• 한국HCI학회:학술대회논문집
• /
• 한국HCI학회 2006년도 학술대회 1부
• /
• pp.188-196
• /
• 2006

유비퀴터스 컴퓨팅 또는 퍼베이시브 컴퓨팅 분야는 최근 많은 연구와 개발이 이루어지고 있는 반면 그 비전과 영향을 효과적으로 보여주는 응용이나 서비스가 마땅히 떠오르지 않고 있다. 막상 한 두 가지의 훌륭한 기반기술을 개발하여 확보하여도 그것을 효과적으로 보여줄 수 있는 응용이나 서비스를 개발하는 것은 또 다른 도전과제인 것이다. 본 논문은 시나리오 기반 방법론 (Scenario-Based Development: SBD)을 이용하여 유비퀴터스 컴퓨팅 환경에서 필요한 서비스와 응용을 발굴하는 방법을 제시한다. 본 논문에서 제시하는 방법에서는 개발 주최가 보유하고 있는 요소 기술들을 나열하고, 그 기술들이 갖고 있는 문제점을 파악하기 위하여 사용자 설문을 실시한다. 설문을 분석한 결과로 문제 시나리오를 작성하고, 문제 시나리오 분석을 통하여 해결 시나리오를 작성한다. 이 두 시나리오를 작성하고 분석하는데 있어서 유비퀴터스 컴퓨팅의 개념과 기술적 특성을 반영한다. 최종적으로 해결 시나리오로부터 새로운 응용 서비스를 발굴하여 프로토타입 시스템을 개발하게 된다. 마지막으로 제시된 방법론을 이용하여 개발된 OSGi 기반의 스마트 홈 방범 시스템, 상황인지 방송 컨텐츠 제공 시스템, 그리고 개인 안전 감시 시스템, 이렇게 세 가지 시스템을 간단하게 소개한다.

• 한국HCI학회:학술대회논문집
• /
• 한국HCI학회 2006년도 학술대회 1부
• /
• pp.970-975
• /
• 2006

There is a tradeoff between user's privacy and utility of context-aware services in ubiquitous computing environments. Many privacy models have been proposed to support the disclosure of personal information at different levels of detail, in ubiquitous computing environments. However, most of these models do not allow for explicit criteria to assess the benefit users are likely to reap by disclosing their personal information. In this paper, we propose an automated decision making mechanism that evaluates the "benefit of disclosure" for the users based on trust relationships between users and information requesters and manages the disclosure of user's personal information accordingly. Unlike other trust models, we do not regard the reputation of an information requester as sufficient to determine his/her trustworthiness. Instead, we represent trustworthiness as a function of information requester's reputation in the eyes of the user and his/her competence in a given context. To validate our mechanism, we apply it to context-aware healthcare application that monitors physiological condition of a user.

• 한국지리정보학회지
• /
• 제18권4호
• /
• pp.59-67
• /
• 2015

좁은 국토에서 최적의 생태마을 조성을 위한 여러 가지 방법이 시도되고 있다. 지형인자와 유비쿼터스 센서 네트워크에 의한 환경인자를 결합하여 새로운 최적의 생태마을 인자를 도출하고자 인간의 구체적인 정착 생태공간을 조사하고, 이것에 대한 자연적인 실제 정착 공간 분석과 비교하여 최적의 생태마을조성방안을 도출하고자 하였다. 보다 건강하고 행복한 자연공간을 활용할 수 있는 웰빙 공간구성과 더불어 생태적인 요인과 결합되어져서 자연치유가 가능한 삶의 공간을 찾아낼 수 있다는 점에서 하나의 가능한 새로운 방법으로 실측함으로써, 전 국토의 크고 작은 마을 단위의 생태마을 조성에서 하나의 새로운 이정표를 제시하였다.

• 대한임베디드공학회논문지
• /
• 제3권4호
• /
• pp.218-228
• /
• 2008

The convergence of broadcasting and telecommunication services is being accelerated by broadband networks, digital broadcasting and Web2.0. This paper describes the definition and service characteristics of IPTV as a representative of broadcasting and telecommunication convergence services. Especially, the changes of infrastructure and technology for IPTV2.0 are addressed in terms of the service features of mobility, intelligence and participation. IPTV2.0 shall be characterized by the open IPTV service based on Web2.0 and the mobile IPTV service over the heterogeneous networks employing various wireless/wired access technologies. The IP Multimedia Subsystem (IMS) and Service Delivery Platform (SDP) technologies are increasingly considered to support the personalization and openness. The mobility management technology is being evolved to provide QoS-guaranteed mobile communication services to users at anytime and anywhere. IPTV2.0 services and platforms are also anticipated to be core components to achieve knowledge-based ubiquitous society. IPTV2.0 contents are required to be integrated with the enhanced metadata to efficiently support search, selection, convergence and delivery of the contents. Moreover, those contents shall be enhanced to provide the scalable services which is adaptable to the network status and user preferences. Therefore, the networking technologies for IPTV2.0 should tightly cooperate with application services and adaptive contents. Those technologies will be developed to construct the ubiquitous content service platform considering the evolution of networks and various converged services.

• 한국콘텐츠학회:학술대회논문집
• /
• 한국콘텐츠학회 2006년도 추계 종합학술대회 논문집
• /
• pp.70-74
• /
• 2006

본 논문은 URC(Ubiquitous Robotic Companion)라는 지능형 로봇에 웹서비스 기반의 실시간 감시/제어 방법을 제안한다. URC는 유무선 통신이 가능한 각종 외부 디지털 디바이스와 상호 연동하도록 설계된 지능형 로봇이다. 본 논문에서는 NETTORO라는 로봇을 타겟으로 본 연구 결과를 구현하여 실용적 가치를 검증하였다. 로봇의 각종 Sensors, Actuators 등의 정보를 획득하여 원격에서 감시 및 제어 할 수 있도록 웹 서비스 기술을 임베디드 시스템 환경에 최적화시켜 설계 및 구현하였으며, 명령 포트를 WSDL에 기술하여 gSOAP전송 프로토콜을 통한 AXIS 엔진에서 웹 서버나 응용 프로그램 등 다양하게 적용할 수 있도록 하였다.

