Industrial robot three-dimensional real-time and high-precision positioning device and method

Abstract

The invention discloses an industrial robot three-dimensional real-time and high-precision positioning device and method. The device comprises an industrial robot system, an industrial computer and a camera unit, wherein the industrial computer is connected with the industrial robot controller through a first gigabyte Ethernet, and then is connected into the industrial robot system, the industrial computer is connected with the camera unit through a second gigabyte Ethernet, and the camera unit is an active camera unit or a multi-camera unit. The method includes the following steps that: the position state of the camera unit is set according to the positions of a feature point and an actual target point; a mapping relationship of three-dimensional coordinates in a robot space and two-dimensional coordinates in a camera space is established; the position of a target point in the three-dimensional robot space is obtained, the industrial robot controller sends a command so as to control a robot to move to the target point and position the robot on the target point; and finally, the robot is positioned on the actual target point through judgment. The industrial robot three-dimensional real-time and high-precision positioning device and method of the invention have the advantages of no need for calibration, high precision, wide field of vision and high real-time performance.

Description

technical field [0001] The invention relates to the technical field of industrial robot visual servoing, in particular to a three-dimensional real-time high-precision positioning device and method for an industrial robot. Background technique [0002] With the expansion of the application range of industrial robots and the needs of various complex occasions, the visual servo of industrial robots is becoming more and more important. In the current practical application of industrial robots, due to problems such as positioning accuracy, real-time performance, and the need for calibration, only a few occasions use robot visual servo positioning. With the development of the industrial robot industry, it will be an inevitable trend for industrial robots to have visual servo capabilities. . Real-time performance and positioning accuracy are the two most important indicators to verify the effectiveness and practicability of a robot vision positioning system, and are also key facto...

AI Technical Summary

Problems solved by technology

[0006] To sum up, the current three-dimensional positioning method of robots in industrial production has the following disadvantages: the system needs to be calibrated during the positioning process, the calibration error is large, the operation is complicated, and the positioning accuracy is low, which affects the work efficiency of industrial robots and hinders the development of industrial robots. development of

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