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Multi-mode submarine cable burial depth detection method and detection system

A detection method, multi-mode technology, applied in radio wave measurement system, electrical/magnetic depth measurement, fault detection by conductor type, etc., can solve problems such as single application scope and discontinuous measurement frequency

Active Publication Date: 2020-09-25
ZHOUSHAN ELECTRIC POWER SUPPLY COMPANY OF STATE GRID ZHEJIANG ELECTRIC POWER +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a multi-mode submarine cable burial depth detection method and detection system for the shortcomings of the prior art, such as single application range and discontinuous measurement frequency.

Method used

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  • Multi-mode submarine cable burial depth detection method and detection system
  • Multi-mode submarine cable burial depth detection method and detection system
  • Multi-mode submarine cable burial depth detection method and detection system

Examples

Experimental program
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Effect test

Embodiment 1

[0072] refer to figure 1 and 3 As shown, the present embodiment relates to a multi-mode submarine cable depth detection system, including a survey ship 10, a host computer 9, a watertight towing body 2 and a watertight cable 8; the host computer 9 is arranged on the survey ship 10; The watertight towing body 2 described above is connected to the survey ship through a watertight cable 8. The watertight towing body 2 includes a non-metallic watertight chamber, and the watertight towing body 2 is internally provided with a first three-axis fluxgate 3 and a second three-axis fluxgate 3 for collecting three components of a magnetic field. The axial fluxgate 4 is used to collect the distance h between the first three-axis fluxgate and the seabed 0 An altimeter 5, an attitude meter 6 for collecting Euler angles in the directions of X, Y, and Z axes, and a lower computer 7 for receiving and transmitting data, and the second three-axis fluxgate 4 is located in the first three Right b...

Embodiment 2

[0099] refer to figure 2 and 3 As shown, the present embodiment relates to a multi-mode submarine cable buried depth detection system, including a current source 1, a survey ship 10, a host computer 9, a watertight towing body 2 and a watertight cable 8, and the current source 1 is connected to the submarine cable , the current source 1 is an alternating current source or a direct current source, and is used to input alternating current or direct current to the submarine cable 11; the upper computer 9 is arranged on the survey ship 10; the watertight towing body 2 passes through the watertight cable 8 is connected with the measuring ship, the watertight towing body 2 includes a non-metallic watertight chamber, and the watertight towing body 2 is provided with a first three-axis fluxgate 3 and a second three-axis fluxgate 4 for collecting the three components of the magnetic field. The distance h between the first three-axis fluxgate and the seabed 0 An altimeter 5, an attit...

Embodiment 3

[0127] The structure of the multi-mode submarine cable depth detection system in this embodiment is the same as that of Embodiment 2, and the present embodiment will not elaborate. To detect, the multi-mode submarine cable buried depth detection method comprises the following steps:

[0128] 1) In this embodiment, direct current is input to the submarine cable 11 through the current source 1. The current source is a high-power direct current source. The current source 1 adopts the programmable AC power supply of Quantian Technology. Output direct current, this embodiment only outputs direct current;

[0129] 2) Use watertight cables 8 to connect the watertight towing body 2 with the first three-axis fluxgate 3, the second three-axis fluxgate 4, the altimeter 5, the attitude indicator 6 and the lower computer 7 to the upper position on the measurement ship 10. Machine 9 is connected;

[0130] 3) Place the watertight towing body 2 in seawater, and the survey ship 10 tows the w...

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Abstract

The invention relates to a multi-mode submarine cable burial depth detection method and a measurement system. The measurement system comprises a measurement ship, an upper computer, a watertight towedbody and a watertight cable. The upper computer is arranged on the measurement ship, and the watertight towed body is internally provided with a first triaxial fluxgate, a second triaxial fluxgate, an altimeter, an attitude instrument and a lower computer. The method comprises the following steps: inputting alternating current or direct current to a submarine cable through a current source; connecting the watertight towed body with an upper computer on the surveying vessel through a watertight cable; the surveying vessel dragging the watertight towed body through the watertight cable to scanand survey the sea area; wherein the first three-axis fluxgate and the second three-axis fluxgate respectively acquire three components of a magnetic field, the altimeter acquiring the distance between the first three-axis fluxgate and a seabed, the attitude indicator acquiring an Euler angle, and transmitting data to the upper computer through a watertight cable; and the upper computer calculating the burial depth of the submarine cable according to the type of the current input to the submarine cable and the acquired data. The system is diverse in measurement form, can measure the burial depth of the submarine cable when the submarine cable is electrified with alternating current and direct current, and is simple to operate.

Description

technical field [0001] The invention relates to the field of submarine cable operation and maintenance, and relates to a multi-mode submarine cable buried depth detection method and detection system, which are used to improve the efficiency of submarine cable buried depth measurement. Background technique [0002] Submarine cable depth detection is an indispensable part of submarine cable operation and maintenance. When a submarine cable fails, the accuracy and measurement efficiency of the buried depth data of the submarine cable will affect the time cost and economic cost of maintenance. At present, the burial depth of the submarine cable is determined by receiving the magnetic field change generated by the submarine cable in space through the receiving coil instrument, so as to determine the burial depth of the submarine cable. The most common ones are the probe to measure the buried depth of the submarine cable and the multi-coil to measure the buried depth. [0003] P...

Claims

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Application Information

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IPC IPC(8): G01V3/165G01V3/02G01R31/08G01B7/26
CPCG01V3/165G01V3/02G01R31/083G01R31/088G01B7/26
Inventor 张磊乐彦杰胡凯徐蓓蓓何旭涛孙璐陶诗洁高震杨国卿梁尚清
Owner ZHOUSHAN ELECTRIC POWER SUPPLY COMPANY OF STATE GRID ZHEJIANG ELECTRIC POWER
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