--- _id: '10620' author: - first_name: Jahanzeb full_name: Anwer, Jahanzeb last_name: Anwer - first_name: Sebastian full_name: Meisner, Sebastian last_name: Meisner - first_name: Marco full_name: Platzner, Marco id: '398' last_name: Platzner citation: ama: 'Anwer J, Meisner S, Platzner M. Dynamic reliability management: Reconfiguring reliability-levels of hardware designs at runtime. In: Reconfigurable Computing and FPGAs (ReConFig), 2013 International Conference On. ; 2013:1-6. doi:10.1109/ReConFig.2013.6732280' apa: 'Anwer, J., Meisner, S., & Platzner, M. (2013). Dynamic reliability management: Reconfiguring reliability-levels of hardware designs at runtime. In Reconfigurable Computing and FPGAs (ReConFig), 2013 International Conference on (pp. 1–6). https://doi.org/10.1109/ReConFig.2013.6732280' bibtex: '@inproceedings{Anwer_Meisner_Platzner_2013, title={Dynamic reliability management: Reconfiguring reliability-levels of hardware designs at runtime}, DOI={10.1109/ReConFig.2013.6732280}, booktitle={Reconfigurable Computing and FPGAs (ReConFig), 2013 International Conference on}, author={Anwer, Jahanzeb and Meisner, Sebastian and Platzner, Marco}, year={2013}, pages={1–6} }' chicago: 'Anwer, Jahanzeb, Sebastian Meisner, and Marco Platzner. “Dynamic Reliability Management: Reconfiguring Reliability-Levels of Hardware Designs at Runtime.” In Reconfigurable Computing and FPGAs (ReConFig), 2013 International Conference On, 1–6, 2013. https://doi.org/10.1109/ReConFig.2013.6732280.' ieee: 'J. Anwer, S. Meisner, and M. Platzner, “Dynamic reliability management: Reconfiguring reliability-levels of hardware designs at runtime,” in Reconfigurable Computing and FPGAs (ReConFig), 2013 International Conference on, 2013, pp. 1–6.' mla: 'Anwer, Jahanzeb, et al. “Dynamic Reliability Management: Reconfiguring Reliability-Levels of Hardware Designs at Runtime.” Reconfigurable Computing and FPGAs (ReConFig), 2013 International Conference On, 2013, pp. 1–6, doi:10.1109/ReConFig.2013.6732280.' short: 'J. Anwer, S. Meisner, M. Platzner, in: Reconfigurable Computing and FPGAs (ReConFig), 2013 International Conference On, 2013, pp. 1–6.' date_created: 2019-07-10T09:32:57Z date_updated: 2022-01-06T06:50:48Z department: - _id: '78' doi: 10.1109/ReConFig.2013.6732280 keyword: - fault tolerant computing - field programmable gate arrays - logic design - reliability - BYU-LANL tool - DRM tool flow - FPGA based hardware designs - avionic application - device technologies - dynamic reliability management - fault-tolerant operation - hardware designs - reconfiguring reliability levels - space applications - Field programmable gate arrays - Hardware - Redundancy - Reliability engineering - Runtime - Tunneling magnetoresistance language: - iso: eng page: 1-6 publication: Reconfigurable Computing and FPGAs (ReConFig), 2013 International Conference on status: public title: 'Dynamic reliability management: Reconfiguring reliability-levels of hardware designs at runtime' type: conference user_id: '3118' year: '2013' ... --- _id: '36922' abstract: - lang: eng text: In this paper we present an approach for the self reconfiguration of distributed micro-controllers for increased fault tolerance. Based on a modified distributed system topology utilizing a time division multiple access (TDMA) protocol, i.e., Flex Ray, we present a self-organized distributed coordinator concept which performs the self-reconfiguration in the case of node failures. We introduce a distributed coordinator, which utilizes redundant slots in the Flex Ray communication schedule and combines messages in configured protocol frames and slots to avoid a complete bus restart. As such, the self-reconfiguration is realized by means of predetermined information about resulting changes in the communication dependencies and (re-)assignments determined in the design phase. To retrieve the necessary information, we present an analytical approach, which determines a combined solution for the initial configuration and all possible reconfigurations for the remaining nodes of the Flex Ray network in case of node failures. Hence, through this method we can design self-reconfiguring network-based systems enabling the handling of node failures for an increased fault tolerance. author: - first_name: Kay full_name: Klobedanz, Kay last_name: Klobedanz - first_name: Wolfgang full_name: Müller, Wolfgang id: '16243' last_name: Müller - first_name: Achim full_name: Rettberg, Achim last_name: Rettberg citation: ama: 'Klobedanz K, Müller W, Rettberg A. An Approach for Self-Reconfiguring and Fault-Tolerant Distributed Real-Time Systems. In: IEEE; 2012. doi:10.1109/ISORCW.2012.41' apa: