Structured light-based high-speed detection system and method for railway fastener

A railway fastener and detection system technology, applied in the field of devices in the field of optical detection technology, can solve the problems of poor versatility and slow recognition speed, and achieve the effect of fast speed, strong versatility and less information

Inactive Publication Date: 2011-10-19
SHANGHAI JIAO TONG UNIV +1
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  • Abstract
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Problems solved by technology

[0006] Aiming at the above-mentioned deficiencies in the prior art, the present invention provides a high-speed detection system and method for railway fasteners based on structured light, which solves the defects of slow recognition speed and poor versatility in the prior art, and can be applied to the online detection of missing railway rail fasteners. Fast detection, with the advantages of fast recognition speed, good versatility and strong adaptability

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  • Structured light-based high-speed detection system and method for railway fastener

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Embodiment

[0042] Such as figure 1 with figure 2 As shown, this embodiment includes: a laser light source 1, a high-speed camera 2 and a processing system 3, wherein: the laser light source 1 and the high-speed camera 2 are respectively arranged above the area where the fastener to be tested 4 is located, and respectively emit a group of structured light The high-speed camera 2 shoots the image of the fastener area. The high-speed camera 2 is connected to the processing system 3 and transmits the image. The processing system 3 performs image processing and judgment to obtain the detection result.

[0043] The laser light source 1 is specifically arranged in the fairing 9 at the bottom of the compartment above the fastener. The laser light source 1 is composed of a plurality of independent semiconductor laser line light sources 1 arranged in a row, and the laser wavelength is 628nm.

[0044] The semiconductor laser line laser light source 1 vertically irradiates the area where the faste...

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Abstract

A structured light-based high-speed detection system and a method for railway fasteners belongs to the technical field of optical detection, and the system comprises: a high-speed camera, a laser source, and a processing system, wherein the laser source and the high-speed camera are respectively disposed at the upper part of a fastener region to be detected, and emit respectively a set of structured light to the region of the fastener; the high-speed camera photographs the image of the fastener region; the high-speed camera is connected to the processing system and the image is transferred; the processing system performs image treatment and determines to obtain the detected results. The invention solves the defects of low identification speed and poor generality in the prior art, is applicable to the on-line rapid detection of railway steel rail fastener loss, and has the advantages of high identification speed, good generality, and strong adaptability.

Description

technical field [0001] The invention relates to a device in the technical field of optical detection, in particular to a high-speed detection system and method for railway fasteners based on structured light. Background technique [0002] At present, the domestic inspection of railway fasteners relies on manual inspection, which is time-consuming, laborious, and unreliable, and lacks practical and feasible inspection methods and methods. [0003] The existing fastener detection technology at home and abroad is visual image detection technology, such as the VIS system of ENSCO in the United States, the photoelectric track detection system developed by Atlas Electronic in Germany, and the high-speed vehicle-mounted track image recognition system of Beijing Fostar Company. This method is to use a high-speed camera to collect a complete picture of the fastener, and then perform image processing to determine whether the fastener exists. Nowadays, the image acquisition rate of hi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/88
Inventor 赵辉陶卫刘伟文刘满华王卫东任盛伟杨金峰刘晖钱广春刘炜浩
Owner SHANGHAI JIAO TONG UNIV
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