Robot Arm Handling Control for Packaged Article Detection
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Solution Overview
Problem
Robot arms face challenges in handling articles that are packaged together, as existing systems lack effective methods to determine and adapt to packaging states, leading to inefficient or unsuccessful operations.
Innovation Solution
A control device that acquires work information, uses sensor data to determine if articles are packaged together, and adjusts the handling method accordingly, including options to change the lifting operation or remove packaging, to ensure successful handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the robot arm performs lifting operations based on standard work information, then the handling process is simple and efficient, but it cannot adapt to articles that are packaged together, leading to handling failures
Solution Approach 1:
The system performs a preliminary lifting attempt using standard work information before detecting packaging issues. This preliminary action allows the system to identify packaged articles and switch to appropriate handling methods, thereby improving reliability without requiring complex preliminary detection mechanisms
Solution Approach 2:
The system uses sensor feedback during the lifting operation to detect whether articles are packaged together. Based on this feedback, the control device dynamically adjusts the handling method, enabling adaptation to packaged articles while maintaining a relatively simple control structure
2Measurement precision
If the system uses sensor data to detect packaging state, then handling accuracy improves, but the operation time and complexity increase
Solution Approach 1:
The system applies partial sensing by using sensors only when needed during the lifting operation rather than continuously monitoring all articles. This approach achieves sufficient packaging state detection accuracy while minimizing the time loss associated with comprehensive detection
3Productivity
If the robot arm handles articles without detecting packaging state, then the operation is fast and simple, but handling effectiveness decreases for packaged articles
Solution Approach 1:
The system executes a preliminary lifting attempt using standard procedures before detecting packaging issues. This allows most articles to be handled quickly without detection, while packaged articles are identified and handled with appropriate methods, maintaining both speed and effectiveness
Solution Approach 2:
The system uses real-time sensor feedback during lifting to identify packaged articles and dynamically adjusts the handling approach. This feedback mechanism enables the system to maintain high productivity for standard articles while ensuring reliable handling of packaged articles
Data Source
AI summary
A control method by a computer, the control method acquires work information including information on work performed by a robot arm and information on an article as a target of the work; causes the robot arm to perform an operation of lifting up a predetermined unit of articles based on the work information; determines that there is a possibility that a plurality of articles are packaged together based on sensor data obtained when the operation is being performed; and when it is determined that there is a possibility that a plurality of articles are packaged together, settles a handling method for the article according to the sensor data.