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Side-scan sonar underwater positioning system stable in operation

A side-scan sonar and underwater positioning technology, which is applied in the radio wave measurement system, sound wave re-radiation, utilization of re-radiation, etc., can solve the problems of side-scan sonar's poor working posture constraint effect, detection accuracy and measurement effect distortion, Solve problems such as poor operation stability of the measurement and positioning system, and achieve the effects of improving measurement operation stability, improving attitude constraints, and improving connection firmness

Active Publication Date: 2020-09-08
无锡新蓝图测绘技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Due to the soft texture of the towing rope and the single connection point with the towing fish, this connection method will result in poor effect on the attitude of the side-scan sonar. Under the interference of the marine environment, the position and attitude of the side-scan sonar will occur randomly changes, so that the side-scan sonar cannot maintain the best detection angle in water, resulting in distortion of detection accuracy and measurement results, resulting in poor operational stability of the entire measurement and positioning system

Method used

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  • Side-scan sonar underwater positioning system stable in operation
  • Side-scan sonar underwater positioning system stable in operation
  • Side-scan sonar underwater positioning system stable in operation

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0037] A side-scan sonar underwater positioning system with stable operation, referring to figure 1 , comprising a tow rope 2, a towfish 3 connected to the tow rope 2. Wherein, a connecting device 4 is arranged between the towing rope 2 and the towed fish 3 , and the connecting device 4 is used to fix the towed fish 3 .

[0038] refer to figure 1 , the connecting device 4 includes a connecting block 41 . The whole connection block 41 is configured like a clam, the vertical section of the connection block 41 is spindle-shaped, the cross section of the connection block 41 is circular, and the center of gravity of the connection block 41 is located at the center of the connection block 41 .

[0039] refer to figure 1 , the end of the towing rope 2 is provided with three sub-ropes 5, the sub-ropes 5 are fixedly connected to the top surface of the connection block 41, and the connecting line between the sub-ropes 5 and the connection points of the connection block 41 is arranged i...

Embodiment 2

[0053] A side-scan sonar underwater positioning system with stable operation, referring to Figure 6 and Figure 7 , the difference from Embodiment 1 is that the fixing device 19 includes a connecting piece 194 hinged on the side wall of the fixing ring 17, an elastic block 195 fixedly connected to the connecting piece 194, set on the side wall of the tow fish 3 for The elastic block 195 presses the engaging slot 196 . Wherein, the connecting piece 194 is arranged in a rectangular parallelepiped and equidistant rings are arranged on the side wall of the fixing ring 17 , the elastic block 195 is arranged in a rectangular parallelepiped, and the inner cavity of the insertion groove 196 is arranged in a rectangular parallelepiped.

[0054] refer to Figure 6 and Figure 7 An iron block 27 is fixedly embedded on the side wall of the elastic block 195 , and a magnetic block 28 for attaching and absorbing the iron block 27 is embedded on the inner groove wall of the insertion gro...

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Abstract

The invention discloses a side-scan sonar underwater positioning system stable in operation. The invention belongs to the technical field of positioning equipment. According to the technical scheme, aconnecting device is arranged between a dragging rope and a dragging fish; the connecting device comprises a connecting block and a driving block arranged on the connecting block; the vertical section of the connecting block is spindle-shaped; the cross section of the connecting block is circular; the gravity center of the connecting block is positioned in the center of the connecting block; at least two mounting grooves are formed in the side wall of the connecting block; the mounting grooves are arranged in central symmetry by taking the straight line where the central axis of the connecting block is located as the center; sliding plates are slidably connected into the mounting grooves and arranged in the horizontal direction, driving devices used for driving the sliding plates to moveare arranged in the mounting grooves, branch ropes are fixedly connected to the top face of the connecting block, and connecting points of the branch ropes and the connecting block are evenly distributed on the upper surface of the connecting block. The system has the effect of improving the measurement operation stability of the positioning system.

Description

technical field [0001] The invention relates to the technical field of underwater positioning equipment, in particular to a side-scan sonar underwater positioning system with stable operation. Background technique [0002] Side-scan sonar has high-resolution and real-time image display functions, which can accurately identify the characteristics of submarine targets, ascertain the shape, size, exposure height, general nature, and overview of submarine substrate types of obstacles. It plays an important role in construction inspections. playing a very important role. [0003] The Chinese patent with the notification number CN206321792U3 discloses a side-scan sonar underwater high-precision positioning system, including a survey ship, a towfish and an ultra-short baseline positioning module. The survey ship is equipped with a GPS unit and a control unit, and the control units are respectively connected to the GPS. Unit and ultra-short baseline positioning module; the ultra-sh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S15/89G01S15/93G01S7/521
CPCG01S7/521G01S15/8902G01S15/93
Inventor 钱海洋丁彬
Owner 无锡新蓝图测绘技术有限公司