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Method for measuring wave overtopping amount of coastal wave-resistant building based on three-dimensional laser radar

A three-dimensional laser, measurement method technology, applied in measurement devices, radio wave measurement systems, electromagnetic wave re-radiation and other directions, can solve problems such as large measurement errors, difficult image and video processing, and inability to reflect the process of crossing waves, achieving improved Measurement accuracy, high resolution, and safety effects

Pending Publication Date: 2021-12-07
HOHAI UNIV
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Problems solved by technology

The first method is more accurate, but this method cannot reflect the process of crossing the waves
Although the second method can reflect the process of overcoming waves, it is more difficult to process images and videos, and the measurement error of overcoming waves is relatively large

Method used

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  • Method for measuring wave overtopping amount of coastal wave-resistant building based on three-dimensional laser radar
  • Method for measuring wave overtopping amount of coastal wave-resistant building based on three-dimensional laser radar
  • Method for measuring wave overtopping amount of coastal wave-resistant building based on three-dimensional laser radar

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Embodiment Construction

[0040] Below in conjunction with accompanying drawing and specific embodiment, further illustrate the present invention, should be understood that these embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various aspects of the present invention Modifications in equivalent forms all fall within the scope defined by the appended claims of this application.

[0041] The invention provides a three-dimensional laser radar-based method for measuring the amount of overcoming waves of anti-wave structures on the coast of coral reefs, such as figure 1 As shown, it includes the following steps:

[0042] S1: Use lidar to obtain the 3D coordinate point cloud of the wave surface on the top of the embankment:

[0043] Such as figure 2 As shown, the laser radar is arranged on the top of the embankment, with built-in GPS and inertial n...

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Abstract

The invention discloses a method for measuring the wave overtopping amount of a coastal wave-resistant building based on three-dimensional laser radar. The method comprises the following steps: acquiring three-dimensional coordinate point cloud of a wave surface of a dam crest by adopting the laser radar; carrying out filtering processing on the three-dimensional coordinate point cloud; calculating the dam crest pressure intensity of a wave-resistant building and the flow velocity distribution at the crest peak of the dam crest; calculating the dam crest flow of the wave-resistant building based on the obtained dam crest pressure intensity and the flow velocity distribution at the crest peak of the dam crest; and according to the dam crest flow of the wave-resistant building, calculating the total wave overtopping amount of the dam crest of the wave-resistant building. According to the method, the flow and the total wave overtopping amount of the dam crest of the wave-resistant building can be obtained in real time, the measurement precision is high, the whole wave overtopping process can be reflected, and a feasible method is provided for analysis of the wave overtopping amount in a laboratory and on site.

Description

technical field [0001] The invention belongs to the technical field of ocean observation, and in particular relates to a method for measuring the amount of overcrowding of coastal wave-proof buildings based on a three-dimensional laser radar. Background technique [0002] The amount of wave overtaking is an important parameter in the design of wave-resistant structures, and has a great influence on the stability of the embankment and the safety of the crest of the wave-resistant structures. Flow rate and total wave overshoot are important parameters reflecting the amount of wave overrun. Flow rate refers to the amount of water passing through the crest of the embankment per unit time, and the total amount of overcoming wave is the total amount of water passing through the seawall within a period of time. [0003] At present, there are mainly two methods for measuring the amount of overrun. The first method is to calculate the amount of over-wave by taking in over-wave water...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S17/88
CPCG01S17/88
Inventor 张利鹏时健张弛陶爱峰郑金海
Owner HOHAI UNIV
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