Encrypted Torch Authentication for Genuine-Part Power Enable
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Solution Overview
Problem
Welding and cutting systems face challenges in preventing the use of unintended or non-genuine parts, which can lead to operational inefficiencies and safety issues due to the need for different components to have specific settings and power adjustments.
Innovation Solution
Implementing an authentication system where the welding/cutting power supply requires and confirms an authentication message from the torch and its consumable components before delivering power, using encryption and decryption processes to ensure only genuine parts are used, and employing imaging devices to automatically recognize and verify the authenticity of interchangeable components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If authentication and encryption systems are implemented to verify genuine parts, then reliability and safety are improved, but device complexity increases
Solution Approach 1:
The patent implements preliminary authentication by embedding unique identifiers in genuine parts during manufacturing and pre-configuring the system to verify these identifiers before operation. The authentication process is automatically initiated when components are installed, checking cryptographic signatures or unique codes before allowing system activation. This preliminary verification ensures only genuine parts are used without requiring complex real-time monitoring during operation.
Solution Approach 2:
The patent uses cryptographic copying where authentication data is replicated across multiple components (torch, consumables, power supply) in encrypted form. Each component contains a copy of authentication credentials that must match during verification. This distributed copying approach simplifies the system architecture compared to centralized authentication, as each component independently verifies the others using pre-shared cryptographic keys or protocols.
2Manufacturing precision
If manual identification and adjustment of components are required, then manufacturing precision is maintained, but productivity decreases
Solution Approach 1:
The patent implements self-service authentication where the system automatically identifies installed components, retrieves their unique identifiers, and performs verification without operator intervention. The torch and power supply autonomously communicate to authenticate consumables, automatically adjust operational parameters based on component type, and enable or disable functions based on authentication results. This eliminates manual identification and adjustment steps while maintaining precise component settings.
Solution Approach 2:
The patent incorporates feedback loops where the system continuously monitors component authentication status and automatically adjusts operational parameters. When genuine parts are detected, the system receives feedback about component type and automatically configures optimal settings. If non-genuine parts are detected, the system provides feedback to the operator and automatically disables affected functions. This closed-loop feedback maintains manufacturing precision while eliminating manual intervention.
3Object-affected harmful factors
If encryption and decryption processes are implemented for authentication, then security is improved, but use of energy increases
Solution Approach 1:
The patent performs cryptographic operations in advance during component manufacturing and initial system setup. Authentication keys and cryptographic signatures are pre-generated and embedded in genuine parts during manufacturing. The actual encryption/decryption occurs only during brief authentication moments when components are installed or replaced, rather than continuously during operation. This preliminary preparation minimizes real-time energy consumption while maintaining security.
Solution Approach 2:
The patent implements partial cryptographic verification by checking only critical authentication elements rather than full cryptographic validation of all data. The system performs selective decryption and verification of essential authentication tokens rather than comprehensive cryptographic analysis of all component data. This partial action approach provides sufficient security against misuse while significantly reducing the computational energy required compared to full cryptographic processing.
Data Source
AI summary
Apparatus and methods associated with the authentication of a welding or cutting torch with a power supply are provided. According to some implementations, the authentication includes encryption/decryption techniques initiated by the physical or virtual closure of one or more of a trigger switch and a parts-in-place switch. The delivery of high voltage welding or cutting power from the power supply to the torch being enabled only upon a successful authentication of the torch with the power supply.