Multi-View Robotic Barcode Scanning for Variable Object Orientation
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Solution Overview
Problem
Existing barcode scanning systems in robotic and sortation systems face limitations in reliably scanning barcodes on objects in various orientations and positions, due to the need for precise alignment and visibility of barcodes.
Innovation Solution
A robotic system equipped with an articulated arm and multiple perception systems positioned to capture views of an object from different angles, allowing for the identification and processing of objects regardless of their orientation or position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If a fixed barcode scanner is used, then the scanning operation is automated, but the barcode must be precisely aligned and visible to the scanner
Solution Approach 1:
The system transitions from a single fixed scanner viewpoint to multiple scanner positions arranged in a circular array, adding spatial dimensionality to the scanning capability. This allows the barcode to be scanned from any angular position around the object, eliminating the need for precise alignment with a single scanner.
Solution Approach 2:
The circular array of scanners creates a universal scanning system that can detect barcodes regardless of their orientation or position on the object. Any scanner in the array can potentially scan the barcode, making the system adaptable to various object configurations without requiring precise positioning.
2Adaptability or versatility
If multiple perception systems are added to scan objects from various angles, then objects in different orientations can be identified, but the system complexity increases
Solution Approach 1:
The scanning system is segmented into multiple independent scanner units distributed around the object in a circular array. Each scanner handles a specific angular sector, and the system divides the scanning task among these segments, allowing comprehensive coverage while maintaining modular simplicity.
Solution Approach 2:
Multiple individual scanner systems are merged into a unified circular array structure that functions as a single integrated perception system. The scanners work cooperatively, with their combined fields of view covering all possible barcode orientations, achieving versatility through consolidation rather than separate systems.
3Measurement precision
If the robotic arm moves the object to multiple perception systems, then identification accuracy improves, but the processing time increases
Solution Approach 1:
The system performs preliminary scanning attempts with the first perception system before moving the object to subsequent scanners. If the barcode is successfully scanned early in the sequence, no further movement or scanning is needed, minimizing processing time while maintaining the option for higher accuracy if needed.
Solution Approach 2:
The system allows the first perception system to serve itself by attempting scans in sequence without requiring active intervention to move the object to subsequent scanners. The robotic arm automatically progresses through the scanner array only when necessary, reducing unnecessary movement time while ensuring identification accuracy when required.
Data Source
AI summary
A robotic system is disclosed that include an articulated arm and a first perception system for inspecting an object, as well as a plurality of additional perception systems, each of which is arranged to be directed toward a common area in which an object may be positioned by the robotic arm such that a plurality of views within the common area may be obtained by the plurality of additional perception systems.