• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2021년도 춘계학술대회
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• pp.423-424
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• 2021

이 논문에서는 수면 환경을 감지하는 센서들로부터 데이터를 수집하고 이를 바탕으로 수면 환경을 최적으로 조절하여 숙면을 취할 수 있도록 도와주는 시스템을 제안한다. 수면 환경 분석은 로드셀을 통한 뒤척임 감지에 의한 수면 단계 판단을 기본으로 하고 온도, 습도, 조도 등의 데이터를 바탕으로 온열 장치, 가습기, 블라인드 등을 제어하여 숙면을 취할 수 있는 환경을 조성한다. 수면 상태에 따른 수면 환경 제어는 기상하기 쉬운 수면 상태를 유도함으로써 기상 시에 피로감을 줄일 수 있다.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2021년도 춘계학술대회
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• pp.425-427
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• 2021

현대 사회에 들어서면서 사회생활과 더불어 일상생활의 변화로 인해 현대인들이 가지는 수면 부족과 불만족스러운 수면 환경으로 전 세계에서 수면 부족국가 최하위, 수면 부족이라고 생각되는 국가 최하위를 기록하고 있다. 수면 부족을 이끄는 원인 중 2위를 차지하는 '수면 환경'을 개선할 수 있는 '아두이노를 활용한 수면 베개'에 대한 내용이다. 수면에 들기 전 몇 분 그 잠시의 시간이 수면의 질을 좌우할 수 있으며, 수면의 질은 하루 생활의 만족감을 결정한다. 아두이노를 활용하여 다양한 기능을 통해 수면의 질을 높일 수 있다. 아두이노를 통해 수면자의 호흡 측정, 조명, 블루투스 스피커를 조절하여 수면자의 수면 환경을 조성하고 자신에게 맞는 환경을 직접 만들 수 있다. 이를 통해 현대인의 수면 부족을 개선하고 더 윤택한 삶을 가질 수 있을 것이다.

• 한국정보기술응용학회:학술대회논문집
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• 한국정보기술응용학회 2005년도 6th 2005 International Conference on Computers, Communications and System
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• pp.243-246
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• 2005

Recent ubiquitous computing environments increasingly impact on our lives using the current technologies of sensor network and ubiquitous services. In this paper, we propose ubiquitous architectural framework for ubiquitous sleep aid service(UbiSAS) in the subset of ubiquitous computing for refreshing of human's sleep. And we examine technical feasibility. Human can recover his health through refreshing sleep from fatigue. Ubiquitous architectural framework for UbiSAS in digital home offers agreeable sleeping environment and improves recovery from fatigue. So we present new concept of ubiquitous architectural framework dissolving stress. Specially, we apply context to context-aware framework module. This context is transferred to context adaptive inference engine which has service invocation function in intelligent agent module. Ubiquitous architectural framework for UbiSAS using context adaptive rule inference engine without user intervention is technical issue. That is to say, we should take sleep comfortably during our sleeping. And sensed information during sleeping is changed to context-aware information. This presents significant information in context adaptive rule inference engine for UbiSAS. This information includes all sleeping state during sleeping in context-aware computing technique. So we propose more effective and most suitable ubiquitous architectural framework using context adaptive rule inference engine for refreshing sleep in this paper.

• 한국콘텐츠학회논문지
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• 제18권2호
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• pp.378-387
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• 2018

최근 4차 산업 혁명이 도래하면서 헬스케어 서비스의 분야가 다시금 주목받고 있다. 그에 따라, 스마트제품들을 통한 개인 맞춤화 된 의료 시스템이 다양한 형태로 등장하고 있다. 웨어러블 테크 및 센서 시스템의 활용으로 타인의 도움 없이 스스로 언제 어디서든지 건강관리와 모니터링이 가능해졌다. 하지만, 임산부를 위한 헬스케어 서비스는 매우 부족한 실정이다. 저출산으로 인하여 산부인과 수도 격감하면서 몸이 불편한 임산부를 둘러싼 환경은 더욱 열악해지고 있다. 임산부는 임신으로 인하여 편안한 수면 세를 취하기 힘들다. 소음, 온도, 습도 등 다양한 환경적 요인이, 더불어 임산부 수면의 질을 저하시켜 행복한 태교를 저해한다. 본 연구는 이러한 문제점을 해결하고자 임산부의 건강을 위해 좋은 수면 자세의 정보와 향상된 수면 환경을 제공하여 수면관리가 가능한 UI 디자인 개발에 목적이 있다. 이를 통해 4차 산업시대의 센서 기술을 적용하여 임산부의 수면의 질과 삶의 질을 극대화 시켜 줄 것을 기대한다.

