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권순동(S. Kwon),정영우(Y. Jung),김상욱(S. Kim),이범식(B. Lee),지동해(D. Chi) 한국정보과학회 1999 한국정보과학회 학술발표논문집 Vol.26 No.1B
MPEG-4 표준의 여섯 번째 부분인 DMIF(Delivery Mulitimedia Intergration Framwork)는 분산 환경에서 멀티미디어 데이터를 효율적으로 전송하고, 프리젠테이션 하기 위해 다양한 멀티미디어 데이터를 투명하게 전송하고, 사용자와의 상호작용이 가능한 시청각 장면을 전송한다. 본 논문은 MPEG-4 표준의 여섯 번째 부분인 DMIF와 연동하여 채널을 요청 및 관리하고, 생성된 채널을 통하여 전송된 장면 디스크립트 스트림을 파싱 및 해석하여 멀티미디어 객체를 프리젠테이션하는 시 · 공간의 정보를 나타내는 장면을 구성한다. 또한 DMIF에서 생성된 채널을 통해 전송된 미디어 데이터를 프리젠테이션 할 수 있도록 객체 디스크립트 스트림을 파싱 및 해석하여, 미디어 스트림을 필요로 하는 노드와 해당하는 채널을 연결시켜준다.
특수목적기계용 압력보상 기능을 갖는 4륜 구동 주행 유압시스템 특성 해석
이승현(S. H. Lee),김동명(D. M. Kim),이용석,김상호,권순동(S. D. Kwon) 유공압건설기계학회 2017 유공압건설기계학회 학술대회논문집 Vol.2017 No.11
In this study, the characteristics of the 4 wheel drive travel hydraulic system for special purpose machinery were analyzed using developed analysis program based on Simulation-X tool. From the parametric analysis, the effects of each factor were revealed. Through the simulation with varying parameters, the pressure compesated cotrol parameter effects on the control chrateristic and the pump pressure and load pressure variations were studied. The results were compared with the experimental ones. The results and discussions of the present paper could aid in the design of a 4 wheel drive travel hydraulic control system whith pressure compensated flow control function
건설기계용 오픈 센터 밸브형 부하 감응 유압 제어 시스템의 특성 해석
이승현(S. H. Lee),김동명(D. M. Kim),권순동(S. D. Kwon) 유공압건설기계학회 2017 유공압건설기계학회 학술대회논문집 Vol.2017 No.11
In this study, the characteristics of the load sensing hydraulic control system for open center type of a construction equipment were analyzed using developed analysis program based on Amesim tool. From the parametric analysis, the effects of each factor were revealed. Through the simulation with varying parameters, the system parameter effects on the controllable region and the pump pressure and load pressure variations were studied. The results were compared with the experimental ones. The results and discussions of the present paper could aid in the design of a load sensing hydraulic control system for closed center type.
300마력급 휠 로더용 사판식 로드 센싱 유압펌프를 적용한 유압 시스템의 특성 해석
이승현(S. H. Lee),김동명(D. M. Kim),권순동(S. D. Kwon) 유공압건설기계학회 2017 유공압건설기계학회 학술대회논문집 Vol.2017 No.11
In this study, the characteristics of the load sensing hydraulic control system for closed center type of a construction equipment were analyzed using developed analysis program based on Amesim tool. From the parametric analysis, the effects of each factor were revealed. Through the simulation with varying parameters, the system parameter effects on the controllable region and the pump pressure and load pressure variations were studied. The results were compared with the experimental ones. The results and discussions of the present paper could aid in the design of a load sensing hydraulic control system for closed center type.
재난·재해 대응을 위한 독립구동 유압 주행 시스템 개발에 관한 연구
이근호(G. H. Lee),김동명(D. M. Kim),장주섭(J. S. Jang),이승현(S. H. Lee),권순동(S. D. Kwon) 유공압건설기계학회 2017 유공압건설기계학회 학술대회논문집 Vol.2017 No.11
This study deals with the development of independent driving hydraulic system for disaster correspondence in which there is no development case in Korea. The development target is a system in which four traveling motors are driven independently, and it should easy to operate even under the condition that load is applied to the traveling motor differently. In order to be suitable for complex work, the hydraulic system was designed using the main control valve with pressure compensation function. If we can develop an analytical model that reflects the specifications and functions of the parts through the analysis program, we can verify the validity of the design before you make the prototype. In other words, the purpose of this study is to examine the feasibility of designing an independent drive hydraulic system through the development of an analysis model from the viewpoint of complex work. The analysis program uses Simulation X.