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Method for estimating empty volume of artificial fish reef according to multi-beam water depth data

An artificial reef and multi-beam technology, applied in the direction of sound wave re-radiation, radio wave measurement system, measurement device, etc., can solve the problem of ignoring fish reefs and achieve low-cost effects

Active Publication Date: 2021-08-31
SHANGHAI OCEAN UNIV
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Problems solved by technology

The side-scan sonar detection system can obtain high-resolution seabed geomorphic unit attribute information, but the specific structure of fish reefs can be ignored when estimating the overall space volume

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  • Method for estimating empty volume of artificial fish reef according to multi-beam water depth data
  • Method for estimating empty volume of artificial fish reef according to multi-beam water depth data
  • Method for estimating empty volume of artificial fish reef according to multi-beam water depth data

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Embodiment Construction

[0028] Below according to the accompanying drawings figure 1 and figure 2 , give a preferred embodiment of the present invention, and give a detailed description, so that the functions and characteristics of the present invention can be better understood.

[0029] see figure 1 and figure 2 , a method for estimating the space volume of an artificial reef according to multi-beam water depth data in an embodiment of the present invention, comprising the steps of:

[0030] S1: Use the multi-beam bathymetry system to measure the water depth data of the artificial reef group and the sea area around the artificial reef group. The artificial reef group includes multiple artificial reefs;

[0031] In step S2, the data is gridded, and the maximum rate of change generated by calculating the elevation data of a first data point and the distance between eight second data points adjacent to the first data point is expressed Seabed slope for the first data point.

[0032] Using the ma...

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Abstract

The invention provides a method for estimating the empty volume of an artificial fish reef according to multi-beam water depth data. The method comprises the following steps: S1, measuring water depth data of an artificial fish reef cluster and a sea area around the artificial fish reef cluster by using a multi-beam sounding system; s2, calculating the seabed gradient by using the water depth data; s3, determining the distribution of artificial fish reefs according to the seabed gradient, and extracting first water depth data in an envelope line; s4, making a difference between the first water depth data and second water depth data when the artificial fish reef is not put into the reef, obtaining the reef body height of the artificial fish reef, and calculating the occupied area of the artificial fish reef; s5, multiplying the height of the reef body by the occupied area to calculate the empty volume of the artificial fish reef, and calculating the empty volume of the unit fish reef and the total empty volume of the artificial fish reef group. According to the method for estimating the empty volume of the artificial fish reef according to the multi-beam water depth data, the fish reef distribution is determined by using the high-resolution water depth data measured by the multi-beam sounding system, and the actual putting position and the actual empty volume of the artificial fish reef are conveniently determined at low cost.

Description

technical field [0001] The invention relates to the technical field of marine engineering measurement and calculation, in particular to a method for estimating the space volume of artificial reefs based on multi-beam water depth data. Background technique [0002] Artificial fish reefs are structures artificially set up in the sea. The purpose is to improve the ecological environment of the sea area, create a good environment for marine organisms to inhabit, and provide places for fish to reproduce, grow, feed and shelter enemies, so as to achieve protection, multiplication and The purpose of increasing catches. The placement of artificial reefs is one of the important links in the process of artificial reef construction. The quality of the placement results affects the realization of the artificial reef function. At present, the placement of artificial reefs is often based on visual inspection or GPS positioning. Among them, due to the limitations of various factors such a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S15/88G01S7/539
CPCG01S15/88G01S7/539Y02A40/81
Inventor 杨伟林军钟威
Owner SHANGHAI OCEAN UNIV