Department 8.5 Metrological Information Technology, Physikalisch-Technische Bundesanstalt (PTB), Abbestrasse 2-12, 10587 Berlin, Germany.
Division of Metrology in Information Technologies and Telecommunications, Brazilian National Institute of Metrology, Quality, and Technology (Inmetro), Av. Nossa Sra. Das Graças 50, Duque de Caxias, Rio de Janeiro 25250-020, Brazil.
Sensors (Basel). 2021 Feb 24;21(5):1564. doi: 10.3390/s21051564.
The growing demand for solutions related to measurement (e.g., digital sensors, smart meters, distributed measuring systems) imposes several concerns about information and process reliability. In this context, blockchain can play a crucial role as a platform to implement applications and activities in the context of legal metrology. In most countries, the National Metrology Institutes (NMIs) are responsible for promoting these initiatives. Thus, in this paper, we present a functional architecture to integrate NMIs in a collaborative blockchain network. We discuss the main aspects and features that an inter-NMI blockchain network must deliver. Furthermore, we implement our proposal using the Hyperledger Fabric platform. We connect peers from Physikalisch-Technische Bundesanstalt (PTB) (German NMI) and the National Institute of Metrology, Quality, and Technology (Inmetro) (Brazilian NMI) in a useful application that consists of a blockchain-based public-key infrastructure to identify and authenticate smart meters. Our preliminary results demonstrate that the proposed architecture meets the main requirements imposed by applications involving measurements. Furthermore, it opens the opportunity to integrate NMIs from other countries into the project, constituting an important global initiative in the metrology field.
对与测量相关的解决方案（例如数字传感器、智能电表、分布式测量系统）的需求不断增长，这引发了人们对信息和流程可靠性的关注。在这种情况下，区块链可以作为一个平台发挥关键作用，用于在法制计量的背景下实施应用和活动。在大多数国家，国家计量院（NMIs）负责推动这些举措。因此，在本文中，我们提出了一种功能架构，用于将 NMIs 集成到协作区块链网络中。我们讨论了跨 NMI 区块链网络必须提供的主要方面和功能。此外，我们使用 Hyperledger Fabric 平台实现了我们的提案。我们将德国国家计量院（PTB）和巴西国家计量、标准化和质量技术研究所（Inmetro）的对等节点连接起来，实现了一个基于区块链的公钥基础设施的实用应用，用于识别和验证智能电表。我们的初步结果表明，所提出的架构满足了涉及测量的应用程序所施加的主要要求。此外，它为将来自其他国家的 NMIs 纳入该项目提供了机会，这是计量领域的一项重要全球倡议。
