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제품 포장라인 검사에 적용 가능한 객체 인식 영상처리 알고리즘 구현
김태규(Tae-Gyu Kim),이창호(Chang-Ho Lee),안호균(Ho-Gyun An),윤태성(Tae-Sung Yoon) 대한전기학회 2009 정보 및 제어 심포지엄 논문집 Vol.2009 No.5
Using the object recognition processing on the captured images, we can inspect whether a packaging process is performed correctly in real time. So we realized the functions that acquire an image of each state of the packaging process using a camera, extract each object in the image. and inspect the packaging process using the extracted object data. In case an object shape is solid, for object search, a shape-based matching algorithm was used which searches the object utilizing the informations on the shape. In case an object shape is not solid, and is flexible. gray-level difference of the pixels in the limited image region including the object was used to recognize the object.
Cell 방식 포장공정에서의 Missing Item 검사 및 관리 시스템
김현우(Hyeon-Woo Kim),최현의(Hyun-Eui Choi),안호균(Ho-Gyun An),윤태성(Tae-Sung Yoon) 대한전기학회 2009 정보 및 제어 심포지엄 논문집 Vol.2009 No.5
Cell type packaging line is more suitable for the products with various models and small quantities like mobile phone or mp3 player than conveyor type packaging line. Cell type packaging line is applicable to package various product models, but it can cause wrong product compositions and missing of items. So, automatic missing item detection system is needed. We designed an missing item detection system with a bar code reader, infrared sensors, and a digital camera. and also developed the programs for sensor data acquisition, image data processing. Gill, and data management.
Modified Pulse pattern을 이용한 대체에너지용 인버터의 순시제어
안호균,허재영 國立 昌原大學校 産業技術硏究所 1995 産技硏論文集 Vol.9 No.-
This paper proposes a modified deadbeat controlled-PWM inverter system for the alternative energy. The proposed PWM system utilizes the instantaneous and real time control scheme. Two-pulse PWM switching pattern is used to increase the fundamental component of the output voltage. It was verified through simulation and experiments that the proposed control scheme provided an excellent transient response, increased output voltage amplitude and accurate referance waveform tracking. In this paper, proposed algorithm is computed by the DSP(Digital Signal Processor: TMS320C25) and realized by IGBTs for the high frequency switching. Also PWM generating circuit is simplified by replacing hardware with software.