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논문 기본 정보

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제어로봇시스템학회 제어로봇시스템학회 국제학술대회 논문집 ICCAS 2001
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    초록·키워드

    An acoustic ranging system was applied for reckoning the location of an agricultural vehicle in the field. The system has a number of fixed stations and a mobile station such as an agricultural vehicle. The mobile station comprises a radio frequency modulator-demodulator (RF MODEM), a buzzer, and a personal computer. The fixed station comprises an RF MODEM, a microphone, an amplifier for the microphone, and a personal computer with a soundboard. The mobile station transmits a 7-bit ASCII code and activates the buzzer simultaneously. The propagation delay time at the fixed station is caused by the difference of the propagation velocities between the acoustic and the radio waves. The reckoning is obtained to calculate the rectilinear range from the propagation delay time with compensating the weather conditions. The ranging and reckoning experiments yielded good results.

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      UCI(KEPA) : I410-ECN-0101-2014-569-000775634