Communication and validation of metrological smart data in IoT-networks

Abstract

An Internet of Things-network (IoT-network) allows for the communication of data both within the network and to data hubs. However, the usefulness of the data depends on its ability to be interpreted correctly. For metrology data, effective use of the data is only possible if the numerical value, associated unit and uncertainty, expressed in a standard format, are also available. In order to develop, provide and distribute a formal framework for the transmission of metrology data on the basis of the International System of Units, European project EMPIR 17IND02 SmartCom was agreed between the European Commission and the European Association of National Metrology Institutes (Euramet). The SmartCom project aims to provide the methodological and technical foundation for the unambiguous, universal, safe and uniform communication of metrological smart data in the IoT and Industry 4.0. The project will increase the industrial capabilities and the provision of regulations for data exchange in the IoT. It will also assist countries within the European Union (EU) and those with an association agreement with the EU in developing products that are able to communicate in IoT environments worldwide. In addition to describing the general ideas and aims of the project, this article presents the research results achieved in the first midterm period.

Metrological Challenges in Collaborative Sensing: Applicability of Digital Calibration Certificates

“…The EMPIR project SmartCom aims at establishing a basis for a global standard for Digital Calibration Certificates (DCC) and a standardized data model and presentation format for metrological data, Digital SI (D-SI) [ 38 ]. Publications describing the DCC and D-SI have been presented by Hackel et al and Hutzschenreuter et al [ 39 , 40 ].…”

“…Figure 2 shows an example of a quantity element that is used to define data of measurement in the DCC [ 38 ]. The quantity is marked with blue.…”

Validation of SI-based digital data of measurement using the TraCIM system

“…The methodological and technical foundation of the D-SI classification presented here and the respective TraCIM online validation service are outcomes from the joint research project SmartCom in the European Metrology Programme for Innovation and Research (EMPIR) (Bojan et al, 2020). For convenience, we will frequently make use of the term SmartCom validation to denote the D-SI classification with TraCIM.…”

Analysis of Laser Interferometer Measurement Uncertainty by Simulating Error Sources

“…In all cases, an accuracy analysis of the total measurement performance is needed [1]. Furthermore, the measurement systems shall be ready for fully automated integration into advanced manufacturing systems by enabling direct transformation of measurement data including calibration results into global information systems [2].…”