• 한국생활과학회지
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• 제7권1호
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• pp.183-195
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• 1998

The purpose of this study is to investigate the effect of Ondol on the bedclimate, microclimate and physiological responses of occupants. Four healthy female subjects slept for seven hours in thermal environment of detached house and apartment respectively. Their bedclimate, microclimate, skin temperature, weight loss of body, weight of bedcloth and sleepwear, body movement and subjective sensation were measureed for this study. The results were as follows; The differences of bedclimate, microclimate, skin temperature were significant according to season and residence styles. The occupants of the detached house showed higher temperature and humidity inside quilt and clothes than those of the apartment did on apartment environment. The occupants of the detached house showed higher weight losses of body, heavier weights of quilt than those of the apartment did on apartment environment in the spring, autumn and winter, lower weight losses of mattress in the autumn and winter. The occupants of the detached house moved more than those of the apartment on apartment environment when sleeping. The occupants of the detached house felt higher thermal sensation and lower humidity sensation than those of the apartment did. The occupants of the detached house felt more comfortable than those of the apartment on detached house environment, while the occupants of the apartment felt more comfortable than those of the detached house on apartment environment. The thermal environments of the apartment and the detached house had an effect on the bedclimates, microclimates of occupants and therefore the physiological responses such as skin temperature, rectal temperature, weight loss of body, perspiration and subjective sensation are different during sleeping according to their residential styles on the same environment.

• Asian-Australasian Journal of Animal Sciences
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• 제31권11호
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• pp.1828-1832
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• 2018

Objective: Environmental change is one of the stressful events in livestock production. Change in environment disturbs cow behavior and cows require several days to regain a stable behavioral pattern. Sleeping posture (SP) and lying posture (LP) have been used as indicators for animal that are relaxed and well-acclimated to their environment. The aim of this study was to examine the time required by Japanese black cows for stabilization of SP and LP after moving into new environment. Methods: Seven pregnant Japanese black cows were used. Cows were moved into new tie-stall shed and their sleeping and lying posture measured 17 times during 35 experimental days. Both SP and LP were detected by accelerometer fixed on middle occipital and hip-cross, respectively. Daily total time, frequency, and average bout of both SP and LP were calculated. Results: Daily SP time was the shortest on day 1 and increased to the highest on day 3. It then decreased until day 9, after that stabilized about 65 min/d till the end of experiment. Daily LP time changed in same manner as daily SP time. The average SP bout was the longest on day 1, and then decreased to stable level on day 7. On the other hand, the average LP bout was the shortest on day 1, and it increased to stable level on day 7. Conclusion: These results showed that pregnant Japanese black cows needed 1 week to stabilize their SP. However, there were different change patterns between the average SP and LP bout, even though the change pattern of daily SP and LP time were similar.

• 한국전자통신학회논문지
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• 제8권2호
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• pp.345-353
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• 2013

본 연구는 대학생의 스트레스가 수면장애에 미치는 영향을 구명하고자 광주 전남에 소재한 대학생 342명을 최종분석 대상으로 편의표본추출에 의해 시행되었다. 수면장애는 가족과 떨어져 자취하는 대학생이 많았고(p=0.042), 주거 환경에서 발생하는 소음 역시 수면장애와 연관성이 높았다(p=0.002). 또한, 대학생들이 학교생활에서 만족을 갖지 못하는 경우(p=0.007), 건강이 보통 이하 정도로 불량할 경우 수면장애가 많았다(p=0.010). 생활 스트레스 역시 수면장애와 관련이 있었고(p=0.004), 장래문제와 관련된 스트레스(p=0.002), 가치관과 관련된 스트레스가 유의한 관련이 있었다(p=0.001). 자취생활, 주거 소음, 학교생활의 불만족, 불량한 건강, 생활 스트레스, 특히 장래 문제 및 가치관과 관련된 스트레스가 수면장애와 관련이 있었다. 따라서, 대학생의 수면장애를 유발하는 스트레스에 대해 다양한 요인과의 분석을 통한 연구가 추가로 필요할 것으로 생각되었다.

