• 제어로봇시스템학회:학술대회논문집
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• 2001.10a
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• pp.153.1-153
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• 2001

This paper describes a development of rehabilitation training system for the postural balance control. A new rehabilitation training system, designated as a virtual cycling system, was developed to improve postural balance control by combining virtual reality technology with an unfixed bicycle. In this experiment, 20 normal adults were tested to investigate the influencing parameters of postural balance control. In order to evaluate the usefulness and the training effects of the system, several parameters Including path deviation, cycling velocity, cycling time, center of pressure, and head movement were evaluated and analyzed quantitatively. Also, to improve the effect of balance training, the visual feedback information related to the subject´s weight shift was ...

• 제어로봇시스템학회:학술대회논문집
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• 2001.10a
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• pp.181.6-181
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• 2001

This paper describes a development of rehabilitation training system for the postural balance control. A new rehabilitation training system, designated as a virtual cycling system, was developed to improve postural balance control by combining virtual reality technology with an unfixed bicycle. In this experiment, 20 normal adults were tested to investigate the influencing parameters of postural balance control. In order to evaluate the usefulness and the training effects of the system, several parameters including path deviation, cycling velocity, cycling time, center of pressure, and head movement were evaluated and analyzed quantitatively. Also, to improve the effect of balance training, the visual feedback information related to the subject's weight shift was assessed to identify whether it was useful. It could be also known ...

• Proceedings of the Korean Association of Geographic Inforamtion Studies Conference
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• 2010.06a
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• pp.23-27
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• 2010

본 논문은 Green IT에 발맞취 세계적으로 이슈가 되고 있는 친환경 교통수단 활성 정책인 공용자전거 대여 서비스에서의 자전거 분실방지, 관리 문제에 대한 문제점을 해소하기 위해 스마트폰과 GPS, RFID 기술을 적용한 자전거 관리 시스템을 설계한다. 본 논문에서는 각 지역마다 설치되어있는 자전거 대여 키오스크에 RFID 리더를 설치하고 각 자전거에 RFID 태그를 부착함으로써 실시간으로 각 대여소별 자전거 보유 현황을 알 수 있고 이용자가 자전거를 대여 했을 때는 스마트폰 GPS 모듈이 자전거의 위치를 파악하고 암호화하여 이동통신망을 통해 관리 서버로 전송함으로써 공용자전거의 분실 및 도난 방지를 막고 스마트폰을 통해 다양한 부가서비스를 제공하여 이용자의 편의를 증가시킬 수 있는 시스템을 제안한다.

• Journal of the Korean Institute of Telematics and Electronics
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• v.17 no.2
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• pp.15-22
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• 1980

For efficient coding of graphic image data, the statistical characteristics for both Korean lettered images and English lettered images are measurpd and co mpared. Also, the measured run length distribution is compared with the run length distribution hased on Markov model. It is shown that the measured white run length distribution is more Bike a negative - power distribution than an exponential distribution . This fact is stronger in the Korean lettered images than is the English lettered images, The performances of four typical run length codes are compared for the same set of graphic data files,, and it is shown that the codes perform better in the Korean ]entered images :hart In Eng]isle lettered images.

• Proceedings of the Korea Information Processing Society Conference
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• 2016.10a
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• pp.886-887
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• 2016

최근 우리사회는 다양한 형태의 여가활동 및 생활체육에 대한 국민적 욕구와 열망과 더불어서, IoT기술발전 및 시장확대에 힘입어 다양한 스마트 자전거 제품이 등장하고 있다. 그러나 기존 제품의 경우 속도계 장치에 의한 주행기록을 분석할 수 없고, 스마트폰 앱의 경우에는 정확한 데이터 측정이 불가능하다. 이러한 문제점을 해결하기 위하여, 본 논문에서 개발한 스마트 자전거는 마그네틱 센서를 이용하여 거리, 속도, 시간 등을 측정/분석하고, 라이딩 정보를 어플리케이션에 저장하여 사용자가 라이딩 정보를 언제든 살펴볼 수 있다. 또한, 라이딩 속도에 따라서 LED의 색상이 변경되어 익스트림 라이딩 모드 및 LED제어, 스마트 자물쇠 기능 등을 제공한다.

