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고정 장애물에 대한 지능형 AGV의 주행성능에 대한 연구
전성재(S. J. Jun),양강(G. Yang),조연상(Y. S. Cho),박흥식(H. S. Park),김영희(Y. H. Kim) 대한기계학회 2006 대한기계학회 춘추학술대회 Vol.2006 No.4
Recently, the AGV system has been studied actively according to the progress of FMS in the industry, and it is a unit with the self-power to transport the materials between stations without the particular control by an operator. It is widely known that the AGV system is effective to increase the utility of manufacturing line and cut down personnel expenses. The general methods of obstacle detection for an AGV are to use kinds of sensors like an ultra-sonic and electromagnetic wave sensor. But, these sensors have simple information of obstacle. Therefore, it is needed to construct distributed control system with a based on PC and fast stereo vision system by two CCD cameras for various information of obstacle, and to test there performance. In this study, the intelligent AGV system was made by using distributed control system and fast stereo vision system, and was tested on driving performance, when an obstacle existed in front.
전성재(S. H. Jun),강인혁(I. H. Kang),류미라(M. R. Lyu),조연상(Y. S. Cho),박흥식(H. S. Park) 한국트라이볼로지학회 2002 한국트라이볼로지학회 학술대회 Vol.35 No.-
Generally, Oxidization film are generated by friction and wear in lubricant oil. It is effect that the heat and pressure act on contact area. Because the electrons movement progress the oxidization, if the electrons movement be regulated, the thickness of oxidization film can be regulated and friction characteristics can be improved. But electronic current can deteriorate friction characteristics, so various characteristics must be investigated on transforming of electronic current. Therefor, using the Norton equation, short current were transformed between ball and disk. Also, an experiment was carried out using ball on disk type tester. So, we studied up on effect of current for friction characteristics.