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퍼지 알고리즘을 이용한 자율주행 이동로봇의 설계에 관한 연구
서현재,임영도,Seo Hyun-Jae,Lim Young-Do 한국통신학회 2006 韓國通信學會論文誌 Vol.31 No.4B
In thispaper, we designed a intelligent autonomous driving robot by using Fuzzy algorithm. The object of designed robot is recognition of obstacle, avoidance of obstacle and safe arrival. We append a suspension system to auxiliary wheel for improvement in stability and movement. The designed robot can arrive at destination where is wanted to go by the old and the weak and the handicapped at indoor hospital and building. 본 논문에서는 퍼지 알고리즘을 사용하여 지능형 자율주행로봇을 설계하였다. 설계된 로봇은 이동시 장애물을 인식하여 이를 회피하며 안전하게 도달하는데 목적이 있다. 또한 로봇의 이동에 있어서 로봇의 안정성과 주행성의 성능을 높이기 위해 보조 바퀴에 서스펜션을 장착하였다. 이렇게 설계된 지능형 자율주행로봇은 병원이나 빌딩내부의 좁은 실내에서 노약자나 장애인이 원하는 목적지 까지 안전하게 갈수 있다.
PSO알고리즘과 상태 피드백 제어를 이용한 시소 시스템의 안정화 제어
서현재(Hyun Jae Seo),임영도(Young Do Lim) 한국정보기술학회 2010 한국정보기술학회논문지 Vol.8 No.1
Seesaw system is good system that explain inverted pendulum and strong nonlinear control system and this system is in use because this system is suited to evaluation and verification of control theory and simplify derive to mathematical modeling.In this paper, Stabilization Control of Seesaw system design using PSO Algorithm and State Feedback Control. The System Control Algorithm in this paper has application to Sate Feedback Controller of guarantee of stability from long history. In this paper, it propose that ways to use quicker and accurate PSO(Particle Swarm Optimization) Algorithm for State Feedback gain. This way is verified availability that show performance to stability control and disturbance with Initial Conditions from Simulation.
활착식 미늘 박스 앵커와 양날 세트 앵커를 이용한 외장 마감 단열 패널의 고정 공법 연구
서현재(Seo Hyun-Jae),박진상(Park Jin-Sang),오상근(Oh Sang-Keun) 대한건축학회 2011 大韓建築學會論文集 : 構造系 Vol.27 No.4
Recently, the system construction technologies are developed and used in construction sites, such as the technology to attach the insulation material to the concrete base surface and the introduction of dry process, to remove the elements of ruptures such as the quality deterioration of the mortar paste, abnormal climates, heavy rain, and strong winds. Even with such technology developments, the quality management standard is still not specified in Korea to measure the adhesion strength of the fixed exterior finishing panel and to verify the strength of the junction between insulation materials. The performance of the exterior panel was verified through the performance test for the wall fixing anchor of the exterior panel and Mock-up test in this study. This seems to be able to be applied to higher building parts. This study is intended to derive the development as the process to solve the problems of the existing exterior panels. Also, it demands the necessity of preparing test specifications for the performance test since there is no KS specification.
서현재 ( Seo Hyun-jae ),박종필 ( Park Jong-pil ),남선화 ( Nam Sun-hwa ),공민호 ( Gong Min-ho ),송제영 ( Sng Jae-young ),오상근 ( Oh Sang-keun ) 한국건축시공학회 2018 한국건축시공학회 학술발표대회 논문집 Vol.18 No.2
Form-work is a must for construction work. In order to secure the best condition of the form surface and to increase the number of times, the form releasing agent is applied during the process of the form-work. The base oil of the form release agent which has been used already uses the oil which directly or indirectly affects the natural environment and the concrete. In this study, the basic study on the form release agent for concrete was carried out only for the effect of adhesion. The adhesive force of the tile is measured by the mortar to determine the change of the releasing agent and the adhesive strength.