Welding Helmet Ghost Tool Reset for Accurate Weld Training
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The welding industry faces a shortage of skilled operators, and conventional training methods require live instruction from experienced operators, limiting the effectiveness of training systems.
Innovation Solution
A weld training system with resettable target tool images displayed on a welding helmet, using sensor data to adjust the position and orientation of virtual 'ghost' images of welding tools to guide trainees, ensuring proper technique and preventing overcompensation by resetting the images when they become too distant from the actual tool.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional training methods use live instruction from experienced operators, then trainees receive personalized guidance, but the shortage of skilled operators worsens
Solution Approach 1:
The system creates a virtual copy of the welding tool that displays on the helmet's display screen, showing the ideal tool position and orientation. This virtual replica allows trainees to learn from experienced operators' techniques without requiring the operators to be physically present, resolving the contradiction between training quality and operator availability.
Solution Approach 2:
The helmet-mounted display system acts as an intermediary between the trainee and the training content. It provides real-time visual feedback about tool position and orientation, mediating the learning process and enabling self-instruction while maintaining training quality equivalent to live guidance.
2Measurement precision
If the target tool image is displayed far from the actual welding tool, then the trainee can see the target position clearly, but the trainee may overcompensate and deviate from the correct path
Solution Approach 1:
The system continuously monitors the actual welding tool position via sensors and compares it with the target position displayed on the helmet screen. When the trainee deviates from the correct path, the system provides real-time feedback by adjusting the virtual tool image position, preventing overcompensation and maintaining weld quality while keeping the target visible.
Solution Approach 2:
The target tool image dynamically adjusts its position and orientation to match the actual welding tool's movement. This dynamic adjustment ensures the target remains clearly visible to the trainee while preventing excessive distance that could lead to overcompensation, thereby maintaining both visibility and precision.
3Speed
If the target tool image moves quickly ahead of the actual tool, then the training progresses faster, but the trainee cannot keep up and loses accuracy
Solution Approach 1:
The system uses periodic updates of the virtual tool image position based on sensor data from the actual welding tool. This periodic synchronization allows the training to progress at an appropriate pace, updating the target position frequently enough to maintain accuracy but not so quickly that the trainee cannot keep up.
Data Source
AI summary
Described herein are examples of weld training systems that show (e.g., transparent and/or translucent) “ghost” images of a welding tool on a display screen of a welding headgear to indicate target positions and/or target orientations of an actual welding tool. In some examples, the weld training systems may additionally “reset” the target tool image to a position closer to the actual welding tool if the target tool image gets too far away. The ability to “reset” the target tool image to a position closer to the actual welding tool may help in minimizing a risk that an operator 106 will overcompensate to try to catch up with the target tool image, which can be detrimental to the weld. Additionally, resetting the target tool image to a position closer the welding tool may allow an operator to better perceive and/or understand differences in orientation and/or other technique parameters.