Robot Manipulator Control Center Setting Using 3D Image Detection
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Solution Overview
Problem
Setting a control center for a robot manipulator's operation is a time-consuming and error-prone task, especially for inexperienced users, as it often requires sophisticated touch-up operations.
Innovation Solution
A robot controller and system that utilize an image processing unit to detect a position in a three-dimensional space from captured images of the robot manipulator, using a feature extraction model, and a coordinate system determination unit to set a control center based on designated positions, simplifying the setting process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a traditional touch-up operation is used to set a control center, then the coordinate system can be established, but the process becomes time-consuming and error-prone
Solution Approach 1:
The patent replaces the manual mechanical touch-up operation with an automated image processing system. The image processing unit captures images of the robot manipulator, extracts feature points automatically, and calculates the control center position through coordinate transformation, eliminating the need for time-consuming manual operations while maintaining positioning accuracy.
Solution Approach 2:
The patent creates a digital copy of the robot manipulator's visual appearance through image capture and processing. By extracting feature points from images and establishing correspondence between image coordinates and robot coordinate systems, the system replicates the manual positioning process automatically, significantly reducing setup time while preserving measurement precision.
2Ease of operation
If a manual touch-up operation is performed, then the control center can be set, but the operation becomes complex and inviting errors for inexperienced users
Solution Approach 1:
The patent enables the system to perform the coordinate system setting automatically without requiring user expertise in manual touch-up procedures. The image processing unit autonomously captures images, extracts feature points, and calculates control center positions, allowing inexperienced users to complete the setup by simply providing reference points while the system handles the complex computations.
Solution Approach 2:
The patent introduces an image processing unit as an intermediary between the user and the robot control system. This intermediary automatically performs the complex coordinate transformation and control center calculation tasks, shielding users from the mathematical and procedural complexity while maintaining ease of operation through simple image-based input.
3Extent of automation
If automated image processing is used to detect position, then the setting process is simplified, but image processing capability is required
Solution Approach 1:
The patent integrates the image processing unit into the existing robot control system, making it a multi-functional component that handles both traditional control tasks and the new automated position detection function. This approach adds automation capability without requiring a completely separate system, balancing the extent of automation with manageable device complexity.
Data Source
AI summary
Provided is a robot control device capable of facilitating the work of setting a control center for controlling the operation of a robot. The robot control device controls a robot manipulator which is equipped with an end effector. The robot control device includes: an image processing unit that, by using a feature extraction model for detecting images of the robot manipulator, and position/posture information of the robot manipulator, detects, from images (M1, M2) in which at least part of the robot manipulator is captured, a position in a three-dimensional space which corresponds to designated positions (P1, P2) designated on the images, as a position relative to the robot manipulator; and a coordinate system determination unit that sets a control center, for controlling the operation of the robot manipulator, to the position detected in the three-dimensional space.