• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2010.10a
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• pp.698-700
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• 2010

In recently, various types of applications have been developed according the smart phone has become popular. There are many kinds of multimedia, game, information, education, etc according to each user. Most of the linguistic contents in mobile based are concentrated on learning foreign languages like English, Japanese, Chinese compared that the development of contents for Korean education is imperfect. In this paper, so, we implement the linguistic contents for elementary Koran education of foreigners based on android OS to use them by smart phone.

• Journal of Korean Library and Information Science Society
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• v.48 no.1
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• pp.397-421
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• 2017

The utilization and integration of different reading technologies has increased exponentially in recent years with no limits in the foreseeable future. This is no surprise, as the versatility of new technology devices makes information accessible at any minute of any day anywhere in the world. The possible reading uses for such devices are immeasurable, and have already seen widespread usage by readers all over the country. While these statements are more or less obvious, more research must be conducted to discover which means are the most effective and why. This study aims to provide a basic framework for analyzing the organization and quality of mobile application devices for reading comprehension purposes. The study also hopes to highlight and/or clarify more effective reading means with differing technologies.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.15 no.2
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• pp.477-483
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• 2011

These days, smart phones are being widely used and accordingly, a larger number of consumers have become interested in them, thus many applications are being developed with a variety of forms. There are various fields in it, such as multimedia, games, information and education, as per users' disposition and characteristics. As for the current contents for language education in mobile environment, the market is dominated by contents for learning foreign language such as English, Japanese and Chinese, while contents for educating Korean language are minuscule. In this paper, thus, we design and implement a elementary Korean language educational contents for foreign beginners who can use the contents at their smart phones with Android OS.

• Journal of Internet Computing and Services
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• v.5 no.4
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• pp.43-51
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• 2004

The convergence of mobile communications and handheld computers offers the opportunity to develop technology that will assist individuals and groups to learn anytime, anywhere. In this thesis, we suggest a learning model for educational mobile contents, and implement a mobile contents for English vocabulary learning. The mobile contents consist of two parts: vocabulary learning and vocabulary evaluation. The vocabulary learning provides the mobile learner not only the display of English vocabulary but also the pronunciation of native speaker. The degree of learning achievement is evaluated by the quiz program of game style. Accordingly, the proposed prototype system for English vocabulary learning is designed and implemented, as an exemplar of personal mobile systems for edutainment mobile learning.

• 한국HCI학회:학술대회논문집
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• 2007.02c
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• pp.158-163
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• 2007

본 논문의 목적은 PC 용으로 구축되어 있는 웹 컨텐츠를 PDA나 휴대폰과 같은 다양한 멀티플랫폼 단말기에도 제공할 수 있도록 하는 것이다. 기존의 대부분 방식은 모든 단말기에 서비스 할 수 없으므로 단말기용으로 모바일 컨텐츠를 미리 생성해 놓고 그 제한된 단말기에만 서비스하였다. 이때 가장 큰 문제점은 하나의 PC 웹 컨텐츠를 이용하여 다양한 하드웨어 특성을 가지는 모바일 단말기 마다 재생 가능한 모바일 컨텐츠를 모두 생성하는 것이다. 본 논문에서는 MPEG-21 멀티미디어 프레임워크를 이용하여 유선 웹 컨텐츠를 다양한 멀티 플랫폼 단말기에 실시간으로 맞추어 서비스하는 시스템을 제안한다. 제안한 시스템은 다양한 단말기별로 모바일 컨텐츠를 생성하는 것이 아니라 모바일 컨텐츠의 구성 및 표현방법을 MEPG-21 의 DIDL 을 이용하여 중간언어로써 기술한다. 그리고 멀티미디어 데이터 부분(Resource)만 Off-line으로 미리 변환한다. 이동단말기 접속 시 멀티미디어 서술(Description)부분을 실시간으로 변환하고 그 단말기가 사용 가능한 변환된 리소스를 통하여 단말기에 적합한 모바일 컨텐츠를 실시간으로 생성하여 서비스한다. 본 논문은 추가적으로 모바일 웹 서비스를 제공하는 과정에서 발생할 수 있는 응답시간 지연 현상을 최소화 하기 위하여 선 서비스 후 변환 방법을 제안한다.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.13 no.4
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• pp.239-247
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• 2013

This study is aimed to perform the qualitative evaluation based on the ARCS Model of educational mobile applications for smart phones. The evaluation has been performed targeting 60 students who attending the subject of informational education in 3 different universities in 2012 by allowing them to select the available educational mobile App installed in their smart phone. After, the level of persistent learning-intension from each student and the efficacy of ARCS motivational strategy was measured at learner's perspective. The structural equation model(SEM) was established and analyzed with PLS method to understand the relationship between the ARCS motivational strategy and the persistent learning-intension. The results of the study could be summarized as followings. First, the educational mobile App in various the motivational strategies showed different results that is the highest attention as well as the lowest satisfactory level. Second, the relevance in motivation strategies had the statistically significant effect in attention, confidence, and satisfaction. On the other hand, the other factors of attention, relevance, and confidence showed statistically significant effect in satisfaction. Finally, result demonstrate that the relevance is the critical factor inducing the significant effect in persistent learning-intension among the motivational strategies.

