Distributed Additive Manufacturing With Encrypted Build Packets
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Solution Overview
Problem
Existing manufacturing systems face challenges in coordinating and verifying complex workflows across distributed supply chains, particularly in additive manufacturing, where ensuring product quality, intellectual property rights, and sustainability is crucial.
Innovation Solution
A system utilizing a blockchain-based secure, distributed transaction ledger to facilitate end-to-end verification of workflow processes. This system generates an encrypted, secure identifier for each product, updates the blockchain with verification data, and manages discrete packets of operational parameters for additive manufacturing, ensuring secure, controlled, and verified manufacturing processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If discrete packets of operational parameters are sent sequentially with confirmation of completion and deletion, then security and intellectual property protection are improved, but manufacturing time and process complexity increase
Solution Approach 1:
The operational parameters are divided into discrete packets that are sent sequentially to the additive manufacturing device. Each packet contains a portion of the manufacturing instructions and is transmitted only after confirmation that the previous packet has been completed and deleted, ensuring security while enabling distributed manufacturing
Solution Approach 2:
The system pre-establishes a blockchain ledger and encrypts the operational parameters before manufacturing begins. This preliminary setup enables secure, sequential transmission of parameter packets without requiring real-time coordination during the actual manufacturing process
2Reliability
If blockchain is updated to associate approval and operational parameters with encrypted identifiers, then transparency and accountability are improved, but system complexity and computational requirements increase
Solution Approach 1:
The system creates digital copies of operational parameters and stores them on a blockchain ledger in encrypted form. These digital copies serve as verifiable records of manufacturing instructions without requiring the physical presence of the original unencrypted data, enabling transparency through cryptographic verification
Solution Approach 2:
The blockchain ledger acts as an intermediary between the operational parameters and the additive manufacturing device. It stores encrypted parameter packets and provides a transparent, immutable record of manufacturing activities without directly controlling the manufacturing process, thus reducing system complexity
3Manufacturing precision
If multiple entities coordinate manufacturing with certification and quality standards, then product quality is improved, but coordination overhead and recordkeeping requirements increase
Solution Approach 1:
The system implements automated feedback mechanisms where the blockchain ledger records and verifies each manufacturing step against predefined quality standards. This automated feedback loop ensures product quality without requiring manual coordination and recordkeeping by multiple entities
Solution Approach 2:
The additive manufacturing device and blockchain system automatically verify and record manufacturing compliance with quality standards. This self-service capability eliminates the need for external certification bodies and manual quality assurance processes, reducing coordination overhead while maintaining high product quality
Data Source
AI summary
Methods may involve sending identification of a product to an additive manufacturer. Confirmation from the additive manufacturer of availability may be received. Approval of a respective additive manufacturer may be confirmed. Discrete packets of operational parameters to enable an additive manufacturing device to manufacture respective portions of the product may be generated. Respective packets of operational parameters may be encrypted and sent to a network-connected additive manufacturing device. The respective packets may be sent only after confirmation that a previous packet is complete and has been deleted. A time from completion of the previous packet may be sufficient to ensure that manufacturing of another portion of the product may begin without interruption in an additive manufacturing process. During at least some stages, a blockchain may be updated to associate data representative of workflows for the product with an encrypted, secure identifier utilizing a secure, distributed transaction ledger.