• 한국멀티미디어학회논문지
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• 제25권4호
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• pp.610-619
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• 2022

Recently, the market for masks has been growing due to air pollution, sun protection, pollen allergies and other reasons. In addition, the demand for masks has increased dramatically due to the new coronavirus from 2020, and masks are still one of the necessities of life. Although the reliance on masks is increasing, there are many inconveniences associated with wearing masks for long periods of time. At the same time, technology is developing rapidly, and the demand for smart wearable devices is increasing. Therefore, at the moment when the fourth industrial revolution is underway, combining people's common necessities with IoT technology to bring new convenient experiences to people is an important direction for future technology development and product development. In this study, smart masks were designed and implemented using IoT(Internet of Things) technology. The mask uses a microcomputer Adafruit circuit playground express, using the microcomputer's LED, optical sensors, can be in the dark place light, and through the temperature sensor real-time grasp of body temperature changes. If the body temperature rises above normal, the LED will turn "on" and activate the voice sensor to warn yourself and others around you.

• 한국의상디자인학회지
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• 제16권3호
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• pp.61-73
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• 2014

Urinary Incontinence is any leakage of urine against their will. It is not a life threatening illness but it causes negative effects both socially and psychologically. Based on many previous studies, 20-40% of adult female and 30% of men in their sixties have experienced symptoms of urinary incontinence. As the number of active aged people experiencing the symptoms increases, demand for specialized product is growing. The purpose of the study is to research the types and features of male disposable products for urinary incontinence on the market and to provide the basic data for improvement and development of better product. Products from 6 brands (Tena, Depend, Carnation, Keepers, Molimed, Abrimen) with high brand awareness both in online and offline were selected and analyzed. And product evaluation was carried out by male in their sixties with light symptom of urinary incontinence. The results are as follows. There are three types of male products for urinary incontinence: panties, diaper and pad. Among the 6 brands, the subject of analysis, only Depend from Yuhan Kimberly produces male panties while others make ones for unisex. There is no diaper product only for male, and Tena, Molimed, Abrimen have pad type products for male. Male panties from Depend emphasizes their design considering male's physical characteristics. Male pad is differentiated with female one by having different designs like triangular or pocket type which is more comforting to men. As a result of product evaluation, wearable panties similar to normal underwear were highly appreciated and satisfactory. Among various shapes of pads, 25cm long pad with wide width of front and narrow back was valued to be comfortable.

• 한국의류산업학회지
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• 제15권3호
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• pp.364-370
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• 2013

This research helps secure the safety of snow boarders in an activity that is currently recognized as a minor specific hobby. The research goal is to develop a new board wear product with intensified safety and activity through the development of a safe and convenient snowboard wear that is wearable in ordinary life. The participants consisted of 31 snowboard club members evaluated from January 12 to January 19 at Eden-valley Ski Resort and Phoenix-park Resort in Korea. The result are as follows. First, what domestic snowboard wear consumers consider design difference and brand recognition a significant priority in choosing snowboard wear versus the functionality or safety of clothes. Second, concerning the evaluation of the developed product, they recognize the necessity of safety gear; however, they demand the convenient use of a safety gear with a fixation that can be attached and detached. A unity-type board wear was developed that enables an attachment and detachment that reflects the evaluation results. In conclusion, this research showed various market possibility of board wear into sports casual wear to be able to make it a fashion product through different design and demand of mixing it with general wear rather than functionality or activity, though board wear is a professional sports wear.

