A method for locating abnormal sound in transmission line channels based on time delay estimation and equipment coordinates

Abstract To get rid of the current transmission line visual monitoring device which only relies on a single photo-monitoring method, this paper proposes method based time-delay estimation and equipment coordinates to locate abnormal sound in channel. Firstly, audio-visual is selected collect information any as reference warning record, relative time difference between other records record determined. Then, corresponding alarm used point set up Cartesian coordinate system, obtain GPS equipment, unify information, equipment; finally, coordinates, difference, channel source are obtained. Through experiment firecracker sound, we can within 2km open environment, proves that location effectively enhance effect