• Asia pacific journal of information systems
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• 제22권4호
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• pp.125-149
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• 2012

As the smart phone is propagating rapidly, the importance of mobile advertisement has also grown. One of the main characteristics of the Internet and smart phone advertising is that they can deliver personalized advertisements to each customer. The smart phone enables the identification of additional personalized information such as the customer's location and the accessibility to the site at any place any time. As the Internet platform becomes richer, firms that offer the ad services via the wired PC Internet and wireless smart phone are seeking various types of personalized ads. However, their service platform and Information and Communication Technology (ICT) platform should be suitable to the characteristics of personalized ads. This research explores various types of personalized ad methods and evaluates their adequacy encompassing four types of ad service platforms (such as search portal, news portal, e-mall servers, and SNS) and two types of ICT platforms (PC Internet and smart phone). To this end, we classified the personalized ads into seven types: three basic types and four composite types. The basic types of ad methods are identified by considering the current activity that the customer is engaged, the individual profile and log history, and the customer's current location or planning location. Four composite types of ad methods are constructed as the combination of these basic types. For those types of ad methods, we evaluate whether each ad method adequately maps with four types of ad service platforms and two types of ICT platforms. We proposed a metric of evaluation and demonstrated the concept with illustrative numbers. Specifically, we analyze and compare personalized ad methods in three ways. Firstly, the possibility of implementing a personalized ad method on the platform is analyzed to confirm the degree of suitability. Secondly, the value of personalized ad method is analyzed based on the customer accessibility. Lastly, expected effectiveness for each personalized ad method is computed by multiplying the possibility and the value. Through this kind of analysis, the ad service providers as well as advertising companies can evaluate what kinds of personalized ad methods and platforms are possible and suitable to maximize their ad effectiveness on the Internet and smart phone platforms.

• 대한영양사협회학술지
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• 제22권3호
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• pp.225-231
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• 2016

The study suggests the possibility of using internet of things for a dietary intake survey. The development scenario of the dietary intake survey was composed of a weighing sensor for measuring food weight, bluetooth module for communicating through smart-phones, and smart-phone application. The weighing sensor attached to the bottom of utensils was designed to measure the weight of initial food & food eaten, and the results were transmitted to the smart-phone through the bluetooth module. The exclusive application in the smart-phone displayed the results of the amount of food intake, calorie intake, and eating rate. Through this system, subjects could continuously monitor their dietary intake & eating rate and recognize their actual eating environment, which leads to prevent overconsumption of food intake & form balanced eating habits. Based on this system, we need to consolidate and develop a weight control program.

• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2011년도 추계학술대회
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• pp.299-302
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• 2011

최근 인터넷전화는 IP기반에서 유선과 무선을 이용하여 음성뿐만 아니라 멀티미디어 정보전송을 제공한다. 유무선 인터넷전화는 네트워크상에서 인터넷전화 호 제어 신호 및 통화 내용의 불법 도청이 용이하며, 서비스 오용 공격, 서비스 거부 공격의 대상이 될 수 있는 등 기존 유선전화에 비해 여러가지 보안취약점이 존재한다. 본 논문에서는 인터넷전화 단말에서 IP Phone 정보를 획득하기 위한 스캐닝을 통해 IP Phone의 패스워드를 확인하고, 관리자 페이지를 통해 로그인을 성공한다. 그 후 IP Phone 관리자 페이지를 접속한 후 VoIP 설정 화면으로 전화번호, 포트번호, 인증번호 등을 수정한다. 또한 관리자 페이지에서 등록되어 있는 IP Phone들의 통화기록을 확인하여 개인정보 해킹을 연구한다.

• 한국인터넷방송통신학회논문지
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• 제11권3호
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• pp.67-74
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• 2011

최근의 IT산업에서 스마트폰 보급이 나날이 증가함으로써, 스마트폰을 이용하여 홈 네트워크 환경에 정보가전기기인 디지털 TV, 인터넷 냉장고, DVD, 디지털 비디오, 통신기기 등 지능형 단말을 융합한 차세대 네트워크 가전제품을 지칭하는 인터넷 가전으로 발전하고 있는 추세이다. 본 논문에서는 스마트폰(안드로이드)을 이용하여 댁내 정보가전기기 제어시스템을 설계하고 구현하였다. 또한, 누구나 쉽게 접근할 수 있는 스마트폰을 이용하여 언제 어디서든지 정보가전기기를 제어하기 위한 인터페이스를 설계 및 구현하고, 이를 통해 댁내의 정보가전기기를 제어하고 모니터링 한다.

