Welding Camera Exposure and Marker Illumination During Live-Arc Training

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Solution Overview

Problem

Welding training systems are often expensive and inadequate in training operators to perform high-quality welds, leading to limited availability and effectiveness in preparing operators for manual welding operations.

Innovation Solution

A welding system that includes a welding torch with integrated sensing devices and software for monitoring and managing welding data, providing real-time feedback, and utilizing augmented and virtual reality training modes to enhance operator skills, along with a calibration tool for precise wire stickout adjustment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If traditional welding training systems are used, then operators can be trained in welding operations, but the systems are expensive and inadequate in training operators to perform high-quality welds

Engineering Contradiction:
Improvequality of weldsVSAvoidcost and adequacy of training system
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent uses visual markers and camera systems to create a digital representation of the welding environment, allowing operators to practice in a virtual or augmented reality setting that replicates real welding conditions without requiring expensive physical training equipment. The system captures images of the welding area and processes them to provide training feedback

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The patent replaces traditional mechanical welding training equipment with an optical and computational system. Instead of using physical training rigs and manual measurement tools, the system uses cameras, visual markers, and image processing algorithms to monitor and evaluate welding operations, substituting mechanical measurement with optical detection and digital analysis

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If welding flash protection is provided with delay, then lens darkening can be synchronized with welding flash, but the inherent fraction of a second delay between flash and lens darkening cannot be eliminated

Engineering Contradiction:
Improvesynchronization of lens darkening with welding flashVSAvoiddelay between flash and lens darkening
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The system activates the lens darkening before the welding flash occurs by detecting the approach of the welding arc and pre-darkening the lens. This preliminary action ensures that when the flash occurs, the lens is already in the darkened state, eliminating the harmful delay and protecting the operator's vision immediately

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system uses sensors to detect welding parameters and provides real-time feedback to control the lens darkening. By continuously monitoring the welding environment and responding to changes in arc conditions, the system dynamically adjusts the lens darkness to maintain proper synchronization without fixed delays

Inventive Principle:
Principle #23Feedback

3Productivity

If welding data is monitored and managed in real-time, then operator skills can be improved through feedback, but the system complexity and cost increase

Engineering Contradiction:
Improveefficiency of training processVSAvoidsystem complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The welding system is designed to perform multiple functions using a single integrated platform. The same camera system and image processing infrastructure used for training also provides real-time monitoring, quality assessment, and data collection. This multi-functionality reduces overall system complexity by avoiding duplicate equipment for different purposes

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system automatically processes welding images and extracts training data without requiring manual intervention. The image processing algorithms automatically identify welding features, measure parameters, and generate feedback reports, allowing the system to serve itself in data collection and analysis rather than requiring separate manual measurement and recording processes

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP3215307B1System and method of controlling welding system camera exposure and marker illumination
Publication Date: 2023.03.15 ILLINOIS TOOL WORKS INC
  • EP3215307B1 patent drawingFigure 1
  • EP3215307B1 patent drawingFigure 2
  • EP3215307B1 patent drawingFigure 2A~3

AI summary

A system includes one or more sets of reflective visual markers, a light source configured to emit light, and a controller communicatively coupled to the light source. Each set of reflective visual markers is coupled to a component of a welding system. Each reflective visual marker is configured to reflect the emitted light received from the light source towards one or more cameras. The controller is configured to control illumination settings of the light source based at least in part on a status of the welding system being utilized to perform a live-arc welding operation.