• 한국주거학회논문집
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• 제24권3호
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• pp.37-44
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• 2013

As household energy consumption has increased, serious environmental problems, such as resource depletion and global warming, are becoming global issues. It is essential to conduct the energy use of residents living in apartments in order to come up with alternative solutions for energy savings. Therefore, this study examined the energy use awareness of apartment residents and their energy use behavior by various types of awareness. To understand their energy use behavior according to the awareness of the subjects, the energy awareness dimension was created with five factors and they were subject to a cluster analysis; then, the subjects were categorized into three groups. Finally, the difference of energy use behavior was examined by groups of energy awareness. G1 represents the group that is indifferent to energy savings and believes that convenience is an important factor. Also, with respect to energy use behavior, this group tends to pursue convenience. G2 is the group that is conscious of energy use costs thereby enduring some inconvenience, and shows savings behavior in daily life and household affairs. Although, G3 is very aware of the significance for the necessity of energy saving, their energy saving behavior is relatively negative. Regarding these different characteristics of each resident group in their energy saving awareness and behaviors, diverse methods and promotion in energy education are required. Furthermore, an effective energy policy should be established based on the understanding of energy consumption.

• 대한안전경영과학회지
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• 제17권3호
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• pp.89-96
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• 2015

The study was conducted with statical analysis of data (828 data in 2010, 752 data in 2012, 648 data in 2014) in order to evaluate laboratory awareness difference of research employees working in different types of universities. Results of the study were as follows: First, university institutes in the order of polytechnic colleges, university, and junior college showed the highest laboratory safety awareness in 'awareness and education of laboratorial safety regulation' and 'awareness in laboratory risk factors'. Second, the difference in safety awareness of universities by year(years that conducted current status survey) was the highest in year 2014, then in 2010, and in 2008. Third, the difference of research employees working for laboratory safety management by year(years that conducted current status) showed that university had the highest laboratory safety awareness in year 2010, but it changed to polytechnic colleges in year 2012 and 2014. Through this study, we could recognize the difference in safety awareness of research employees working in university institutes.

• 설비공학논문집
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• 제27권1호
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• pp.14-23
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• 2015

Although research and technology developments have recently increased to save lighting energy within buildings, such research and technology development are judged to be unsuitable for energy savings since they are limited in the sense that the application of the technology is fragmented. This study proposes a user and location awareness technology applied to dimming lighting control system and verified the effectiveness of energy savings by building a test bed. The results were as follows : 1) This study suggested a user and location awareness technology applied to dimming lighting control system. 2) The system shows 96.6% and 82.8% energy saving rates, respectively, on the basis of one user, compared to an on/off lighting control and the user and location awareness technology applied to on/off lighting control system. 3) The energy consumption of the user and location awareness technology applied to on/off lighting control system and the user and location awareness technology applied to dimming lighting control system increased to 96.6%, 88.3%, and 59.6% and 82.8%, 85.0%, 51.5%, respectively, on the basis of one, two, and three users, compared to the on/off lighting control system. This study confirmed the energy saving performance of the user and location awareness technology applied to the dimming lighting control system through performance evaluation. In this regard, further study needs to be undertaken to evaluate the performance at night time.

• 한국산학기술학회논문지
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• 제14권10호
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• pp.4819-4829
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• 2013

이 연구는 학부모의 에너지절약 인식 및 행동이 유아의 친환경태도와 환경보전지식에 미치는 영향을 알아보는데 목적이 있다. 이를 위하여 2013년 6월 10일부터 30일까지 충남 N시의 농어촌형 어린이집에 다니는 유아와 부모 160명을 대상으로 설문조사를 실시하였다. 분석결과 첫째, 학부모의 에너지절약 인식이 유아의 친환경태도에 미치는 영향은 학부모의 환경보전의식, 에너지 전략의식이 유아의 친환경태도에 영향을 미쳤다. 둘째, 학부모의 에너지절약 행동이 유아의 친환경태도에 미치는 영향은 학부모의 일반행동, 선택행동이 유아의 친환경태도에 영향을 미쳤다. 셋째, 학부모의 에너지절약 인식이 유아의 환경보전지식에 미치는 영향은 학부모의 환경보전지식, 에너지 전략의식이 유아의 환경보전지식에 영향을 미쳤다. 넷째, 학부모의 에너지절약 행동이 유아의 환경보전지식에 미치는 영향은 학부모의 일반행동, 선택행동이 유아의 환경보전지식에 영향을 미쳤다. 이상의 연구결과 학부모의 에너지절약 인식과 행동은 유아의 친환경태도와 환경보전지식에 긍정적인 정(+)의 영향을 받는 것으로 나타났다. 이는 유아의 친환경태도와 환경보전지식을 긍정적으로 높이기 위해 학부모의 바른 에너지절약인식과 행동의 중요함을 시사해 준 것이라 할 수 있다.

• 지능정보연구
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• 제17권2호
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• pp.23-38
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• 2011

에너지 관리는 센서, 컴퓨터나 가전기기와 같은 원천들의 에너지 소비를 최적화함으로써 재정적 생태적 성공을 달성하는 것이 목적이다. 따라서 각 원천들로부터 에너지 측정과 관련된 자료들을 획득하는 것이 에너지 관리의 출발점이다. 최근 상황인식 컴퓨팅을 아우르는 다른 인식컴퓨팅이라는 분야가 정보기술 영역에서 새롭게 부각되고 있다. 인식이란 생물체들의 생존을 위한 가장 기본적인 능력임과 동시에 인공지능의 도움으로 정보 시스템을 지능화하는 시발점이 될 수 있다. 이렇게 에너지 관리와 인식 컴퓨팅 연구가 상호 호혜적인 이익을 획득할 것임에도 불구하고 인식 컴퓨팅이 어떻게 에너지 관련 전략에 기여할 것인지에 대한 연구는 거의 존재하지 않는다. 따라서 본 논문의 목적은 에너지 관리 개선을 위한 인식 컴퓨팅 연구 이슈에 대해서 소개하는 것이다. 특히 인식 컴퓨팅이 에너지 절감과 사용자의 효용간의 균형을 실현하는 역할에 대해 집중하였다.

