• Proceedings of the Korea Information Processing Society Conference
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• 2019.05a
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• pp.7-8
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• 2019

본 논문에서는 SIP프로토콜에 기반한 영상통화에서 지능형 AR기법을 지원하기 위한 방법에 대해서 서술 한다. 기존의 영상통화에서는 주위에 사물을 실시간 촬영하여, 바로 보낼수 있는 기능이 없었다. 휴대폰에서 AR기능은 주로 위치 서비스에 기반한 길찾기나 건물 내부의 모습을 자동으로 보여주는 용도로 많이 사용되었다. 본 연구에서는 지능형 AR을 이용하여 SIP기반 휴대폰 영상통화 도중 상대방에서 필요한 텍스트나 이미지를 자동으로 전달할 수 있는 방법을 제시함으로써, 사용자 휴대폰의 편의성을 높이고자 한다.

• Journal of Internet Computing and Services
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• v.11 no.2
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• pp.173-184
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• 2010

The advancement of ubiquitous networks facilitates and increases access to the Internet via mobile devices, which offers the advantages of enhanced mobility and accessibility. While Mobile Internet is largely free of temporal and spatial restrictions, producing content for mobile websites is a challenging work due to the existence of multiple device types and markup languages. This paper proposes a technique that makes use of image maps to improve the visual consistency of mobile web content displayed on a variety of mobile devices. The proposed image map method captures several objects comprising the webpage into a single image, and provides the image in Mobile Web services. Mobile devices employing the proposed method can reorganize webpages with multiple objects more easily and obtain the visually identical content on their screen.

• 한국벤처창업학회:학술대회논문집
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• 2020.11a
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• pp.121-126
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• 2020

본 연구는 농산업 종사자를 대상으로 통합기술수용이론 기반의 기술수용요인이 인지된 혜택과 농업드론서비스 사용의도에 어떤 영향을 미치는지를 살펴보고자 하였다. 전국에 거주하는 농산업 종사자를 대상으로 수집된 324부를 자료분석에 사용하였다. SPSS v22와 PROCESS macro v3.4를 사용하여 분석한 결과 첫째, 기술수용요인은 노력기대와 실용적 혜택 간의 관계를 제외하고 인지된 혜택에 유의한 영향을 미치고, 농업드론서비스 사용의도에는 모두 유의한 영향을 미치는 것으로 나타났다. 또한, 인지된 혜택은 사용의도에 유의한 영향을 미치는 것으로 나타났다. 둘째, 경제적 혜택은 성과기대를 제외한 기술수용요인과 사용의도 간을 매개하고, 편의적 혜택은 사회적 영향을 제외한 기술수용요인과 사용의도 간을 매개하는 것으로 나타났다. 반면에 실용적 혜택은 기술수용요인과 사용의도 간을 매개하지 않는 것으로 나타났다. 셋째, 조절변수인 혁신저항은 편의적 혜택과 사용의도 간의 영향력만 조절하는 것으로 나타났다. 본 연구는 농업드론서비스의 활용성을 높이기 위한 시사점을 제시하였다는데 의의가 있다. 향후 농업이나 드론 관련 교육 이수자 또는 드론자격증 소지자를 대상으로 실증분석이 필요하며 조사대상도 지역별로 균등하게 조사할 필요가 있다. 또한 사용의도에 영향을 미칠 수 있는 다른 변인들을 추가하는 후속연구가 필요할 것으로 판단된다.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.35 no.3
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• pp.203-210
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• 2017

Korea has established an advanced infrastructure for real-time precise positioning such as CORS, virtual reference station service and perform continuous upgrading. However, in order to utilize the national infrastructure, it is necessary to process the acquired spatial information and take many steps to derive the final product. In addition, this process is highly dependent on foreign software. In this study, GNSS field survey system was developed and evaluation of its usability was performed. Real-time GNSS field survey system was developed and the system improves user̓s convenience and usability. The system was able to conduct survey effectively and produce the results. In addition, we compare the existing software with the survey performance to show the availability of the real-time GNSS surveying system. The system developed through the research can perform all the functions from real-time survey to the production of the outputs. It can create economical added value of the foreign software as a whole and simplify the work required for post-survey performance.

