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Ship steel plate dynamic three-dimensional measuring system based on projection and multi-view vision

A three-dimensional measurement, multi-eye vision technology, applied in measurement devices, instruments, optical devices, etc., can solve the problems of lack of texture on the surface of steel plates, difficult visual measurement methods, etc.

Inactive Publication Date: 2013-06-12
史金龙
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the present invention, the visual measurement method is adopted, but since the surface of the steel plate often lack

Method used

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  • Ship steel plate dynamic three-dimensional measuring system based on projection and multi-view vision
  • Ship steel plate dynamic three-dimensional measuring system based on projection and multi-view vision
  • Ship steel plate dynamic three-dimensional measuring system based on projection and multi-view vision

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Embodiment Construction

[0016] The hardware connection of the present invention is as figure 1 As shown, four 18-megapixel synchronous high-resolution industrial cameras and a projector with a brightness of 7,000 lumens are fixed above the steel plate to be measured. The four industrial cameras and the projector are connected to the industrial computer through USB data cables. The computer collects image data, and sends the image data to the server through the network cable, and the server performs three-dimensional measurement. The distance between the four cameras is 60cm. The projector is placed in the middle of the four cameras and is on the same plane as the four cameras. The camera, projector, and industrial computer are installed on the same measuring frame.

[0017] The software structure of the present invention is as figure 2 As shown, the camera control module and the three-dimensional surface measurement module are running in the server; an agent program is running on the industrial com...

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Abstract

The invention relates to a measuring system which is used for ship steel plate bending deformation in the process of ship manufacturing, in particular to a ship steel plate dynamic three-dimensional measuring system based on projection and multi-view vision. Four synchronous high-resolution industrial cameras with 18 million pixels and a projector with 7000 lumens are arranged above a measured steel plate, the four industrial cameras and the projector are connected on an industrial personal computer through a universal serial bus (USB) data line, the industrial personal computer is responsible for collecting of image data and sends the image data to a server through a reticle, and the server conducts three-dimensional measuring. The ship steel plate dynamic three-dimensional measuring system is not contacted with the surface of a steel plate, and can automatically, timely, conveniently and precisely measure three-dimensional size of a ship steel plate.

Description

technical field [0001] The invention relates to a measurement technology for bending deformation of a ship hull steel plate in a ship manufacturing process, in particular to a dynamic three-dimensional measurement system for a ship steel plate based on projection and multi-eye vision. technical background [0002] The bending of ship steel plates is an important part of ship manufacturing. Since the steel plate used for ships is relatively thick, it is very difficult to accurately bend a thick steel plate to the shape required by the design. At present, shipbuilding companies mostly use the method of manual beating after burning, and then comparing with the target model. Due to the high labor intensity, time-consuming, low precision and low efficiency of the current processing methods, our company has developed an automatic control system for ship steel plate bending. The problem that must be solved in this system is how to measure the three-dimensional shape of ship steel ...

Claims

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Application Information

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IPC IPC(8): G01B11/245G01B11/25G01B11/16
Inventor 史金龙
Owner 史金龙
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