This work presents a concept and implementation for the secure storage and transfer of quality-relevant data of milled workpieces from online-quality assurance processes enabled by real-time simulation models. It utilises Non-Fungible Tokens (NFT) to securely and interoperably store quality data in the form of an Asset Administration Shell (AAS) on a public Ethereum blockchain. Minted by a custom smart contract, the NFTs reference the metadata saved in the Interplanetary File System (IPFS), allowing new data from additional processing steps to be added in a flexible yet secure manner. The concept enables automated traceability throughout the value chain, minimising the need for time-consuming and costly repetitive manual quality checks.

翻译：本研究提出了一种概念与实施方案，用于安全存储和传输铣削工件在基于实时仿真模型的在线质量保证过程中产生的质量相关数据。该方案利用非同质化代币（NFT）将质量数据以资产管理壳（AAS）的形式安全且可互操作地存储在公共以太坊区块链上。通过定制智能合约铸造的NFT引用存储在星际文件系统（IPFS）中的元数据，使得来自附加加工步骤的新数据能够以灵活而安全的方式被添加。该概念实现了全价值链的自动化可追溯性，最大限度地减少了耗时且成本高昂的重复性人工质量检测需求。