Machine vision based turn plate angle high-precision online measurement method

Abstract

The invention discloses a machine vision based turn plate angle high-precision online measurement method. Real time image collection is performed on mark round hole points in a turn plate by utilizinga monocular industrial camera. Through vision and image metrology analysis on acquired images, position information of the mark round hole points in the turn plate can be obtained. Then rotation angle information can be calculated through a geometric method. The advantages of the invention achieved in angle measurement include high measurement speed and realization of real time online measurement; avoidance of influence and damage to working piece surface through implementation of a measurement function by adoption of a non-contact technology; and elimination of interference on measurement results due to lighting environment complexity, spray liquid, water spots and the like in a production field through adoption of an improvement algorithm in the highest level.

Description

technical field [0001] The invention relates to the technical field of machine vision and optical image measurement, in particular to a high-precision online angle measurement method based on machine vision and optical image measurement technology. Background technique [0002] The traditional methods of workpiece angle measurement are mostly carried out manually, using simple mechanical devices or optical instruments, etc. The measurement process is cumbersome, the measurement efficiency is low, and the measurement process is easily affected by human errors. With the development of the manufacturing industry, the requirements for measurement accuracy and speed are getting higher and higher, and the traditional methods can no longer meet the development requirements of industrial production automation. [0003] Machine vision is to make the machine have the function of imitating biological vision, and obtain the required identification or measurement information by obtaining...

AI Technical Summary

Problems solved by technology

[0002] The traditional methods of workpiece angle measurement are mostly carried out manually, using simple mechanical devices or optical instruments. The measurement process is cumbersome, the measurement efficiency is low, and the measurement process is easily affected by human errors.

With the development of the manufacturing industry, the requirements for measurement accuracy and speed are getting higher and higher, and the traditional methods can no longer meet the development requirements of industrial production automation.

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