• 한국IT서비스학회지
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• 제17권2호
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• pp.17-33
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• 2018

The purpose of this study is to verify the moderating effect of mobile divide on the relationship between individual characteristics and the use outcomes of smart device. Data was collected through a survey for periods from May 12, 2017, to May 17, 2017. As a result of multiple regression analysis based on collected data, self-efficacy, information seeking desire and culture capital have a positive effect on the use outcomes of smart device. To examine the moderating effect of mobile divide, we conducted a hierarchical regression analysis by calculating the interaction variables of the independent variable and the mobile literacy. As a result of the analysis, it was found that mobile literacy has negative moderating effect between self-efficacy and the use outcomes of smart device. The results of this study can be interpreted as the higher the self-efficacy and information desire for ICT technology users are. In addition, it can be interpreted that the smart device is convenient in the cultural activities of individuals, and therefore, it is highly utilized. Next, among those who have excellent mobile use ability, those who have high confidence in ICT technology can be interpreted as having low utilization because they recognize that the benefits provided by smart devices are familiar and natural. The results of this study confirm that the digital divide problem in the smart environment is influenced by individual characteristics as well as demographic variables. Therefore, we expect the government to set appropriate policies considering the characteristics of individuals.

• 디지털융복합연구
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• 제12권3호
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• pp.383-390
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• 2014

최근에는 IT와 관광을 융합하는 IT관광 융합학문이 미래학문으로 떠오르고 있다. 융합학문은 소셜 데이터 분석에 열을 올리고 있다. 소셜 네트워크 서비스는 마케팅 분야에서 많은 활용되고 있으며 학습에 적용하는 사례도 증가하고 있다. 본 연구는 u-스마트 관광정보 시스템을 이용한 모바일 학습 콘텐츠를 설계한다. 이것은 관광정보 패턴 템플리트 라이브러리에 있는 관광정보 콘텐츠를 학습의 효과를 증대하기 위해서 모바일 학습 콘텐츠로 변환하는 것이다. 모바일 학습 콘텐츠 설계는 u-스마트 관광정보를 이용한 스마트폰 앱(App)과 XMI를 활용하여 열 개의 설계 과정을 거친다. 향후 이 설계과정을 거쳐 모바일 학습 콘텐츠를 구현함으로써 관광정보 콘텐츠 정보품질에 맞는 모바일 학습 콘텐츠를 생성하고 관광정보콘텐츠를 실시간으로 학습 할 수 있는 것이 최대 장점이다.

• IEIE Transactions on Smart Processing and Computing
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• 제3권5호
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• pp.325-330
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• 2014

The era of convergence is being applied to all areas of Information and Communication Technology (ICT). The convergence of broadcasting service and communication service almost occurs on smart devices including smartphone. The smart hybrid Digital Multimedia Broadcasting (DMB) is a typical example of the convergence of broadcasting and wireless communication service. The hybrid mobile broadcasting service can support seamless video, 3D, high quality, and additional data services based on network connection between the broadcasting and wireless network. The gateway and terminal (including apps on the smartphone) take the role of the main components on the hybrid service. This paper presents the service concept, main components structure, the implementation of gateway and terminals, and field test to the urban areas for the mobile hybrid system.

• 한국가시화정보학회지
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• 제10권2호
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• pp.25-31
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• 2012

High-performance smartphones, equipped with a digital camera and an application software, can render conventional bench-top laboratory instruments mobile at affordable costs. As the smartphone-based devices are portable and wireless, they have wide applications especially in providing point-of-care (POC) tests in resource-constrained areas. We developed a hand-held diagnostic system, Mobile SmartScope, which consists of a small optical unit integrated with a smartphone. The performance of the SmartScope was favorably compared with that of conventional light microscopy in detecting and quantifying red blood cells. We also evaluated the fluorescence detection limit of the SmartScope incorporated with a blue light-emitting diode and appropriate optical filters by using fluorescently labeled microbeads for intensity calibration.