• 대한가정학회지
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• 제30권1호
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• pp.25-34
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• 1992

The main purpose of the study were to investigate the agreeability on the use of the bedclothes of Korea. For this purpose, a questionaire was sent to 600 mothers of students at middle school, high school and university in Seoul, Daejeon, Kwangju. The results were as follows; 1. The type of house greatly influences the style of sleeping and most families have a traditional Korean style sleeping environment. 2. Management of bedclothes were important on comfort sleeping of the subjects. 3. The type of sleepwear, Subjects shown a greater preference for Pajama style than One-piece style. 4. The chemi-physical aspect was shown as an important factor in the demand of selection motive of bedclothes for agreeability. 5. But Psychological aspect was shown an important factor in the demand of selection motive of sleepwear for agreeability.

• 대한통합의학회지
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• 제10권3호
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• pp.185-198
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• 2022

Purpose : We conducted a study to propose comparing subjective sleeping states data that was collected through scientifically measuring by using smartwatch and surveys for seafarers. In addition, we conducted a study to provide sleep though analysis of the environmental factors that influence the sleep efficiency of seafarers. Methods : For scientific measurement of seafarers' sleeping states, we measured the sleep hours and sleep efficiency for at least 3 days by using the healthcare function of smartwatches which are wearable devices. As for subjective sleeping states, we collected data on sleep hours and satisfaction rates on the quality of sleep through a survey. Lastly, as for the environmental factors that affect the sleep efficiency which is measured by smartwatches such as physical environment, bedroom space, bedroom furniture, bedding, a survey by self-evaluation method was conducted. Results : There were significant differences in the scientific sleep hours measurement values for all seafarers and the average sleep hours in the subjective survey. There were significant differences in the scientific sleep efficiency measurements of all the seafarers and the sleep satisfaction of the subjective survey, and there was no correlation between the scientific sleep efficiency and the subjective sleep satisfaction of all the seafarers. Among the environmental factors affecting the sleep efficiency of the seafarers, humidity variable had the most influence, and vibration and illuminance variables were also shown to have a very significant effect. Conclusion : We propose the measuring method that can analyze the quantitative and qualitative sleep states of the seafarers by using small activity recorders. In addition, it is very important to control humidity, vibration, and illuminance among ship environmental factors, and comfort, noise and bedroom size should also be reflected.

• 한국감성과학회:학술대회논문집
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• 한국감성과학회 1999년도 추계학술대회 논문집
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• pp.3-6
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• 1999

There are numerous studies on relations between sleep and environmental factors such as noise, illumination and thermal conditions. Sleep is affected by the thermal environment. This study describes influence of thermal environment on skin temperature, sleep patterns and body movements using physiological and psychological measurements. The results are as follows: 1) The fluctuations of room temperature during sleep appeared skin temperature variations. The more room temperature is high, the more skin temperature is high in 22$^{\circ}C$, 26$^{\circ}C$, 30$^{\circ}C$. 2) A significant relation between body movement and skin temperature was found within room temperature. Under room temperature conditions of 22$^{\circ}C$, 26$^{\circ}C$, 30$^{\circ}C$, there were significantly higher rates of body movement in the room temperature(30$^{\circ}C$). 3) Uncomfortable after sleep in thermal environment is mostly under high temperature(30$^{\circ}C$), and they are about fatigue due to not enough sleeping. 4) The degree of indoor thermal temperature with sufficient sleeping is in 22.8 ∼ 27.8$^{\circ}C$.