• 한국산업융합학회 논문집
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• 제21권3호
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• pp.125-131
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• 2018

In this paper, we propose a homogeneous multisensor-based navigation algorithm for a mobile robot, which is intelligently searching the goal location in unknown dynamic environments with moving obstacles using multi-ultrasonic sensor. Instead of using "sensor fusion" method which generates the trajectory of a robot based upon the environment model and sensory data, "command fusion" method by fuzzy inference is used to govern the robot motions. The major factors for robot navigation are represented as a cost function. Using the data of the robot states and the environment, the weight value of each factor using fuzzy inference is determined for an optimal trajectory in dynamic environments. For the evaluation of the proposed algorithm, we performed simulations in PC as well as real experiments with mobile robot, AmigoBot. The results show that the proposed algorithm is apt to identify obstacles in unknown environments to guide the robot to the goal location safely.

• 인간식물환경학회지
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• 제21권6호
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• pp.501-514
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• 2018

This study aimed to develop a program that can be linked to gardening education activities in elementary students' curriculums and creative experience learning courses, and to apply the developed program to 6th graders in an elementary school located in Seoul. Research was conducted in a large category called biophilia, which named the instinct of human nature and nature throughout the research. The curriculum revised in 2015 was selected for the purpose of the garden education program based on the objectives and contents of the unit, and for the purpose of the class. In the process of developing and implementing the program, experience properties and elements were divided into direct and indirect experience of nature, including shapes and forms found in nature, air, water, plants, weather, animals, and natural materials. The results showed that the biophilic horticultural education program was effective in promoting students' multi senses. In the case of the experimental group, all the multi-sensory areas showed statistically significant differences, especially in the area of environmental literacy, environmental effect and emotional balance including plant cultivation knowledge. There was a relatively smaller difference in the dietary effect area than other areas because of no directional dietary program was included in the developed program. As a result, first, it is expected that the data can be utilized on site as a program or place of activity for students in upper grades. Second, it will be necessary to develop a more diverse program using other biophilic elements that were not covered in this study in order to maximize the effects of biophilic education.

• 정보과학회 논문지
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• 제43권12호
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• pp.1365-1375
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• 2016

일상생활 환경 속에서 자율적으로 동작하는 서비스 로봇에게 가장 필수적인 능력 중 하나가 동적으로 변화하는 주변 환경에 대한 올바른 상황 인식과 이해 능력이다. 다양한 센서 데이터 스트림들로 부터 신속히 의사 결정에 필요한 고수준의 상황 지식을 생성해내기 위해서는, 멀티 모달 센서 데이터의 융합, 불확실성 처리, 기호 지식의 실체화, 시간 의존성과 가변성 처리, 실시간성을 만족할 수 있는 시-공간 추론 등 많은 문제들이 해결되어야 한다. 이와 같은 문제들을 고려하여, 본 논문에서는 지능형 서비스 로봇을 위한 효과적인 동적 상황 관리 및 시-공간 추론 방법을 제시한다. 본 논문에서는 상황 지식 관리와 추론의 효율성을 극대화하기 위해, 저수준의 상황 지식은 센서 및 인식 데이터가 입력될 때마다 실시간적으로 생성되지만, 반면에 고수준의 상황 지식은 의사 결정 모듈에서 요구가 있을 때만 후향 시-공간 추론을 통해 유도되도록 알고리즘을 설계하였다. Kinect 시각 센서 기반의 Turtlebot를 이용한 실험을 통해, 제안한 방법에 기초한 동적 상황 관리 및 추론 시스템의 높은 효율성을 확인할 수 있었다.

