Wave direction measurement method based on differential pressure method

A measurement method and technology of differential pressure method, which are applied to measurement devices, measurement of the movement of open water sources, mapping and navigation, etc., can solve problems such as stolen fishing boats, easy loss, and distortion of measured wave directions, and improve safety and reliability. The stability of the equipment and the effect of low maintenance costs

Active Publication Date: 2021-09-21
OCEAN UNIV OF CHINA
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Problems solved by technology

During the use of wave buoys, the influence of current, wind and mooring on the movement of the buoy itself will cause the measured wave direction to be distorted, an...

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  • Wave direction measurement method based on differential pressure method
  • Wave direction measurement method based on differential pressure method
  • Wave direction measurement method based on differential pressure method

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Embodiment 1

[0058] At a certain moment, the wave direction of the wave is distributed in 360°, but the amplitude and frequency of the wave from different directions are different, and the energy distributed is different. The change of the wave at a certain point at a certain moment is irregular. But looking at a plurality of ocean waves in an area from a distance, the main propagation direction of the waves can be distinguished by observing the propagation of continuous multiple waves and the waveform of the waves, which is also the basis for the multi-point pressure type wave direction measurement proposed by the present invention.

[0059] Based on this, the present invention proposes a wave direction measurement method based on the differential pressure method, specifically as figure 1 shown, including the following steps:

[0060] S1. First solve the problem of measuring the direction of one-dimensional ocean waves. Two pressure sensors with a certain distance are placed underwater. B...

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Abstract

The invention provides a wave direction measurement method based on a differential pressure method, belonging to the field of marine monitoring technology measurement. The method comprises the steps: laying a multi-point pressure sensor in a geometrical shape underwater; synchronously acquiring pressure values of a plurality of pressure points, and converting each pressure value into a water depth value corresponding to each pressure point; and analyzing the pressure difference change of the pressure values at multiple points at the same moment, and judging the wave direction according to the pressure difference change rule. According to the method, the pressure sensor is arranged underwater, and no buoy needs to be arranged on a sea surface, so the safety and the stability of measuring equipment are improved; the pressure sensor is not affected by ocean current, wind, an anchor system and other environments, and the problem of measurement wave direction distortion is not prone to occurring; the problems that a wave buoy is low in use safety and prone to being lost and stolen and to being crashed by a fishing boat are solved; and compared with a wave buoy measurement method in which ships need to be rented every time, the method is lower in use and maintenance cost.

Description

technical field [0001] The invention belongs to the field of marine monitoring technology measurement, and in particular relates to a wave direction measurement method based on a differential pressure method. Background technique [0002] Wave is one of the most basic elements of the ocean, an important content of marine scientific research and an important parameter of marine engineering design. At the same time, wave is also one of the most difficult parameters to obtain in hydrometeorological elements. Ocean waves have three elements: wave height, wave period, and wave direction. At present, there are many methods for measuring wave height and wave period, but the measurement of wave direction is a world technical problem. Generally, wave buoy measurement based on the principle of gravitational acceleration is used. [0003] At present, the instruments and methods capable of measuring waves in the world mainly include: 1. Optical wave measuring buoys; 2. Wave buoys (incl...

Claims

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Application Information

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IPC IPC(8): G01C13/00
CPCG01C13/002
Inventor 唐原广赵曙东陆宜凯董陆涛邓玉栋杨启航
Owner OCEAN UNIV OF CHINA
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