Welding Tool Orientation Feedback With Single-Sensor Calibration
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Solution Overview
Problem
Conventional welding technique monitoring systems struggle to accurately assess and provide feedback on welding technique quality, particularly for less experienced operators, due to difficulties in judging good or bad welding techniques without additional calibration and the need for multiple sensors.
Innovation Solution
A tool-based welding technique monitoring system that uses a sensor module attached to the welding tool to track its orientation and provide real-time feedback on welding technique parameters, such as work angle and travel direction, with minimal calibration requirements and without the need for additional sensors, by determining joint characteristic vectors and electrode orientation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional welding technique monitoring systems use multiple sensors to accurately assess welding technique quality, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent combines multiple sensor functions into a single sensor module attached to the welding tool. The sensor module integrates accelerometer, gyroscope, and magnetometer capabilities to track tool orientation, position, and movement in three-dimensional space, eliminating the need for multiple separate sensors while maintaining measurement precision.
Solution Approach 2:
The sensor module serves multiple functions simultaneously: it tracks tool orientation, monitors welding technique parameters, provides real-time feedback, and calibrates to different welding positions. This multi-functional approach replaces what would traditionally require multiple specialized sensors and systems.
2Measurement precision
If conventional welding technique monitoring systems require additional sensors for accurate monitoring, then measurement precision is improved, but ease of operation deteriorates
Solution Approach 1:
The system performs preliminary calibration by detecting the direction of gravity when the welding tool is held vertically, establishing a reference frame before actual welding begins. This preliminary action enables the system to automatically adapt to different welding positions and orientations without requiring manual calibration during operation.
Solution Approach 2:
The sensor module automatically calibrates itself by using the gravity direction as a reference when the tool is held vertically. The system self-adjusts to different welding positions and orientations without requiring manual intervention or additional calibration procedures, making it easy to operate across various welding scenarios.
3Measurement precision
If conventional welding technique monitoring systems use multiple sensors and calibration procedures, then measurement precision is improved, but loss of time increases
Solution Approach 1:
The system performs a quick preliminary calibration by detecting gravity direction when the welding tool is held vertically for a brief moment. This fast preliminary calibration establishes the reference frame needed for accurate monitoring, minimizing the time investment required before production welding begins.
Solution Approach 2:
The sensor module automatically performs calibration using the gravity reference without requiring manual intervention or extended calibration procedures. The system self-configures for different welding positions and orientations in real-time, eliminating time-consuming manual calibration steps while maintaining measurement precision.
4Measurement precision
If conventional welding technique monitoring systems require extensive calibration and multiple sensors, then measurement precision is improved, but ease of manufacture deteriorates
Solution Approach 1:
The patent integrates multiple sensor capabilities (accelerometer, gyroscope, magnetometer) into a single sensor module that attaches to the welding tool. This consolidation simplifies manufacturing and assembly compared to installing and calibrating multiple separate sensors, while maintaining the ability to track welding parameters with high precision.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system offers an inexpensive, portable, and user-friendly solution for monitoring welding techniques, providing immediate feedback and allowing for quick calibration, thereby improving welding quality without the need for extensive operator training or additional equipment.
Implementation Method 1
uses sensor data of a sensor module attached to, and/or integral with, a welding-type tool to track an orientation of the welding-type tool
Data Source
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AI summary
Described herein are examples of tool based welding technique monitoring systems that provide an inexpensive, intuitive, and relatively robust way of tracking an orientation of a welding-type tool, and providing welding technique feedback based on the orientation. The system requires no sensors apart from a simple and/or relatively inexpensive sensor module that can travel with the welding-type tool, which makes the system highly portable. The system can also provide some feedback with minimal calibration, which can be valuable in situations where an operator forgets, or is unwilling, to take the time to fully calibrate the system. Additionally, full calibration of the system can be accomplished with a fast, simple, intuitive calibration technique.