Robotic Multi-View Barcode Identification for Mixed Object Orientations
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Solution Overview
Problem
Existing barcode scanning systems in robotic and industrial applications are limited by the need for precise orientation and positioning of barcodes, which restricts their ability to reliably scan barcodes on objects in dynamic and heterogeneous environments.
Innovation Solution
A robotic system equipped with an articulated arm and multiple perception units that can inspect objects from various angles, allowing for the automated identification and sorting of objects by maneuvering them to optimize barcode visibility and using multiple scanners to capture barcodes from different viewpoints.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If a fixed barcode scanner is used to scan objects on a conveyor, then the scanning process is automated, but the system requires precise control of barcode position and orientation which limits its ability to handle objects in various orientations
Solution Approach 1:
The patent transitions from a single fixed scanner viewpoint to multiple scanners arranged in different spatial positions and orientations. This multi-dimensional arrangement allows the system to scan barcodes on objects regardless of their orientation on the conveyor, resolving the contradiction between automation and adaptability to various orientations.
Solution Approach 2:
The system employs multiple perception systems that can each scan from their specific viewpoints, creating a universal scanning capability that handles diverse object orientations. Each scanner is positioned to cover specific angular ranges, collectively providing universal coverage for objects in any orientation.
2Adaptability or versatility
If multiple perception systems are added to scan objects from various angles, then the system can handle objects in different orientations, but the device complexity increases
Solution Approach 1:
The patent divides the scanning function into multiple specialized perception systems, each responsible for scanning from a specific viewpoint or angular range. This segmentation allows the complex task of scanning all orientations to be distributed across simpler, specialized components, managing overall system complexity through functional division.
3Measurement precision
If the barcode must be precisely oriented toward the scanner for reliable scanning, then the scanning accuracy is high, but the system cannot accommodate objects in dynamic environments with varying orientations
Solution Approach 1:
The patent resolves the orientation constraint by adding spatial dimensions - multiple scanners are positioned at different locations and angles around the conveyor. This multi-viewpoint approach maintains high detection accuracy for each scanner while collectively accommodating objects in any orientation, as each scanner handles objects within its optimal viewing angle.
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.