지
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• 제13권4호
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• pp.865-874
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• 2018

본 논문은 스마트 베개와 스마트 기저귀에 관한 것이다. 스마트 베개는 아기 울음소리의 주파수를 분석하여 나온 디지털 값을 대역 통과 필터에 적용한다. 만약 300-600Hz 사이라면 백색 소음을 출력한다. 스마트 기저귀는 아기가 배변 시 기저귀 외부의 온도가 $29^{\circ}C$이상, 습도가 99% 이상일 경우에 스마트폰에 경고 알람을 울린다. 또한 스마트 기저귀는 아기가 누워있는 위치를 감지하여 뒤집혔을 시 스마트폰에 경고 알람을 울려 아기의 질식사를 예방한다.

• 전기전자학회논문지
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• 제27권1호
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• pp.71-77
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• 2023

본 논문에서는 실내 무선랜 환경에서 인접한 동작 주파수 스펙트럼을 가진 외부 간섭신호를 차단하기 위해 Wi-Fi 6E 시스템에 적용할 수 있는 이중대역 차단 주파수 선택표면을 설계하였다. 제안한 주파수 선택적 표면 구조는 2.4GHz 대역과 6GHz 대역에서 주파수 차단 특성을 가지며, 변형된 교차 쌍극자 구조와 단위 구조간 서로 맞물린 퍼즐 형태를 통해 구현되었다. 제안한 구조는 입사각과 편파에 대해 안정적인 주파수 응답 특성을 갖도록 설계되었으며, 제작 및 실험으로부터 0°~45°의 입사파에 대해 시뮬레이션에서 얻은 결과와 잘 일치하는 것을 확인하였다.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2015년도 추계학술대회
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• pp.381-383
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• 2015

현대 사회는 노인 인구가 증가하면서 고령화 시대로 진입하였으며, 이른바 65세 이상인 실버세대를 위한 노인의료비, 노인 케어 등의 사회적 비용이 증가하고 있다. 현재 정부나 각종 기업에서 노인 건강을 위해 정보기술을 활용한 다양한 서비스가 제공되고 있음에도 불구하고 여러 가지 한계가 지적되어 활성화가 저해되고 있는 실정이다. 본 연구에서는 사용자의 욕구를 반영한 스마트 헬스 케어 서비스 중에서도 가장 보편화되고 있는 스마트 헬스 밴드의 비즈니스 모델을 개발하고자 한다. 이를 위해, 스마트 헬스 밴드 및 이와 관련한 기술적 기능에 대해 살펴보고, 비즈니스 모델에 대한 구성 요소 및 각 내용에 대해 살펴보고자 한다.

• 한국전자통신학회논문지
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• 제12권4호
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• pp.715-724
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• 2017

현재 각종 스마트 기기가 발전되고 최근엔 인간의 신체에 부착되어 스마트 컴퓨팅이 가능한 Wearable Device 가 다양하게 연구되고 있다. 또한 인간의 환경적, 유전적 요인으로 인해 기미, 여드름, 아토피, 두피 트러블 등의 피부 질환들이 지속적으로 증가하고 있어 치료를 위한 개인의 의료 부담이 증가하고 있는 실정이다. 이에 따라 피부 미용과 관련된 다양한 피부 트러블을 분석하고, 관리할 수 있는 높은 휴대성과 진단 정확성을 가진 스마트폰이나 태블릿 기반의 스마트 헬스케어 이미징 시스템 개발의 필요성이 대두되고 있다. 이에 본 논문에서는 IoT를 기반으로 수분 및 UV 센서를 활용한 Wearable Device인 스마트 미밴드 H/W 및 센서정보 모니터링 S/W를 결합한 통합 시스템을 제안한다.

• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 2000년도 춘계학술대회논문집
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• pp.1273-1279
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• 2000

A new concept of piezoelectric smart panels for noise reduction in wide band frequencies is proposed and their possibility is experimentally investigated. The proposed panels are based on active and passive methods. They use piezoelectric smart structure technology for active noise reduction at low band frequencies and passive sound absorbing materials for mid-range of noise frequencies. To prove the concept of piezoelectric smart panels, an acoustic measurement experiment was performed. The smart panels exhibit a good noise reduction in middle and high frequency ranges due to the mass effects of absorbing materials or/and the air gap. The use of piezoelectric smart panel renders noise reduction large at resonance frequency. Another concept of smart panel that uses piezoelectric damping is experimentally investigated. Since piezoelectric dampings can reduce vibration and noise at resonance frequencies with simple shunt circuit, they have merits in terms of economy and simplicity. Dissipated energy method(DEM) is adopted to tune the shunt circuit precisely in piezoelectric dampings. Noise reduction at multiple resonance frequencies is demonstrated.