• The Journal of Korean Institute of Communications and Information Sciences
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• v.38C no.8
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• pp.692-698
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• 2013

As the mobile marketing through the smartphone has gradually increased, the smartphone application services using the AR marker, QR codes and augmented reality have attracted much attention. Furthermore the outdoor advertising is migrated to LED signage, which brings the visible light wireless communication technologies to the trial for mobile marketing. In this paper we present the implementation of AR marker-based URL access application services through smartphone camera using visible-light wireless communication technologies. We analyze the performance of the implemented system in terms of connection time and success rate.

• Journal of the Korea Society of Computer and Information
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• v.16 no.2
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• pp.153-163
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• 2011

Smartphone is a mobile device which can perform better than feature phone. Recently, growth in demand for advanced mobile devices boasting powerful performance, market share of smartphone is increasing rapidly in mobile device market, for example, iphone and android phone. Smartphone can provide many functionalities, e-mail, scheduler, word-processing, 3D-game, and etc, based on its powerful performance. Thus, various secret information is integrated in smartphone. To provide service, sometimes, smartphone transmits informations to outside via wireless network. Because smartphone is a mobile device, user can lose his/her smartphone, easily, and losing smartphone can cause serious security threats, because of integrated information in smartphone. Also data which is transmitted in wireless network can be protected for privacy. Thus, in present, it is very important to keep secure smartphone. In this paper, we analyze threats and vulnerabilities of smartphone based on its environments and describe countermeasures against threats and vulnerabilities.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2013.10a
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• pp.1048-1050
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• 2013

Mobile devices or smartphones are rapidly becoming the central computer and communication network device. Recently, smartphones are programmable and come with a growing set of cheap powerful embedded sensors, such as an accelerometer, digital compass, gyroscope, GPS, microphone, and camera. In this paper, we discuss the wireless gas sensing service architectural and develope the gas sensor monitoring services using smartphone and web server.

• Proceedings of the Korean Information Science Society Conference
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• 2012.06b
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• pp.28-30
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• 2012

2010년 이후 국내 스마트폰 보급은 급속히 증가하여 2011년에 이미 스마트폰 가입자수가 2천만명을 넘어서면서 계속하여 증가하고 있으며, '12년 하반기에는 휴대폰 가입자중 79%가 스마트폰을 차지할 것으로 예측하고 있다(마케팅인사이트, '12.02). 이러한 스마트폰의 증가와 함께 스마트폰을 이용한 각종 서비스 및 업무의 비중도 증가하고 있으며, 이에 대한 정보보안의 문제도 이슈화 되고 있다. 특히 스마트폰의 경우 일반 PC와 비교하여 보안에 취약하며, 특히 분실/도난 등으로 인한 개인정보의 유출위험성 또한 높다. 본 연구에서는 국립방재연구원에서 추진중인 스마트 재난피해조사를 바탕으로 정보보안의 현안을 분석하였으며, 스마트폰 내 정보저장에 대한 보안취약을 해결하기 위해서는 MDM(Mobile Device Management)를 이용한 단말의 통제 뿐만 아니라 1차적으로 단말의 접근을 통제할 수 있는 얼굴인식, 지문인식 등의 인체인식기술과 저장된 정보의 해킹으로 인한 유출을 방지하기 위한 복호화 및 자동삭제 기능 등을 도입하여야 할 것으로 판단된다.

• Proceedings of the Korea Contents Association Conference
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• 2012.05a
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• pp.387-388
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• 2012

본 논문은 304명의 K여자대학교 학생 스마트폰 이용자(2011년 11월 20일~30일)를 대상으로 ${\blacktriangle}$스마트폰 서비스 이용현황 ${\blacktriangle}$스마트폰 제조사, 통신사, 약정기간, 교체기간 ${\blacktriangle}$모바일 앱 이용현황 ${\blacktriangle}$스마트폰 전용 정액요금제 종류 ${\blacktriangle}$스마트폰을 통한 SNS이용현황등의 스마트폰의 사용실태를 조사하고, 방송통신위원회 한국인터넷진흥원가 국내 만 12-59세 스마트폰 이용자의 온라인 설문지 유효응답자수 4,000명을 대상(2011년 5.29~6.9)으로 조사결과를 비교하여 대학의 학사행정관리, 학습콘텐츠 검색, 유용한 학습도구로 활용할 수 있는 미래대학의 모습을 제시하고자 한다.

• Journal of The Korean Association of Information Education
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• v.17 no.3
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• pp.253-264
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• 2013

We development the service that teacher and parent can control the smart phone of student in school and home, the name is I_smart_keeper. The service is composed of server system, teacher's application, parent's application and student's application. The control of student's phone in school is operated by school timetable and GPS(Global Positioning System) in smart phone. The student's phone is operating one of six policy. The six policy is 'emergency call only', 'specific application only', 'call only', 'call and text only', 'all allowed' and 'all lock'. The teacher can change the current policy with his or her phone, That is a the temporary policy can be applied on a day. In school hours, teacher is able to instruct student using application appropriate to the teaching. If student is leaving school early and located outside school, the service do free the student's phone by GPS of her or his phone. We show the Smart Health Indicator (SHI)that analyse the pattern of student's phone habit and SHI will guide a desirable student's phone habit. In home, parent can control child's phone. The service will help the risk reduction of a robbery case due to keeping student's phone by teacher in class. Currently one elementary school's all student use I_smart_keeper and three elementary school is testing to some class. The teacher's impression was very good and they usually use I_smart_keeper for class in positive light. Survey results for students with higher satisfaction.

