Vision-Guided Robotic Reorientation for Label-Visible Item Handling
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Solution Overview
Problem
Material handling systems face challenges in efficiently handling items with varying physical characteristics, such as rigid and flexible shapes, at high speeds while avoiding mishandling and physical damage, particularly in repositioning and reorienting items for accurate label scanning.
Innovation Solution
A material handling system incorporating a robotic tool with a vacuum gripper and sensors, controlled by a vision system and controller, to identify and reorient items based on their characteristics, ensuring reliable handling and label positioning for efficient conveyance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If robotic tools are used to pick and manipulate items at high speeds, then productivity is improved, but the risk of mishandling and physical damage increases
Solution Approach 1:
The vision system performs preliminary identification and characterization of items before the robotic tool interacts with them. The system determines item properties such as rigidity, shape, and orientation in advance, allowing the robotic controller to pre-plan manipulation strategies that prevent mishandling while maintaining high-speed operation
Solution Approach 2:
The robotic tool and end effector configuration is dynamically adjusted based on real-time item characteristics detected by the vision system. The system adapts gripping forces, manipulation trajectories, and end effector types according to each item's specific properties, enabling high-speed handling while preventing damage through customized interaction parameters
2Adaptability or versatility
If the material handling system handles items with varying physical characteristics, then adaptability is improved, but device complexity increases
Solution Approach 1:
The vision system serves multiple functions: identifying item type, determining physical characteristics, calculating orientation, and guiding robotic manipulation. This multi-functional approach allows a single system to handle diverse item types (rigid boxes, flexible packages, irregular shapes) without requiring separate specialized equipment for each item category
Solution Approach 2:
The system replaces complex mechanical classification and routing mechanisms with a vision-based identification and control system. Instead of using physical guides and mechanical sorters for different item types, the vision system detects item characteristics and the robotic controller adjusts manipulation parameters digitally, reducing mechanical complexity while maintaining versatility
3Measurement precision
If sensors and vision systems are used to identify item characteristics, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The system combines multiple sensing functions (image capture, dimension measurement, orientation detection, and physical characteristic identification) into an integrated vision system. This consolidation achieves high measurement precision for diverse item parameters while reducing overall system complexity compared to using separate specialized sensors for each measurement type
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system effectively repositions and reorients items to ensure label visibility for scanning, preventing mishandling and damage, while maintaining high-speed operation.
Implementation Method 1
A robotic tool including a robotic arm portion and a vacuum gripper
Data Source
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Figure 3A
AI summary
The present disclosure relates to a material handling system for manipulating items. The material handling system includes a repositioning system comprising a robotic tool which includes a robotic arm portion and an end effector. The robotic tool is configured to manipulate an item in a first orientation and reorient the item to a second orientation. The material handling system further includes a vision system having one or more sensors positioned within the material handling system. The vision system is configured to generate inputs corresponding to the characteristics of the items. The material handling system may further include a controller executing instructions to cause the material handling system to identify the item in the first orientation, based on the one or more characteristics of the item, initiate, by the repositioning system, picking of the item in the first orientation, and re-orient the item in the second orientation.