Klobedanz, K., Müller, W., & Rettberg, A. (2012). An Approach for Self-Reconfiguring and Fault-Tolerant Distributed Real-Time Systems. IEEE 15th International Symposium on Object/Component/Service-Oriented Real-Time Distributed Computing Workshops. https://doi.org/10.1109/ISORCW.2012.41 bibtex: '@inproceedings{Klobedanz_Müller_Rettberg_2012, place={Shenzhen, China }, title={An Approach for Self-Reconfiguring and Fault-Tolerant Distributed Real-Time Systems}, DOI={10.1109/ISORCW.2012.41}, publisher={IEEE}, author={Klobedanz, Kay and Müller, Wolfgang and Rettberg, Achim}, year={2012} }' chicago: 'Klobedanz, Kay, Wolfgang Müller, and Achim Rettberg. “An Approach for Self-Reconfiguring and Fault-Tolerant Distributed Real-Time Systems.” Shenzhen, China : IEEE, 2012. https://doi.org/10.1109/ISORCW.2012.41.' ieee: 'K. Klobedanz, W. Müller, and A. Rettberg, “An Approach for Self-Reconfiguring and Fault-Tolerant Distributed Real-Time Systems,” presented at the IEEE 15th International Symposium on Object/Component/Service-Oriented Real-Time Distributed Computing Workshops, 2012, doi: 10.1109/ISORCW.2012.41.' mla: Klobedanz, Kay, et al. An Approach for Self-Reconfiguring and Fault-Tolerant Distributed Real-Time Systems. IEEE, 2012, doi:10.1109/ISORCW.2012.41. short: 'K. Klobedanz, W. Müller, A. Rettberg, in: IEEE, Shenzhen, China , 2012.' conference: name: IEEE 15th International Symposium on Object/Component/Service-Oriented Real-Time Distributed Computing Workshops date_created: 2023-01-16T12:23:50Z date_updated: 2023-01-16T12:25:33Z department: - _id: '672' doi: 10.1109/ISORCW.2012.41 keyword: - Real time systems - Fault tolerant systems - Schedules - Protocols - Redundancy - Delay language: - iso: eng place: 'Shenzhen, China ' publication_identifier: eisbn: - 978-0-7695-4669-8 publisher: IEEE status: public title: An Approach for Self-Reconfiguring and Fault-Tolerant Distributed Real-Time Systems type: conference user_id: '5786' year: '2012' ... --- _id: '37006' abstract: - lang: eng text: In this paper we present an approach for the configuration and reconfiguration of FlexRay networks to increase their fault tolerance. To guarantee a correct and deterministic system behavior, the FlexRay specification does not allow a reconfiguration of the schedapproachule during run time. To avoid the necessity of a complete bus restart in case of a node failure, we propose a reconfiguration using redundant slots in the schedule and/or combine messages in existing frames and slots, to compensate node failures and increase robustness. Our approach supports the developer to increase the fault tolerance of the system during the design phase. It is a heuristic, which, additionally to a determined initial configuration, calculates possible reconfigurations for the remaining nodes of the FlexRay network in case of a node failure, to keep the system working properly. An evaluation by means of realistic safety-critical automotive real-time systems revealed that it determines valid reconfigurations for up to 80% of possible individual node failures. In summary, our approach offers major support for the developer of FlexRay networks since the results provide helpful feedback about reconfiguration capabilities. In an iterative design process these information can be used to determine and optimize valid reconfigurations. author: - first_name: Kay full_name: Klobedanz, Kay last_name: Klobedanz - first_name: Andreas full_name: König, Andreas last_name: König - first_name: Wolfgang full_name: Müller, Wolfgang id: '16243' last_name: Müller citation: ama: 'Klobedanz K, König A, Müller W. A Reconfiguration Approach for Faul-Tolerant FlexRay Networks. In: Proceedings of DATE’11. IEEE; 2011. doi:10.1109/DATE.2011.5763022' apa: Klobedanz, K., König, A., & Müller, W. (2011). A Reconfiguration Approach for Faul-Tolerant FlexRay Networks. Proceedings of DATE’11. 2011 Design, Automation & Test in Europe, Grenoble, France. https://doi.org/10.1109/DATE.2011.5763022 bibtex: '@inproceedings{Klobedanz_König_Müller_2011, place={Grenoble, France}, title={A Reconfiguration Approach for Faul-Tolerant FlexRay Networks}, DOI={10.1109/DATE.2011.5763022}, booktitle={Proceedings of DATE’11}, publisher={IEEE}, author={Klobedanz, Kay and König, Andreas and Müller, Wolfgang}, year={2011} }' chicago: 'Klobedanz, Kay, Andreas König, and Wolfgang Müller. “A Reconfiguration Approach for Faul-Tolerant FlexRay Networks.” In Proceedings of DATE’11. Grenoble, France: IEEE, 2011. https://doi.org/10.1109/DATE.2011.5763022.' ieee: 'K. Klobedanz, A. König, and W. Müller, “A Reconfiguration Approach for Faul-Tolerant FlexRay Networks,” presented at the 2011 Design, Automation & Test in Europe, Grenoble, France, 2011, doi: 10.1109/DATE.2011.5763022.' mla: Klobedanz, Kay, et al. “A Reconfiguration Approach for Faul-Tolerant FlexRay Networks.” Proceedings of DATE’11, IEEE, 2011, doi:10.1109/DATE.2011.5763022. short: 'K. Klobedanz, A. König, W. Müller, in: Proceedings of DATE’11, IEEE, Grenoble, France, 2011.' conference: location: Grenoble, France name: 2011 Design, Automation & Test in Europe date_created: 2023-01-17T09:09:25Z date_updated: 2023-01-17T09:09:33Z department: - _id: '672' doi: 10.1109/DATE.2011.5763022 keyword: - Schedules - Fault tolerant systems - Redundancy - Protocols - Automotive engineering - Genetic algorithms language: - iso: eng place: Grenoble, France publication: Proceedings of DATE'11 publisher: IEEE status: public title: A Reconfiguration Approach for Faul-Tolerant FlexRay Networks type: conference user_id: '5786' year: '2011' ... --- _id: '37056' abstract: - lang: eng text: In this paper we present an approach to increase the fault tolerance in FlexRay networks by introducing backup nodes to replace defect ECUs (Electronic Control Units). In order to reduce the memory requirements of such backup nodes, we distribute redundant tasks over different nodes and propose the distributed coordinated migration of tasks of the defect ECU to the backup node at runtime. This approach enhances our former work in, where we extended the FlexRay bus schedule by redundant slots to consider changes in the communication/slot assignment and investigated and evaluated different solutions to migrate the redundant tasks to the backup node using the static and/or dynamic segment of the communication cycle for transmissions. We present the approach of distributed coordination for migration and communication instead of additional dedicated coordinator nodes to further increase the fault tolerance. With this approach we improve the safety of FlexRay networks by avoiding a possible single point of failure due to a dedicated coordinator node also minimizing the necessary time needed for a reconfiguration after an ECU failure. Furthermore, we reduce the overhead within the communication and the demand for additional hardware components. author: - first_name: Kay full_name: Klobedanz, Kay last_name: Klobedanz - first_name: Gilles B. full_name: Defo, Gilles B. last_name: Defo - first_name: Wolfgang full_name: Müller, Wolfgang id: '16243' last_name: Müller - first_name: Timo full_name: Kerstan, Timo last_name: Kerstan citation: ama: 'Klobedanz K, Defo GB, Müller W, Kerstan T. Distributed Coordination of Task Migration for Fault-Tolerant FlexRay Networks. In: Proceedings of SIES 2010. ; 2010. doi:10.1109/SIES.2010.5551384' apa: Klobedanz, K., Defo, G. B., Müller, W., & Kerstan, T. (2010). Distributed Coordination of Task Migration for Fault-Tolerant FlexRay Networks. Proceedings of SIES 2010. International Symposium on Industrial Embedded System (SIES). https://doi.org/10.1109/SIES.2010.5551384 bibtex: '@inproceedings{Klobedanz_Defo_Müller_Kerstan_2010, place={Trento, Italien}, title={Distributed Coordination of Task Migration for Fault-Tolerant FlexRay Networks}, DOI={10.1109/SIES.2010.5551384}, booktitle={Proceedings of SIES 2010}, author={Klobedanz, Kay and Defo, Gilles B. and Müller, Wolfgang and Kerstan, Timo}, year={2010} }' chicago: Klobedanz, Kay, Gilles B. Defo, Wolfgang Müller, and Timo Kerstan. “Distributed Coordination of Task Migration for Fault-Tolerant FlexRay Networks.” In Proceedings of SIES 2010. Trento, Italien, 2010. https://doi.org/10.1109/SIES.2010.5551384. ieee: 'K. Klobedanz, G. B. Defo, W. Müller, and T. Kerstan, “Distributed Coordination of Task Migration for Fault-Tolerant FlexRay Networks,” presented at the International Symposium on Industrial Embedded System (SIES), 2010, doi: 10.1109/SIES.2010.5551384.' mla: Klobedanz, Kay, et al. “Distributed Coordination of Task Migration for Fault-Tolerant FlexRay Networks.” Proceedings of SIES 2010, 2010, doi:10.1109/SIES.2010.5551384. short: 'K. Klobedanz, G.B. Defo, W. Müller, T. Kerstan, in: Proceedings of SIES 2010, Trento, Italien, 2010.' conference: name: International Symposium on Industrial Embedded System (SIES) date_created: 2023-01-17T11:31:38Z date_updated: 2023-01-17T11:31:47Z department: - _id: '672' doi: 10.1109/SIES.2010.5551384 keyword: - Fault tolerant systems - Protocols - Redundancy - Runtime - Payloads - Schedules language: - iso: eng place: Trento, Italien publication: Proceedings of SIES 2010 publication_identifier: eisbn: - 978-1-4244-5841-7 status: public title: Distributed Coordination of Task Migration for Fault-Tolerant FlexRay Networks type: conference user_id: '5786' year: '2010' ...