• 한국항해항만학회:학술대회논문집
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• 한국항해항만학회 2006년도 International Symposium on GPS/GNSS Vol.2
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• pp.317-320
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• 2006

Ships and their cargos have been managed safely by positioning report system. However, little attention has been paid to safety of crew's works with danger. The attempt that used PHS inboard was before by the present authors. However, the functions were just voice call and mail exchange. The data acquisition from the terminal by proper control was not possible. Thus the position of the terminal was not available. As for the cell phone of next generation, GPS receiver and wireless LAN are installed by manufacturers. Therefore, we propose a system which uses a cell-phone with GPS receiver on a ship in order to promote the safety of ship's crew. We checked the availability of cell-phone GPS receiver at thirty different points inboard. The positioning was not possible in the areas further than 4m from the window. Then, we proposed the system which follows the positions of the crews and confirms their safety inboard by using the VoIP (Voice over Internet Protocol) function by wireless LAN.

• International Journal of Internet, Broadcasting and Communication
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• 제12권3호
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• pp.233-243
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• 2020

The purpose of this study was to investigate the changes in the use of mobile phones due to COVID-19. The subjects of this study were those who lived in Jeju City and used their own mobile phone for more than 2 years, and were included in adult men and women aged 15 to 80 years old. The purpose of this study was explained and a questionnaire survey was conducted on 156 people who agreed. The survey period lasted from June 15 to July 4, 2020. As a result, the daily use time and function of the mobile phone, which were used more than before the occurrence of COVID-19, increased. This was a statistically significant trend (p<0.001) with increasing trend after COVID-19 in all age groups. In addition, in the mobile phone function, all age groups used more 'KakaoTalk' than 'call', but it was found that only the group with less than 1 hour of daily using time used the call function a lot.

• 디지털융복합연구
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• 제4권2호
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• pp.127-142
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• 2006

This paper uses a Mobilans case based on software system to derive the results of our study. Recently, the mobile phone payment entered its matured stage and became most frequently used payment method in all internet sites. And, in order to prepare for the future ubiquitous market, every mobile phone payment methods has different speed of development, market status and target segments in the market. This paper also discusses about the background and current status of Korean mobile phone payment market using SMS(Short Message Service) to purchase items on internet which is growing sharply every year. Also, we try find the key factors to succeed in this growing market. In addition to safety, delayed payment and the immediateness for use of mobile phone, we also suggest that a highly developed hardware system is an additional factor under the increased demands for the convenience with various applications.

• 한국인터넷방송통신학회논문지
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• 제15권2호
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• pp.151-156
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• 2015

스마트폰의 사용이 크게 활성화됨에 따라 거의 모든 사람들이 항상 휴대하고 있으며, 실외에서는 GPS 위성시스템을 이용하여 자신의 위치를 인식하고 관련된 응용 서비스를 제공받을 수 있다. 그러나 실내에서는 스마트폰의 위치를 인식하기도 어렵고 TDOA 방식의 상대 위치를 측정하는 방식에서는 글로벌 좌표를 인식할 수 없다. 본 논문에서는 음향 신호를 이용한 TDOA 방식의 상대 위치 추정 시스템에서, GPS 수신기와 지자기 센서를 이용하여 실내에서 스마트폰의 글로벌 좌표를 인식하는 시스템이 제안되었고, 그 성능과 실험 결과가 기술되었다.

• 한국인터넷방송통신학회논문지
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• 제10권3호
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• pp.173-178
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• 2010

본 연구는 스마트폰 환경의 소셜 네트워크 서비스를 다룬다. 모바일 소셜 네트워크 서비스는 증강현실 기술과 결합하여 발전하고 있다. 따라서 증강현실과 소셜 네트워크를 연구 대상으로 한다. 본 연구에서는 스마트폰에서 고려할 수 있는 소셜 네트워크 분석의 방법론을 소개한다. 소개된 방법론과 항목 그리고 증강현실은 스마트폰의 향후 연구에 도움을 줄 것으로 기대된다.

• 컴퓨터교육학회논문지
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• 제14권3호
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• pp.13-23
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• 2011

정보문화지수는 국민의 정보 활용 수준을 지식, 도덕, 감성, 실천의 관점에서 종합적으로 진단하고 계량화한 수치로 네티즌의 정보문화수준을 나타낸다. 한편, 최근 정보 활용 시 접근하게 되는 인터넷이나 휴대폰 중독이 심각해지면서 이들 관점에서의 정보문화지수에 대한 정의와 방향에 대한 분석이 필요하다. 본 논문에서는 정보문화지수가 높은 사람들의 특성을 분석하고 동시에 인터넷 및 휴대폰 중독 정도를 지수와 결합하여 통계적 분석을 실시함으로써 현재 정의된 정보문화지수의 의미를 분석하고 개선방향을 제안한다. 특히, 정보문화지수의 4가지 상위지표들 중에서 정보실천 영역의 의미를 분석한다. 이를 위해 설문지를 작성하여 설문을 실시하고 기본 통계적인 분석 및 구조 방정식 모델을 이용한 분석을 실시하고 그 결과를 제시한다.