High precision positioning system and method based on machine vision

Abstract

The invention discloses a high-precision positioning method and system based on machine vision. The positioning method first collects the position information of the product feature circle; then acquires the coordinate values ​​of multiple position points of the product feature circle on the image and imports them into the analysis software; and then Establish the approximation function of the center of the outer circle, and set the constraints of the approximation function; then solve the coordinates of the center of the circle, and judge the coordinates of the center of the circle; the positioning system includes a robot arm and a high-precision industrial camera fixed at the end of the robot arm , image processing system, computer-based data processing system; the mechanical arm drives the high-precision industrial camera to the outer circle of the product receiving port; the high-precision industrial camera collects the outer circle image of the product receiving port and transmits it to the image processing system; the image processing system obtains the product The position information of the characteristic circle and the coordinate value are transmitted to the data processing system; the data processing system solves the coordinates of the center of the circle and judges the solution result; the invention can improve the positioning accuracy of the robot.

Description

technical field [0001] The invention belongs to the field of machine vision, in particular to a high-precision positioning system and method based on machine vision. Background technique [0002] With the development of the intelligent industry, many industries have put forward new demands for automated production and testing. The traditional manual production and testing methods have been difficult to meet the needs of production and life, which restricts the development and improvement of productivity. With the development and improvement of computer and digital information technology, people begin to rely on robots to replace manual production and inspection. The robot industry is playing an increasingly important role in automated production and inspection. In the field of robots, certain precise information must be repeated. The utilization and extraction of computer vision, such as target tracking, navigation, detection, etc., all rely on various sensors to obtain info...

AI Technical Summary

Problems solved by technology

However, if the feature similarity of the robot’s active area is very high, after the particles move many times, the features collected by the sensor will be similar to the position features of many particles many times, and it is difficult to ensure the accuracy of positioning

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