TY - CHAP A1 - Brunthaler, Sebastian A1 - Waas, Thomas A1 - Kucera, Markus T1 - On Verify and Validate a Next Generation Automotive Communication Network T2 - Proceedings of the 9th International Conference on Pervasive and Embedded Computing and Communication Systems - PECCS, 121-127, 2019, Vienna, Austria N2 - As a result of the enormous growth in data traffic for autonomous driving, the conventional in-vehicle network is no longer sufficient and requires new types of network concepts in a vehicle. This part of the automobile is known as the next generation communication network. Since the new car-systems can be extended by various services at any time, the network must adapt dynamically to new requirements wherever possible. For example, data flow must be configured dynamically between new services. Also data rates will be much higher in the future than today. This is one of the main reasons why we need to search for new technologies for data transfer in vehicles. This is based on an in-vehicle ethernet network. The process of configuring networks automatically has been discussed several times in recent years. One of the next steps is verifying and validating the automatic configuration process during the development of the new communication network. This research paper identifies several ways to ensure the automatically generated network configuration leads to a secure system. To achieve that, other parts of the company’s enterprise IT architecture and network technologies, the conventional vehicle network and other options for verification and validation are analysed KW - Automotive KW - Ethernet KW - In-car KW - Vehicle Communications KW - Car-to-Car KW - Autonomous Driving KW - Vehicle Networks Y1 - 2019 SN - 978-989-758-385-8 U6 - https://doi.org/10.5220/0008191601210127 SP - 121 EP - 127 PB - SCITEPRESS - Science and Technology Publications ER - TY - JOUR A1 - Schlegl, Peter A1 - Robatzek, Patrick A1 - Kucera, Markus A1 - Volbert, Klaus A1 - Waas, Thomas T1 - Performance analysis of mobile radio for automatic control in smart grids JF - International Journal of Advancements in Electronics and Electrical Engineering N2 - In the context of a "Smart Grid" research project, together with industrial partners, the OTH-Regensburg realized an intelligent medium-voltage grid in the local area. Goal was to improve the current voltage regulation and to counter the problems with inconsistent energy feed-in of decentralized renewable energy producers. In this paper we discuss the possibilities of using 3rd generation (3G) cellular networks (UMTS) as basic technology to communicate the voltage-levels within a medium-voltage grid. We build an experimental hardware setup to generate data-traffic as specified for the smart grid. By analyzing the performance of 3G cellular networks in terms of transmission latency and rate of failure, we tried to evaluate the usability of this technology for such critical data exchange. Though mobile communication in its structure is not specified for the use of transmitting such infrastructure critical data, the results show a promising high reliability with low transmission latency. The experiments served just to test a fragment of the conditions of use in a real scenario. An expanded test scope is needed to further analyze the performance of mobile radio for automatic control in smart grids. In the end the results discussed in this paper led to a successful prototype of an intelligent medium-voltage grid with mobile radio as communication technology KW - mobile radio KW - cellular data transmission KW - 3G KW - 4G KW - Smart Grid KW - communication Y1 - 2014 UR - http://journals.theired.org/journals/paper/details/5456.html SN - 2319-7498 VL - 4 IS - 1 SP - 69 EP - 75 ER - TY - CHAP A1 - Degueldre, Dennis A1 - Waas, Thomas A1 - Kucera, Markus T1 - Electromagnetic Emission of an Optical-to-BroadR-Reach Converter T2 - Proceedings of the 4th International Conference on Pervasive and Embedded Computing and Communication Systems (PECCS), 2014, Lisbon, Portugal N2 - The automotive solution for Ethernet is BroadR-Reach, which cannot be found as a common Ethernet-interface in the consumer industry. Hence a media converter from IEEE 802.3 Ethernet to BroadR-Reach is needed to debug and test the communication of automotive devices under test (DUT). If the functionality of a BroadR-Reach connection has to be tested for electromagnetic compatibility (EMC), a BroadR-Reach to optical media converter is needed, which has to comply to the same EMC test specifications as the DUT. This research explains the internal structure of a media converter and defines a test setup for copper bound emission test of BroadR-Reach. By using a standardized stripline measurement like it is common for electromagnetic emission test, it could be shown, that the tested Technica/Tinytron media converter can safely be used inside an EMC chamber. Y1 - 2014 SN - 978-989-758-000-0 U6 - https://doi.org/10.5220/0004711401310135 SN - 2184-2817 SP - 131 EP - 135 ER - TY - JOUR A1 - Klingl, F. A1 - Waas, Thomas A1 - Weise, Wolfram T1 - Nuclear bound states of omega mesons JF - Nuclear Physics A N2 - Models based on chiral SU(3)_L \otimes SU(3)_R symmetry and vector meson dominance suggest an attractive potential for the $\omega$-meson in a nuclear medium. We discuss the feasibility of producing nuclear bound states of $\omega$-mesons using $(d,^3He)$ and pion induced reactions on selected nuclear targets. Y1 - 1999 U6 - https://doi.org/10.1016/S0375-9474(99)00114-1 VL - 650 IS - 3 SP - 299 EP - 312 PB - Elsevier ER - TY - INPR A1 - Waas, Thomas A1 - Brockmann, R. A1 - Weise, Wolfram T1 - Deeply bound pionic states and the effective pion mass in nuclear systems N2 - We show that the s-wave pion-nuclear potential which reproduces the deeply bound pionic states in Pb, recently discovered at GSI, is remarkably close to the one constructed directly from low energy theorems based on chiral symmetry. Converting this information into an effective pion mass we find $m_\pi^\star/m_\pi\simeq 1.13$ in the center of the Pb nucleus, and $m_\pi^\star/m_\pi\simeq 1.07$ in symmetric nuclear matter. Y1 - 1997 U6 - https://doi.org/10.48550/arXiv.hep-ph/9704397 N1 - Der Aufsatz wurde peer-reviewed veröffentlicht und ist ebenfalls in diesem Repositorium verzeichnet unter: https://opus4.kobv.de/opus4-oth-regensburg/frontdoor/index/index/docId/8893 ER - TY - JOUR A1 - Waas, Thomas A1 - Brockmann, R. A1 - Weise, Wolfram T1 - Deeply bound pionic states and the effective pion mass in nuclear systems JF - Physics Letters B N2 - We show that the s-wave pion-nuclear potential which reproduces the deeply bound pionic states in Pb, recently discovered at GSI, is remarkably close to the one constructed directly from low energy theorems based on chiral symmetry. Converting this information into an effective pion mass we find m:/m,, N 1.13 in the center of the Pb nucleus, and mi/m,, N 1.07 in symmetric nuclear matter. Y1 - 1997 U6 - https://doi.org/10.1016/S0370-2693(97)00643-6 N1 - Die Preprint-Version ist ebenfalls in diesem Repositorium verzeichnet unter: https://opus4.kobv.de/opus4-oth-regensburg/frontdoor/index/index/docId/7914 VL - 405 IS - 3;4 SP - 215 EP - 218 PB - Elsevier ER -