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조창훈(Changhun CHO),차민근(Minguen CHA),윤은아(Euna YOON),이경훈(kyounghoon LEE) 전남대학교 어업기술연구소 2017 어업기술연구소보고지 Vol.10 No.1
In this study, we confirmed that the weight of herring would increase as its length increases and the relationship between the length and density of the herring would be low. In addition, the sound-speed contrast, which is one of the important factors of the hydro-acoustic impedance, increases as water temperature increases while the sound-speed contrast decreases. In order to reduce the error of the TS measurement, it is necessary to apply a proper sonic contrast to the water temperature and behavior patterns of pacific herring. Based on the impedance results of pacific herring, it should be used as the basic data of hydro-acoustic scattering characteristics and identification of the pacific herring.
EdgeCPS를 활용한 사용자 인증 및 임무 자동화를 통한 드론 배송 시스템 개선
조민근,백민기,최으뜸,고동범,강성주,이성진,MinGuen Cho,MinKi Beak,EuTeum Choi,DongBeom Ko,SungJoo Kang,SeongJin Lee 대한임베디드공학회 2023 대한임베디드공학회논문지 Vol.18 No.4
Currently, various companies are actively participating in research and development of drone delivery services. Existing studies do not comprehensively provide integrated functions for future drone delivery services such as mission automation, customer verification, and overcoming performance limitations, which can lead to high manpower demand, reduced user service trust, and potentially overloading low-end devices. Therefore, this study proposes a drone mission automation system (DMAS) using EdgeCPS technology to provide the three aforementioned functions in an integrated manner. Real-world experiments were conducted to evaluate the proposed system, demonstrating that the DMAS components operate according to the specified roles in the delivery scenario. In addition, the system achieved user verification with a similarity of more than 90% in the process of receiving the product, and verified a faster inference speed and a lower resource share than the existing method.