超音波 信號를 利用한 Trolley의 位置 計測에 관한 硏究

Abstract

On the occasion of radiating the ultrasonic wave extending in the air through two signal sources, a variation of receiving signal based on an interference phenomenon is occurred in accordance with the signal source and relative position of the sensor. The input of PC is made by the receiving signal and after that necessary information is made for output in PC. As for its experiment, the model of trolley was manufactured. One of the signal source was attached on the trolley’s moving body and another source and sensor was set up at fixed position. At this time the information accompanied with the trolley is transmitted to the PC through the sensor and also the control signal from PC is become transmitting to the trolley. As the results of the experiment, it was found out that the trolley’s moving distance and the speed can be measured in the real time, and it will be expected to be able to develop and utilize as another non-contactive safety device preparing for the false occurrence of mechanical safety device which is used at actual field.