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200kHz 초음파 센서를 이용한 Edge Position Controller의 개발
조시형,박찬원 강원대학교 정보통신연구소 2010 정보통신논문지 Vol.14 No.-
This paper presents an Edge Position Controller (EPC) system which converts the analog signal of ultrasonic input into signal processing circuits and after A/D conversion. It produces digital data of compensation by micro controller which helps fast adjustment of DC motor of actuator driver in order to enable the real time control of frequent change of input signal.
조시형,박찬원 江原大學校 産業技術硏究所 2009 産業技術硏究 Vol.29 No.B
This paper presents the development of smart counting system that is proper for grains with uneven unit weight or shape. This device can detect the small differences of a light beam and count the pulse from wave shape control, when the grain is going on the light screen, which is made by the light beam screen sensor. It can, different from the former conventional device, distinct the uneven grains for counting detect, by using the dedicated hardware and the software algorithm of the light sensor.
광막센싱방법을 이용한 미소물체의 계수검출 : 하드웨어 개선과 소프트웨어
조시형,박찬원 강원대학교 정보통신연구소 2008 정보통신논문지 Vol.12 No.-
In this paper, hardware improvement and software of tile light screen sensing system is introduced and tested to detect small grains such as seeds or electronic chips of uneven sired. Two modules composed of a transmitter-receiver sensor array and a microprocessor-based sensor signal processing system are developed to realize the proposed system. As a result, the sensing signal waveform was relatively improved than the previous machine's and its counting error was within the range of 0.01% in case of normal seeds counting.