• Journal of KIISE:Computer Systems and Theory
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• v.36 no.5
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• pp.387-395
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• 2009

The establishment of security architecture is essential because security vulnerabilities occur such as user's unjustifiable connection for the opened gateway and access to resources without permission in OSGi service platform environment. In this paper, it proposes a authentication technique for an Automatic user authentication which is used the Symmetric Key and the Service bundle authentication to consider the constraints of the hardware in the OSGi service platform environment. Typically, the type of entering a password is used for the user authentication mechanism however OSGi platform environment studies not entering the password but using MAC address and encrypted identifier of the automatic user authentication mechanism because the devices are limited in their input. In this paper, the Symmetric Key is used for bundle authentication mechanism. Therefore operation becomes quick and secure authentication process has been successfully completed by using the time data and a ticket which contains a license. Based on these two different authentication mechanisms, it could eliminate the constraints of resources and improve the convenience of users and administrators. Also it shows an effect from omitting the waiting time to enter a password and reducing operations which need for authentication in the OSGi service platform environment.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.8 no.2
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• pp.108-117
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• 2009

The South Korean government is looking for a solution to the ever-growing problems of traffic congestion, and surging international oil prices: the use of the humble bicycle to get to places. However, Many people feel inconvenient using bicycle because of the insufficient bicycle infrastructure and lack of the safety and connectivity between existing pathways. In this study, bicycle level of service model using ordered probit model is developed considering safety, convenience, connectivity, and factors that affect bicycle LOS. The ordered probit model would be recommended for the research which relates in choice, preference and strength etc. Bicycle level of service criteria is calculated by applying this model reflecting bicyclist's point of view. The model which develops from this research which accomplishes a bicycle level of service evaluation and represent alternative solution to encourage bicyclist. It is believed that the proposed model would be greatly utilized in bicycle network planning, bicycle road and facility alternatives testing, projects funding priority.

• Journal of Korean Society for Geospatial Information Science
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• v.21 no.1
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• pp.45-52
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• 2013

EIASS(Environment Impact Assessment Supporting System) provided the various updated quality environment impact assessment data and the assessment reports through database system to support cost effective and stable services. Through this system users can access environment impact assessment information and have great convenience in their relevant works. This study introduces geo-spatial information usages in EIASS and how this system developed the use of convenience and expansion of service ranges by user surveys. This study also demonstrated step-wise delivery and links on one-stop database inventory for data collection, manipulation, and usages of geo-spatial information among environmental information.

• Journal of Internet of Things and Convergence
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• v.8 no.5
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• pp.47-54
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• 2022

The development of the Internet of Things led to new services that did not exist before. This required a change to the existing network. This study aims to verify the service quality, satisfaction, repurchase intention relationship, and the moderating effect of online reviews of Chinese consumers using fashion shopping malls. The results of the study showed that from the perspective of consumers in their 20s and 30s in China, the type, reliability, convenience, and interaction of service quality had a positive effect on customer satisfaction and repurchase intention. In addition, negative reviews among online reviews had a great influence on repurchase intention. Based on the results of the study, it will help improve the effect on online product reviews and in-depth understanding of the acceptance of online product reviews for online fashion shopping malls, and establish strategies for fashion companies to effectively manage online product reviews information.

• The KIPS Transactions:PartD
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• v.18D no.3
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• pp.185-196
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• 2011

As the Korean Ministry for Health and Welfare announced the likelihood to revise the legislative limit for healthcare telemedicine, u-Healthcare service through IPTV emerged among these business models. However, in spite of many advantages such as treatment improvement, service quality enhancement, and treatment usefulness, most medical trials grafted with IT have not accepted yet. This points out not only that law and institutional environment has not prepared, but also that policy maker neglect the preparation of the strategies through the study on user acceptance. The purpose of this study is to verify the relationship for IPTV quality based Healthcare on satisfaction and intention to use. The results identify that IPTV technology quality for its convenience, contents quality for its completeness, and the quality for healthcare services give significant effect to satisfaction. In addition the study indicates that overall qualities of IPTV technology, contents, and healthcare service, significantly impact on satisfaction respectively and that the satisfaction may lead to the intention to use of this service.

• Information and Communications Magazine
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• v.15 no.4
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• pp.77-88
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• 1998

주파수 경매 정책의 필요성은 이동통신 분야의 수요 급증 (98년 4월말 현재 CDMA 이동전화 가입자가 570만, 무선호출 1500만, PCS 가입자 300만)과 더불어 IMT-2000과 같은 무선 이동 멀티미디어 서비스 개발과 2000년부터 실시되는 디지털 방송 서비스 등을 위해 효율적 전파 자원인 주파수 관리가 필요하며, 전파사업의 국내 관련 기술의 조기 정착이 요구되고 있다. 따라서 전파 자원 관리도 이용자 편의 증진과 새로운 통신 서비스 측면에서도 적극적으로 검토되어야 한다.