• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2007.06a
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• pp.139-142
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• 2007

본 연구는 RAS 계수법과 동태적 산업연관 모형을 동시에 적용하여 u-City 구축의 경제적 파급효과를 분석하였다는 점에서 통상적인 산업연관분석과 차별성을 지닌다. 한국은행이 가장 최근 발표한 산업연관표는 2000년도 자료이다. 본 연구는 RAS 계수법으로 알려져 있는 예측기법을 이용하여 2000년 산업연관표를 2010년 표로 연장시켜 u-City 산업의 경제적 파급효과를 분석한다. 한편 산업연관분석에 통상적으로 사용되고 있는 모형은 정태적 분석모형인 기본 산업연관 모형이지만, 본 연구에서는 동태적 산업연관 모형을 적용하여 u-City 산업의 경제적 파급효과를 동태적으로 분석하였다. u-City 구축에 따른 총 생산파급효과는 약 3.3배로 추정되었으며, u-City 산업은 전방연쇄효과는 매우 높지만 후방연쇄효과는 그다지 높지 않은 것으로 나타났다.

• 한국정보통신설비학회:학술대회논문집
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• 2009.08a
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• pp.170-173
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• 2009

유비쿼터스도시(U-City)는 도시민의 삶의 질과 도시의 경쟁력을 높이는 것을 목적으로 하고 있다. U-City에서 제공하는 도시서비스는 기존의 도시서비스와는 다르게 도시민의 만족도가 도시서비스를 제공하는데 가장 중요한 고려사항이 되고 있다. U-City 서비스에 대한 도시민의 만족도를 측정하고 이를 기반으로 U-City 서비스를 설계하기 위해서는 기존의 도시서비스 및 통신서비스에 관한 만족도의 측정에 대한 연구에 대한 선행조사와 측정된 도시민의 만족도를 기반으로 U-City서비스를 설계하는 것이 필요하다. 본 논문에서는 도시서비스에 대한 사용자의 만족도를 측정하는 방법과 이를 기반으로 U-City 서비스를 설계하는 방법에 관하여 제안하고자 한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2008.11a
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• pp.1123-1125
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• 2008

U-City의 U-Service 솔루션들은 주민생활의 편의증대와 삶의 질 향상이라는 목적을 가지고 꾸준한 연구와 노력으로 개발되고 있다. 본 논문은 U-City의 포탈사이트 구축시 고려해야할 컨텐츠서비스 구성내용을 제안하고, U-City의 포탈사이트 구축 시 제공할 컨텐츠서비스 항목의 정의하며, U-City에서 거주민 생활편의서비스를 위한 포탈사이트 컨텐츠의 U-서비스를 활용할 수 있을 것으로 생각한다.

• Proceedings of the Korean Association of Geographic Inforamtion Studies Conference
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• 2008.10a
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• pp.272-277
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• 2008

본 연구의 목적은 U-City의 인력양성을 효율적으로 지원하기 위한 정책방향을 설정하는 것이다. 이를 위해서 지자체의 개략적인 U-City의 사업비 규모를 설정하고, 이에 대한 소요 인력을 예측하였으며. 국내시장과 해외시장의 증가율을 고려하여 개략적인 소요인력을 산정하였다. 또한 현재 정부에서 추진 중인 U-City 인력양성 정책의 방향에 대하여 고찰함으로써 현재 국내의 U-City 사업관련 인력양성의 방향을 살펴보았다.

• Spatial Information Research
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• v.17 no.4
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• pp.405-416
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• 2009

According to the changes of the city's paradigm, the demand on u-City increases rapidly. u-City has been built at 54 areas in Korea (as of May 2009). One of the important determinants of success or failure in the increasing of u-City is how to provide u-Services. Most current u-Services are Sensor Network-based monitoring services to manage urban infrastructure. u-GIS is one of fundamental requirements to implement 'any time and any where' u-Service which covers the essential meaningful term "ubiquitous". Hence, in this paper, we 1) describe the definition of the spatial awareness, 2) discuss how to converge (Spatial Embedding) among different spatial data : topographic spatial data, sensor spatial data, and more, 3) bring forth an advanced form of u-Service, 4) analyze the state-of-the-art u-GIS techniques.

