Shelving structure and validation apparatus for improved image processing of codes on storage bins
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Solution Overview
Problem
Imaging-based Kanban systems for inventory management face issues such as misalignment of camera views with bin angles, hidden optical codes due to bin stacking, and improper camera settings, leading to ineffective detection of replenishment signals.
Innovation Solution
A top shelf structure with enhanced optical code visibility and a validation apparatus, including a challenge board, to ensure proper camera alignment and image capture of optical codes, using a configuration with angled panels and optical codes on the structure to validate camera setup.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If bins are stacked or placed in front of each other on the top shelf, then inventory space is optimized, but optical codes become hidden and undetectable by the camera
Solution Approach 1:
The patent introduces a vertical dimension by placing the optical code on the front panel of the top shelf structure, which is positioned above the bins. This elevates the code detection plane from the bin surface level to the shelf structure level, allowing the camera to capture codes even when bins are stacked or positioned in ways that would normally obscure them.
Solution Approach 2:
The front panel with the optical code serves as an intermediary element between the bins and the camera. Instead of requiring direct line-of-sight to codes on the bins themselves, the system uses this intermediate panel as a detection surface that remains visible to the camera regardless of bin arrangement, thereby mediating the detection problem.
2Ease of manufacture
If the camera field of view is not properly aligned with the bin angle, then the imaging system is easier to install, but optical codes cannot be properly captured
Solution Approach 1:
The patent places the optical code on the front panel of the top shelf structure, which is a fixed, predetermined location with specific geometric properties. This localized placement creates a known reference point that defines the optimal camera viewing angle, allowing the camera to be installed in a standardized position rather than requiring custom alignment for each bin configuration.
Solution Approach 2:
The top shelf structure with its integrated front panel and optical code serves as a self-aligning reference for the camera. The fixed position and geometry of the code on the panel automatically provide the camera with a target for alignment, enabling the imaging system to properly capture codes without requiring complex adjustment procedures.
3Measurement precision
If the top shelf structure is modified to improve code visibility, then code detection is enhanced, but the device complexity increases
Solution Approach 1:
The patent combines the optical code directly with the front panel of the top shelf structure, integrating the detection element into the existing structural component. This merging approach avoids adding separate, complex detection mechanisms while still achieving improved code visibility, as the code is embedded in a surface that is already part of the shelf assembly.
Solution Approach 2:
The front panel of the top shelf structure serves multiple functions: it provides structural support for the shelf, defines the visual boundary of the storage area, and hosts the optical code for detection. By making the panel multi-functional, the patent avoids adding extra components that would increase complexity, as the same structural element fulfills multiple roles including code display.
Data Source
AI summary
In an optical imaging based Kanban inventory replenishment system, a top shelf structure is configured to enhance the visibility of optical codes on empty bins that are placed on the top shelf of a shelving unit, and a validation apparatus placed on top of the top shelf structure is configured for use in validation procedure that confirms a proper installation and alignment of cameras used in capturing images of the optical codes on the empty bins.