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- 저자 : 박상준(SangJun Park) (검색결과 132 건)
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선형 무선 센서 네트워크를 위한 시각소인 기반의 순차적 거리측정 기법
박상준,강정호,김용철,김영주,Park, Sangjun,Kang, Jungho,Kim, Yongchul,Kim, Young-Joo 한국정보통신학회 2017 한국정보통신학회논문지 Vol.21 No.10
Linear wireless sensor networks typically construct a network topology with a high reliability through sequential 1:1 mapping among sensor nodes, so that they are used in various surveillance applications of major national infrastructures. Most existing techniques for identifying sensor nodes in those networks are using GPS, AOA, and RSSI mechanisms. However, GPS or AOA based node identification techniques affect the size or production cost of the nodes so that it is not easy to construct practical sensor networks. RSSI based techniques may have a high deviation regrading location identification according to propagation environments and equipment quality so that complexity of error correction algorithm may increase. We propose a timestamps based sequential localization algorithm that uses transmit and receive timestamps in a message between sensor nodes without using GPS, AOA, and RSSI techniques. The algorithms for distance measurement between each node are expected to measure distance within up to 1 meter in case of an crystal oscillator of 300MHz or more.
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비행체의 특징을 고려한 공중중계 무인기 다중빔 안테나 운용 방안
박상준,이원우,김용철,김준섭,조오현,Park, Sangjun,Lee, Wonwoo,Kim, Yongchul,Kim, Junseob,Jo, Ohyun 중소기업융합학회 2021 융합정보논문지 Vol.11 No.4
In the era of the Fourth Industrial Revolution, the future battlefield will carry out multi-area operations with hyper-connected, high-speed and mobile systems. In order to prepare for changes in the future, the Korean military intends to develop various weapons systems and form a multi-layer tactical network to support On The Move communication. However, current tactical networks are limited in support of On The Move communications. In other words, the operation of multi-beam antennas is necessary to efficiently construct a multi-layer tactical network in future warfare. Therefore, in this paper, we look at the need for multi-beam antennas through the operational scenario of a multi-layer tactical network. In addition, based on development consideration factors, features of rotary-wing and fixed-wing aircraft, we present the location and operation of airborne relay drone installations of multi-beam antennas.
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박상준(Sangjun Park),오세욱(Sewook Oh) 한국자동차공학회 2024 한국자동차공학회 부문종합 학술대회 Vol.2024 No.6
This study is a study on the optimization design of the mechanism clutch to prevent reverse input to be used in mobility. The reverse input prevention clutch system is used in various ways throughout the industry and is expected to play an important role in improving the stability of the system. It is important to secure important functions in each system to ensure optimal performance, and this study is to lay the foundation for the optimization design of the mechanism clutch.
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국가형성기(1945-60) 한국YMCA 사회운동의 복원과 청년학생 조직화
박상준 ( Park Sangjun ) 한국사회사학회 2023 사회와 역사 Vol.- No.138
This paper, by using the case of Korea YMCA, aims to examine the formation process of civic movements in Korea during the country’s state-building period. The YMCA, which established itself as a representative Christian mass organization in Korean society during the modern era, experienced a break at the end of the Japanese colonial rule, and had to rebuild itself after liberation. But authoritarian rule which was supported by the U.S military and Syngman Rhee government prevented South Korean society from becoming a civil society. This made it limit for the YMCA to change from its colonial era form and become a civic movement. In this environment, the YMCA’s representative social movements were the Student YMCA Movement and Boy Work, both of which were led by the young generation of students. At that time, the two movements did not actively pursue social reform due to the country’s immature civil society and the YMCA’s faith-oriented identity, but they restored traditions to be discontinued through their moderate approach. Above all, through these movements, the YMCA internally organized young students, and they have been the driving force forward the civic movement since the 1960s.
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박상준(Sangjun Park),오세욱(Sewook Oh),김정엽(Jeongyeop Kim) 한국자동차공학회 2023 한국자동차공학회 부문종합 학술대회 Vol.2023 No.5
This study is about the steering system reverse input prevention concept that will be used in future mobility. Future steering systems are expanding the development of SBW-type steering devices without mechanical connections, and such systems generate reverse inputs regardless of the drivers will. An apparatus for limiting such an inverse input has various system structures. Based on this study, it will be the best choice to construct a system that controls reverse input using gear efficiency, solenoids, clutches, etc.
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