• Journal of the Korea Safety Management & Science
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• v.8 no.1
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• pp.145-164
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• 2006

Value Engineering(VE) has been recognized by many companies as a powerful and innovative technical approach for cost down and improvement in function of product and service. VE is a discipline which use an organized, creative approach to achieve the required function at the lowest cost. For the Purpose of developing new product, at this paper used the method of 2nd look VE developing bike helmet, in the order of selecting target, function analysis and writing alternative. The development of Helmet by the process of VE job plan, achieve the cost reduction of 27 million won for developing new product with customer's need.

• Journal of the Korean Home Economics Association
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• v.42 no.9
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• pp.149-160
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• 2004

This study investigated the effectiveness of traffic safety education by integrated activities on children's traffic safety knowledge. Subjects were 55 kindergarten children aged 5 years old. The subjects were divided into experimental and control groups. Traffic safety education by integrated activities were applied in the experimental group for 6 weeks. The traffic safety knowledge test was administered to the experimental and control groups for pre-test and post-test analyses. ANCOVA was carried out for both groups to verify the hypothesis of this study. There were statistically significant differences of the children's traffic safety knowledge score including walking, bike, and automobile between the experimental and control groups. To conclude, traffic safety education by integrated activities was very effective to increase children's traffic safety knowledge.

• Proceedings of the Korea Information Processing Society Conference
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• 2016.04a
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• pp.607-610
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• 2016

최근 자전거 이용인구가 급격하게 증가함에 따라 자전거 교통사고 역시 증가하고 있다. 이에 DB를 통해 이용자에게 알맞은 자전거 도로에 대한 정보를 제공하여 자전거 도로를 활성화하고자 다음과 같은 프로젝트를 진행하게 되었다. 서울시를 중심으로 사용자의 지역, 선호하는 길이, 난이도에 따른 DB를 제공하여 알맞은 자전거 도로를 선택하도록 하였으며, 기업에게는 자전거 이용자의 DB를 제공하여 마케팅에 활용할 수 있도록 하였다.

• Proceedings of the Korean Association of Geographic Inforamtion Studies Conference
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• 2008.06a
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• pp.536-540
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• 2008

2005년 리우환경회의 이후 지구환경보전을 위한 노력이 확대되고 이를 위한 친환경 교통이용에 대한 요구가 증대할 뿐만 아니라 고유가 시대를 맞이하여 승용차의 효율성, 편리성에서 시작된 승용차시대의 한계성이 최근 서서히 드러나고 있다. 뿐만 아니라 승용차가 교통문제해결의 수단이 되지 못하며 지구환경에 악영향이 확대됨에 따라 최근 친환경적인 자전거에 대한 관심이 증대되고 있다. 따라서 본 연구는 2010년 까지 만들어질 "자전거 전용 도로망 조기구축계획"에 따라 이용객의 편익을 위해 설치되는 자전거 정거장들의 최적지를 선정하고, 최적지 위치와 각 도로 환경에 대한 정보와 대화형 자전거 GIS 웹 서비스를 만들어 제공하는 것이 본 연구의 목적이다.

• IEMEK Journal of Embedded Systems and Applications
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• v.9 no.4
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• pp.229-235
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• 2014

This paper presents an environmental navigation system which provides a guidance to the users of smart bicycle for a pollution-free route during their travel. The smart bicycle operates as a sensor node being composed of a distributed wireless sensor network over the whole urban area. Several environmental sensors measuring the amount of dust, CO, $CO_2$, $NO_2$ in the air are built into the smart bicycle to estimate the level of air pollution in the located area. Each smart bicycle sends/receives the measured sensor data and the city pollution map to/from the centralized server, which leads the bike-riders to a healthy route by providing the environmental navigation information. The proposed idea and its implementation give a useful insight on various application services with the distributed smart bicycles.