• 한국CDE학회논문집
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• 제21권4호
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• pp.397-408
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• 2016

VR and AR are widely used in many applications to provide more immersive visualization and natural interaction for learning and experiencing virtual but realistic tasks. Energy saving is considered as one of the most important issues throughout the world in order to overcome global warming and energy crisis. In particular, the awareness of home energy saving is regarded as a first step to deal with this issue. In this paper, we suggest a new learning environment using virtual and augmented reality (VR/AR) for home energy saving experience. In particular, it presents a comparative study of the user experience in home energy awareness using immersive virtual reality and mobile augmented reality. The first person user experience using immersive VR wearing head mounted display (HMD) and the third person user experience using mobile AR are implemented and systematically compared with each other in terms of the learning effect of energy saving and qualitative usability. Implementation results will be given to show the advantage and effectiveness of the proposed approach.

• 설비공학논문집
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• 제27권10호
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• pp.527-536
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• 2015

Studies for the reduction of lighting energy have been done using technologies such as user and location awareness. However, the focus of current research on location-based lighting control has been on energy reduction, which can lead to other issues including an imbalance in indoor illumination. This study proposes a lighting control system applying general illumination and technology for user and location awareness. The proposed lighting control system reduced lighting energy by 72.1%, 66.5% and 62.3% for 1, 2 and 3 users, respectively, compared to the On/Off lighting control system. This lighting control system causes an increase in lighting energy of 35.8% and 10.9% for 1 and 2 users compared to the lighting control system with user and location awareness, while a reduction of 9.4% was seen for 3 users. This means that the proposed system provides more effective energy reduction for a room with multiple occupants as it is based on the general lighting control scheme. The lighting control system applying general illumination and technology of user and location awareness improved the uniformity factor by 32.0%, 39.4% and 33.4% for 1, 2 and 3 users, respectively.

• 설비공학논문집
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• 제26권6호
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• pp.275-286
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• 2014

Light shelf is an efficient system that reduces the energy consumption by bringing the natural light down to the deep spaces inside of a building. However, the existing light shelves have limits in reducing energy usage, because the direction of the light flow is determined by the external environment such as the altitude of the sun and the azimuth. This current study presents a system that increases the efficiency of the light shelf by applying the Location-Awareness technology, in which the efficiency was verified through the performance evaluation. According to the examination of the technology for the Location-Awareness within residential space, 'Zigbee' type appears to be the most appropriate. The Location-Awareness technology operates the light shelf based on both the angle control axis and the light shelf angle control axis through the modularization of the reflector surface which is less affected by the external environment. The results of the performance evaluation showed that the movable light shelf that employs the Location-Awareness technology can reduce the energy consumption for lighting by 98.3% compared to the fixed light shelf and by 97.3% compared to the movable light shelf without Location-Awareness.

• 한국보건간호학회지
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• 제29권1호
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• pp.102-114
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• 2015

Purpose: This study was conducted in order to identify consumption status, risk awareness and experience of adverse effects of high caffeine energy drink among university students. Methods: This study was a descriptive survey including 270 students in 2 universities and 7 colleges in D metropolitan city. Consumption Status, Risk Awareness and Experience of Adverse Effects of High-Caffeine Energy Drink tools were developed by literature review. Data analyzed using descriptive statistics and $x^2$-test. Results: In the results, 86.7% of the students had previous experience of energy drink consumption and male students and smokers had more experience of energy drink consumption than female students and nonsmokers. The reason of energy drink consumption was increasing alertness for studying. 45.7% of the students were aware of the risk of high caffeine energy drink and the first risk was sleep disturbance. 51.1% of students were experienced adverse effects, mainly palpitation and sleeplessness. Conclusion: The results suggest a need to increase awareness of adverse effects and potential risks of high caffeine energy drink consumption in university students. In addition, university and government should provide education and campaigns to prevent excessive high caffeine energy drink consumption.

• Journal of Information Technology Applications and Management
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• 제12권4호
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• pp.93-104
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• 2005

Recently, RFID/USN is one of fundamental technologies in information and communications networks. Low-Rate WPAN, IEEE802.15.4 is a low-cost communication network that allows wireless connectivity in applications with limited Power and relaxed throughput requirements. Its applications are building automation, personal healthcare, industrial control, consumer electronics, and so on. Some applications require location information. Of course location awareness is useful to improve usability of data Low-Rate WPAN Is regarded as a key specification of the sensor network with the characteristics of wireless communication, computing, energy scavenging, self-networking, and etc. Unfortunately ZigBee alliance propose a lot of applications based on location aware technologies, but the specification and low-rate WPAN devices don't support anything about location-based services. RSSI ( Received Signal Strength indication) is for energy detection to associate, channel selection, and etc. RSSI is used to find the location of a potable device in WLAN. In this paper we studied indoor location awareness using vector matching of RSSI in low-Rate wireless PAN. We analyzed the characteristics of RSSI according to distance and experimented location awareness. We implemented sensor nodes with different shapes and configured the sensor network for the location awareness with 4 fixed nodes and a mobile node. We try to contribute developing location awareness method using RSSI in 3-dimension space.