Vision-based laser demarcation device precision rapid detection system

Abstract

The invention relates to a vision-based laser demarcation device precision rapid detection system, which comprises a standard laser demarcation device, a to-be-detected laser demarcation device and an equipment support frame, is composed of a plurality of small supports, and is convenient and flexible to adjust. Each laser line is parallel to three supports, the three supports are approximately placed in the same straight line, each support is provided with a camera and a glass sheet, scale paper is placed in the side, close to the camera, of the glass sheet, and the laser lines are projected to the glass sheet from the other side and are displayed on the scale paper through the glass sheet. A result shot by the camera is directly transmitted to a computer end by using a USB for image processing, so that a precision index of the laser demarcation device is obtained. Through more reasonable arrangement of the detection structure, distortion of the shot picture is avoided, and the position information of the laser line and the scale line is obtained by using a machine vision detection technology, so that the detection cost can be reduced, damage of laser to human eyes is reduced, and personal errors in the detection process are also avoided.

Description

technical field [0001] The invention relates to a detection system, in particular to a vision-based rapid detection system for the accuracy of a laser line thrower, and belongs to the technical fields of machine vision and intelligent systems. Background technique [0002] Laser line meter, also known as laser line marking instrument, laser level, etc., is a new type of non-contact line marking measuring instrument. This instrument is easy to use and low in cost, and it is a precision measuring instrument for benchmarking. Its working principle is to use a semiconductor laser diode to emit laser light with a wavelength of 635nm, and then penetrate through a cylindrical lens or a glass rod, thereby projecting red horizontal laser lines and vertical laser lines for reference calibration. In recent years, some green and blue laser line projectors have appeared on the market, and have achieved good results. [0003] After the precision-tested laser line projector reaches a sta...

AI Technical Summary

Problems solved by technology

This technology mainly has the following two problems: the first is that for a laser line projector with multiple horizontal laser lines and vertical laser lines, it takes multiple rotations to detect all the accuracy indicators; the second is that all CCDs of this technology Both are fixed on the wall, which is not conducive to the replacement of the system

This technology mainly has the following two problems: the first is that the number of collimators required is large, and the cost of the device is high; the second is that the calibration platform is fixed and bulky, which is not conducive to the installation and movement of the system

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