Weld Monitoring via Tool and Operator Position Tracking

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Solution Overview

Problem

Conventional weld monitoring systems rely on operator input, which can be inconsistent due to operator forgetfulness or preoccupation, leading to ineffective monitoring of welding operations.

Innovation Solution

The implementation of a weld monitoring system that automatically tracks the position and orientation of both operators and welding tools, using sensors such as cameras, GPS, and RFID, to identify jobs, parts, and activities without requiring manual input.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If operator input is used for monitoring welding operations, then the monitoring system can capture operational details, but the reliability of monitoring data deteriorates due to operator forgetfulness and preoccupation

Engineering Contradiction:
Improvemonitoring data completenessVSAvoidmonitoring data reliability
Core Design Contradiction:
Loss of informationVSReliability

Solution Approach 1:

The monitoring system automatically tracks tool and operator position without requiring operator input. Sensors and tracking devices enable the system to self-monitor welding operations, eliminating reliance on human operators to manually report their activities.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

Manual operator reporting is replaced with automated electronic tracking systems. The patent uses sensors, GPS, RFID, and camera systems to automatically capture and transmit monitoring data, substituting human input with mechanical/electronic monitoring mechanisms.

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

2Reliability

If automated tracking systems are implemented to monitor welding operations continuously, then monitoring reliability improves, but device complexity increases due to multiple sensors and tracking components

Engineering Contradiction:
Improvemonitoring continuityVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The tracking system serves multiple functions simultaneously: it tracks operator position, monitors tool location, records welding parameters, and provides real-time monitoring. By making the system multi-functional, the patent reduces the need for separate dedicated devices for each monitoring task.

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

Solution Approach 2:

The patent introduces a central controller that acts as an intermediary, receiving data from multiple sensors and tracking devices and processing this information centrally. This mediator approach simplifies the overall system architecture by consolidating data processing in one location rather than requiring complex distributed processing.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP4570411A1Weld monitoring systems with tool and operator position tracking
Publication Date: 2025.06.18 ILLINOIS TOOL WORKS INC
  • EP4570411A1 patent drawingFigure 1
  • EP4570411A1 patent drawingFigure 2a
  • EP4570411A1 patent drawingFigure 2b

AI summary

In some examples, weld monitoring systems may automatically identify a job, part, and/or activity in which an operator and/or tool is involved based on a tracked position and/or orientation of the operator and/or tool. The monitoring and/or recording of job, part, and/or activity information for each operator and/or tool may facilitate productivity, quality assurance, and/or maintenance analysis, as well as future planning. The automatic identification of the job, part, and/or activity in which the operator and/or tool is involved also ensures that that the weld monitoring system can still monitor effectively even if operators neglect to provide input regarding their activities.