@misc{11432, abstract = {{Currently, numerous single track railway lines are disused due to economic reasons. One way they could be reactivated for bidirectional on demand traffic is by small cabin-like vehicles, lateral stabilized by a system of control moment gyroscopes and a moveable mass. Regarding such a vehicle, there is currently no reference in comparison with other vehicles and no experimental experience or the like. To ensure the functionality and safety of the vehicle even before its realization, a model-based design is carried out for development, analysis, optimization and testing. This paper is focused on the co-simulation of such a vehicle that is controlled by a longitudinal control. In order to take into account the complex interaction between the longitudinal dynamics and the running gear, the entire system must be considered here including the wheel/rail interaction. Co-simulations are performed considering both the mechanical model of the vehicle and the control of the longitudinal dynamics of the overall system. The simulation results show that functionality and safe operation can be ensured by the vehicle longitudinal controls. As a result, the simulation and the measurement of the real system show a good match. By means of HIL and co-simulations, function tests could be shifted to earlier development stages, in order to accelerate the overall development.}}, author = {{Hanselle, Raphael and Stork, Dominic and Lück, Sönke and Rasche, Rainer and Naumann, Rolf and Witte, Stefan}}, booktitle = {{ Advances in Dynamics of Vehicles on Roads and Tracks III Proceedings of the 28th Symposium of the International Association of Vehicle System Dynamics, IAVSD 2023, August 21–25, 2023, Ottawa, Canada - Volume 1: Rail Vehicles}}, editor = {{Huang, Wei and Ahmadian, Mehdi }}, isbn = {{978-3-031-66970-5}}, issn = {{2195-4364}}, keywords = {{field and laboratory testing, autonomous railway vehicles, vehicle control and mechatronics, co-simulation}}, location = {{Ottawa, Canada}}, pages = {{514--523}}, publisher = {{Springer Nature}}, title = {{{Simulation of a Longitudinal Control System for an Automated Driving Self-Stabilized Monorail Vehicle}}}, doi = {{https://doi.org/10.1007/978-3-031-66971-2_54}}, year = {{2024}}, } @misc{10176, author = {{Schmelter, Andreas and Leinhos, Dirk and Flatt, Holger and Ziehn, Jens and Schmelter, Andreas and Brand, Jan-Christopher and Ponholzer, Franz and von der Haar, Henrik and Beyer, Micha and Witte, Stefan}}, issn = {{2629-7973 }}, pages = {{292}}, publisher = {{DZSF}}, title = {{{Sensorik als technische Voraussetzung für ATO-Funktionen}}}, volume = {{31}}, year = {{2023}}, } @misc{13020, abstract = {{Developing AI systems for automatic train operation (ATO) requires developers to have a deep understanding of the human tasks they are trying to replace. This paper fills this gap and translates the regulatory requirements from the context of German railways for the AI developer community. As a result, tasks such as train’s path monitoring for collision prediction, signal detection, door operation, etc. are identified. Based on this analysis, a functionally justified sensor setup with detailed configuration requirements is presented. This setup was also evaluated by a survey within the railway industry. The evaluated sensors include RGB/IR cameras, LIDARs, radars and ultrasonic sensors. Calculations and estimates for the evaluated sensors are presented graphically and included in this paper. However, the ultimate sensor setup is still a subject of research. The results of this paper also address the lack of training and test datasets for railway AI systems. It is proposed to acquire research datasets that will allow the training of domain adaptation algorithms to transform other datasets, thus increasing the number of available datasets. The sensor setup is also recommended for such research datasets.