Wireless Control Prioritization for Welding Power Supplies

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Solution Overview

Problem

Welding operators face inefficiencies due to the need to frequently return to welding power supply units to adjust settings, as conventional control methods require physical proximity, limiting remote operation and increasing workflow disruptions.

Innovation Solution

Implementing wireless remote control devices, such as smartphones or tablets, to control and monitor welding power supply units from a distance, enabling remote operation, parameter adjustments, and status display through secure wireless communication networks, ensuring only one control method is active at a time.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If conventional control methods via control panel are used, then control reliability is ensured, but operator mobility is limited and workflow efficiency deteriorates

Engineering Contradiction:
Improveworkflow efficiencyVSAvoidoperator mobility
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

A wireless communication system acts as an intermediary between the control panel and the operator's portable device. The system includes a wireless transceiver in the control panel that communicates with a mobile device via wireless signals, allowing operators to control welding parameters remotely without physically approaching the control panel, thus maintaining control reliability while improving mobility and workflow efficiency

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If wireless remote control is implemented, then operator mobility and productivity are improved, but control system complexity increases

Engineering Contradiction:
Improveworkflow efficiencyVSAvoidcontrol system complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The control panel is designed with multi-functionality, serving both as a local control interface and as a wireless communication node. The wireless transceiver integrates communication functions into the existing control panel structure, allowing the same device to handle both wired and wireless control operations, thereby reducing overall system complexity while enabling remote control capabilities

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

3Object-affected harmful factors

If wireless remote control is implemented, then operator safety is improved, but control signal interference may occur

Engineering Contradiction:
Improveoperator safetyVSAvoidcontrol signal reliability
Core Design Contradiction:
Object-affected harmful factorsVSReliability

Solution Approach 1:

The wireless communication system implements feedback mechanisms where the control panel receives confirmation signals from the welding power supply to verify that control commands were successfully transmitted and executed. This feedback loop ensures signal reliability by detecting transmission failures and allowing for retransmission, maintaining control reliability while enabling safe remote operation

Inventive Principle:
Principle #23Feedback

Data Source

PatentEP3122504B1Systems and methods for prioritization of wireless control of a welding power supply
Publication Date: 2020.04.22 ILLINOIS TOOL WORKS INC
  • EP3122504B1 patent drawingFigure 1
  • EP3122504B1 patent drawingFigure 2
  • EP3122504B1 patent drawingFigure 3

AI summary

Embodiments described herein include wireless control of a welding power supply via portable electronic devices. In particular, operating parameters and statuses of the welding power supply may be modified by the portable electronic device, as well as be displayed on the portable electronic device. For example, in certain embodiments, the welding power supply may be an engine-driven welding power supply, and the portable electronic device may be configured to start and/or stop an engine of the engine-driven welding power supply. A pairing procedure may be used to pair the welding power supply and the portable electronic device in a wireless communication network. Furthermore, in certain embodiments, a method of prioritization of control between a control panel of the welding power supply and the portable electronic device may be implemented.