Frequency-Selectable Transmitter for Welding Interference Reduction
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Solution Overview
Problem
The manufacturing industry faces a shortage of skilled welders and lacks practical tools to efficiently track and characterize manual welding performance, which is essential for effective training and quality control, particularly due to interference issues with existing electromagnetic tracking systems.
Innovation Solution
A system utilizing a multiple frequency electromagnetic tracking system with a selectable transmitter and receivers, capable of broadcasting unique frequencies to multiple sensors, reducing interference and enabling real-time monitoring and feedback during welding processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single frequency electromagnetic tracking system is used, then the device complexity is reduced, but interference occurs and tracking reliability deteriorates
Solution Approach 1:
The system changes the frequency parameter of electromagnetic transmissions to resolve interference issues. Multiple selectable frequencies allow the system to switch between different operational frequencies, enabling reliable tracking in various electromagnetic environments without increasing overall system complexity
Solution Approach 2:
The transmitter is designed with dynamic frequency selection capability, allowing it to adaptively switch between different frequencies based on environmental conditions. This dynamic parameter adjustment maintains tracking reliability while keeping the physical system structure relatively simple
2Reliability
If multiple dedicated transmitters are used for each receiver, then tracking reliability is improved, but device complexity and cost increase
Solution Approach 1:
A single electromagnetic transmitter is designed to perform multiple functions by transmitting at different frequencies. This universal transmitter can serve multiple receivers simultaneously through frequency division, eliminating the need for dedicated transmitters for each receiver while maintaining tracking reliability
Solution Approach 2:
The system introduces frequency as an additional dimension for signal separation. Instead of using separate physical transmitters for each receiver, the system uses frequency differentiation to allow one transmitter to communicate with multiple receivers, effectively adding a spectral dimension to the tracking system
3Productivity
If electromagnetic tracking is used in welding environments, then real-time monitoring capability is improved, but interference from welding operations reduces measurement precision
Solution Approach 1:
The system uses frequency parameter changes to overcome welding-induced electromagnetic interference. By selecting frequencies that are less susceptible to welding interference or by switching frequencies dynamically, the system maintains measurement precision while enabling real-time monitoring in welding environments
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
This system allows for accurate tracking and characterization of welding techniques, reducing training time and costs, ensuring compliance with industry standards, and identifying areas for improvement in welder performance, thereby addressing the shortage of skilled welders and enhancing quality control.
Implementation Method 1
a selectable multiple frequency transmitter and one or more multiple frequency receivers in an electromagnetic tracking system
Data Source
AI summary
A system for and method of tracking elements of a welding system using electromagnetic sensors and an electromagnetic transmitter, the electromagnetic sensors and an electromagnetic transmitter operating at a frequency group that is selected to reduce or avoid interference from other welding systems, such selection being performed manually by a user or automatically as the result of detection of interference at the sensors.