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An imaging-based gillnet mesh testing device and testing method

A technology for testing device and mesh number, which is applied to camera devices, counting of randomly distributed items, counting objects, etc., can solve the problems that errors cannot be re-examined and verified and corrected, manual counting methods are time-consuming, and errors are large. Achieve the effect of ensuring multiple recycling, convenient operation and accurate counting

Active Publication Date: 2021-03-09
SOUTH CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, when the net gear is carrying out fishing operations in the sea or the number of meshes is large (for example, the number of meshes exceeds 1000), the method of manual counting has great limitations
Moreover, the manual counting method takes a long time, has low efficiency, and has large errors
In addition, when the method of manual statistics produces large errors, it cannot be reviewed, verified and corrected.

Method used

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  • An imaging-based gillnet mesh testing device and testing method
  • An imaging-based gillnet mesh testing device and testing method

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Embodiment Construction

[0038] The present invention will now be further described in detail in conjunction with the accompanying drawings and embodiments. These accompanying drawings are all simplified schematic diagrams, and only illustrate the basic structure of the present invention in a schematic manner, so it only shows the configuration related to the present invention.

[0039] Such as figure 1 , figure 2 Shown, a kind of imaging-based gillnet mesh testing device and testing method (1), comprising: a imaging-based gillnet mesh testing device and testing method (1), the device is a body structure, The device is made of transparent material, including:

[0040] A test surface, the test surface is provided with a grid (2) with a scale;

[0041] A pressure piece (3), the pressure piece (3) can fix the gillnet on the test surface;

[0042] A marker, the marker can be marked on the surface of the test surface;

[0043] and an imaging component capable of imaging the test surface and the mark. ...

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Abstract

The invention discloses an imaging-based testing device and testing method for the mesh number of gill nets. The device is a body-shaped structure, and the device is made of a transparent material, including: a testing surface, which is provided with a belt The grid of scale; Pressure piece, described pressure piece can be fixed on the test surface of gillnet; Mark piece, described mark piece can mark on the surface of described test surface; Imaging piece, described imaging piece can be described The test surface and the markers are imaged. The test method includes marking the gillnet on the test surface, using imaging technology to mark the gillnet on the grid of the test surface and the length and width of the gillnet, and deduce the number of horizontal grids and vertical grids of the gillnet. By adopting the invention, the mesh number of the gill net can be obtained quickly, efficiently and accurately; moreover, it only needs to be washed with water after use, and can be reused many times.

Description

technical field [0001] The invention relates to a gillnet mesh count measuring device, in particular to an imaging-based gillnet mesh count rapid testing device and a gillnet mesh fast measuring method. Background technique [0002] Gillnet is a fishing gear that works on the principle of netting or netting. At present, gillnet is the most widely used fishing gear in my country's oceans and inland waters. The mesh number of gillnet refers to the number of vertical and horizontal meshes. The mesh number is an important technical parameter of gillnet, which is of great significance to the survey, test and management of fishing gear. The horizontal and vertical mesh numbers of gillnets are the key indicators to determine its main size. [0003] At present, the number of meshes of gillnets is mainly measured by manually counting each mesh one by one. This method is feasible when the net gear is in a non-fishing state and the number of meshes is small. However, when the net ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C11/02G01C11/04G06M11/00
CPCG01C11/02G01C11/04G06M11/00
Inventor 杨炳忠张鹏晏磊李杰杨吝
Owner SOUTH CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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