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A method for detecting ocean wave parameters and an unmanned ship with self-adjusting attitude

A technology for unmanned ships and ocean waves, applied in attitude control, measuring the movement of open-air water sources, measuring devices, etc., can solve problems such as low accuracy, slow response, and large delay

Active Publication Date: 2020-10-20
SOUTH CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing mobile wave power generation ship technology, the angle between the hull and the waves is mainly judged by the power generation efficiency, so as to control the rotation of the hull to be orthogonal to the waves; however, this method has slow response, large delay and low accuracy

Method used

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  • A method for detecting ocean wave parameters and an unmanned ship with self-adjusting attitude
  • A method for detecting ocean wave parameters and an unmanned ship with self-adjusting attitude
  • A method for detecting ocean wave parameters and an unmanned ship with self-adjusting attitude

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Embodiment 1

[0039] A method for detecting wave traveling wave parameters and an unmanned ship with self-adjusting attitude, such as figure 1 shown. The unmanned ship floats on the sea. Through the remote control of the navigation communication system 7 or the automatic navigation mode, the control system 9 controls the speed of the left motor 10 and the right motor 11 to drive the left water wheel 12 and the right water wheel 13 to rotate accordingly. Drive to destination to start work. The hull 2 ​​tilts randomly following the wave fluctuations. The left distance sensor 4 and the right distance sensor 5 respectively measure the height change of the uppermost outer wall of the left side and the right side of the hull 2 ​​from the sea surface. The multi-axis sensor 3 measures the acceleration change and the magnetic field change of the ship. The collected information is transmitted to the signal acquisition system 6. After filtering and data analysis, the signal acquisition system 6 calcu...

Embodiment 2

[0043] A method for detecting wave traveling wave parameters and an unmanned ship with self-adjusting attitude, such as figure 1 shown. When the unmanned boat is used in deep-sea culture cage feeding, it is necessary to make the bow of the boat face the center of the cage. Ocean waves are reflected on the edge of a large net cage. A method for detecting the parameters of ocean waves and an unmanned ship with self-adjusting attitude are affected by the waves reflected by the net cage. After passing through the multi-axis sensor 3, the left distance sensor 4, the right distance sensor 5 and The information collection system 6 calculates the included angle α (α is greater than 0 and less than π) of the hull 2 ​​relative to the direction of the reflected ocean wave. The control system 9 controls the hull 2 ​​to rotate until the bow of the unmanned ship faces the center of the cage, then keeps the hull still relative to the cage, and starts feeding operations.

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Abstract

The invention discloses a sea wave travelling parameter detecting method and an attitude self-adjustment unmanned ship. The sea wave travelling parameter detecting method comprises acquiring sea wavetraveling parameters through detection and calculation of a multi-axis sensor, a left distance sensor and a right distance sensor, including time cycles, frequency, direction, speed and effective waveheight of traveling sea waves, and the included angle between a ship body and the sea waves, and further self-adjusting the attitude of the unmanned ship to maintain an orthogonal state with the waves all along, thereby effectively avoiding roll-over of the ship body, improving the safety and reliability of the unmanned ship during marine navigation, improving the power generating efficiency of amovable power generating ship and enhancing the traveling stability of the ship body on sea.

Description

technical field [0001] The invention relates to the fields of marine engineering and automation, in particular to a method for detecting ocean wave traveling wave parameters and an unmanned ship with self-adjusting attitude. Background technique [0002] The depletion of traditional energy sources and the deterioration of environmental pollution make it urgent to develop new energy sources. With the continuous progress and development of science and technology, renewable and clean energy such as solar energy, wind energy and wave power generation have attracted attention from all walks of life. Among them, the advantages of wave energy, such as high energy density and not being affected by the weather, have made wave energy power generation widely concerned by researchers from various countries. Since the ocean is dynamically changing, the mobile wave power ship needs to constantly identify wave parameters such as wave direction in order to adjust the attitude of the ship t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C13/00G05D1/08B63B35/00B63B39/00
CPCB63B35/00B63B39/00G01C13/002G05D1/0875
Inventor 闫国琦刘婷婷莫嘉嗣刘清吴威
Owner SOUTH CHINA AGRI UNIV
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