Torch Trigger-Line Communication for Welding Parameter Updates
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current welding and cutting systems lack integrated communication capabilities between the torch and power supply/wire feeder, limiting the ability to send commands and information between the user interface and the system, and do not efficiently utilize the existing trigger wires for both power and data transmission.
Innovation Solution
The method and apparatus utilize the existing communication wires in the torch cable to transmit both power and data, including a DC signal and a modulated carrier signal, to enable a human-machine interface (HMI) on the torch, allowing for bidirectional communication and parameter updates without requiring new pins or wires, by monitoring different types of power trigger signals and delivering welding or cutting power accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing trigger wires are used only for power signaling, then system reliability is maintained, but communication functionality and user interaction capabilities are limited
Solution Approach 1:
The existing trigger wires are made multi-functional by enabling them to carry both traditional power trigger signals and digital data communication signals. The system detects different signal types (power trigger vs. data communication) on the same wire infrastructure, allowing a single wire to serve multiple purposes without increasing physical complexity.
Solution Approach 2:
The electrical parameters of the trigger wires are utilized more fully by superimposing data signals on the power signal. The system monitors the electric signal in different states to distinguish between power trigger signals and data communication signals, effectively changing how the wire's electrical characteristics are used rather than adding physical infrastructure.
2Adaptability or versatility
If new pins or wires are added for communication, then communication capability is improved, but device complexity and installation difficulty increase
Solution Approach 1:
The torch cable's existing trigger wires are repurposed to provide both power signaling and data communication functions. This eliminates the need for additional pins or wires, maintaining ease of installation while adding communication capability. The system achieves this by implementing signal detection and processing logic that can distinguish between different signal types on the same physical medium.
Solution Approach 2:
The power signal and data communication signals are merged onto the same trigger wire infrastructure. The system combines these functions by monitoring the electric signal in different states and processing both power trigger commands and data communication simultaneously through the existing wire connections, reducing the need for separate physical channels.
3Productivity
If the electric signal is used for both power and data transmission, then wire utilization efficiency is improved, but signal detection accuracy and reliability may deteriorate
Solution Approach 1:
The system implements feedback mechanisms to monitor the electric signal state and distinguish between power trigger signals and data communication signals. By continuously detecting the signal characteristics and responding appropriately, the system maintains reliable operation even while utilizing the wire for multiple functions. The feedback loop ensures that the system can adapt to different signal types without compromising detection accuracy.
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 solution enhances the functionality of welding systems by enabling a graphical user interface on the torch, allowing for real-time parameter adjustments and error handling, while maintaining compatibility with existing systems without adding new connections, thus improving user interaction and system efficiency.
Implementation Method 1
supply, via communications wires, an electric signal between a welding module and a torch
Implementation Method 2
The carrier signal may be modulated using on-off keying, among other modulation techniques, to send the data
Data Source
AI summary
A method for supporting communication between a torch and a wire feeder or power source. The method includes superimposing a carrier signal on a DC trigger line voltage that is modulated to communicate data between the torch and the wire feeder/power source. The circuitry also supports conventional trigger line functionality.