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김진웅(Kim, Jinwooung),양승원(Yang, Seungwon),김성아(Kim, Sung-Ah) 대한건축학회 2019 대한건축학회 학술발표대회 논문집 Vol.39 No.2
The explosive increase of new towns over the past few decades, it has also caused the aging of facilities in the city at the same time. However, the number of unmanaged urban facilities is increasing due to the inefficient method of facilities management. Quantitative data-based management is difficult because the maintenance of urban facilities is document-based analog methods. In this study, digital-twin analyzes the behavior of urban facilities, and it can identify the current state. To this end, digital-twin implemented through the linkage of a sensor attached to a physical model and a digital model based on the parametric method. Behavior that occurs in physical models reflect at digital models and visualizes in real-time. Obtained data from digital-twin makes raw data can convert as an indicator of the performance of facilities such as stress, the direction of s tress, the performance of the facility.
김동민(Dongmin Kim),양승원(Seungwon Yang),김도명(Domyung Kim),석진영(Jinyoung Suk),김승균(Seungkeun Kim) 한국항공우주학회 2020 韓國航空宇宙學會誌 Vol.48 No.7
본 논문은 PSD와 이종 센서 융합을 이용한 상대 항법 알고리즘에 대해 기술한다. 추종 시스템(Chaser)과 목표 시스템(Target) 간의 상대 항법을 수행하기 위해 하드웨어 시스템을 구축하고 알고리즘을 설계하여 시뮬레이션을 수행하였다. 이를 통해 상대 거리에 따른 오차 발생 경향을 확인하여 이종 센서 융합에 대한 분석을 수행하였다. 이후 구축한 하드웨어 시스템으로 지상 시험 환경을 구성하여 측정값을 획득하고 이를 후처리하여 상대 항법 알고리즘의 성능을 최종적으로 확인하였다. This paper describes a relative navigation algorithm using PSD(Position Sensitive Detector) and heterogeneous sensor fusion. In order to perform relative navigation between a target and a chaser, a hardware system is constructed and simulations are conducted, using the relative navigation algorithm considering the hardware system. By analyzing errors through the simulations, advantages of using the heterogeneous sensor fusion are found. Finally, navigation performance is verified under an experimental environment established to obtain sensor data from the hardware system for data post-processing.