• Spatial Information Research
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• v.23 no.3
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• pp.55-65
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• 2015

It was necessary for us to establish a U-City Integrated platform to handle information and to operate the processes in order to solve various social problems in the modern cities and environment. As time has passed, we have confronted to difficulty in handling massive data with limited storage and computing environment and in not satisfying all the new requirements and on time information from the publics. The bigger the cost of the operation of the platform got, the more doubts to keep and invest more to upgrade it arose. Here, we investigated the limitations of the U-city platforms and analyzed the additional requirements and each function of the platform. In order to meet the requirement, we applied new technologies to deal with massive data and suggested the infrastructure of computing environment. We will be expecting the cost decreasing effects and the benefit increasing effects from the enhancement of U-City platform.

• Journal of Information Technology Services
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• v.11 no.1
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• pp.325-340
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• 2012

KUbiquitous city(U-City) is a recent trend in urban planning and management across the globe. Currently, several typologies were developed and presented classifying U-City services, but validation research of these typologies are scarce. In this study, efforts were made to qualitatively validate the usability and practicality of a typology of u-city services. Using 228 U-City services identified in previous studies, classifying exercises were conducted against a typology. Three experts were involved in this expert heuristic exercise, against a most popularly used and comprehensive typology of U-City services. Findings indicates that the selected typology is high on comprehensive exhaustiveness, and empirical applicability while low on mutual exclusivity, simplicity and theoretical contribution. Implications for the typology improvement are suggested followed by limitations and directions for further research.

• Journal of Advanced Information Technology and Convergence
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• v.10 no.2
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• pp.73-81
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• 2020

The number of mobile devices roaming into a ubiquitous city (u-city) continues to rise as wireless systems have been widely deployed. The number of mobile devices also varies with time, and they tend to frequently change their locations. In addition, the available wireless access networks may belong to different domains, administrations, management, and internet service providers (ISPs). A fusion of overlapping heterogeneous wireless access networks (e.g., WiMax, Wi-Fi, LTE, etc.) serves the u-city in order to reach different coverage. In this context, technical challenges arise in mobility management for heterogeneous networks to realize their potential coverage and capacity benefits. This paper deals with the analysis of a decentralized mobility management support for u-City wireless network infrastructure. This scheme takes advantage of the features of the fully-distributed model of networked-based mobility management protocol to alleviate and realize the ubiquitous requirements of a u-City.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.14 no.6
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• pp.1447-1452
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• 2010

Ubiquitous society to build basic infrastructure in the power supply and power equipment safety is important. u-City in order to prevent the disaster of u-IT Power Equipment Performance Module and the security for the safety of the u-City is necessary. In this paper, the power unit of u-IT module, temperature sensor, humidity sensor, equipped with sensors arranged throughout the fire, and home distribution boards, Home Network Wall-Pad, Blocker, MPNP black boxes, arc detection, arc safety equipment, outlet of the modular performance evaluation methods and security methods will be studied. u-IT power devices and sensors to analyze the information conveyed by proactive risk and ensure safety, access control, authentication, security safeguards, such as u-IT integrated management system for electrical safety and strengthen the security, safety and security with a u-City will contribute to the construction and operation.

• Proceedings of the Korea Association of Information Systems Conference
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• 2005.12a
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• pp.349-358
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• 2005

Recently, developing U-City as an integrated set of ubiquitous spaces has been regarded as a promising field in realizing ubiquitous computing technology. However, well-organized requirement analyses of U-City to declare what kinds of ubiquitous space services are needed and which ubiquitous computing technology should be incorporated to come up with the needs are still insufficient. Hence, the aims of this Paper are to Propose a set of unique U-City construction philosophies and to analyze which services Should be offered in the ubiquitous Space services in U-Cities. A field survey to the citizens who are potential end users of the ubiquitous space services was conducted to analyze the success factors of U-City using CSF methodology. Focused group interview with professionals in the field of ubiquitous computing technology in Korea was then performed to identify the relationship of the ubiquitous space services and the critical success factors.