Helmet Weld Tracking Calibration for Tool and Head Motion Separation
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Solution Overview
Problem
Conventional weld tracking systems lack a portable and compact solution for accurately tracking welding operations, leading to inefficiencies in quality assurance and operator training due to their fixed nature and limited ability to differentiate between helmet and tool movements.
Innovation Solution
A helmet-based weld tracking system that includes sensors to track its own position and orientation relative to a reference point, as well as the position and orientation of a welding tool or arc, allowing for differentiation between helmet and tool movements, and providing corrective feedback or adjusting welding parameters as needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional fixed weld tracking systems are used, then welding operations can be tracked, but the systems lack portability and cannot differentiate between helmet and tool movements
Solution Approach 1:
The system divides the tracking function into two separate sensor systems: a helmet sensor system that tracks helmet position and orientation, and a tool sensor system that tracks tool position and orientation. This segmentation allows the system to differentiate between helmet movements and tool movements, enabling accurate weld tracking while improving portability through wearable sensors.
2Ease of operation
If helmet-based sensors are used, then portability and compactness are improved, but calibration complexity increases due to the need to determine vector relationships between multiple sensor systems
Solution Approach 1:
The system performs preliminary calibration by determining the vector relationship between the helmet sensor system and tool sensor system before actual welding operations. This preliminary action establishes a reference frame that simplifies subsequent tracking operations, allowing the system to accurately differentiate between helmet and tool movements without increasing operational complexity during welding.
3Measurement precision
If multiple sensor systems are integrated in the helmet, then tracking capability is improved, but device complexity and calibration difficulty increase
Solution Approach 1:
The system introduces a reference point as an intermediary between the helmet sensor system and the tool sensor system. By tracking positions relative to this common reference point, the system simplifies the integration of multiple sensor systems and reduces calibration complexity, while maintaining the ability to accurately track both helmet and tool movements.
Data Source
AI summary
Described herein are examples of weld tracking systems implemented via a welding helmet. The welding helmet includes weld tracking sensors configured to allow the welding helmet to track a welding-type tool and/or an arc generated by the welding-type tool. The welding helmet also includes helmet tracking sensors configured to allow the welding helmet to track its own position and/or orientation relative to a reference point in the welding environment. By tracking itself as well as the welding-type tool and/or arc, the welding helmet can differentiate between its own movement, and movement of the welding-type tool and/or arc. By knowing the spatial relationship between the different sensors of the welding helmet, the tracking information can be combined and used for weld tracking. By implementing the weld tracking system in the welding helmet, the weld tracking system becomes portable and usable outside of the usual fixed confines of weld tracking systems.