Submarine cable fault accurate positioning method based on magnetic vector data and positioning instrument

The invention relates to a submarine cable fault accurate positioning method based on magnetic vector data and a positioning instrument. The method is characterized by comprising the following steps of 1), connecting a high-power alternating current source with a faulty submarine cable, and outputti...

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Hauptverfasser:	PENG WEILONG, LI SHIQIANG, ZHANG LEI, HU KAI, ZHANG NAFEI, YANG GUOQING, LIANG SHANGQING, ZHENG XINLONG, SUN LU, HE XUTAO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	DETECTING MASSES OR OBJECTS GEOPHYSICS GRAVITATIONAL MEASUREMENTS GYROSCOPIC INSTRUMENTS MEASURING MEASURING DISTANCES, LEVELS OR BEARINGS NAVIGATION PHOTOGRAMMETRY OR VIDEOGRAMMETRY PHYSICS SURVEYING TESTING
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creator	PENG WEILONG LI SHIQIANG ZHANG LEI HU KAI ZHANG NAFEI YANG GUOQING LIANG SHANGQING ZHENG XINLONG SUN LU HE XUTAO
description	The invention relates to a submarine cable fault accurate positioning method based on magnetic vector data and a positioning instrument. The method is characterized by comprising the following steps of 1), connecting a high-power alternating current source with a faulty submarine cable, and outputting a sinusoidal current signal I0sin (omega t) with stable frequency and stable amplitude; 2) connecting a water surface towed body for measuring data with a shipborne upper computer on a measuring ship by using a watertight cable, wherein the measuring ship drags the water surface towed body to move from the power supply end of the faulty submarine cable along the laying direction of the faulty submarine cable; 3) based on the frequency omega detected by the water surface towed body as an alternating magnetic field signal, calculating to obtain a longitude coordinate lon2 (t1) and a latitude coordinate lat2 (t1) of the faulty submarine cable; and 4) according to the obtained longitude and latitude coordinates lon2
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subjects	DETECTING MASSES OR OBJECTS GEOPHYSICS GRAVITATIONAL MEASUREMENTS GYROSCOPIC INSTRUMENTS MEASURING MEASURING DISTANCES, LEVELS OR BEARINGS NAVIGATION PHOTOGRAMMETRY OR VIDEOGRAMMETRY PHYSICS SURVEYING TESTING
title	Submarine cable fault accurate positioning method based on magnetic vector data and positioning instrument
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