}}, author = {{Tagiew, Rustam and Leinhos, Dirk and von der Haar, Henrik and Klotz, Christian and Sprute, Dennis and Ziehn, Jens and Schmelter, Andreas and Witte, Stefan and Klasek, Pavel}}, booktitle = {{Discover Artificial Intelligence}}, issn = {{2731-0809}}, keywords = {{Automatic train operation, ATO, GoA3, GoA4, Perception, AI}}, number = {{1}}, publisher = {{Springer International Publishing }}, title = {{{Sensor system for development of perception systems for ATO}}}, doi = {{10.1007/s44163-023-00066-4}}, volume = {{3}}, year = {{2023}}, } @misc{10172, abstract = {{This paper introduces the specific requirements of the domain of train operation and its regulatory framework to the AI community. It assesses sensor sets for driverless and unattended train operation. It lists functionally justified ranges of technical specifications for sensors of different types, which will generate input for AI perception algorithms (i.e. for signal and obstacle detection). Since an optimal sensor set is the subject of research, this paper provides the specification of a generic data acquisition platform as a crucial step. Some particular results are recommendations for the minimal resolution and shutter type for image sensors, as well as beam steering methods and resolutions for LiDARs.}}, author = {{Rustam, Tagiew and Dirk, Leinhos and von der Haar, Henrik and Klotz, Christian and Sprute, Dennis and Ziehn, Jens and Schmelter, Andreas and Witte, Stefan and Klasek, Pavel}}, booktitle = {{Dependable Computing – EDCC 2022 Workshops}}, editor = {{Marrone , Stefano}}, isbn = {{978-3-031-16244-2}}, location = {{Zaragoza, Spain}}, publisher = {{Springer International Publishing}}, title = {{{Onboard Sensor Systems for Automatic Train Operation}}}, doi = {{10.1007/978-3-031-16245-9_11}}, year = {{2022}}, } @misc{10173, author = {{Klotz, Christian and Leinhos, Dirk and Ponholzer, Franz and Witte, Stefan and Sprute, Dennis}}, booktitle = {{Eisenbahntechnische Rundschau : ETR ; Impulsgeber für das System Bahn }}, issn = {{0013-2845}}, number = {{10}}, publisher = {{DVV Media Group, Eurailpress }}, title = {{{Test- und Trainingsdaten für ATO-Perzeptionssysteme - Anforderungen an ein Messsystem}}}, volume = {{71}}, year = {{2022}}, } @misc{10175, abstract = {{Kontaktlose Daten- und Energieübertragung kann in der Industrie viele Vorteile gegenüber herkömmlichen Steckverbindern bieten. Dies gilt insbesondere dann, wenn die Steckverbindung trenn- oder verdrehbar sein soll, da Steck- oder Schleifkontakte konstruktionsbedingt eine begrenzte Lebensdauer und Resistenz gegen Umwelteinflüsse aufweisen. In dieser Arbeit wird ein System zur kontaktlosen Datenübertragung für Industrial Ethernet im 60,5 GHz Band vorgestellt. Das System nutzt Commercial off-the-shelf (COTS) Komponenten und erreicht damit eine völlig transparente Übertragung von 100BASE-TX Ethernet mit einer festen Latenz von lediglich 5,27 µs, womit es sich für Echtzeit- und Motion-Control-Anwendungen eignet.}}, author = {{Letmade, Jan and Heß, Roland and Witte, Stefan}}, booktitle = {{Kommunikation in der Automation : Beiträge des Jahreskolloquiums KommA 2022}}, editor = {{Jasperneite, Jürgen}}, isbn = {{978-3-9818463-3-1}}, keywords = {{Kontaktlose Datenübertragung, Industrial Ethernet}}, location = {{Lemgo}}, publisher = {{ Institut für industrielle Informationstechnik - inIT der Technischen Hochschule Ostwestfalen-Lippe }}, title = {{{Latenzoptimierte, kontaktlose Datenübertragung für Industrial Ethernet}}}, doi = {{ https://doi.org/10.25644/a4ws-9a49 }}, year = {{2022}}, } @inbook{12416, author = {{Witte, Stefan and Falkemeier, Guido and Lohweg, Volker}}, booktitle = {{50 Jahre Technische Hochschule Ostwestfalen-Lippe}}, editor = {{Hofmann, Martin Ludwig and Lemme, Kathrin and Löffl, Josef and Nautz, Jürgen}}, isbn = {{978-3-88778-622-9}}, pages = {{145--154}}, publisher = {{Spurbuchverlag}}, title = {{{Innovationskette Bildung, Forschung und Wirtschaft als strategisches Element der Technischen Hochschule Ostwestfalen-Lippe}}}, year = {{2021}}, } @inbook{12417, author = {{Witte, Stefan and Mellies, Lisa}}, booktitle = {{50 Jahre Technische Hochschule Ostwestfalen-Lippe}}, editor = {{Hofmann, Martin Ludwig and Lemme, Kathrin and Löffl, Josef and Nautz, Jürgen}}, isbn = {{978-3-88778-622-9}}, pages = {{155--164}}, publisher = {{Spurbuchverlag}}, title = {{{Werkstattbericht zur Forschungsstrategie an der Technischen Hochschule OWL}}}, year = {{2021}}, } @unpublished{4864, author = {{Flasskamp, Martin and Fast, Harry and Fliedner, Niels Hendrik and Henze-Sakowsky, Annika and Hufen, Florian and Lohmann, Paul and Lück, Söhnke and Schmelter, Andreas and Jungeblut, Thorsten and Jasperneite, Jürgen and Naumann, Rolf and Rückert, Ulrich and Schulte, Thomas and Witte, Stefan}}, publisher = {{Verbundforschungsprojekts MOVE-IN-OWL}}, title = {{{Vorstudie Vernetzte Mobilität OWL}}}, year = {{2020}}, } @misc{10171, author = {{Hagenlocher, Stefan and Wittenbrink, Paul and Leuchtmann, Carsten and Galonske, Boris and Kehrmann, Titus and Hecht, Markus and Leiste, Mirko and Discher, Saskia and König, Rainer and Pollehn, Tobias and Ruf, Moritz and Witte, Stefan and Gehrke, Sebastian and Hess, Roland and Röckemann, Kristian and Steinmetz, Andreas}}, pages = {{188}}, publisher = {{Bundesministerium für Verkehr und digitale Infrastruktur - BMDV}}, title = {{{Erstellung eines Konzeptes für die EU-weite Migration eines Digitalen Automatischen Kupplungssystems (DAK) für den Schienengüterverkehr : Schlussbericht}}}, year = {{2020}}, } @inproceedings{6003, abstract = {{In industriellen Szenarien wächst seit Längerem der Bedarf an drahtloser und zuverlässiger Kommunikation. Es gibt hierzu einige aus der IT-Welt adaptierte Standards, welche in vielen Anwendungen im industriellen Umfeld nicht ausreichen. Daher wurde bei der Spezifikation des neuen 5G-Standards explizit die Nutzung im industriellen Umfeld mit berücksichtigt. Diese Arbeit beschäftigt sich mit den Vorteilen der Multi-Connectivity (MC), welche sich durch die Architektur des neuen 5G-NR Standards in der Automatisierungstechnik ergeben können. Hierzu wurden im ersten Schritt Funkkanalmessungen in einer industrienahen Umgebung – der SmartFactoryOWL – durchgeführt, und im weiteren Verlauf die MC in einen Kommunikationsstack integriert und die Zuverlässigkeit (Reliability) (REL) bei verschiedenen MCKonfigurationen ermittelt. Im praktischen Aufbau konnte eine erhöhte REL der drahtlosen Kommunikation im industriellen Kontext unter Einsatz der MC nachgewiesen werden.}}, author = {{Fliedner, Niels Hendrik and Heß, Roland and Witte, Stefan}}, booktitle = {{KommA 2019 : Kommunikation in der Automation : 20.-21.11.2019 : 10. Jahreskolloquium "Kommunikation in der Automation"}}, editor = {{Jumar, Ulrich and Jasperneite, Jürgen}}, isbn = {{978-3-944722-85-6}}, keywords = {{5G, Multi-Connectivity, Zuverlässigkeit}}, location = {{Magdeburg}}, publisher = {{Otto-von-Guericke-Universität Magdeburg. R-PÖ}}, title = {{{Multi-Connectivity in 5G Industrial Environments}}}, year = {{2019}}, } @misc{10169, abstract = {{The reduction of wires and connections is a fundamental necessity for upcoming industrial 4.0 solutions, requiring a large amount of reconfigurability and flexibility. Our research focuses on recent ways of combining energy and data transmission in single contactless transducers, enabling easy installation, maintenance and possible fulfilment of high protection classes. While this approach can typically be solved by combining Wifi and inductive energy transfer, the Wifi aspect is often limited by the available media access and channel occupation. Another issue is the real time capability of Wifi or other wireless transmission protocols like IEEE 802.15.4. While creating a new wireless or contactless standard is beyond the focus of this work, we concentrate on combining existing technologies and their interoperability. This includes powerline communication systems, near field data transmission and inductive energy transfer mechanisms.