Aerostat airbag detection system based on digital speckle correlation method

A digital speckle correlation and detection system technology, applied in the field of aircraft detection, can solve the problems of rough detection results and achieve high precision

Inactive Publication Date: 2012-01-11
CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
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Problems solved by technology

[0005] In view of the lack of rough detection results of the existing manual detection methods for aerostat capsules, the present invention provides a set of detection schemes and systems based on digital speckle correlation technology

Method used

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  • Aerostat airbag detection system based on digital speckle correlation method
  • Aerostat airbag detection system based on digital speckle correlation method
  • Aerostat airbag detection system based on digital speckle correlation method

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Embodiment Construction

[0018] Combine below Figure 1-Figure 3 The present invention will be further described.

[0019] Such as figure 1 As shown, the aerostat capsule detection system based on the digital speckle correlation method is composed of a main control platform 1 , an orbital device 2 , an image acquisition unit 3 , a loading device 4 and a data processing unit 5 . Wherein the main control platform 1 includes a control unit 6 and a display unit 7 . The detection process is divided into three stages, namely primary acquisition, secondary acquisition and data processing. When the detection starts, the control unit 6 first sends a control command to the track device 2 to make the camera guide rail rotate relative to the aerostat capsule (either a rotating guide rail or a rotating capsule) according to a set angle. When turning to a position, the control unit 6 triggers the image acquisition unit 3 to take pictures. When the guide rail rotates one circle relative to the capsule, the over...

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Abstract

The present invention discloses an aerostat airbag detection system based on a digital speckle correlation method, and belongs to the technical field of the aircraft detection, wherein the aerostat airbag detection system is applicable for detecting defects and leaks on the aerostat airbag surface. The detection system comprises a main control platform, a track apparatus, an image acquisition unit, a loading device and a data processing unit. According to the present invention, during detecting, the track apparatus providing with a camera is provided for carrying out overall shooting for the aerostat airbag; then the pressure difference between the inner and the outer of the airbag is changed through controlling the loading device on the airbag to enable the airbag to be deformed; then the overall shooting is performed again for the deformed airbag; finally, the digital speckle correlation technology is adopted for processing the two shot images to obtain the displacement and the strain distribution of the airbag surface so as to realize the detections of the defects and the leaks on the airbag. The system has characteristics of non-destructive detection, full field detection, high precision, quantification and automation, and provides a new solution scheme for detection of the aerostat airbag performance.

Description

technical field [0001] The invention relates to an aerostat capsule detection system based on a digital speckle correlation method, which is suitable for detecting defects and loopholes on the surface of the aerostat capsule, and belongs to the technical field of aircraft detection. Background technique [0002] As a kind of aircraft that relies on buoyancy to lift into the air, aerostats have the advantages of long time in the air, good safety performance, and high cost-effectiveness. They have wide applications and good prospects in the fields of early warning detection, earth observation, monitoring and security. The buoyancy of the aerostat comes from the light gas such as helium or hydrogen in the capsule. The defects and holes on the surface of the capsule will cause abnormal stress concentration and gas leakage of the capsule, which will greatly affect the service life of the aerostat. . These defects and loopholes mainly come from two aspects. One is the flaws in th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/88G01M3/38
Inventor 曹鹏涛赵攀峰苏润荣海春李劲松
Owner CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
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