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유용환(Yong-Hwan Yoo),박호석(Ho-Seok Park),장은영(Eun-Young Chang) 한국정보기술학회 2021 Proceedings of KIIT Conference Vol.2021 No.11
도로 위의 스마트 신호등을 통해 사고 발생율을 낮추고 장애인과 노약자들의 보행 안전율을 높이는 기능을 수행한다. 정지선과 보행자 선에 초음파 센서와 부저 센서를 이용하여 침범 시 부저 모듈을 작동시키고, 우천으로 인한 습도 상승 시 정지선 확인 후 감속할 수 있도록 딜레마 존에 네오픽셀을 설치하였다. 또한 야간에 보행자 위치 인식을 위해 조도센서가 감지하는 밝기에 따라 LED가 작동하도록 설계하였다. 을 이용하여 초점형상 복원을 하는 방법을 제안하여 초점 형상 복원의 정확도를 향상시킨다. It functions to lower the incidence of accidents and increase the walking safety rate of the disabled and the elderly through smart traffic lights on the road. Ultrasonic sensors and buzzer sensors were used to operate the buzzer module in case of invasion on the stop and pedestrian lines, and neofixel was installed in the dilemma zone so that when humidity rises due to rain, the stop line can be checked and decelerated. In addition, the LED is designed to operate according to the brightness sensed by the illumination sensor to recognize the location of pedestrians at night.
마이크로 부품 조립을 위한 평면 3-PRP 정렬기의 역기구학
이정재(Jeong-Jae Lee),유용환(Young-Hwan Yoo),이창우(Chang-Woo Lee),송준엽(Jun Yeob Song),이수훈(Soo-Hun Lee),홍민성(Min-Sung Hong),이문구(Moon G. Lee) 한국생산제조학회 2010 한국공작기계학회 추계학술대회논문집 Vol.2010 No.-
In the field of micro-factory, there are demanded on aligning micro-components when they assemble an automatic focusing actuator of camera module for cellular phone and mount a dental crown on artificial root. This paper presents inverse kinematics of three degree-of-freedom (DOF) planar parallel actuated manipulators for the alignment. The 3-PRP (Prismatic-Revolute-Prismatic) manipulator is actuated by the voice coil motors (VCMs). The actuators are arrayed 120° apart symmetrically on the horizontal plate. Numerical simulation of the kinematical motion of 3-PRP manipulator is performed by using inverse kinematics. Furthermore, based on these results, the working range of the manipulator is estimated before experiments. Also, this paper presents control algorithm to drive the manipulator. The control algorithm is using a feedback control based on the inverse kinematics, sensor kinematics and governing equation of VCM. The algorithm controls each VCM independently.
마이크로 부품 조립을 위한 평면 3-PRP 정렬기의 역기구학
이정재(Jeong-Jae Lee),유용환(Young-Hwan Yoo),이창우(Chang-Woo Lee),송준엽(Jun Yeob Song),이수훈(Soo-Hun Lee),홍민성(Min-Sung Hong),이문구(Moon G. Lee) 한국생산제조학회 2010 한국생산제조시스템학회 학술발표대회 논문집 Vol.2010 No.10
In the field of micro-factory, there are demanded on aligning micro-components when they assemble an automatic focusing actuator of camera module for cellular phone and mount a dental crown on artificial root. This paper presents inverse kinematics of three degree-of-freedom (DOF) planar parallel actuated manipulators for the alignment. The 3-PRP (Prismatic-Revolute-Prismatic) manipulator is actuated by the voice coil motors (VCMs). The actuators are arrayed 120° apart symmetrically on the horizontal plate. Numerical simulation of the kinematical motion of 3-PRP manipulator is performed by using inverse kinematics. Furthermore, based on these results, the working range of the manipulator is estimated before experiments. Also, this paper presents control algorithm to drive the manipulator. The control algorithm is using a feedback control based on the inverse kinematics, sensor kinematics and governing equation of VCM. The algorithm controls each VCM independently.