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Publikationen von Professorinnen und Professoren der HAW Hamburg

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Konferenz, Symposium, Vortragsreihe, Einzelausstellung, Modenschau, Künstl. Leitung (als Ausrichter):

Annita Kalpaka
„Wir sind für alle offen“- Herausforderungen an und Perspektiven von Erwachsenenbildung und Qualifizierung in Verhältnissen von Differenz und Dominanz
Einführungsvortrag zur Tagung: „Wege zur Öffnung von Erwachsenenbildungsinstitutionen in der Migrationsgesellschaft“ des Projektes mig2eb, Angehörige der 2. Generation von Migrant_innen als Fachkräfte in der Erwachsenenbildung 24. - 25.4.2014 Universität Graz

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Annita Kalpaka
Mitdiskutantin beim Symposium "Postkoloniale und rassismuskritische Perspektiven auf nationalistisch konfigurierte (Theorie-)Tradierungen in Bildung und Erziehung als Widerstandspraxen" am 10.3.2014 im Rahmen des 24. Kongresses der Deutschen Gesellschaft für Erziehungswissenschaft (DGfE)

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Helge Koch und Dragan Kozulovic
Influence of Geometry Variations on the Boundary Layer Control with a Passively Moving Wall
52nd Aerospace Sciences Meeting, AIAA SciTech, (AIAA 2014-0401), National Harbor, Maryland, USA

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Friedrich Groß, Till Steinbach, Franz Korf, Thomas C. Schmidt und Bernd Schwarz
A Hardware/Software Co-Design Approach for Ethernet Controllers to Support Time-triggered Traffic in the Upcoming IEEE TSN Standards
Proc. of the 4th IEEE Int. Conf. on Consumer Electronics - Berlin aus ICCE-Berlin'14 , Seite 9--13.
Verlag: IEEE Press, Piscataway, NJ, USA

Marker: TI-I

Zusammenfassung: Due to the increasing bandwidth and timing requirements, next generation communication backbones in cars will most likely base on real-time Ethernet variants that satisfy the demands of the new automotive applications. The upcoming IEEE 802.1Qbv standard shows communication approaches based on coordinated time devision multiple access (TDMA) to be good candidates for providing communication with determinism and highly precise timing. Implementing time-triggered architectures in software requires significant development effort and computational power. This paper shows a scalable HW/SW co-design approach for new real-time Ethernet controllers based on the partitioning into communication and application components. The tasks required for communication are divided: Time-critical and computationally intensive parts are realised in dedicated hardware modules allowing the attached CPU to fulfil the timing requirements of the automotive application without interference. The evaluation using a Field Programmable Gate Array (FPGA) based prototype implementation shows that the precision for the time-triggered transmission and the performance of the proposed implementation of the required synchronisation protocols satisfies the requirements of applications in the automotive domain.

Jan Kamieth, Till Steinbach, Franz Korf und Thomas C. Schmidt
Design of TDMA-based In-Car Networks: Applying Multiprocessor Scheduling Strategies on Time-triggered Switched Ethernet Communication
Proc. of the 19th IEEE International Conference on Emerging Technologies and Factory Automation aus ETFA 2014
Verlag: IEEE Press, Piscataway, NJ, USA

Marker: TI-I

Zusammenfassung: Real-time Ethernet variants gain importance for communication infrastructure of various time-critical domains, such as in-car networks. Synchronous time-triggered traffic guarantees strict timing but requires a detailed schedule for all participants. Designing these schedules by hand is extensive work and with increasing network size almost impossible. In this paper, we contribute a mapping of the time-triggered network scheduling problem into the domain of multiprocessor scheduling. This set of transformation rules allows us to apply established scheduling algorithms as well as new strategies to organise time-triggered switched networks. Experimental results from a prototype implementation of a scheduling framework based on this mapping show the feasibility of our concept. The framework demonstrates a multiple solver approach that uses algorithms with different optimality criteria in parallel.

Florian Bartols, Till Steinbach, Franz Korf, Bettina Buth und Thomas C. Schmidt
Real-time Ethernet Residual Bus Simulation: A Model-Based Testing Approach for the Next-Generation In-Car Network
22nd International Conference on Real-Time Networks and Systems (RTNS) 2014
Verlag: ACM-DL, New York

Marker: TI-I

Zusammenfassung: The increasing complexity of automotive networks, their challenging timing constraints and their high bandwidth demands require new concepts for future in-car communication. Real-time Ethernet is meant to be a suitable candidate for the next-generation in-car interconnection. However, model-based testing capabilities must be available as well. Applications must be validated prior the first assembly, due to the distributed development process. Methods like residual bus simulation are of particular interest to allow for testing systems in early development stages by emulating unfinished or not available parts of the system. In this paper, we present a methodology and a feasibility study of a residual bus simulation in automotive real-time Ethernet systems. The challenges of applying this testing method in real-time Ethernet based networks with parallel packet transmission are outlined and compared to today's automotive bus system simulation approaches. Furthermore, the combination of different model-based testing techniques, that are not used in state-of-the-art commercial tools, are applied for the validation of non-functional timing requirements. An extension to an existing abstract test case model is proposed, which allows modelling temporal attributes. It is simultaneously used as simulation model to drive the residual bus simulation. We demonstrate the approach's feasibility by implementing a prototype residual bus simulator for real-time Ethernet networks and applying it to an example application.

Soeren Rumpf, Till Steinbach, Franz Korf und Thomas C. Schmidt
Software Stacks for Mixed-critical Applications: Consolidating IEEE 802.1 AVB and Time-triggered Ethernet in Next-generation Automotive Electronics
Proc. of the 4th IEEE Int. Conf. on Consumer Electronics - Berlin aus ICCE-Berlin'14 , Seite 14--18.
Verlag: IEEE Press, Piscataway, NJ, USA
ISBN: 978-1-4799-6165-8

Marker: TI-I

Zusammenfassung: Real-time Ethernet variants are expected to build the future communication infrastructure in cars. First camera based driver assistance functions will communicate using IEEE 802.1 AVBs credit-based shaping. But for the strict timing requirements of automotive control-traffic, AVBs current timing guarantees are insufficient. The upcoming IEEE 802.1Qbv standard proposes synchronous time-triggered traffic to overcome these limitations. This paper presents a low footprint microcontroller based communication architecture, that supports both traffic classes in parallel while using standard hardware components. It allows first realistic performance analyses of coexistent traffic shaping strategies in a software based implementation.

T. Taefi, J. Kreutzfeldt, T. Held und A. Fink.
Comparative Analysis of European examples of Freight Electric Vehicles Schemes. A systematic case study approach with examples from Denmark, Germany, The Netherlands, Sweden and the UK
4th International Conference on Dynamics in Logistics
10.-14. February 2014
Proceedings of the 4th International Conference on Dynamics in Logistics

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Christine Krüger

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G. Pangalos, K. Kruppa und G. Lichtenberg
Entwicklung der Methoden zur Einregulierung, Modellbildung und Reglerparametrisierung
Abschlussbericht ModQS
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Letzte Änderung: 23.01.15

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