• 디자인학연구
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• 제20권2호
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• pp.103-116
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• 2007

Art education in design has repeatedly stressed the importance of developing creativity. In the digital period, however, which shows rapid change in both forms and contents, it needs to be equipped with more flexible and systematic ways of approaching to the creativity development, especially involved with cultural diversity of the digital world. This paper primarily proposes a maximally efficient, productive creativity learning program in which the integration of expressive media and communication generates a comprehensive network of communicative information in the development of digital technologies, which, consequently, brings forth valuable cultural contents of art. The amalgamation of Won (2006)'s Prism Effect, with distinctive three devices, and the facilitator factors, with two different facilitators such as self-controlled and controlled plays, would function as a catalyst for cultural diversity in the digital forms and contents of art. And this will, consequently, result in producing a number of practices that can be classified and assorted for a later performance. This paper thus suggests a roadmap of how to develop the creativity learning program in which two categories of facilitators based on three thinking devices function to classify four activities. In addition, selected activities are shaped as a creativity learning program by generating learning practices with the formalizing instructional strategy that fit into a specialized educational environment and learners. The samples of loaming practice design show guidelines for practice and the results of learning activity. Therefore, the eventual goal of this paper would be to establish a creativity learning program that constitutes a highly systematized and modularized database to maximize the efficiency and productivity of the creativity development.

• 한국실내디자인학회논문집
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• 제23권4호
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• pp.83-93
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• 2014

Because the 'image' is the 'reality' in this era, there are the characteristics dematerialized between reality and non-reality in the contemporary architecture. These are promoting individualization, differentiation and multi-layered time with the development of electronic technology. This trend emphasizes the importance of imagines that are not only homogenized, simultaneous but also overlapped, multi-layered, discriminatory. Perspectives and essential characteristics of the architectural skin are changing in terms of the technical and social awareness and that means the skin has features as a complex body. Recently as an imagine creator, the architectural skin make form of media boundaries reflecting the various relationships between the observer and the external environment and also, the interior space become another sensory skin by removing the boundaries of the internal and external. It is important that making an identity of the architecture defined by the media or the imagine as well as the importance of space in architecture. These changes of skin make the third space based on the viewer's imagination and show the potential of new architectural skin with the expansion space by blurring the boundary between reality and illusion. It occurs to the diversity of the architectural skin with the identity. It will more diversified and be recognized immediately and sensibly through the interface attributes in contact with the city directly. In addition, it is more important that the skin become a unified body related with urban, social and cultural context.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2013년도 추계학술발표대회
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• pp.535-537
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• 2013

최근 현대사회의 가족체제 변화로 인해 유아 보육의 수요와 보육 시설이 급증함으로써 양질의 보육 환경에 대한 요구가 점차 증가하고 있다. 유아기는 성인과 비교할 때 정서가 불안정하고 급변하는 시기이며 특히 시각 및 청각을 통한 자극에 더욱 민감하므로 유아 시기의 보육 환경은 성장 이후 지적 사회적 발달에 큰 영향을 미치는 중요한 요소이다. 또한 유아의 보육 활동 유형에 따라 이러한 두 가지 이상의 감각을 동시에 자극하게 되면 감각의 통합과 상호작용으로 편안함과 집중력을 향상하는 효과를 가져온다. 본 논문에서는 만 3~5 세의 유아를 대상으로 양질의 보육 환경 제공을 위해 '수면', '학습', '놀이', '식사 및 휴식'을 포함한 네 가지 보육 활동 유형을 상황 정보로 정의하고 각 상황에 적합한 시각 및 청각 환경을 복합적으로 서비스하기 위한 다감각 시스템을 제안한다.

• 한국주거학회논문집
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• 제19권4호
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• pp.79-87
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• 2008

Snoezelen, multi-sensory stimulation, provides stimulation through the visual, aural, tactile, olfactory, gustatory and proprioceptive senses. Its aim is to be a relaxing, feeling of safety, novelty and stimulation with no expectations for performance. Agitated behavior of people with dementia causes significant problems and distress for cares. The objective of this research study was to test the effects of Snoezelen room on physical and verbal agitated behaviors of people with dementia. Four patients participated five sessions in Snoezelen room of 'F' dementia care facility in Sweden. Assessment instrument was basically used Cohen-Mansfield Agitation Inventory-Short Form to be rated by caregivers on a 5-point frequency scale. Pre-trial and post-trial assessments were carried out during $27^{th}$ Aug.-$27^{th}$ Sept. 2007. Result shows that Snoezelen room has some short-term positive effect on agitated behavior even though there was a considerable variation individuals responded. This result adds to the increasing evidence that Snoezelen could be a therapeutic environment for the elderly with dementia. Further research study, with larger number of participation, and a control group is required to establish more scientific evidence of Snoezelen effects on health outcome.

