고압설비에 강인한 고장위치인식 알고리즘을 적용한 마이크로폰 어레이

In this paper we proposed an accidental position of the robust high pressure equipment. because it’s difficult to measure high pressure accidental position so this study receives the noise transmitted in a constant audio frequency range through a microphone array in which the noise(like grease in a pan)occurs on the power supply line due to the troublesome partial discharge(arc). then by going through a series of signal processing of removing noise, it measures the distance and direction up to the noise caused by the troublesome partial discharge(arc) when the signal sound transmitted by the signal source of bad insulator is received on each microphone. then, this signal is entered in a digital value of digital signal processing (TMS320F2812) through the 16 bit A/D conversion. so we knew the sound distance, direction and coordinate of bad insulator from the arriving time difference occuring on each microphone and the algorithm of detecting maximum time difference