• 한국의상디자인학회지
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• 제12권2호
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• pp.119-129
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• 2010

오늘날 인간의 수명이 연장되고, 웰빙과 건강에 대한 관심이 증가됨에 따라서 언제 어디서나 건강을 모니터링 할 수 있는 건강 스마트 의류 시스템이 개발되고 있다. 이를 위하여 최근에는 생체신호의 모니터링이 가능하도록 디자인된 의류에 통합된 형태의 직물 전극이 개발되고 있다. 혁신적으로 의류 시스템에 통합되어 착용 가능한 니트, 우븐, 자수방식의 텍스타일 전극에 대한 다양한 연구가 개발 제시되고 있으며, 이의 일부는 상용화되어 있다. 이에 본 연구는 경위사의 일정한 직조제어 자동화 시스템이 가능한 컴퓨터 자카드 직기의 캐드(CAD) 직조디자인 방식을 통하여 생체신호 센싱 기능이 향상된 새로운 텍스타일 전극디자인을 연구하고자 하였다. 이를 위하여 본 연구에서는 기존 생체신호 센싱 전극의 개발 및 연구 동향, 비직물/전극 타입에 대한 단점과 장점에 대한 비교 분석을 이론적으로 살펴보고, 자카드 직조 직물 기반으로 심전도 센싱용 텍스타일 전극을 디자인하여 실험 연구하였다. 자카드 직조 방식의 심전도 센싱용 직물 전극은 전극 인터페이스 디자인 방식, 이중직물형 직조 디자인 방식, 사가공 등의 요인들을 고려하여 개발하였다. 본 연구에서 도출된 최종 자카드 직조 직물 기반의 텍스타일 전극은 스마트 의류에 통합시킨 텍스타일 전극 모듈로서 적용되여 향후 상용화 방안을 모색할 수 있다.

• 한국의류학회지
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• 제44권3호
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• pp.427-440
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• 2020

This study developed a vest prototype capable of monitoring body temperature using textile electrodes to prevent the sudden death of babies as well as to determine the quality of developed products by evaluating usability with commercial products. Based on the results of the 7th Size Korea Project, a basic pattern for a vest prototype was drafted by applying the average size of two-year-old Korean babies. Two prototypes were the detachable (VEST I) and integrated textile electrodes vest type (VEST II), which followed the same design. The materials were 100% cotton single jersey (SJ) and double jersey (DJ). Six experts evaluated the usability of the developed vests (VEST I & VEST II) and commercial product (VEST M). The single-layer woven textile electrode appeared to have a slightly higher conductivity than the double-layer one. There was no statistical difference in the body temperature sensing function between VEST I and VEST II. Finally, the superiority of the VEST I was verified through a comparison with commercial products (VEST M). The usability test suggested that a wearable smart clothing system of the integrated conductive textile could be further commercialized for bio-monitor applications in Ubiquitous-health care.

• 전기학회논문지
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• 제66권7호
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• pp.1141-1148
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• 2017

Generally, a thermistor made by sintering a metal oxide is widely used to measure the ambient temperature. This thermistor is widely used not only for industrial use but also for medical use because of its excellent sensitivity, durability, temperature change characteristics and low cost. In particular, the normal body temperature is 36.9 degrees relative to the armpit temperature, and it is most closely related to the circulating blood flow. Previous studies have shown that body temperature changes during biomechanical changes and body temperature changes by anomalous signs or illnesses. Therefore, in this study, we propose a Lock-In-Amp design to detect minute temperature changes of clothing and thermistor wired by a preacher as a method to regularly measure body temperature in daily life. Especially, it is designed to measure the minute resistance change of the thermistor according to body temperature change even in a low-cost microprocessor environment by using a micro-processor-based Lock-In-Amp, and a jacquard and the thermistor is arranged so as to be close to the side, so that the reference body temperature can be easily measured. The temperature was measured and stored in real time using short-range wireless communication for non - restraint temperature monitoring. A baby vest was made to verify its performance through temperature experiments for infants. The measurement of infant body temperature through the existing skin sensor or thermometer has limitations in monitoring infant body temperature for a long time without restriction. However, it can be overcome by using the embroidery fabric based micro temperature monitoring wireless monitoring device proposed in this study.

• 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.

• 한국의류학회지
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• 제31권2호
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• pp.292-299
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• 2007

Development of portable device measuring the vital sign continuously with no limit of time and space is absolutely prerequisite for the U-health care that grafts the ubiquitous concept into medical system. Accordingly, it requires to develop a garment style apparatus for measuring vital-sign that is easy to wear on for a long time period. This study suggests a method to improve the insulation of electric cable and the skin adhesion of electrode by integrating the electric conductive material to garment, in order to develop a garment apparatus for measuring ECG for U-health care. Results of the research are as follows; In order to provide the adjacent conductive yarns with insulation, braid with narrow woven end was interlaced using polyester yarn. As a result, the direct contact between electric conductive yarns was restrained, which would be interposed into pin-tuck structured cable. Washable silicone gel applied around the electrode made of electric conductive fabric improved the adhesion, which prevents electrodes from dropping off from the skin surface during body movement. ECG signals on the human subject were tested using the garment apparatus developed by the above method. And the result was that the clear QRS wave formation in the typical form of ECG could be measured in both conditions of still and moving state as well. The result of this study is expected to contribute for the production of U-health care related medical apparatus by accelerating the practical uses of the garment measuring vital sign at a reasonable price.

• Korean Chemical Engineering Research
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• 제58권3호
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• pp.466-473
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• 2020

직물집전체는 에너지 효율이 높은 담수화 방식인 축전식탈염(Capacitive deionization: CDI)시스템에서 유망한 전극 재료가 될 수 있다. 직물집전체의 매력적인 특징 중 하나는 인장강도가 강하다는 것인데, 기계적 강도가 약한 그라파이트 호일 전극의 대안이 될 수 있다. 또한 섬유적 특성으로 인하여 쉽게 형상을 만들 수 있고, 다공성 물질이라는 점과 섬유 간 공간은 수용성 매질의 흐름을 원활하게 해 준다. 본 연구에 사용된 섬유는 도전성 LM fiber와 carbon fiber를 사용한 방적사를 이용하여 직조 구조로 만들어졌으며, 인장강도는 319 MPa로 그라파이트 호일에 비해서 약 60 배 정도 더 강하다. 전극슬러리의 점도, 흡착전압, 공급액의 유량, 공급액의 농도를 변화시켜 가면서 염 제거효율을 측정하여 결과를 분석하였다. NaCl 200 mg/L, 20 ml/min, 흡착전압 1.5 V 조건에서, 단위 셀에서 43.9%, 100개의 셀을 적층한 모듈에서는 59.8%의 염 제거 효율을 각각 보였다. 단위 셀에서는 흡착전압이 1.3, 1.4, 1.5 V로 증가함에 따라 염 제거효율이 증가하다가 1.6과 1.7 V로 증가하면서 염 제거 효율은 감소하였다. 그러나 100 셀 적층 모듈에서는 1.5 V 이상의 전압에서도 염 제거효율이 완만한 증가세를 나타내었다. 공급액의 유량을 증가시켰을 때 염 제거율은 감소하였고, 또한 공급액의 농도를 증가시켰을 때에도 염 제거율은 감소하였다.