• 한국실내디자인학회논문집
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• 제21권2호
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• pp.141-151
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• 2012

Korea is a fast growing aging society. Growing older population causes various social issues and problems in many aspects. Housing issue is one of them and residential modifications for improving safety and independence for older residents are very important factor for Aging in Place. Under those social circumstances, the purpose of this study was to analyze the residential modification demand by the elderly on the application of ubiquitous home services. Respondents were the residents those who were over 55 years old, were living in a singe detached house and were able to use a computer. The major findings of this study were as follows: the results on current situations and demands for residential modifications showed that respondents already made mean of 4.9 home modification items and wanted to make mean of 12.4 items out of 21 residential modification items. The results on demands for the ubiquitous home services was relatively high(mean 3.82). This study can be an important information which is able to improve the quality of life by providing effective residential modifications for older population to help them ultimately safe, convenient, and independent living.

• 한국정보통신학회논문지
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• 제11권4호
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• pp.678-686
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• 2007

유비쿼터스 서비스는 사용자 및 주변의 상황(context) 정보를 능동적으로 인식하여 사용자에게 제공되는 차별화된 고품질의 서비스로서, 이를 구현하기 위한 핵심 기술 중의 하나가 상황인지 미들웨어 기술이다. 본 논문에서는 일정 한 사용자 공간에서 유비쿼터스 서비스를 효과적으로 제공할 수 있는 방법에 대하여 제안한다. 즉, 다양한 센서로부터 상황 정보를 입력받아 현재의 상황에 적절한 서비스를 추론하여 결정하고 이를 사용자에게 제공하는 상황인식기반 지능형 홈서비스 미들웨어를 설계하고 구현한다.

• 제어로봇시스템학회논문지
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• 제10권6호
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• pp.566-573
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• 2004

This paper describes the ubiquitous home network (uHome-net) testbed and LonRF intelligent devices based on LonWorks technology. These devices consist of Neuron Chip, RF transceiver, sensor, and other peripheral components. Using LonRF devices, a home control network can be simplified and most devices can be operated on LonWorks control network. Also, Indoor Positioning System (IPS) that can serve various location based services was implemented in uHome-net. Smart Badge of IPS, that is a special LonRF device, can measure the 3D location of objects in the indoor environment. In the uHome-net testbed, remote control service, cooking help service, wireless remote metering service, baby monitoring service and security ＆ fire prevention service were realized. This research shows the vision of the ubiquitous home network that will be emerged in the near future.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2003년도 ICCAS
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• pp.2235-2239
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• 2003

The aim of this research is to study and develop enabling technologies for home healthcare device with ubiquitous network. The motivation of this paper is to enable healthcare in home, to development the device for smart home health care. To achieve the aim, we must develop the prototype platform based on home gateways, distributed context user interface based on UPnP and support for information sharing with high speed power line communication and mobile infra-structures. And IPv6 is the base technology of this platform. In this paper, we concern that physical health, mental health and medical emergencies is all of home healthcare. With the smart device, we evaluate the connectivity, automatic information extraction and private data exchange and event driven message. The result of this paper is demonstration of smart device for ubiquitous communication in a healthcare application such as patient monitoring device and several information services. In conclusion, home healthcare will support more healthy and easy living for a human.

• 한국인터넷방송통신학회논문지
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• 제9권3호
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• pp.123-129
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• 2009

유비쿼터스 홈은 가정 내의 다양한 가전기기 및 센서들로 구성된 유무선 네트워크를 통해 u-Life, u-Health등의 다양한 유비쿼터스 서비스를 제공하는 미래의 디지털 가정환경으로 부상하고 있다. 유비쿼터스 홈서비스는 센서들로부터 수집된 정보를 통해 사용자의 상황을 자동으로 인지하여 가전기기들을 상황에 맞게 적응하도록 함으로써 사용자 편의성을 극대화 한다. 이러한 상황인지 홈 환경에서 집안을 미리 사용자가 원하는 상태로 조절하기 위해 사용자의 미래 행위를 예측하는 것을 미래 유비쿼터스 홈에 가장 핵심적인 기능 중 하나이다. 본 논문은 유비쿼터스 홈 환경에서 상황인지 서비스를 위한 단계적 예측 알고리즘을 제안한다. 본 알고리즘은 예측과 실행의 두 단계로 이루어 진다. 첫 번째 예측단계에서 트리구조를 이용하여 사용자가 이동할 다음 위치를 예측하고, 두 번째 실행 단계에서는 테이블 매칭 방법을 이용하여 각각의 위치에 있는 가전기기들을 사용자가 원하는 대로 미리 예측하고 구동시켜 사용자에게 서비스를 제공할 수 있도록 설계하였다. 일반적으로 가전기기들은 한 개씩 독립적으로 동작하기보다 여러 기기가 함께 동작하여 특정 목적에 이용된다는 점에 착안하여, 모드서비스 개념을 도입함으로써 사용자가 동작시키고자 하는 기기들을 한꺼번에 예측할 수 있는 장점을 가진다. 또한 시뮬레이션을 통해 본 논문이 제안한 단계적 예측 알고리즘의 성능을 검증한다.

