Wireless Welding Power Supply Control With Paired Remote Access

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Solution Overview

Problem

Welding operators face inefficiencies when controlling welding power supply units from distant locations, requiring a solution for remote control to streamline operations and enhance convenience.

Innovation Solution

Implementing wireless remote control devices, such as portable OEM devices, cellular phones, and tablets, to control and monitor welding power supply units, enabling remote operation, parameter adjustment, and status display, with a pairing procedure and prioritization method to ensure secure and exclusive control.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If welding operators use the control panel disposed on the welding power supply unit, then they can directly control the welding parameters, but they must physically walk back to the power supply unit when working at distant locations

Engineering Contradiction:
Improveremote control capabilityVSAvoidtime to walk back to power supply unit
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The patent introduces a wireless remote control device as an intermediary between the operator and the welding power supply unit. This remote device communicates wirelessly with the power supply unit, allowing operators to control welding parameters from distant locations without physically returning to the power supply unit, thus resolving the contradiction between ease of operation and time loss.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If wireless remote control is implemented, then operators can control welding power supply from remote locations, but control conflicts may occur between multiple control devices

Engineering Contradiction:
Improveremote control accessibilityVSAvoidcontrol conflict resolution
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent implements a pairing procedure that establishes predetermined relationships between wireless remote control devices and the welding power supply unit before actual control operations. This preliminary pairing action creates a trusted control hierarchy, allowing the system to reliably resolve control conflicts by prioritizing paired devices, thus maintaining both remote control accessibility and system reliability.

Inventive Principle:
Principle #10Preliminary action

3Ease of operation

If wireless communication is added to enable remote control, then remote operation is enabled, but device complexity increases

Engineering Contradiction:
Improveremote control functionalityVSAvoidwireless communication system
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent designs the wireless remote control device to serve multiple functions: it acts as both a control interface for adjusting welding parameters and a display device for showing system status and diagnostics. By combining these functions into a single wireless device, the patent reduces overall system complexity compared to having separate wireless control and display systems, while still enabling comprehensive remote operation.

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

Data Source

PatentEP3122506B1Systems and methods for wireless control of a welding power supply
Publication Date: 2021.07.28 ILLINOIS TOOL WORKS INC
  • EP3122506B1 patent drawingFigure 1
  • EP3122506B1 patent drawingFigure 2
  • EP3122506B1 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.