Vision-Guided Item Singulation Using Column Segmentation
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Solution Overview
Problem
Material handling facilities face inefficiencies in receiving, storing, and shipping items due to the lack of automated systems that facilitate the processes of item singulation, sortation, storage, and shipping, leading to increased costs and time consumption.
Innovation Solution
An item singulation system comprising an input conveyor, a vision system, a separation conveyor, and an output conveyor, with optional turn and omnidirectional conveyors, that identifies and separates items using imaging data to transfer singulated items to downstream processes efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If automated systems are implemented for item singulation and sortation, then productivity and efficiency are improved, but device complexity increases
Solution Approach 1:
The system divides items into discrete columns using separation conveyors, allowing individual processing of each column. This segmentation enables automated singulation while maintaining manageable system complexity by handling items in organized groups rather than as a continuous stream.
Solution Approach 2:
Vision systems serve as intermediaries between the physical item stream and the control system. The vision system captures images, processes them to identify item characteristics, and provides data to the control system for automated decision-making, reducing the complexity of direct mechanical interaction.
2Manufacturing precision
If vision systems are used to identify and separate items, then manufacturing precision is improved, but device complexity increases
Solution Approach 1:
The system replaces manual inspection and sorting mechanisms with vision systems that use optical sensors and image processing algorithms. This substitution achieves high identification precision while reducing the mechanical complexity of physical inspection devices.
Solution Approach 2:
The vision system creates digital copies (images) of physical items for analysis. This copying allows the system to examine item characteristics without physical contact, maintaining precision while simplifying the interaction between the sorting mechanism and the items.
3Productivity
If items are maintained as a single file for transfer, then productivity is improved, but the difficulty of detecting and measuring increases
Solution Approach 1:
The vision system performs preliminary identification and column determination before the actual separation and transfer processes. By pre-organizing items into identified columns and providing advance notice to the control system, the system maintains efficient single-file transfer while reducing the difficulty of detection during the critical transfer moment.
Data Source
AI summary
Item singulation systems and methods may include an input conveyor, a vision system, and an output conveyor that receives items from the input conveyor. The vision system may determine individual columns of items from among a plurality of items on the input conveyor. Operations of the input conveyor and output conveyor may be controlled substantially as a pull system to transfer individual columns of items to the output conveyor, such that singulated items can be transferred by the output conveyor to downstream processes.