Method for detecting emergent laser rays of laser level based on machine vision

A laser level meter and machine vision technology, applied in the direction of instruments, measuring devices, etc., can solve the problems of failure to realize automation, stop, and inability to intelligently judge the width and position of the outgoing laser line, and achieve the effect of accurate positioning

Active Publication Date: 2017-03-29
SHANGHAI UNIV
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Problems solved by technology

However, the detection of laser level is still relatively traditional. The detection of most laser level products still stays in manual nak

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  • Method for detecting emergent laser rays of laser level based on machine vision
  • Method for detecting emergent laser rays of laser level based on machine vision
  • Method for detecting emergent laser rays of laser level based on machine vision

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Embodiment Construction

[0030] The present invention will be further described below in conjunction with the accompanying drawings and preferred embodiments.

[0031] Such as figure 1 As shown, a machine vision-based laser level meter exit laser line detection method includes the following steps:

[0032] 1) Real-time collection of multiple image data of multiple horizontal or vertical laser lines; that is, using multiple cameras installed on the detection frame to collect real-time image data of laser lines within the field of view of each camera. Such as figure 2 As shown, 1 is the laser level, 2 is the placement position of the laser level, and there is an opening below it to locate whether the laser level is placed correctly. 3, 6 and 7 are a set of calibration boards, mounting brackets and cameras to collect the laser lines of each part respectively. Among them, 3 cameras collect images of the positioning points at the bottom of the laser level, and 6 three groups of cameras are separated by...

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Abstract

The invention discloses a method for detecting the emergent laser rays of a laser level based on machine vision. The method comprises the following steps: 1) acquiring the data of a plurality of images of a plurality of horizontal or vertical laser rays in real time; 2) transmitting the image data to a PC; 3) preprocessing images; 4) detecting the positions of laser rays in every image and determining the information like the width of the laser rays; 5) fusing the related image information of the laser rays and determining whether the positional information of straight laser rays undergo emergent offset along top-to-bottom and left-to-right directions; 6) fusing the width information of the plurality of images of the laser rays and determining whether each laser ray is less than or equal to a prescribed diffraction angle so as to guarantee that width meets production requirements; and 7) displaying information indicating whether the laser level is qualified on a human-computer interface, presenting determination results and bases, and storing the number of the detected laser level and the widths, positions and other information of the detected laser level in every direction into a database. The method can realize precision identification of the positions of the laser rays and accurate measurement of the widths of the laser rays.

Description

technical field [0001] The invention belongs to the fields of automatic control, artificial intelligence technology and machine vision, and in particular relates to a method for detecting laser lines emitted by a laser level meter based on machine vision. Background technique [0002] In recent years, with the continuous development of modern industry and intelligent manufacturing technology, all walks of life have more or less used modern intelligent automatic testing equipment in actual life and production to replace traditional manual testing. Among them, industrial visual inspection technology is also developing rapidly, and has developed into a systematic new edge-crossing comprehensive engineering discipline. Due to the continuous progress of computer technology, machine vision technology, artificial intelligence technology and control theory, applications such as machine vision industrial inspection and product standard judgment provide systematic theoretical tools an...

Claims

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Application Information

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IPC IPC(8): G01C25/00
Inventor 费敏锐王晓真王海宽杨傲雷张勇
Owner SHANGHAI UNIV
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