• 대한인간공학회지
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• 제31권1호
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• pp.63-76
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• 2012

Objective: The main objective of this study is to propose a user-centered assessment metric for ubiquitous services. Background: As the ubiquitous era took off, the interactions between ubiquitous services and users have come to take an important position. It is essential to conceptualize a new assessment model that considers human-system interaction capability with a user-centered design perspective. Method: The evaluation model for the interactivity of ubiquitous service was approached from the concept of usability and inter-personality of services. As a validation study, suggested assessment metric was utilized to evaluate the u-Home service. Priority weighting of each assessment metric was derived using the quantification type-I analysis. Results: To evaluate interactivity, this study suggested a quantitative metric for user testing performed after classifying the interactivity characteristics to contextualization; ubiquity; user experience; and service capability. Conclusion: This study suggest the metric for the ubiquitous service that are experienced in real life, and introduced the concept of ubiquitous service interactivity. Application: The suggested evaluation metric can be used to evaluate interactivity level of ubiquitous service and identify the potential problem and usability requirements at the early stage of service development.

• 가정∙방문간호학회지
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• 제15권2호
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• pp.67-74
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• 2008

Purpose: We analyzed the need for home care services and awareness of U-healthcare in nurses of the Catholic Parish Home Care Center to link the ubiquitous health care system and the home care. Methods: We recruited 46 nurses from a home care center in the catholic parish of the C medical center from April 4th to June 8th, 2007. Results: The highest needs were 'assessment and diagnosis of the problem', 'management of hypertension & diabetes patients', 'counseling of the patient', and 'counseling of major caregiver and family problems'. Therapeutic nursing showed the highest needs in bedsore care. Nurses want hospital medical records available through the ubiquitous health care system. Conclusion: Home care services are supported from the agency, with high needs in assessing and diagnosing the problem, counseling, and managing of hypertension & diabetes patients. Education and public relations efforts on the U-healthcare system should improve system awareness.

• 한국멀티미디어학회논문지
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• 제8권11호
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• pp.1531-1542
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• 2005

유비쿼터스 홈 환경(UHE: Ubiquitous Home Environment)에서의 멀티미디어 서비스에서는 사용자의 직접적인 명령 없이 자동적으로 실행되는 지능화된 서비스 와 각각의 사용자에 맞는 맞춤형 서비스, 사용자 편의성 및 투명성, 이종 디바이스간 멀티미디어 콘텐츠의 상호 호환성 등의 요구사항이 증가할 것이다. 또한, 이에 적합한 멀티미디어 보호 관리 및 인증 권한관리 방식 등이 필요 할 것이다. 본 논문에서는 UHE에 적합한 인증방식을 제안$\cdot$적용하며, 이종 기기간 멀티미디어 상호 운용성을 보장하며, 센서모듈과 홈서버를 이용한 상황정보(사용자 취향 정보, 디바이스정보 등)를 지능적으로 처리하고, 투명하고 안전한 서비스를 제공할 수 있는 사용자 중심 멀티미디어서비스(UHMS: Ubiquitous Home Multimedia Service)를 제안한다.

• 전기학회논문지
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• 제57권2호
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• pp.303-306
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• 2008

In this paper, we propose a home-networking service using mobile phone and ZigBee module. Recently, ZigBee is widely used for various applications due to its characteristics. Especially, it is generally adopted for home network services. We propose a new home network service model using mobile phones. In the proposed architecture, the mobile phones are connected to conventional home network appliances using ZigBee dongle. Also, several servers are implemented for service management. We implement the whole components of the proposed architecture and show the validity of the proposed method. With the proposed service structure, it is expected to provide various ubiquitous services for the user.

• Journal of Ubiquitous Convergence Technology
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• 제2권1호
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• pp.51-55
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• 2008

A digital home is a ubiquitous environment that is expected to be realized in the near future. All information appliances in a house are connected to each other through wired and/or wireless home networks. Authenticated user can access the various services provided by the digital home, and the access is not restricted by equipment, time, or location. The technologies that form the digital home can be grouped into two categories: wired networking technologies and wireless networking technologies. For the purpose of ubiquitous environments, wireless-networks offer suitable and seamless high-quality services. A wireless LAN can be created simply by equipping a single access point. For that reason, the cost of establishing such a network is low and using it is easy. Of course, there is an exciting new wireless technology. It is the Ultra Wide Band (UWB). However, it is not enough to bring wireless convenience, although offering a broad range of high-speed data transfer capabilities, Because of unstable. Thus, of the wireless-networking systems, we focus on the wireless LAN. We quantitatively analyze its capabilities. The dynamic and adaptive wireless LAN provides a foundation for the evolution toward the next generation of wireless and adaptive networks. The difference between wired LAN and wireless LAN in upload and download rates is small. Although the wireless LAN experiences a greater loss rate than the wired LAN, the difference is minimal. We conclude that a wireless LAN is suitable for use in an apartment environment.