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Current trigger camera module and welding pool image tracking system

A camera module and image tracking technology, which is applied in image enhancement, image analysis, image data processing, etc., can solve problems such as splashing and interference, and achieve the effects of less interference, fast processing speed, and preservation of molten pool characteristics

Inactive Publication Date: 2017-04-26
GUILIN UNIV OF AEROSPACE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a current-triggered camera module and a weld pool image tracking system. The technical problem to be solved is: serious interference problems such as image flickering and splashing caused by different acquisition brightness at different times

Method used

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  • Current trigger camera module and welding pool image tracking system
  • Current trigger camera module and welding pool image tracking system
  • Current trigger camera module and welding pool image tracking system

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Embodiment Construction

[0038] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0039] Such as figure 1 As shown, a current trigger camera module includes a current sensing unit 1, a waveform shaping conversion unit 2 and a variable counting unit 3;

[0040] The current sensing unit 1 is connected to the power line of the electric welding machine 12, and is used to sense the input current of the electric welding machine 12 and generate a current signal;

[0041] The waveform shaping conversion unit 2 is connected with the current sensing unit 1, and is used for signal shaping the current signal, and outputs a rectangular pulse waveform signal with the same frequency as the input current of the welding machine 12;

[0042] Described variable counting unit 3, its input end is connected with wave...

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Abstract

The invention relates to a current trigger camera module and a welding pool image tracking system. The current trigger camera module comprises a current sensor unit, a waveform shaping and transforming unit and a variable counting unit. The current sensor unit senses input current of an electric welding machine and generates a current signal; the waveform shaping and transforming unit carries out signal shaping on the current signal and outputs a rectangular pulse waveform signal, the frequency of which is same with that of the input current of the electric welding machine; and the variable counting unit analyzes the rectangular pulse waveform signal, detects a welding short-circuit transition period of the electric welding machine, generates a first trigger signal at the welding short-circuit moment of the electric welding machine, and triggers the camera to photograph a welding pool according to the first trigger signal. Compared with the prior art, the current trigger camera module and the welding pool image tracking system can detect the welding short-circuit transition period, and can trigger the camera to collect the welding pool images in the welding short-circuit phase; and the collected images are similar in brightness and small in interference.

Description

technical field [0001] The invention relates to the field of welding technology, in particular to a current trigger camera module and a weld pool image tracking system. Background technique [0002] CO 2 Gas shielded welding has become one of the most widely used gas shielded welding methods because of its low cost, high efficiency and easy operation. The state of the molten pool can directly reflect the welding quality. The acquisition and analysis of the molten pool image is of great significance to improve the welding quality and welding productivity, and realize welding automation. However CO 2 The gas itself has strong oxidizing properties, so it will cause alloy elements to burn and cause strong splashes during the welding process, causing the molten pool to be severely disturbed by arc light and noise pollution, which brings great difficulties to the sensing of molten pool images. difficulty. Most current CO 2 The melting pool acquisition method is to collect ima...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06T3/00G06T7/10G06T3/40
CPCG06T3/4007G06T2207/30152G06T2207/10004G06F2218/22G06F2218/04G06T3/04
Inventor 覃科吴江蒋志勇黄锐
Owner GUILIN UNIV OF AEROSPACE TECH
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