AR Robot Coordinate Recognition With Simultaneous Marker Detection
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Solution Overview
Problem
Current methods for recognizing a robot coordinate system using augmented reality devices are burdensome, requiring advance determination of marker positions, recording of robot models, and manual alignment, and are prone to display displacement issues, especially during rotational movements.
Innovation Solution
A robot system with reference indicators having clear coordinates and a robot coordinate system identification indicator allows simultaneous detection by an AR device, enabling easy and precise recognition of the robot's position or orientation, and suppressing AR graphic display displacement by placing indicators within the AR device's movement range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If marker detection method is used for robot coordinate system recognition, then robot position can be identified, but marker position determination becomes burdensome and time-consuming
Solution Approach 1:
The patent applies preliminary action by pre-defining the coordinate system origin and axis directions at the robot base in advance. This eliminates the need for time-consuming marker position determination during actual operation, as the coordinate system is already established and can be directly used for robot position recognition.
Solution Approach 2:
The patent uses image recognition to create a digital copy of the robot's physical position and orientation. By capturing images and recognizing the robot's coordinates through image processing, the system obtains accurate position information without physical markers, reducing time consumption while maintaining precision.
2Measurement precision
If manual alignment method is used for AR graphic positioning, then coordinate system can be established, but the process becomes extremely burdensome and time-consuming
Solution Approach 1:
The patent replaces the manual mechanical alignment process with automated image recognition and coordinate calculation. Instead of manually aligning AR graphics with the robot's coordinate system, the system uses image processing to automatically determine the robot's position and orientation, then overlays the coordinate system information, dramatically reducing alignment time while maintaining or improving accuracy.
3Adaptability or versatility
If AR device moves away from marker after recognition, then operational flexibility increases, but display position displacement occurs
Solution Approach 1:
The patent implements continuous feedback by repeatedly capturing images and recalculating the robot's coordinates based on its current position. As the AR device moves, the system continuously updates the coordinate information and re-aligns the AR graphics accordingly, ensuring that display position accuracy is maintained even when the device moves away from the initial recognition position.
Data Source
AI summary
The present invention provides a robot system capable of, regardless of the type of the robot, precisely measuring the positional relationship between an AR device and markers, and comparatively easily and with high precision recognizing the position or orientation of the robot with the AR device. The robot system includes a marker detecting unit that simultaneously detects a reference marker and a robot coordinate system identification marker in one detection operation; a robot system information receiving unit that receives information regarding the robot system; a robot coordinate system identifying unit that identifies a coordinate system of a robot from the position of the robot coordinate system identification indicator and coordinate system information; an AR device that displays the information regarding the robot system, based on the coordinate system of the robot; a coordinate system setting unit that sets an origin by moving the robot to a designated position; and a coordinate system information transmission unit that transmits the coordinate system information set by the coordinate system setting unit to the AR device.