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- 검색키워드
- 저자 : Jeonghoon Moon (검색결과 64 건)
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Implementation of an Integrated Controller for a Robot Hand Base on a Vehicle Communication System
JeongHoon Park,Chan-Woo Moon 보안공학연구지원센터 2014 International Journal of Control and Automation Vol.7 No.11
Intelligent robots commonly adopt Network-Based Control Systems (NBCS). For control of a robot hand or a robot head, many sensor data and control commands need to be transmitted in real time, so they have necessitated communication systems with high transmission capability. Traditionally, CAN is widely used for intelligent robots, but it presents bandwidths that are too low for the control of a high performance system. In this paper, the relation between the transmission period and the performance of a multi-motor control system is analyzed, and a multi-motor control system for a human robot hand is implemented based on the FlexRay communication system, which is an emerging in-vehicle communication network system. FlexRay parameter optimization for a robot system is studied, and a real position control test is conducted, to validate the implemented system.
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문정훈(Jeonghoon Moon),고형석(Hyoungseok Ko),김지원(Jiwon Kim),허승현(Seunghyun Her),강정운(Jungwoon Kang),윤동화(Donghwa Yoon),김민철(Mincheol Kim) 한국정보통신학회 2025 한국정보통신학회 종합학술대회 논문집 Vol.29 No.1
The aim of this study is to analyze the perception and behavior type based on the survey data, build a prediction model applying AI techniques, and propose an environmental program in order to derive customized strategies for solving the marine waste problem. The survey result data on the attitude toward perception and practice related to marine waste were cluster-analyzed, and through this, the respondents were classified into various types according to their perception and behavioral characteristics. By constructing a machine learning-based prediction model by utilizing the characteristics and demographic factors of each cluster, a system was prepared to predict individuals or groups that are highly likely to practice environmental protection in advance. Through this process, the main factors that influence the behavioral flow in solving the marine waste problem could be identified. Finally, based on the cluster type and prediction results, a customized environmental protection program suitable for each target group was proposed. By presenting these detailed strategies, it became possible to plan practical and scalable environmental campaigns that can be applied to the whole society. This study is significant in that it proposes concrete action plans to solve environmental problems by combining data-based analysis and AI technology, and it is expected to be used in future policy proposals and civic participation program planning.
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국제연구망(NREN) 기반 고대역 환경에서의 분산 HPC 플랫폼 구축 방안 연구
문정훈(Jeonghoon Moon),석우진(Woojin Seok),김기현(Kihyeon Kim) 한국통신학회 2022 한국통신학회 학술대회논문집 Vol.2022 No.2
최근 과학기술분야에서는 급증하고 있는 빅데이터에 대해 빠른 전송과 공유 그리고 이를 활용하기 위한 컴퓨터, 스토리지 및 다양한 협업환경에 접근하기 위해 고용량, 고성능 네트워크에 대한 수요가 빠르게 증가하고 있는 추세이다. 이러한 추세는 빅데이터를 빠르게 분석하고 처리하기 위한 인공지능 기반의 고성능 컴퓨팅 환경에 대한 요구도 함께 증가하고 있다. 그러나 고대역 네트워크의 전송 성능 문제와 인공지능 연산을 위한 GPU 기반의 컴퓨팅 자원은 부족한 실정이다. 따라서 이러한 문제를 해결하고 지원하기 위해 ScienceDMZ 기반의 빅데이터 고속도로 체계와 컴퓨팅 체계를 연계한 연구플랫폼을 국제연구망 환경에서의 구축 방안을 제안하였다.
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Joule-Heated and Suspended Silicon Nanowire Based Sensor for Low-Power and Stable Hydrogen Detection
Yun, Jeonghoon,Ahn, Jae-Hyuk,Moon, Dong-Il,Choi, Yang-Kyu,Park, Inkyu American Chemical Society 2019 ACS APPLIED MATERIALS & INTERFACES Vol.11 No.45
<P>We developed self-heated, suspended, and palladium-decorated silicon nanowires (Pd-SiNWs) for high-performance hydrogen (H<SUB>2</SUB>) gas sensing with low power consumption and high stability against diverse environmental noises. To prepare the Pd-SiNWs, SiNWs were fabricated by conventional complementary metal-oxide-semiconductor (CMOS) processes, and Pd nanoparticles were coated on the SiNWs by a physical vapor deposition method. Suspended Pd-SiNWs were simply obtained by etching buried oxide layer and Pd deposition. Joule heating of Pd-SiNW (<1 mW) enables the detection of H<SUB>2</SUB> gas with a faster response and without the reduction of sensitivity unlike other Pd-based H<SUB>2</SUB> gas sensors. We proposed a H<SUB>2</SUB> sensing model using oxygen adsorption on the Pd nanoparticle-coated silicon oxide surface to understand the H<SUB>2</SUB> response of Joule-heated Pd-SiNWs. A suspended Pd-SiNW showed a similar transient sensing response with around four times lower Joule heating power (147 μW) than the substrate-bound Pd-SiNW (613 μW). The effect of interfering gas on the Pd-SiNW was investigated, and it was found that the Joule heating of Pd-SiNW helps to maintain the H<SUB>2</SUB> sensing performance in humid or carbon monoxide environments.</P> [FIG OMISSION]</BR>
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