Visual Control Overlay for High-Speed Extended Product Inspection
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Solution Overview
Problem
Existing visual control systems struggle to efficiently and quickly locate defects in high-speed moving products, requiring operators to manually search for and verify defects after initial automatic inspection, which can lead to inefficiencies and missed artifacts.
Innovation Solution
A visual control system with a second control zone that overlays qualitative information from an automatic inspection unit directly onto the product, allowing operators to view defects interactively and precisely without needing to relocate them, using projection or display technologies for enhanced visibility and interaction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If automatic inspection unit inspects product at high speed, then productivity is improved, but operator's ability to visually locate and verify defects deteriorates
Solution Approach 1:
The system creates a visual copy (map) of the product surface with defect locations, then overlays this map information onto the actual product view. This allows operators to see defect locations directly on the product without manually searching, resolving the contradiction between high-speed automatic inspection and accurate visual verification.
Solution Approach 2:
The overlaying means acts as an intermediary between the automatic inspection unit's map data and the operator's visual inspection. It superimposes qualitative information from the map onto the product view, enabling operators to quickly locate defects without manual searching while maintaining high inspection speeds.
2Measurement precision
If operator manually searches for defects after automatic inspection, then measurement precision is improved, but loss of time increases
Solution Approach 1:
The automatic inspection unit performs preliminary defect detection and creates a map with defect locations before the operator's visual inspection. This preliminary action provides the operator with pre-identified defect locations, eliminating the need for manual searching and significantly reducing verification time while maintaining detection accuracy.
Solution Approach 2:
The system provides feedback to the operator by overlaying defect information from the automatic inspection map onto the product view. This feedback mechanism guides the operator's attention directly to defect locations, enabling quick verification without compromising detection precision.
3Ease of operation
If operator reviews map data on monitor, then ease of operation is improved, but loss of information occurs
Solution Approach 1:
The system merges the map data (qualitative information) with the actual product view by overlaying the map information onto the product. This combination preserves the convenience of automated defect identification while maintaining the spatial context and visual appearance of the actual product, eliminating information loss.
Data Source
AI summary
A visual control system for an extended product being a wire, a tube, a plate, a strip or a series of juxtaposed elements type contains a first measurement zone with an inspection unit for automatically inspecting a portion of the product advancing along a longitudinal path. The inspection unit delivering at least one map having qualitative information of an inspected portion of the product. A second control zone is disposed downstream of the first measurement zone and has a device for overprinting at least the qualitative information on the portion of the product. The second control zone being intended for displaying the portion as it arrives in the second control zone.