• International Journal of Advanced Culture Technology
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• 제11권4호
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• pp.302-309
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• 2023

Wearable devices, attached to the human body, track and enhance users' activities, health, and communication. Therefore, considering ergonomic factors in product design is crucial. However, previous research has somewhat overlooked the importance of integrating ergonomic design elements into a broad spectrum of design factors. This study aims to examine the impact of physical attributes inherent in smart wristbands and smartwatches on the perceived functional value, specifically, perceived usefulness, ease of use, and fit. A survey was conducted among 289 US adults who had experience using smart wristbands or smartwatches. The collected data were analyzed using descriptive statistics, factor analysis, Cronbach's alpha, t-test, MANOVA, and regression analysis in SPSS version 29. The results showed that the shape of the front display significantly influenced perceived ease of use, and the product's weight had a substantial impact on both perceived ease of use and fit. Furthermore, distinct technical features on the front display had varied effects on perceived usefulness, ease of use, and fit. Notably, the presence of activity tracking, alarm, and calendar functionalities led to distinct differences in ease of use and fit. Features such as distance tracking, phone call, social media notifications, text messaging, and time display functions showed significant influences on the perception of fit. These findings provide insights into the physical values of smart wristbands and smartwatches as perceived by users.

• 한국콘텐츠학회논문지
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• 제22권1호
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• pp.172-187
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• 2022

경험경제 시대에 사용자 경험은 제품의 핵심가치로 부각되어 제품의 지속사용성과 시장의 장기적 생존 가능성에 영향을 주고 있다. 그러나 제품의 지속사용성에 영향을 주는 제품 사용자 경험 요소(PUX 요소)에 관한 연구는 여전히 부족하다. 따라서 본 연구의 목적은 일상생활에서 뮤직을 즐기기 위해 많이 사용되는 웨어러블 제품인 무선이어폰의 PUX 요소와 지속적 사용 의도 간의 연관성을 알아보고자 한다. 연구는 이런 연관성이 유형별 제품에서 나타내는 차별성을 통찰하기 위해 3가지 유형의 무선이어폰을 연구대상 제품으로 한다. 연구 과정은 1)"무선이어폰의 시장 현황 조사", 2)"사용자 조사 및 PUX 요소 도출", 3)"PUX 요소와 지속적 사용 의도의 연관성 분석", 4)"분석 결과 도출 및 경험 디자인 방향성 제시" 4단계로 이루어졌다. 이런 연구 과정을 통해 무선이어폰의 유형에 따라 제품 지속사용성에 영향을 주는 핵심 PUX 요소군집이 서로 다르다는 것을 알 수 있었다. 핵심 PUX 요소군집의 차별성 결과를 바탕으로 제품 지속사용성을 향상하기 위한 경험 디자인 방향을 제시하였다.

• 마이크로전자및패키징학회지
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• 제23권4호
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• pp.31-34
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• 2016

System In Package (SiP) is getting popular and momentum for the recent wearable, IoT and connectivity application apart from mobile phone. This is driven by market demands of cost competitive, lighter and smaller/thinner and higher performance. As one of many semiconducting assembly products, Leadframe product has been widely used for low cost solution, light/ small and thin form factor. But It has not been applied for SiP although Leadframe product has many advantages in cost, size and reliability performance. SiP is mostly based on laminate substrate and technically difficult on Leadframe substrate because of a limitation in SMT performance. In this paper, Leadframe based SiP product has been evaluated about key technical challenges in SMT performance and electrical shield technology. Mostly Leadframe is considered not available to apply EMI shield because of tie-bar around package edge. In order to overcome two major challenges, connection bars were deployed properly for SMT pad to pad and additional back-side etching was implemented after molding process to achieve electrical isolation from outer shield coating. This product was confirmed assembly workability as well as reliability.