}}, author = {{Wesemann, Derk and Witte, Stefan and Schmelter, Andreas and Heß, Roland}}, booktitle = {{Communication in automation : 2016 IEEE World Conference on Factory Communication Systems (WFCS)$dMay 3-6, 2016, Aveiro, Portugal}}, isbn = {{ 978-1-5090-2339-4 }}, keywords = {{Automation, Industry 4.0, Contactless Data Transmission, Contactless Energy Transmission, Wireless Communication}}, location = {{Aveiro, Portugal}}, publisher = {{IEEE}}, title = {{{Flexible factory automation: Potentials of contactless transmission systems, combining state-of-the-art technologies}}}, doi = {{10.1109/WFCS.2016.7496533}}, year = {{2016}}, } @inproceedings{4605, author = {{Pethig, Florian and Schriegel, Sebastian and Jasperneite, Jürgen and Witte, Stefan}}, booktitle = {{Die Energiewende : blueprints for the new energy age ; International ETG Congress 2015, November 17-18, 2015, World Conference Center, Bonn }}, editor = {{Speh, Rainer}}, isbn = {{978-3-8007-4121-2}}, location = {{Bonn}}, pages = {{527--533}}, publisher = {{VDI-Verl.}}, title = {{{EMiLippe - Business E-Mobility in the Rural Region of Ostwestfalen-Lippe based on Renewable Energy}}}, volume = {{147}}, year = {{2015}}, } @misc{10167, abstract = {{This paper discusses an alternative to common Powerline or Power-over-Ethernet applications, combining a 100BASE-TX-equivalent full duplex communication and simultaneous DC power transmission on one single twisted pair wire. The reduction of wires and connections can potentially ease the modularity and reconfigurability of industrial production installations, if the data communication offers a sufficiently high robustness against influences from the DC power transmission. This part of our research focuses on the necessary electrical adaptations between data and power circuitry and evaluates interference scenarios that are common for industrial fieldbus installations.}}, author = {{Wesemann, Derk and Dünnermann, Jens and Schaller, Marian and Banick, Norman and Witte, Stefan}}, booktitle = {{2015 IEEE World Conference on Factory Communication Systems (WFCS)}}, keywords = {{Wires, Transmission line measurements, Transceivers, Data communication, Power transmission lines, Wiring, Inductance}}, location = {{Palma de Mallorca, Spain}}, publisher = {{IEEE}}, title = {{{Less wires — A novel approach on combined power and ethernet transmission on a single, unshielded twisted pair cable}}}, doi = {{10.1109/WFCS.2015.7160588}}, year = {{2015}}, } @misc{10166, author = {{Dünnermann, Jens and Fuchs, Stefan and Schmidt, Hans-Peter and Witte, Stefan}}, location = {{Paderborn, Germany}}, publisher = {{IEEE}}, title = {{{Demo: Real time Ethernet with unshielded twisted single pair cabling}}}, year = {{2014}}, } @misc{10165, author = {{Wesemann, Derk and Grünberg, Olaf and Witte, Stefan}}, booktitle = {{Embedded Systems Symposium München}}, location = {{München}}, publisher = {{nn}}, title = {{{CAN-Transceiver im Nahfeld - ein kontaktloser Feldbus}}}, year = {{2013}}, } @misc{10163, author = {{Wesemann, Derk and Witte, Stefan and Michels, Jan-Stefan and Beikirch, Helmut}}, booktitle = {{1. Elektronik wireless power congress}}, publisher = {{ZVEI}}, title = {{{Konzeption eines energieeffizienten induktiven Übertragungssystems für eine flexible Anzahl sekundärer Verbraucher - Contactless Power Bus}}}, year = {{2012}}, } @misc{10164, abstract = {{Cognitive radios (CR) can sense and detect temporarily available spectral holes for an opportunistic operation to improve the spectral efficiency and coexistence of industrial radio systems. It will be of particular interest for a CR system to apply predictive modeling in order to forecast the