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유성은,김태홍,박태수,김대영,신창섭,성경복,Yoo, Seongeun,Kim, Taehong,Park, Taisoo,Kim, Daeyoung,Shin, Changsub,Sung, Kyungbok 대한임베디드공학회 2008 대한임베디드공학회논문지 Vol.3 No.1
The architecture of WSN based Vehicle Speed Measurement System is presented in this paper from Telematics Sensor Network(TSN) to Management System. To verify the feasibility of the system, we implemented the vehicle speed measurement system and evaluated the accuracy of velocity measured by the system in our testbed, an old highway located near Kyungbu highway. The system performed over 95% of accuracy at 80kmph from the measurement. In addition, the battery life time of the sensor node was evaluated by simulation analysis with real measured current consumption profiles. Assuming the maximum average daily traffic in 2005, the battery life time is expected to be over 1.6 year from the simulation result.
최정단(JeongDan Choi),민경욱(KyungWook Min),한승준(SeungJun Han),성경복(KyungBok Sung),계중읍(JungEup Kye) 한국자동차공학회 2012 한국자동차공학회 학술대회 및 전시회 Vol.2012 No.11
This paper introduces an Automatic Valet Parking platform for a vehicle automatically maneuvering from a traffic lane to the designated spot guided by roadside servers and mobile device. Two challenging problems are considered for the service: one is to consider both low-speed forward driving and several parking maneuvers at the same time with a few invehicle sensors and the other is that various sizes and types of passengers vehicles should be controlled in the whole limited area. With the assumptions of low speed and well installed roadside sensors, the platform to deal with three types of parking missions is proposed. We conduct a feasibility test for verification of our proposed architecture, and we suggest a possible approach to military service that autonomous vehicle can drive and valet-parking within the limited area.
자동 발렛 파킹을 위한 테스트 플랫폼 설계 및 주행 검증
우훈제(HoonJe Woo),손성효(SungHyo Son),문희창(HeeChang Moon),성경복(KyungBok Sung),김정하(JungHa Kim) 한국자동차공학회 2011 한국자동차공학회 부문종합 학술대회 Vol.2011 No.5
This paper introduces an automated valet parking system (AVP) which applies an autonomous driving concept into the current parking assistant system (PAS). The present commercial PAS technology is limited into vehicle. It means vehicle only senses and controls by and for itself to assist the parking. Therefore, the present PAS is restricted to simple parking events. But AVP includes wider parking events and planning because it uses infra-sensor network as well as vehicle sensor. For the realization of AVP, the commercial steering system of a compact vehicle was modified into steer-by-wire structure and various sensors like LRF (Long Range Finder) and camera were installed in a parking area. And local & global server decides where and when the vehicle can go and park in the testing area after recognized the status of environment and vehicle from those sensors. GPS solution was used to validate the AVP performance. More various parking situations, vehicles and obstacles will be considered in the next research stages based on these results. And we expect this AVP solution with more intelligent vehicles can be applied in a big parking lot like a market, an amusement park, etc.