• 한국컴퓨터정보학회논문지
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• 제24권5호
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• pp.67-72
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• 2019

The self-driving cars identify appropriate navigation paths and obstacles to arrive at their destinations without human control. The autonomous cars are capable of sensing driving environments to improve driver and pedestrian safety by sharing with neighbor traffic infrastructure. In this paper, we have focused on pedestrian protection and have designed an improved localization algorithm to track mobile users on roads by interacting with smart traffic lights in vehicle environments. We developed smart traffic lights with the RSSI sensor and built the proposed method by improving the Kalman filter algorithm to localize mobile users accurately. We successfully evaluated the proposed algorithm to improve the mobile user localization with deployed five smart traffic lights.

• 산업경영시스템학회지
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• 제36권2호
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• pp.39-48
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• 2013

The development of mobile communication technology is transforming the market of mobile communication devices, which is used to be merely for simple communication, into the one which offers features of personal digital assistant (PDA), fax communication and Internet access. Unlike a mobile phone which comes out as a complete package and whose functions cannot be changed, a smart phone can be upgraded by its user, adding or removing apps as he pleases. OS's of smart phones are iOS-based Apple, Google Android, Window Mobile, and others. Due to its convenience and powerful features, many people use smart phones its high price. On the other hand, consumer complaints are rising on poor A/S for occasional malfunction. This study analyzes how A/S cases can be classified into groups according to quality factors. We evaluate factors such as consumer impression and consumer satisfaction. By dual quality evaluation using KANO method, we would like to show the different A/S strategy for smart phones, compared with mobile phones.

• 유통과학연구
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• 제12권11호
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• pp.85-100
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• 2014

Purpose - Recently, the prevalence of high-speed mobile communication technology (4G) and mobile devices (smart phones, tablet PC, etc.) is leading innovative changes across all fields in society as well as business environments. Furthermore, a diversified mobile application service has spread rapidly through mobile devices such as smart phones and tablet PCs. Accordingly, the traditional E-government services paradigm has rapidly changed into mobile intelligence. To identify the influencing factors on the using intention of G4C smart app services, based on previous studies, the variables that influence using G4C smart app services are defined; these are user cognitive factors (perceived usefulness, perceived easiness), user characteristics factors (user innovativeness, self-efficiency, social influence), service quality factors (convenience, interactivity, accessibility), and system quality factors (instant connectivity, safety). Research design, data, and methodology - This is designed not only to collect data with a questionnaire survey (9/22/13~10/23/13) but also to test hypotheses with SEM by SPSS 21.0 and AMOS 21.0 in both Korea and China. All items are used with Likert 5 scales. A total of 643 questionnaires (Korea 318, China 325) are used. Results - The perceived usefulness and perceived easiness in user cognitive factors have positive influence on using intention. The user innovativeness, self-efficiency, and social factors in user characteristics factors have positive influences on using intention. The convenience, interactivity, and accessibility in service quality factors have positive influences on both reliability and using intention. Safety in system quality has positive influence on both reliability and using intention. Reliability has positive influence on using intention. The control variables (Korea and China) affect its control hypothesis. Strategies and implications are suggested to assist the public using the intention of smartphone's e-government services based on the results of the empirical analysis. The mobile application service can be considered a new emergence of the paradigm just like the government's on-line portal websites appeared in the past. Under this prevailing situation of mobile smart devices, to promote the success of e-government mobile APP services, accurate analysis and understanding of users should precede anything, to provide services to grasp and satisfy users' desire properly. Conclusions - This study proposes implications to help E-governmental officers and companies make strategies. First, this is expected to give some information on the understanding and knowledge regarding the process of G4C smart APP service based on the empirical study. Second, this helps to make future policies and ways about E-government G4C smart APP service. Third, it is proved that super speed mobile communication technology and devices including phones will be crucial to change the structure of E-government services in 2-3 years. Fourth, it is necessary to increase the trust and using intention of users. Fifth, considering what type of environment users are placed in, to present proper public information matching their inclination, is important. Finally, various ways of experiencing service to explore potential users and ceaseless public relations are required.

