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Conveying belt longitudinal tearing online detecting method based on line laser images

A technology of longitudinal tearing and detection method, which is applied in the direction of conveyors, conveyor objects, conveyor control devices, etc., to achieve the effect of improving computing speed, simple algorithm, and small amount of calculation

Inactive Publication Date: 2017-01-04
TIANJIN POLYTECHNIC UNIV
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Problems solved by technology

[0015] The purpose of the present invention is to propose a method for online detection of longitudinal tearing of conveyor belts based on line laser images to solve the problem of speed and accuracy of online detection of longitudinal tearing of conveyor belts

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  • Conveying belt longitudinal tearing online detecting method based on line laser images
  • Conveying belt longitudinal tearing online detecting method based on line laser images
  • Conveying belt longitudinal tearing online detecting method based on line laser images

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Embodiment Construction

[0031] The specific implementation of the present invention will be described in detail below in conjunction with the accompanying drawings and examples.

[0032] The overall operation process of the method proposed by the present invention is as attached figure 1 shown. The purpose of the present invention is to propose an online detection method for the longitudinal tear of the conveyor belt based on the line laser image, so as to solve the problem of speed and accuracy of the online detection of the longitudinal tear of the conveyor belt. The technical solution adopted in the present invention specifically includes the following steps:

[0033] Step 1, read a conveyor belt line laser image I collected by an area array camera, and a conveyor belt line laser image acquired by the area array camera is shown in the attached figure 2 As shown, the image size is 800 × 600 pixels, by the attached figure 2 It can be seen that the laser stripes of the line laser image are brigh...

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Abstract

The invention discloses a conveying belt longitudinal tearing online detecting method based on line laser images, belongs to the field of nondestructive detection, and solves the speed and accuracy problems of conveying belt longitudinal tearing online detection. Based on the characteristics of the line laser images in longitudinal tearing of a conveying belt, a laser stripe skeleton, a domain differential determining break point position and a second derivative determining fluctuation abnormal position are extracted by a maximum method to detect and mark a conveying belt longitudinal tearing fault area. The method can quickly and accurately detect the conveying belt longitudinal tearing fault online, and is excellent in application value in industrial application.

Description

technical field [0001] The invention belongs to the field of non-destructive testing, in particular to an online detection method for longitudinal tearing based on line laser images in the non-destructive testing of conveyor belts. Background technique [0002] During the use of the conveyor belt, due to scratches by foreign objects or obstacles such as scrap steel or coal gangue, improper installation and adjustment of the belt conveyor, uneven load caused by incorrect blanking position at the transfer point, etc., longitudinal tearing often occurs Fault. The failure is sudden and concealed. Due to the lack of timely detection and treatment, longitudinal tearing accidents occur frequently, resulting in production stoppage, loss of transported materials, equipment damage and casualties, seriously affecting safe production [1-3] . [0003] For the detection of the longitudinal tear of the conveyor belt, in addition to manual detection, researchers have also proposed a metho...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65G43/02G01N21/89
CPCB65G43/02B65G2203/0275B65G2203/041G01N21/8901
Inventor 李现国苗长云杨彦利明紫旭申立芳姜航旗张灿
Owner TIANJIN POLYTECHNIC UNIV
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