• 한국의류산업학회지
• /
• 제8권4호
• /
• pp.420-426
• /
• 2006

Korean prior studies on smart clothing seeking complete mixture of clothing and computer with diverse functions in the ubiquitous environment were so mere, while there have been aggressive activities to develop diverse smart clothing products led by the relevant industries and universities in foreign countries. Given prospective growth of the smart clothing market, there should be customers' evaluation of functions and utility of and sensitivity to smart clothing as well. This study conducted a questionnaire to Korean customers in their twenties regarding their perception and liking of and willingness to use smart clothing, and examined the needs of new functions of smart clothing. As a result, the customers in their twenties turned out to like well-designed and comfortable clothing, and be exposed to diverse and continuous computing environment. Also, they have relatively low perception but considerably high liking of smart clothing, indicating their high willingness to use smart clothing products. They cited 'selectable functions' and 'mobile and convenient ' as merits, and 'too expensive' and 'easy to wash' as demerits of smart clothing. In the respect, they proposed many interesting smart clothing ideas, such as 'clothing with automatic temperature-sensing function, which gets higher heat- insulating function by tightening the textile structure in winter and higher ventilating function by loosening the textile structure in summer.' We hope the results of this study will serve basic data for development of more efficient smart clothing in the future.

• 한국산학기술학회:학술대회논문집
• /
• 한국산학기술학회 2011년도 추계학술논문집 2부
• /
• pp.529-532
• /
• 2011

Recently research efforts for ubiquitous technology that includes RFID(Radio Frequency Deification and sensor networks are conducted very actively The architectural framework of the USN sensor network discovery service. The survey of the USN technology is conducted on four technological visions that contain USN system technology USN networking technology and USN middleware along with the service platform, With respect to each technological division domestic and worldwide leading research projects are primarily explored with their technical features and research projects are primarily explored with their technical features and research outputs. Boasted on the result of the survey we establish a USN software model that includes data sensing, sensor data storage sensor data storage sensor data naming and sensor feed name service. This main objective of this model is to provide a reference model for the facilitation of USN application developments.

• 한국군사과학기술학회지
• /
• 제13권2호
• /
• pp.283-295
• /
• 2010

Although some large units, upper than division, have a identification system, most of them depend on US military. Especially, the company unit can not but execute GOP(General OutPost) guidance and battles inefficiently because they apply the method of conventional identification system. urrently, North Korea causes the high tension of peninsular by experimenting nuclear weapons and launching ICBM(Intercontinental Ballistic Missile). In addition, ROK military will reduce the number of personnel and division through reorganizing the structure into NCW (Network Centric Warfare) until 2020. These unstable situation and future tendency require the high technical identification system based on USN(Ubiquitous Sensor Network) in company unit level. his study suggests the method that the company unit apply the identification system based on USN which distinguish between friend and foe in the warfare. The identification system concludes the results through experiment of military analysis model (AWAM; Army Weapon effectiveness Analysis Model). After analyzing the experiment results, it indicates the budget requirement and operational operability of identification system. This will be able to improves battle efficiency and to prevent damages of friendly forces.

• ETRI Journal
• /
• 제34권5호
• /
• pp.713-718
• /
• 2012

Sensor nodes in ubiquitous sensor networks require autonomous replacement of deteriorated gas sensors with reserved sensors, which has led us to develop an encapsulation technique to avoid poisoning the reserved sensors and an autonomous activation technique to replace a deteriorated sensor with a reserved sensor. Encapsulations of $In_2O_3$ nanoparticles with poly(ethylene-co-vinyl alcohol) (EVOH) or polyvinylidene difluoride (PVDF) as gas barrier layers are reported. The EVOH or PVDF films are used for an encapsulation of $In_2O_3$ as a sensing material and are effective in blocking $In_2O_3$ from contacting formaldehyde (HCHO) gas. The activation process of $In_2O_3$ by removing the EVOH through heating is effective. However, the thermal decomposition of the PVDF affects the property of the $In_2O_3$ in terms of the gas reactivity. The response of the sensor to HCHO gas after removing the EVOH is 26%, which is not significantly different with the response of 28% in a reference sample that was not treated at all. We believe that the selection of gas barrier materials for the encapsulation and activation of $In_2O_3$ should be considered because of the ill effect the byproduct of thermal decomposition has on the sensing materials and other thermal properties of the barrier materials.

• 산업공학
• /
• 제21권2호
• /
• pp.229-236
• /
• 2008

Recently, ubiquitous computing paradigm considers as a tool for making innovation and competitive strength in manufacturing industry like other industries. Particularly, the location-based service that enables us to trace real-time logistics make effective management of schedules for inventory control, facilities and equipments, jobs planning, and facilitate the processes of information management and intelligence, which relate with ERP and SCM in organizations. Our study tries to build the location-based system for products of semiconductors in manufacturing place and suggests the good conditions and effective tracking procedures for positions of products. Our study show that the system is good for the saving of time in tracking products, however, it has to be improved in terms of accuracy. The study verifies the application of RFID technology in manufacturing industry and suggests the improvement of photograph process through RFID. In addition, our research introduces the future operation of FAB in semiconductors' processes that relate with real-time automation and RFID in manufacturing company.