• 한국전자통신학회논문지
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• 제9권4호
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• pp.475-482
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• 2014

본 논문에서는 원거리에서 온실 상황 파악과 온실을 제어 할 수 있는 모바일 기반 스마트 온실 시스템을 구현하였다. 기존의 웹을 이용한 온실 시스템은 실시간으로 제어가 가능하지만, 사용 장소에 제한적이라는 단점이 있었다. 이를 해결하기 위하여 모바일 기기를 이용한 스마트 온실 시스템의 유용성을 강조하였다. 원거리에서 모바일기기(스마트폰 - 안드로이드 기반)에 설치되는 소프트웨어를 이용하여 온실의 상황을 파악하고 장비들을 제어함으로써 편의성과 생산성을 높였다.

• International Journal of Internet, Broadcasting and Communication
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• 제14권2호
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• pp.63-69
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• 2022

We develop a smart tourism information system that provides smart tourism services to free independent tourists (FITs) through various content distribution channels such as mobile apps, Instagram, YouTube, and chatbots. The smart tourism information system provides location and storytelling-based tourism information, accommodation, restaurant information, and recommended travel products so that tourists can create a travel itinerary based on personalized situation awareness. The smart tourism information system also provides smart tourism services using commercial maps, navigation, and weather forecast APIs from the Korea Meteorological Administration to provide smart tour guide services to tourists who travel according to the travel itinerary. In this paper, we develop the React Native app that provides smart tourism services provided by the smart tourism information system. The smart tourism React Native app has implemented two methods: a method that directly connects to the smart tourism information system, and a method that provides services by interworking through the GraphQL Query Language developed by META (Facebook). The smart tourism React Native app implements OSMU (One Source Multi-use) by providing tourism information from mobile apps, photos from Instagram, and drone videos from YouTube as an integrated UI.

• 디지털콘텐츠학회 논문지
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• 제11권3호
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• pp.315-322
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• 2010

본 논문은 스마트폰의 확산으로 인해서 변해가는 모바일 트랜드를 진단해보고자 한다. 디지털 기술을 기반으로 한 모바일 기술은 최근 폭발적으로 성장하고 있다. 모바일 기술은 단지 이동성에 그치지 않고 스마트함을 겸비해서 명실공히 스마트 노매드의 시대로 진화하고 있는 것이다. 스마트 노매드 시대를 이끌고 있는 것은 단연 스마트폰이다. 2010년 전세계 스마트폰 판매는 약 2.5억대 이상으로 전체 휴대폰 중 20%를 차지하고, 향후 그 비중은 더욱 커질 것으로 전망된다. 이렇듯 폭발적인 스마트폰의 확산은 다양한 동인이 서로 상호작용을 하며 이끌어가고 있다. 스마트폰 관련 업계 및 연구소의 각종 자료 및 전문가들의 인터뷰 내용을 종합한 본 결과 스마트폰의 확산은 대체로 네 가지 동인에 기인한 것으로 보인다. 첫째, 모바일 단말 기술의 발전, 둘째, 모바일 콘텐츠와 유통망의 획기적인 변화, 셋째, 제도적 뒷받침, 넷째, 일본의 도코모 아이모드와 애플 아이폰의 혁신적인 성공을 들 수 있다. 이번 스마트폰 열풍은 단순히 열풍으로 끝나지 않을 것으로 전망된다. 전세계적으로 관련 업계의 경쟁구도는 더욱 뜨거워질 것이며, 국내에서의 경쟁 또한 치열할 것으로 보인다. 이러한 국면에 대비하기 위해서는 취약한 소프트웨어 및 콘텐츠 역량을 확충하고 폭넓은 파트너십을 구축하는 동시에 차세대 기술 및 서비스 혁신을 통해 전세계적인 경쟁의 판도를 리드해나가야 할 것이다.