통합 검색 | Korea Science

윤원섭;김종탁;이명규;김원균
- 자동차안전학회지
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- 제14권4호
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- pp.6-15
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- 2022
In this study, a traffic light recognition algorithm was implemented and validated for low-speed special purpose vehicles in an urban environment. Real-time image data using a camera and YOLO algorithm were applied. Two methods were presented to increase the accuracy of the traffic light recognition algorithm, and it was confirmed that the second method had the higher accuracy according to the traffic light type. In addition, it was confirmed that the optimal YOLO algorithm was YOLO v5m, which has over 98% mAP values and higher efficiency. In the future, it is thought that the traffic light recognition algorithm can be used as a dual system to secure the platform safety in the traffic information error of C-ITS.
https://doi.org/10.22680/kasa2022.14.4.006 인용 PDF KSCI

김재훈;전제춘
- 한국정밀공학회지
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- 제14권6호
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- pp.135-141
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- 1997
Low velocity impact test and compressive residual strength test after impact were performed by using Hercules AS4/3501-6[45/0/-45/90]$_{2s}$ laminated plate to investigate the low velocity impact damage behavior and the post-impact strength degradation on orthotropic composite laminate plate. Due to the lateral impact losd, the load path showed "" shape according to the laminate central deflection. Damage in a laminate occurs by inclined matrix crack at the damage initiation load stage and vertical matrix crack, occurs on the outer surface. Evaluating the compressive residual strength after the low velocty impact test, it could be found that there is a transient range where the compressive residual strength drop suddenly in the initial damage which is in the matrix crack range and the initial delamination area. is in the matrix crack range and the initial delamination area.
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차주헌
- 대한설비공학회지:설비저널
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- 제33권5호
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- pp.21-26
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- 2004
저속 PLC(power line communication, 전력선 통신)를 이용하여 홈 네트워크를 구현하고, 3차원의 가상환경에서 효율적으로 제어 및 모니터링이 가능한 홈 오토메이션 시스템에 대하여 소개하고자 한다.
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