behavior of the coexisting environment. A secondary cognitive user shall use preemptive tuning of its operating parameters following the predictive model. However, a considerable challenge is to generate an accurate model and predict efficiently in order to meet strict time related requirements of industrial applications. Such predictive modeling has already gained some attention but real-time experimental results have never been reported to the best of our knowledge. In this contribution we investigate the performance of a Markov model based CR system using simulative and experimental environments for its application in industrial systems.}}, author = {{Ahmad, Kaleem and Meier, Uwe and Witte, Stefan}}, booktitle = {{Proceedings of 2012 IEEE 17th International Conference on Emerging Technologies & Factory Automation (ETFA 2012)}}, isbn = {{978-1-4673-4735-8 }}, keywords = {{cognitive radio, Markov processes, radio spectrum management}}, location = {{Krakow, Poland }}, publisher = {{IEEE}}, title = {{{Predictive Oppertunistic Spectrum Access Using Markov Models}}}, doi = {{10.1109/ETFA.2012.6489557}}, year = {{2012}}, } @misc{10160, author = {{Wesemann, Derk and Gleissner, Michael and Söllner, Matthias and Witte, Stefan and Michels, Jan-Stefan and Schmidt, Rüdiger and Schmidt, Hans-Peter}}, booktitle = {{Tagungsband - AALE 2011 : 8. Fachkonferenz, Göppingen ; das Forum für Fachleute der Automatisierungstechnik aus Hochschulen und Wirtschaft }}, isbn = {{978-3-8356-3321-6}}, location = {{Göppingen}}, pages = {{361--370}}, publisher = {{ Oldenbourg-Industrieverl. }}, title = {{{Hocheffiziente, kontaktlose Energie- und Datenübertragung – Systemgestaltung für anreihbare Automatisierungskomponenten}}}, year = {{2011}}, } @misc{10161, author = {{Schmelter, Andreas and Ahmad, Kaleem and Grotekemper, Michael and Riegel, Adrian and Witte, Stefan}}, location = {{IWMS}}, title = {{{FuLOG – Radio Based Data Logger For Integration In Production Processes}}}, year = {{2011}}, } @misc{10157, author = {{Neufeld, Paul and Meier, Uwe and Helmig, Kai and Witte, Stefan}}, booktitle = {{Elektronik : Organ der GMM}}, issn = {{0013-5658 }}, number = {{7}}, pages = {{36--41}}, publisher = {{WEKA Fachmedien GmbH }}, title = {{{Die Vermessung industrieller Funksysteme - Echtzeitfähige Kanalemulatoren schaffen reproduzierbare Testumgebungen}}}, year = {{2010}}, } @misc{10158, abstract = {{Die einwöchige Summer Academy findet einmal pro Jahr in einer Tagungsstätte außerhalb der  Hochschule  statt.  In  dieser  Umgebung  bearbeiten  Studierende  der  Studiengänge  Elektrotechnik,  Informationstechnik und Mechatronik zusammen mit Lehrenden ein aktuelles technisch/wissenschaftliches  Thema  in  Kleingruppen  und  präsentieren  die  Ergebnisse  am  Ende  der  Woche. Die gesamte Gruppe bleibt zusammen und übernachtet am Ort der Veranstaltung. Ein spezielles Rahmenprogramm ergänzt diese Veranstaltung. In diesem Beitrag wird über die Erfahrungen der ersten Jahre berichtet, es werden Themenfelder und das verfolgte Konzept vorgestellt. }}, author = {{Witte, Stefan and Niggemann, Eberhard and Schmidt, Hans-Peter and Zimmermann, Bernhard}}, booktitle = {{agungsband - AALE 2010 : 7. Fachkolloquium für Angewandte Automatisierungstechnik in Lehre und Entwicklung an Fachhochschulen : Wien, 11./12. Februar 2010, Fachhochschule Technikum Wien }}, editor = {{Malisa, Viktorio}}, isbn = {{ 978-3-902759-00-9 }}, keywords = {{Summer Academy, Projektarbeiten, Lehre}}, location = {{Wien}}, pages = {{213--216}}, publisher = {{F-AR, Verein zur Förderung der Automation u. Robotik}}, title = {{{Summer Academy - Fördern und Fordern außerhalb der Hochschule}}}, year = {{2010}}, } @misc{10159, author = {{Seibold, Christopher and Söllner, Matthias and Schmidt, Rüdiger and Michels, Jan-Stefan and Wesemann, Derk and Witte, Stefan and Schmidt, Hans-Peter}}, location = {{Szczecin, Poland}}, title = {{{Measurement and Design Optimization for Contact less Power Supplies in industrial automation}}}, year = {{2010}}, } @misc{10189, abstract = {{In diesem Dokument wird die fachliche und didaktische Vorbereitung des Themas „Automa‐tion und Ethernet ‐ Programmieren einer Bedienen‐Beobachten‐Anwendung auf Basis von Raw‐Ethernet und UDP“ vorgestellt. Die Elemente und die Funktionsweise des Demomodells einer Indust‐rieanlage werden präsentiert. Die Anwendung des Konzepts in der Praxis bei der Weidmüller Summer Academy 2009 und die erzielten Ergebnisse der Studenten werden diskutiert. Der Prototyp einer Er‐weiterung für das Feldbussystem PROFINET wird vorgestellt. }}, author = {{Söllner, Matthias and Niggemann, Eberhard and Witte, Stefan and Zimmermann, Bernhard and Schmidt , Hans-Peter Schmidt }}, booktitle = {{AALE 2010 TAGUNGSBAND 7. Fachkolloquium für Angewandte Automatisierungstechnik in Lehre und Entwicklung an Fachhochschulen Wien, 11./12. Februar 2010 Fachhochschule Technikum Wien}}, editor = {{Malisa, Viktorio }}, isbn = {{978‐3‐902759‐00‐9}}, keywords = {{Automation, Raw‐Ethernet, ARM, Realtime Linux, PROFINET, Lehre}}, location = {{Wien}}, pages = {{193--196}}, publisher = {{F-AR, Verein zur Förderung der Automation u. Robotik}}, title = {{{Demonstrationsmodell „Automation und Ethernet“}}}, year = {{2010}}, } @inproceedings{2077, abstract = {{In this paper we present an optical measurement system approach for quality analysis of brakes which are used in high-speed trains. The brakes consist of the so called brake discs and pads. In a deceleration process the discs will be heated up to 500°C. The quality measure is based on the fact that the heated brake discs should not generate hot spots inside the brake material. Instead, the brake disc should be heated homogeneously by the deceleration. Therefore, it makes sense to analyze the number of hot spots and their relative gradients to create a quality measure for train brakes. In this contribution we present a new approach for a quality measurement system which is based on an image analysis and classification of infra-red based heat images. Brake images which are represented in pseudo-color are first transformed in a linear grayscale space by a hue-saturation-intensity (HSI) space. This transform is necessary for the following gradient analysis which is based on gray scale gradient filters. Furthermore, different features based on Haralick's measures are generated from the gray scale and gradient images. A following Fuzzy-Pattern-Classifier is used for the classification of good and bad brakes. It has to be pointed out that the classifier returns a score value for each brake which is between 0 and 100% good quality. This fact guarantees that not only good and bad bakes can be distinguished, but also their quality can be labeled. The results show that all critical thermal patterns of train brakes can be sensed and verified.}}, author = {{Glock, Stefan and Hausmann, Stefan and Gerke, Sebastian and Warok, Alexander and Spiess, Peter and Witte, Stefan and Lohweg, Volker}}, booktitle = {{Optical measurement systems for industrial inspection VI : 15 - 18 June 2009, Munich, Germany / sponsored by SPIE Europe. Peter H. Lehmann, ed. ; Pt. 2 }}, isbn = {{ 9780819476722 }}, location = {{München}}, publisher = {{SPIE }}, title = {{{Optical classification for quality and defect analysis of train brakes}}}, doi = {{https://doi.org/10.1117/12.827457}}, volume = {{7389}}, year = {{2009}}, } @misc{10155, abstract = {{This paper describes a method for automatically obtaining the order and position of contactless connected network participants in a linear physical topology. While the sequence of network devices can be determined with quite simple methods in networks with physical interconnections, these methods can not be applied in contactless networks. This work is based on a linear network topology using a backbone rail, which includes mechanisms for contactless energy and data transmission. The position estimation for each attached network device can be performed by determining a specific physical characteristic, which is altered along the rail extension. The proposed solution uses a capacitive resonant circuit to achieve a position detection.