• 한국콘텐츠학회논문지
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• 제15권9호
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• pp.37-46
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• 2015

오늘날 웨어러블 디바이스가 각광을 받으면서, 스마트 워치는 웨어러블 시장을 이끌어갈 디바이스로 주목받고 있다. 하지만 이러한 스마트워치는 많은 기업의 투자와 소비자의 관심에도 불구하고 스마트폰을 보조하는 도구에 불과하다는 인식을 받고 있다. 따라서 본 연구에서는 스마트워치가 폭발적인 성장세를 보이지 못하는 이유 중 스마트워치의 작은 화면이 주는 불편함에 초점을 맞추어 연구를 진행하고자 한다. 먼저 스마트 워치의 작은 화면을 극복하기 위해 필요한 이론적 배경에 대해 스마트 기기연동, 프로젝터 기술, 플렉서블 디스플레이 3가지로 나누어 사용자의 실효성 측면에서 제시하였다. 그 후 이론적 배경을 토대로 스마트워치가 나아가야 할 방향에 대해서 크게 2가지로 나누어 설명하고 있다. 먼저 '디스플레이'에 관해서 경계 없는 디스플레이와 사물 디스플레이를 제시하고 있으며, '인터랙션' 방법에 관하여 인터랙션 방법의 진화, 2가지 인터랙션의 결합 방법, 인터랙션 디자인의 변화를 제시하고 있다. 본 연구가 제시한 방법은 미래에 스마트워치가 웨어러블 시장에서 주요 상품으로 자리 매김하는데 도움이 될 것이다.

• 한국의류산업학회지
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• 제21권2호
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• pp.133-140
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• 2019

This study developed smart fashion prototypes that provide utilitarian functionality by combining Fashion and Electronics regarding the IT focused convergence tendency in modern industries. A convergence R&D workshop was performed by Fashion design majors and Engineering majors for the study. As a result, 5 functional smart fashion prototypes were developed and the outline of each prototype are as follows. The $1^{st}$ prototype, 'Hidden Camera Detecting Coat' focused on gender-related crimes. The coat uses infrared lighting and LED technologies to provide a function to detect hidden cameras in suspicious public spaces such as toilets. The $2^{nd}$ prototype, 'Heating-massage Suit' targeted patients with musculoskeletal system difficulties. The suit uses heating and vibration technologies to provide a heating massage treatment for patients with ongoing difficulties in their daily lives. The $3^{rd}$ prototype is an air-bag jacket to prevent sexual molestation on public transportation. The jacket extends its volume through pressure sensing, air compressing, motors and 3D-printing technology to secure the wearer's personal preventive space between the user's body and others. The $4^{th}$ prototype is a town wear for people suffering from synesthesia. People with synesthesia inadvertently see colors when exposed to certain sounds. This town wear uses sound sensing, air compressing, motors and 3D-printing technology to provide sound prevention and a comfortable sound playing function. The $5^{th}$ prototype is a set of a vest and a gloves for visually impaired people. The vest and gloves uses DMS, voice playing, vibration technology to provide distance measuring and warning functions.

• 한국기계가공학회지
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• 제11권5호
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• pp.35-41
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• 2012

Liquified hydrogen peroxide as a monopropellant is drawing an attention as a power generating energy source for a machine requiring simple and light weight structure. The liquified hydrogen peroxide is attracted due to its outstanding applicability because it doesn't require an oxidizer and discharge a hazardous product. For the further industrial applications, however, a feasibility study should be carried out carefully in the aspect of the specific power density. In this study, a prototype of vane motor driven by the liquified hydrogen peroxide with high density of upper 95% was developed and its performance characteristic such as a specific power density was estimated via measuring pressure and rotation speed of the vane motor. The specific power density obtained by numerical simulation using FSI analysis supported by experimental results was up to $0.02kW/kg_{f}$, which reaches at the level of the latest developed fuel cell.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제5권10호
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• pp.1751-1768
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• 2011

Falls are one of the most concerned accidents for elderly people and often result in serious physical and psychological consequences. Many researchers have studied fall detection techniques in various domain, however none released to a commercial product satisfying user requirements. We present a systematic modeling and evaluating procedure for best classification performance and then do experiments for comparing the performance of six procedures to get a statistical classifier based wrist-type fall detector to prevent dangerous consequences from falls. Even though the wrist may be the most difficult measurement location on the body to discern a fall event, the proposed feature deduction process and fall classification procedures shows positive results by using data sets of fall and general activity as two classes.