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Underwater pipeline positioning method and device

A technology for positioning devices and underwater pipelines, which is applied to measurement devices, satellite radio beacon positioning systems, instruments, etc., can solve the problems of low accuracy and cannot meet high-precision underwater positioning, and achieve the effect of high routing accuracy.

Pending Publication Date: 2021-05-21
BC P INC CHINA NAT PETROLEUM CORP +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The embodiment of the present disclosure provides an underwater pipeline positioning method and device, which can solve the problem that the commonly used pipeline positioning methods and devices have low positioning accuracy and cannot meet the requirements of underwater high-precision positioning

Method used

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  • Underwater pipeline positioning method and device
  • Underwater pipeline positioning method and device

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Embodiment Construction

[0049] In order to make the purpose, technical solution and advantages of the present disclosure clearer, the implementation manners of the present disclosure will be further described in detail below in conjunction with the accompanying drawings.

[0050] figure 1 It is a flowchart of an underwater pipeline positioning method provided by an embodiment of the present disclosure, please refer to figure 1 , the method includes:

[0051] 101. Acquire the first coordinates of the base station.

[0052] 102. Detect the reference station to obtain second coordinates of the reference station.

[0053] 103. Acquire a correction value required to correct the second coordinate to the first coordinate.

[0054] 104. When the positioning device is floating on any first target point on the water surface above the pipeline, acquire the third coordinates of the first target point.

[0055] 105. Correct the third coordinate based on the correction value to obtain a fourth coordinate of th...

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Abstract

The invention provides an underwater pipeline positioning method and device, and belongs to the technical field of pipeline positioning. Based on the accurate first coordinate of a base station, through positioning and correction of the positioning device, an accurate fourth coordinate of any first target point on the water surface is obtained. The positioning device is weak in signal underwater and cannot be directly used for positioning; the positioning device moves underwater by taking the first target point as a starting point, the displacement is recorded; and when the positioning device moves to a riverbed right above any second target point on the pipeline, the coordinate of the positioning device is obtained through the fourth coordinate and the displacement; the accurate coordinate of each second target point is obtained by combining the height difference between the positioning device and each second target point; the plurality of second target points are marked on the pipeline, and the route of the underwater pipeline is obtained based on the accurate coordinate of each second target point; and compared with a route measured by using a traditional DGPS location technique or underwater acoustic positioning systems, the route is high in precision, and the requirement of underwater high-precision positioning can be met.

Description

technical field [0001] The present disclosure relates to the technical field of pipeline positioning, in particular to an underwater pipeline positioning method and device. Background technique [0002] In the laying, maintenance and risk prediction of underwater pipelines, it is necessary to locate the underwater pipeline first. Since the shelter or magnetic field interference in the underwater environment usually affects the transmission of satellite signals, it is impossible to directly use DGPS (Differential Global Position System, Differential Global Positioning System) satellite technology to locate underwater pipelines. Therefore, underwater acoustic positioning systems are widely used in underwater pipeline positioning technology at present. [0003] Underwater acoustic positioning system refers to the technology of determining the position and distance of underwater carriers or equipment with underwater acoustic equipment, such as ultra-short baseline, short baseli...

Claims

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Application Information

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IPC IPC(8): G01C21/16G01S19/47
CPCG01C21/165G01S19/47Y02A90/30
Inventor 江勇隋付东张倩焦如义刘艳利刘厚平周号武涛
Owner BC P INC CHINA NAT PETROLEUM CORP
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