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Offshore buoy with underwater noise source passive positioning function and positioning method

A passive positioning and noise source technology, applied in the direction of buoys, positioning, motor vehicles, etc., can solve the problems of damage evidence, buoy impact at sea, vandalism, etc., and achieve the effect of low power consumption and reducing flow noise

Active Publication Date: 2018-02-02
SHANDONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the current development of shipping volume, territorial disputes and other reasons, sea buoys are vulnerable to being hit by ships or deliberately damaged, especially marine survey buoys equipped with sophisticated survey instruments and equipment, which have weaker anti-damage capabilities
As buoys are unattended platforms at sea, it is not easy to collect damage evidence after being damaged

Method used

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  • Offshore buoy with underwater noise source passive positioning function and positioning method
  • Offshore buoy with underwater noise source passive positioning function and positioning method
  • Offshore buoy with underwater noise source passive positioning function and positioning method

Examples

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Embodiment Construction

[0049] like figure 1 As shown, a sea buoy with the function of passive positioning of underwater noise sources includes a buoy body 1, an anchor chain 2 is connected to the bottom of the buoy body 1, a gravity anchor 3 is connected to the bottom of the anchor chain 2, and the gravity anchor 3 is fixed at the bottom of the sea. A nylon rope 4 is also connected to the buoy body 1, and a noise source positioning array element device 5 is arranged on the nylon rope 4. The noise source positioning array element device 5 includes a first support rod 501, a second support rod 502 and a first support rod 502. The three support rods 503, the first support rod 501, the second support rod 502 and the third support rod 503 are arranged perpendicular to each other, and are connected together to form an XYZ three-dimensional Cartesian coordinate system structure. An even number of sound pressure sensors 504 are respectively arranged on the first support rod 501, the second support rod 502 ...

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Abstract

The invention discloses an offshore buoy with an underwater noise source passive positioning function. The offshore buoy with the underwater noise source passive positioning function comprises a buoybody; an anchor chain is connected to the bottom of the buoy body; a gravity anchor is connected to the bottom of the anchor chain and fixed to the seabed; the buoy body is further connected with a nylon rope which is provided with a noise source positioning array element device; and a camera device is arranged on the buoy body. A method for implementing underwater noise source positioning throughthe buoy comprises the following steps that 1, a self-adaptive threshold detection method is adopted for distinguishing an underwater noise source; 2, passive noise source positioning is conducted onthe distinguished underwater noise source through a multi-array-element mixed positioning method; and 3, the camera device is started, and the positioned noise source is photographed to obtain an evidence. The offshore buoy with the underwater noise source passive positioning function and the positioning method can be used for positioning the underwater noise source close to the buoy, can performevidence obtaining behaviors like photographing and are low in power consumption.

Description

technical field [0001] The invention relates to a sea buoy, in particular to a sea buoy with the function of passive positioning of an underwater noise source, and a positioning method based on the sea buoy. Background technique [0002] A buoy is a kind of navigation mark floating on the water surface, which is anchored at a designated position to mark the range of the channel, indicate shoals, obstructions or special-purpose surface navigation aids. Now some multi-functional buoys are also equipped with radar transponders, radio pointers, fog alarm signals and marine survey instruments, with more and more integrated functions. However, with the current development of shipping volume, territorial disputes and other reasons, offshore buoys are vulnerable to being hit by ships or deliberately damaged, especially marine survey buoys equipped with sophisticated survey instruments and equipment, which have weaker anti-damage capabilities. As buoys are unattended platforms at se...

Claims

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Application Information

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IPC IPC(8): B63B22/20B63B22/00G01S5/20H02J7/35
CPCH02J7/35G01S5/20B63B22/00B63B22/20B63B2022/006Y02A90/30
Inventor 卢涛韩宝坤魏国
Owner SHANDONG UNIV OF SCI & TECH
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