• 한국유통학회지:유통연구
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• 제6권2호
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• pp.109-133
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• 2002

본 연구는 온라인환경에서 소비자가 제품을 구매할 때 얼마나 브랜드에 의존하여 의사결정을 하는 지에 대한 실증연구이다. 기존의 연구에서는 온라인에서는 탐색비용이 저렴하고, 정보가 풍부해서 브랜드 의존성이 약화될 것이라고 설명하고 있다. 그러나 본 연구는 온라인 상에서 제품 구매시 제품 유형에 따라 브랜드 의존성이 차별적일 것이라는 가설을 설정하였다. 분석결과, 탐색제품의 경우에는 속성정보의 가용성이 소비자의 불확실성을 감소시켜 브랜드의 의존성이 약화되었다. 그러나, 경험제품의 경우에는 다중감각의 취약성이 소비자의 불확실성을 증가시켜 브랜드 의존성이 높게 나타나게 하였다. 결론적으로, 제품유형에 따라 온라인 상 구매의사결정에 대한 브랜드 의존성이 다르게 나타났다.

• 대한인간공학회지
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• 제17권1호
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• pp.91-102
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• 1998

History of the Sensibility Ergonomics is explained. Concepts, definition, and research methods on the human sensibility are proposed for systematic applications of human sensibility studies to product and environment developments. Sensibility Ergonomics was born in socio-technological environments where consumers required aesthetic and satisfactory products in addition to useful and usable ones, and manufactures were trying to develop consumer-oriented, user-friendly products. Sensibility Ergonomics is defined as "multi-disciplinary and inter-disciplinary processes for developing products and environment as usable, comfortable and satisfactory with the information on human sensibility." Human sensibility is functionally defined as "feelings generated when perceived sensory and information stimuli are reflected from memory which has been accumulated through personal experiences." Human sensibility is affected by at least three factors: personal, social, and cultural. Consumers evaluate products in three aspects : functional, sensorial, and cultural sensibilities. Human sensibility is personal, dynamic, and ambiguous. It is generated reflectively and intuitively against external stimuli. No Physiological responses are accompanied, and one cannot control his/her sensibility. However, the sensibility affects the decision making or behavior of the person. To understand the human sensibility many inter-disciplinary methods should be used instead of one-variable approach. Micro-scopic studies such as Questionnaire, interview, behavioral analysis, and psychophysiological experiments can be performed. In addition, social and cultural studies are essential to understand an individual's sensibility. Results of sensibility studies can be applied to setup new interactions between human and machine through sensible(or affective) human-machine (computer) interfaces. Human-oriented and user-friendly products can be made with the information on human sensibility.

• 한국컴퓨터그래픽스학회논문지
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• 제26권4호
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• pp.9-15
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• 2020

가상 현실(VR)에서 사용자와 동일한 아바타를 시각화하는 것은 몰입도를 증가시킨다. 가상 현실 기술이 발달함에 따라 여러 사용자들의 가상 소셜 네트워킹과 말하는 아바타를 포함하는 다양한 어플리케이션이 늘어난다. 보급형 가상현실 기기에서 사용자의 얼굴 전체와 몸 동작 캡처를 위한 디바이스 정보가 부족하기 때문에 대부분의 가상현실 애플리케이션은 대화하는 얼굴과 몸을 나타내지 않는다. 우리는 오디오와 동기화되어 대화하는 가상 얼굴을 위해, 가상현실 어플리케이션을 대상으로 하는, 새로운 방법을 제안한다. 우리의 시스템은 단일 사용자 애플리케이션에서 사용자 자신과 동기화된 아바타를 실험한다. 단일 사용자 환경에서는 자신의 아바타를 미러링 하고 다중 사용자 환경에서 동기화된 대화 파트너를 시각화 하여 동기화된 대화 아바타의 구현한다. 우리는 사실적으로 대화하는 아바타가 동기화되지 않은 말하는 아바타나 보이지 않는 아바타보다 더 영향력이 있다는 것을 사용자 스터디로 검증한다.