Dr. Benjamin Montavon Profile

Dr. Benjamin Montavon

at RWTH Aachen Univ

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Author

Publications (3)

Proceedings Article | 15 March 2023 Presentation + Paper

Identifying the advantageous latent space dimensionality for StyleGANs used in industrial machine vision applications

Dominik Wolfschläger, Ruslan Yermakov, Benjamin Montavon, Benjamin Berkels, Robert Schmitt

Proceedings Volume 12438, 124380R (2023) https://doi.org/10.1117/12.2646326

KEYWORDS: Machine vision, Industrial applications, Feature extraction, Data modeling, Machine learning, Image quality, Statistical modeling, Deep learning

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Proceedings Article | 18 April 2022 Presentation + Paper

Condensing measurement data along the process chain into a single geometrical digital shadow

Kilian Geiger, Jonas Großeheide, Benjamin Montavon, Robert Schmitt

Proceedings Volume 12049, 1204905 (2022) https://doi.org/10.1117/12.2609400

KEYWORDS: 3D metrology, Data modeling, Control systems, 3D modeling, Data processing, Data storage, Visualization, Additive manufacturing, Data fusion, 3D optical data storage

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Proceedings Article | 21 June 2019 Paper

Model-based interfacing of large-scale metrology instruments

Benjamin Montavon, Martin Peterek, Robert Schmitt

Proceedings Volume 11059, 110590C (2019) https://doi.org/10.1117/12.2527461

KEYWORDS: Data modeling, Metrology, Instrument modeling, Data communications, Systems modeling, Model-based design, Telecommunications, Internet

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Metrology assisted assembly systems constitute cyber physical production systems relying on in-process sensor data as input to model-based control loops. These range from local, physical control loops, e.g. for robots to closed-loop product lifecycles including quality management. The variety and amount of involved sensors, actors and data sources require a distinct infrastructure to ensure efficient, reliable and secure implementation. Within the paradigm of Internet of Production a reference architecture for such an infrastructure is established by four layers: Raw data (1), provisioning of proprietary systems (2), data aggregation and brokering (3) and decision support (4). In modern metrology assisted assembly systems, a virtual reference frame is constituted by one or multiple predominantly optical Large-Scale Metrology instruments, e.g. laser trackers, indoor GPS or multilateration based on ultra wideband communication. An economically efficient implementation of the reference frame can be achieved using cooperative data fusion, both by increasing the operative volume with existing systems and by optimizing the utilization of highly precise and therefor typically cost-intensive instruments. Herewith a harmonization is required as well from a physical perspective as in terms of communication interfaces to the raw data provided by the individual instruments. The authors propose a model-based approach to obtain a protocol-agnostic interface description, viewing a Large-Scale Metrology instrument as an abstract object oriented system consisting of one or multiple base units and mobile entities. Its object-oriented structure allows a realization of the interface in arbitrary structured communication protocols by adhering to fixed data transformation schemes. This approach is evaluated for MQTT (structured by topics), OPC UA (structured by data model) and HTTP/REST (structured by URLs) as key protocols within the internet of things. Moreover, the transformation between different protocols decouples software requirements of measurement instruments and actors, generally allowing a more efficient integration into cyberphysical production systems.

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