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A single person shallow water photogrammetry device

A photogrammetry and shallow water technology, applied in camera devices and other directions, can solve problems such as inability to meet accuracy requirements, and achieve the effects of light weight, simple structure and small volume

Inactive Publication Date: 2018-06-01
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The near-water shooting of ships cannot meet the accuracy requirements

Method used

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  • A single person shallow water photogrammetry device
  • A single person shallow water photogrammetry device
  • A single person shallow water photogrammetry device

Examples

Experimental program
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Effect test

Embodiment Construction

[0037] See attached figure 1 , 3 , 8, the present invention is made up of multiple cameras, 6 hollow tubes with a length of about 1 meter and accessories. The three camera fixing tubes 8 (left, middle and right) are connected together through two main T-plugs 4, the two tail tubes 3 are connected with the camera fixing tube 8 through the main T-plugs 4, and the hand tube 9 is connected through the T-plug of the hand tube. 2 is connected with two tail pipes 3, and each pipe is closely matched with the T plug to achieve the purpose of fixing and waterproofing. After the three camera fixing tubes 8 are connected as one, a watertight plug 11 is used at both ends to seal the two ports of the hollow tube.

[0038] See attached Figure 5 And attached Image 6 A set of power units consisting of battery 14, waterproof switch 1, and waterproof outer rotor motor 13 are installed in the two tail pipes 3. The waterproof outer rotor motor 13 is fixed at the end of the tail pipe 3, and t...

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Abstract

The invention discloses a single shallow-water photogrammetric device and belongs to the field of underwater photogrammetric detection. The single shallow-water photogrammetric device comprises a camera fixing pipe and two tail pipes connected with the camera fixing pipe, wherein a power unit comprising a battery, a waterproof switch and a waterproof outer-rotor motor is mounted in each tail pipe, the waterproof outer-rotor motor is fixed at the tail end of the tail pipe, a propeller is arranged on the waterproof outer-rotor motor, and a ducted casing is arranged on the periphery of the propeller for protection and integrally fixed with the tail end of the tail pipe through a ducted casing support; a handheld pipe is connected between the two tail pipes; a group of spirit bubbles are mounted in the center of the handheld pipe; multiple groups of waterproof cameras are mounted on the camera fixing pipe at equal intervals. Blind-area-free shooting can be realized, the coverage width is large, and large-area three-dimensional surveying and mapping on a clear shallow-water area can be realized rapidly, efficiently and completely. Further, the single shallow-water photogrammetric device is small in size, light in weight and convenient to transport in various ways such as ocean and aviation.

Description

technical field [0001] The invention belongs to the field of underwater photogrammetry detection. Background technique [0002] Shallow water contains a large number of human and natural heritage, including underwater human architectural sites and relics, as well as natural heritage sites or environmental protection areas such as coral reefs, lagoons, and freshwater lakes, which require regular monitoring and protection. [0003] There are many methods of underwater mapping, including sonar, laser, underwater photogrammetry, etc. Among them, sonar has a long range but low accuracy, which is more suitable for measuring large areas of deep water areas; underwater photogrammetry has high accuracy, low operating costs, and high requirements for light intensity, so it is suitable for shallow water area measurements. Generally speaking, in shallow water areas such as lagoons, the maximum water depth usually does not exceed 10 meters, and the natural light intensity meets the requ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C11/02
CPCG01C11/02
Inventor 李哲周成传奇柴亚隆闫宇
Owner TIANJIN UNIV
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