• Proceedings of the KSRS Conference
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• 2006.03a
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• pp.41-44
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• 2006

본 연구에서 3차원 지형공간정보의 구축 및 처리, 가시화를 위하여 개인용 PC와 임베디드 단말기의 포켓 PC환경에서 자료 호환 및 동시 운영이 가능한 실시간 3차원 GIS의 Prototype의 설계 및 구현과 적용 실험을 하고자 한다 OpenGL(Open Graphic Library)과 OpenGL|ES (Embedded System)를 활용하여 도시경관을 구성하는 주요객체인 지형, 건물, 교통, 식생 등을 통합적으로 저작 및 3D 객체 모델링 및 렌더링이 통합 및 개별 운영 시스템을 설계하고 구현하였다. 구현 단계에서 개인용 PC 운영환경에서는 기능성 향상에 중점을 두어 공간 데이터베이스 설계, 텍스처 영상 매핑처리, 대용량의 3차원 공간정보 처리 및 관리, 가시화, 렌더링, 모델링 기능들을 제공하며, PDA 휴대용 단말운영환경을 지원하는 모바일 시스템에서는 실시간 모바일 저작기능과 렌더링 기능에 주안점을 두어 개발하였다. 한편 연구 결과로 구현된 시스템은 원도우 XP 기반의 개인용 PC와 PDA 단말기 상에서 3D 객체 자료구조가 호환되어 향후 다양한 응용이 가능할 것으로 생각된다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2014.05a
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• pp.458-461
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• 2014

CRDI 시스템에서의 ECU는 센서의 정보를 분석하여 최적의 조건으로 엔진이 동작하도록 한다. 이러한 ECU의 프로그램 부분과 데이터 부분은 제작자에서만 변경할 수 있어 엔진을 진단하는 진단기의 경우 전문가가 아니면 사용하거나 내용을 이해하기가 쉽지 않다. 본 연구에서는 산업용 차량의 엔진 데이터 값을 OBD-II 표준을 사용하여 입력받아 사용자 중심의 진단기를 PC 및 모바일용으로 개발하였다. 본 연구의 진단기는 운전자 중심의 진단 서비스를 제공하며, 자동차 고장진단 신호 및 센서 출력 신호를 유선시스템과 무선 시스템인 블루투스 모듈을 이용하여 실시간 통신이 제공되도록 함으로써 엔진이상으로 인한 사고의 예방이 가능하고, 최적의 조건으로 엔진이 동작하므로 과도한 배기가스 배출이나 불완전 연소가스 배출과 같은 대기환경오염을 예방할 수 있어 최근 대두되고 있는 에코산업에도 이바지 할 수 있을 것이다.

• Journal of the Korean Association of Geographic Information Studies
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• v.23 no.4
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• pp.173-183
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• 2020

In the midst of the aging of underground facilities in urban areas and anxiety about road excavation safety accidents, the Ministry of Land, Infrastructure and Transport began to build Underground Geospatial Infomation Map from 2015 as part of the 「ground subsidence prevention measures」 and efficient use of underground spaces. So, the scope is spreading every year. The current Underground Geospatial Infomation Map information is web-based and is operated in a desktop environment, so it is true that there are some limitations in its use in a field environment such as an excavation construction site. The Underground Geospatial Infomation Map, built and operated in a web-based environment, is a large-scale 3D data. Therefore, in order to service by transmitting data to the field without delay, it is necessary to lighten the Underground Geospatial Infomation Map data. In addition, the current Underground Geospatial Infomation Map is not unified in data formats such as 3DS and COLLADA, and the coordinate system method is also different in relative coordinates and absolute coordinates. In this study, by analyzing domestic and overseas prior research and technical use cases, a mobile Underground Geospatial Infomation Map data format and a lightweight method were presented, and a technology development was conducted to create a mobile underground space integration map in the presented format. In addition, the weight reduction rate was tested by applying 3D data compression technology so that data can be transmitted quickly in the field, and technology was developed that can be used by decompressing 3D data compressed in the field. finally, it aims to supplement the technology experimentally developed in this study and conduct additional research to produce it as software that can be used in the excavation site and use it.

• Journal of Digital Convergence
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• v.13 no.3
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• pp.193-199
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• 2015

PUSH technology is a technology that can transfer server information without user's request and it is very useful in various areas along with mobile applications. This paper suggest a suitable application model that can utilizes the PUSH technology and mobile devices by finding a useful area. For this, AdMan, a mobile application which can utilize the PUSH technology and mobile devices has been developed. AdMan is a mobile application that developed once and can be able to run on both Android and iOS based mobile devices, since it was developed by using a tool called m-Bizmaker. AdMan is a customer management and advertisement system that can bring big efficiency by utilizing the PUSH technology and mobile application under the today's mobile environment, and it is a good model of ICT technology application of modern society. As an application that can maximize the utilization of the PUSH technology and mobile devices, AdMan can realize better effectiveness if it run on a PUSH server.