ESR7

Patrick Denzler

• Current Position: PhD Candidate TU Wien (Expected Graduation 2022)
• Education:
  • Dipl. Ing. Electronics, MBA, M.Sc. Production Systems
• Research Interests:
  • Distributed Systems, Control Theory
  • Emergent System Behaviour
  • Machine Interoperability
  • Philosophy of Science

Research project status:

Ongoing

PhD Student

patrick.denzler@tuwien.ac.at

LinkedIn

Research activities:

• Machine interoperability: OPC UA/DDS Gateway
• Worst Case Execution Time analysis OPC UA Pub/Sub on the T-CREST platform.
• Detection of unexpected emergent system behaviour.

Host: Vienna University of Technology (TUWIEN), Institute of Computer Aided Automation.

• Main supervisor: Prof. Wolfgang Kastner, k@auto.tuwien.ac.at (contact person)
• Co-supervisor: Prof. Gerhard Fohler, fohler@eit.uni-kl.de

Results (OPC UA/DDS Gateway):

• Definition of an architecture, technology stack, and the mappings necessary to support the exchange of information and functionality between data-centric DDS and object-oriented OPC UA systems. (Finished)
• Design and implementation of a vendor-neutral and standard bidirectional gateway for information exchange and interoperability between DDS and OPC UA. (Finished)
• All results are available under: https://git.auto.tuwien.ac.at/fora
• Relevant publications: [1], [2], [5], [6].

Results (OPC UA PubSub Realtime:):

• Worst Case Execution Time analysis OPC UA Pub/Sub on the T-CREST platform. (Finished)
• All results are available under: https://github.com/t-crest/rt-ua
• Relevant publications: [3], [4].

PhD Topic (Emergent behaviour)

The aim of the PhD topic is to research and identify emergent behaviour in highly distributed systems such as fog environments. (Ongoing)

Visits and collaboration:

• OPC UA PubSub Realtime: Collaboration with DTU based on the T-CREST platform.

Relevant publications:

• [1] P. Denzler, D. Scheuchenstuhl, D. Ramsauer, and W. Kastner, “Modeling protocol gateways for cyber-physical systems using Architecture Analysis & Design Language (AADL)” in CIRP CMS 2021 – 54th CIRP Conference on Manufacturing Systems, 2021, vol.1, 2021, pp. xx-xx
• [2] P. Denzler, D. Ramsauer, T. Preindl, and W. Kastner, “Communication and container reconfiguration for cyber-physical production systems”, in 2021 26th IEEE International Conference on Emerging Technologies and Factory Automation (ETFA), vol.1, 2021, pp. xx-xx.
• [3] P. Denzler, T. Frühwirth, A. Kirchberger, M. Schoeberl, and W. Kastner, “Static Timing Analysis of OPC UA PubSub”, in 2021 17th IEEE International Conference on Factory Communication Systems (WFCS), vol.1, 2021, pp. 167 – 174.
• [4] P. Denzler, T. Frühwirth, A. Kirchberger, M. Schoeberl and W. Kastner: “Experiences from Adjusting Industrial Software for Worst-Case Execution Time Analysis”, in 2021 IEEE 24th International Symposium on Real-Time Distributed Computing (ISORC), vol.1, 2021, pp. 62 – 70.
• [5] P. Denzler, D. Ramsauer and  W. Kastner, “Tunnelling and Mirroring Operational Technology Data with IP-based Middlewares”, in 2021 22nd IEEE International Conference on Industrial Technology (ICIT), vol.1, 2021, pp. 1205-1210.
• [6] P. Denzler, D. Ramsauer, and W. Kastner, “Model-driven Engineering of Gateways for Industrial Automation”, in Automation, Robotics & Communications for Industry 4.0, vol.1, 2021, pp. 47 – 50.
• [7] P. Denzler, J. Ruh, M. Kadar, C. Avasalcai, and W. Kastner, “Towards Consolidating Industrial Use Cases on a Common Fog Computing Platform,” in 2020 25th IEEE International Conference on Emerging Technologies and Factory Automation (ETFA), vol. 1, 2020, pp. 172– 179. [1]