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IPTV의 교육 및 엔터테인먼트 콘텐츠를 위한 교육 학습 반응 시스템 (Stimulus Tester) 연구
백승현 ( Seunghyun Beak ),권대혁 ( Daehyuk Kwon ),이혜란 ( Hyeran Lee ) 한국인터넷정보학회 2010 인터넷정보학회논문지 Vol.11 No.5
이 시스템의 개발 목적은 상업화의 화두인 교육과 엔터테인먼트분야에서 새롭게 제작한 교육용 콘텐츠를 이용하여 현재보급이 활성화중인 IPTV 상용화에 일조하는 것이다. 교육적 활용을 위하여 반응시험기(Stimulus Tester<sup>TM</sup>)를 이용하였다. 반응시험기는 리모컨 또는 제 3의 도구로 학습 한 후 이에 대한 피드백으로서 반응 속도를 부여하는 시스템을 말한다. 이 시스템에서는 주어진 문제 해결 시간 동안에 학습자가 반응을 하면 정오반응 여부 및 그에 문제 해결에 소요된 시간에 대한 피드백이 제시된다. 이 과정에서 정오반응 여부와 더불어 반응시간 피드백을 통하여 학습자가 스스로의 학습능률 정도를 확인하게 되고 이후 학습 증진에 도움이 되도록 하였다. 이 피드백 과정은 개인 PC에서 연결된 서버를 통하여 대상자에게 다시 PC로 포인트를 배분하는 과정을 통하도록 하였다. 이 시스템의 보급을 통하여 IPTV의 활성화와 더불어 교육 콘텐츠 개발로 인한 점진적인 산업의 활성화를 기대할 수 있을 것으로 보인다. 이 시스템을 통한 학습능률을 증진여부를 검증하기위하여 일반 남녀대학생을 대상으로 인터넷기반과 페이퍼기반의 학습증진여부를 측정하였으며, 그 결과 우수한 경우 최대 지속적인 7일 반응으로 2.47분에서 1.27분으로 학습효과가 51% 증가하였다. The purpose of this research is to help IPTV (Internet Protocol Television) commercialization using newly produced educational contents in the area of entertainment and education which currently popular in the market. It is called, Stimulus Tester<sup>TM</sup>, endow reaction time from the feedback of learning system, using a non-direct method, for example, a remote controller. Reaction time is the learning efficiency promotion mechanism that learner ascertain the learning condition of oneself by the time with solved questions from the solving the question in given time. Reaction time also play a key role that the learner may go through course which distribute the point to PC from Server. If this system is ready, we expect that the educational industry will gradually spread out. To verify the learning efficiency of this system, we concluded that the learning improvements, by an Internet-based and a paper-based test, of the increase by 51%, from 2.47min to 1.27min, during reaction of 7 days.
이원조(Wonjo Lee),최상훈(Sanghoon Choi),권대혁(Daehyuk Kwon),천동필(Dongpil Chun) 한국자동차공학회 2005 한국자동차공학회 춘 추계 학술대회 논문집 Vol.2005 No.11_2
Application of UHF RFID is proposed for the identification of vehicle, and the relevant tag is designed to specifically meet the ISO 18000-6 standard for read and write range at 912㎒ operational frequency. RFID tag is attached on the vehicle's front glass, and experiments are carried out to evaluate the RF characteristics of Tag/Reader communication, in that we verify if it is proving to be both practical and reliable in real-world environments.
최상훈(Sanghoon Choi),이원조(Wonjo Lee),권대혁(Daehyuk Kwon),천동필(Dongpil Chun) 한국자동차공학회 2005 한국자동차공학회 Symposium Vol.- No.-
Application of paper UHF RFID tag in accordance with the ERI standard ISO 24534/24535 is proposed for implementing EVI(Electronic Vehicle Identification) in the field of automatic vehicle identification using wireless non-contact technology. The relevant paper tag is designed to specifically meet the ISO 18000-6B standard for reading and writing EVIN at 910~914MHz operational frequency band. The paper tag is manufactured in the process of printing the antenna trace pattern by the conductive ink and drying it in the high temperature champer, which is followed by the bonding procedure with use of ACP. The tag is attached on the windshield of a vehicle and tested to verify if it satisfy the basic ERI specifications, and experiments are carried out to evaluate the RF characteristics of Tag/Reader communication. The proposed technology is proved to be both practical and reliable in real-world ITS environments.
최상훈(Sanghoon Choi),이원조(Wonjo Lee),김상국(Sangkook Kim),권대혁(Daehyuk Kwon),천동필(Dongpil Chun) 한국자동차공학회 2004 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
Automatic Vehicle Identification (AVI) is the key for secure and convenient hands-free access control. The RFID system provides this with its long read range (up to 5 meters), UHF passive tags and high-security transmission protocol. The operating frequency and low output power allows for installations worldwide the meeting the regulation standard for site licensing in each country. Examples of installations include both commercial and corporate parking areas, gated communities, ports, airports, industries, universities etc. RFID technology also provides products and solutions that bridge the gap between personal access and automatic vehicle access. RFID products are used in proprietary systems, standard access control systems as well as in major parking equipment systems.
최상훈(Sanghoon Choi),이원조(WONJO LEE),조항기(Hangki Cho),나희경(Heukyong Na),김상국(Sangkook Kim),권대혁(Daehyuk Kwon),천동필(Dongpil Chun) 한국자동차공학회 2003 한국자동차공학회 Symposium Vol.2003 No.8
An integrated antenna module for RSE in DSRC system is proposed, designed, and manufactured. A waveguide slot array antenna with strip dipoles is used and an analytical technique is applied for the fast design of the array antenna. An RF module is integrated into the waveguide assembly. The results show that the antenna module conforms to the DSRC standards with advantage of cost and size.<br/>