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Underwater positioning device and underwater positioning method

A technology for underwater positioning and underwater targets, which is applied in the directions of measuring devices, sound wave re-radiation, and utilization of re-radiation. It can solve the problems of large size and unfavorable installation and use of the short baseline positioning system, and meet the requirements of positioning accuracy and installation methods. , easy to carry, low cost effect

Inactive Publication Date: 2018-11-16
SHENZHEN ZHENDI INFORMATION TECH CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The size of the short baseline positioning system is huge, which is not conducive to installation and use

Method used

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  • Underwater positioning device and underwater positioning method
  • Underwater positioning device and underwater positioning method
  • Underwater positioning device and underwater positioning method

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Embodiment Construction

[0033] In order to make the content of the present invention clearer and easier to understand, the content of the present invention will be further described below in conjunction with the accompanying drawings. Of course, the present invention is not limited to this specific embodiment, and general replacements known to those skilled in the art are also covered within the protection scope of the present invention.

[0034] In the description of the present invention, unless otherwise clearly stipulated and limited, "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connections, which may also be electrical connections. Those skilled in the art can understand the above specific meanings in the present invention according to specific situations.

[0035] figure 1 Shown is the schematic diagram of the underwater positioning device of the pres...

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Abstract

The invention discloses an underwater positioning device and an underwater positioning method. The device comprises a plurality of fish finders which comprise one main fish finder and at least two slave fish finders, wherein each fish finder is used for measuring the distance from the fish finder to an underwater target; at least three connecting rods, wherein each connecting rod is used for connecting two adjacent fish finders, and the main fish finder and the slave fish finders are connected by the connecting rods to form noncollinear distribution; and a control unit which obtains the coordinates of the underwater object according to the distances measured by all fish finders and the coordinates of the fish finders. The device can obtain the correct position of the underwater target quickly and conveniently through at least three fish finders which are in noncollinear distribution, thereby achieving the precise locating of the underwater target through the conventional equipment. Thedevice is low in cost, is portable, and is flexible and convenient for application and maintenance.

Description

technical field [0001] The invention relates to the technical field of underwater positioning, in particular to an underwater positioning device and an underwater positioning method using the device. Background technique [0002] In the current exploration and utilization of rivers, lakes and seas, it is necessary to locate underwater targets. Due to the strong absorption of radio waves by the water medium, the underwater acoustic positioning technology using sound waves as information carriers has become the main choice. By installing and deploying acoustic positioning equipment on surface working vessels, underwater mobile platforms, and operating sea areas, real-time monitoring of underwater target positions on the water surface can be realized. According to the difference of baseline length and working mode of acoustic positioning system, it is generally divided into long baseline system (LBL), short baseline system (SBL) and ultra-short baseline system (USBL). [0003...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S15/96G01S7/536
CPCG01S7/536G01S15/96
Inventor 不公告发明人
Owner SHENZHEN ZHENDI INFORMATION TECH CO LTD
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