Movable Robot Vision Sensor Positioning
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Solution Overview
Problem
Existing movable robots lack reliable methods to accurately position themselves relative to machine tools for efficient operation, often resulting in unintentional contact and errors due to the absence of precise recognition and positioning systems.
Innovation Solution
A movable robot system equipped with a robot arm, a carriage, a vision sensor, and a controller that captures and processes images of recognition information on machine tools to determine alignment with pre-received partner information, ensuring the robot arm is only set to operate when correctly positioned, thereby preventing unintentional contact and ensuring accurate placement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a movable robot is used to perform operations for machine tools, then operation efficiency is improved, but positioning accuracy and reliability deteriorate due to lack of precise recognition systems
Solution Approach 1:
The patent replaces mechanical positioning methods with a vision-based recognition system. The vision sensor captures images of recognition information (marks) on machine tools, and the controller processes these images to determine precise positioning, substituting mechanical alignment with optical recognition and image processing.
Solution Approach 2:
The vision sensor creates an optical copy (image) of the recognition information on the machine tool. By capturing and processing this image copy, the system can identify and locate the machine tool without direct mechanical contact, enabling reliable positioning through information replication rather than physical measurement.
2Measurement precision
If visual confirmation of ID information is required for positioning, then positioning accuracy improves, but operation time increases due to manual verification
Solution Approach 1:
The system performs automatic recognition and positioning without requiring human visual confirmation. The vision sensor autonomously captures images of recognition information, and the controller automatically processes these images to determine positioning, enabling the system to serve itself rather than requiring manual intervention.
Solution Approach 2:
The patent replaces manual visual confirmation with automated image processing. The controller uses vision sensor data to automatically identify and locate machine tools, substituting human visual verification with computational image analysis, thereby maintaining precision while eliminating time loss.
3Speed
If the robot arm is positioned without verification, then operation speed increases, but unintentional contact and errors occur
Solution Approach 1:
The system performs preliminary verification by capturing images of recognition information and determining positioning accuracy before the robot arm executes operations. This advance verification ensures correct positioning is confirmed prior to contact, preventing unintentional errors while maintaining operational speed.
Solution Approach 2:
The vision sensor provides feedback information about the machine tool's location and identification. The controller uses this feedback to verify positioning accuracy before allowing the robot arm to operate, creating a closed-loop system that prevents unintentional contact through continuous verification.
Data Source
AI summary
This movable robot includes a robot arm which performs an operation for a machine tool, a carriage for moving the robot arm to a predetermined installation position, a vision sensor which is supported by the carriage together with the robot arm and which captures an image of recognition information provided on the machine tool when the robot arm is placed at the predetermined installation position, a partner information receiving section for receiving a partner information regarding the machine tool for which the robot performs the operation, and a controller which determines whether the information obtained from the vision sensor corresponds with the partner information when the robot arm is placed at the predetermined installation position by the carriage, and when it corresponds, the robot arm is set to be a state in which the robot arm can perform the operation.