• Journal of Satellite, Information and Communications
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• v.11 no.3
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• pp.18-23
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• 2016

Internet of things (IoT) is revolutionizing in the patient-Centered medical monitoring and management by authorizing the Smartphone application and data analysis with medical centers. The network connectivity is basic requirement to collect the observed human beings' health information from Smartphone to monitor the health from IoT medical devices in personal healthcare. The IoT environment built in Smartphone is very effective and does not demand infrastructure. This paper presents the smart phone deployed personal IoT architecture for Non-Invasive ECG Capturing. The adaptable IoT medical device cum Gateway is used for personal healthcare with big data storage on cloud configuration. In this approach, the Smartphone camera based imaging technique used to extract the personal ECG waveform and forward it to the cloud based big data storage connectivity using IoT architecture. Elaborated algorithm allows for efficient ECG registration directly from face image captured from Smartphone or Tablet camera. The profound technique may have an exceptional value in monitoring personal healthcare after adequate enhancements are introduced.

• Review of KIISC
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• v.21 no.1
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• pp.38-43
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• 2011

스마트폰은 어플리케이션 마켓의 활성화와 SNS 서비스의 이용이 증가하면서 사람들에게 많은 관심을 받고 있는 휴대기기이다. 스마트폰은 사용자의 기호에 따라 어플리케이션을 설치하여 개인화 할 수 있는 특징을 지녔다. 따라서 스마트폰은 사용자에 따라 다량의 개인 정보를 저장하고 있을 수 있으며, 카메라 모듈, GPS 모듈과 같이 상황 정보를 감지할 수 있는 센서들을 내장하고 있어 신뢰할 수 있는 강한 보안 서비스가 요구된다. 윈도우즈 폰 7은 기존의 윈도우즈 시스템이나 Xbox LIVE, Zune, Windows Azure 등과 연동할 수 있는 특징을 가진 모바일 운영체제이다. 본 논문에서는 모바일 운영체제 중 국내에 아직 잘 알려지지 않은 윈도우즈 폰 7의 보안 체계에 대해 분석한다.

• Information Systems Review
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• v.13 no.3
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• pp.47-63
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• 2011

The rapid spread of the Smartphone usage among the public has brought great changes to the overall society. Aiming to gain their competitiveness with better Smartphone service quality, manufacturers are endeavoring to keep the pace with the popularization of mobile internet and social changes. Researches on the Smartphone service quality are actively undergoing in the academic circles as well. A great many of studies ranging from the past mobile services to the recent Smartphone services have thus far focused on proposing the systematic arrangement and the typology in terms of service quality, which in turn have provided the theoretical foundation and broaden the scope of comprehension. Besides technical aspects of the mobile and Smartphone services, the earlier studies in the behavioral domain, however, only took into considerations the positive aspect of users' satisfaction with the quality of services via new media devices like Smartphone. The rationale behind this mainly comes from the assumption that as the opposite definition of satisfaction is dissatisfaction, the services are not adopted if dissatisfied. However, it is not always true to conclude that service users are satisfied when the service is functionally fulfilled and dissatisfied otherwise. That is because there exist some cases that quality attributes provide satisfaction when achieved fully, but do not cause dissatisfaction when not fulfilled. And there also exist other cases that quality attributes are taken for granted when fulfilled but result in dissatisfaction when not fulfilled. To account this multi-dimensional feature of service quality attributes in relation with user satisfaction, this study took advantage of Kano model following the identification of a set of the Smartphone service quality attributes by investigating the previous studies. Categorizing of the service quality elements reflecting the customers' needs would perhaps help manage Smartphone service quality, enabling business managers to identify which quality attributes more emphasis to put on and what strategy to establish for the future.

• The Journal of Society for e-Business Studies
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• v.17 no.3
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• pp.1-14
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• 2012

As the techniques of electronic and information are advancing, the computing power of a smart phone is becoming more powerful and the storage capacity of a smart phone is becoming larger. As the result, various new useful services are becoming available on smart phones. The context-aware service and mobile augmented reality have recently been the most popular research topics. For those newly developed services, identifying the object in the picture taken by the camera on the phone performs an extremely important role. So, many researches of identifying pictures have been published and most of them are based on the time consuming image recognition techniques. On the contrary, this paper introduces a very fast and effective method of identifying the objects on the photo making use of the sensor data obtained from the smart phone and electronic maps. Our method estimates the line of sight of the camera with the location and orientation information provided by the smart phone. Then it finds any element of the map which intersects the line of sight. By investigating those intersecting elements, our method identifies the objects on the photo.