}}, author = {{Wesemann, Derk and Witte, Stefan and Michels, Jan-Stefan}}, booktitle = {{2009 International Conference on Electrical and Electronics Engineering - ELECO 2009}}, isbn = {{978-9944-89-818-8}}, keywords = {{network topology, position measurement, voltage measurement, wireless sensor networks}}, location = {{Bursa, Turkey }}, publisher = {{IEEE}}, title = {{{Position Detection in linear, proximity coupling Networks}}}, doi = {{10.1109/ELECO.2009.5355273}}, year = {{2009}}, } @misc{10156, abstract = {{This paper describes an approach for a contactless, inductively coupled resonant energy supply system for multiple, independent endpoints. Typical contactless inductive energy supplies in industrial applications involve a combination of one primary inverter/coil and one secondary coil with a rectifier and a load. The work presented in this paper issues a one-to-many-approach instead, which can be used for creating a contactless automation network, having multiple secondary side loads driven by only one primary coil. The challenge is to run such a system in resonance, as every participant potentially affects the resonant frequency, and therefore the overall system efficiency. The effects of multiple participants on the resonant frequency are modeled, and the theoretical examinations are backed up by measurements run on a rail-based test system.}}, author = {{Wesemann, Derk and Michels, Jan-Stefan and Witte, Stefan}}, booktitle = {{2009 International Conference on Electrical and Electronics Engineering - ELECO 2009}}, isbn = {{978-9944-89-818-8 }}, keywords = {{coils, load flow, rails, rectifiers}}, location = {{ Bursa, Turkey}}, publisher = {{IEEE}}, title = {{{Effects of multiple loads in a contactless, inductively coupled linear power transfer system}}}, doi = {{10.1109/ELECO.2009.5355275}}, year = {{2009}}, } @misc{10154, abstract = {{The performance investigation of different Bluetooth modules needs a module independent approach, which can be used in real time and which allows to consider different Bluetooth modules and communication modes. This paper will give a description of a special measurement approach that was developed and implemented. The performance-parameters Bluetooth-Packet-Delay, Bit Error Rate (BER) and Packet Loss Rate (PLR) are evaluated. A series of first investigations was conducted using the implemented measurement approach to show the evaluation possibilities. Two different Bluetooth modules for different packet types and packet sizes were used.}}, author = {{Warriach, Ehsan Ullah and Witte, Stefan}}, booktitle = {{4th International Conference on Emerging Technologies : ICET 2008}}, isbn = {{9781424422104}}, keywords = {{Bluetooth, performance evaluation}}, location = {{Rawalpindi, Pakistan}}, publisher = {{IEEE}}, title = {{{Approach for performance investigation of different Bluetooth modules and communication modes}}}, doi = {{10.1109/ICET.2008.4777494}}, year = {{2008}}, } @misc{10209, author = {{Becker, Christian and Heiss, Stefan and Ingenhorst, Stefan and Schroeder, Stefan and Witte, Stefan}}, booktitle = {{Der Eisenbahningenieur : EI / Verband Deutscher Eisenbahn-Ingenieure e.V. (VDEI) }}, issn = {{0013-2810}}, number = {{9}}, publisher = {{DVV Media Group, Eurailpress}}, title = {{{IT meets Railways – Anforderungen für IP-basierte LANs in Zügen}}}, year = {{2008}}, } @misc{10153, abstract = {{This paper deals with a performance evaluation of a Bluetooth based industrial real-time sensor actuator interface for stationary and mobile applications. The investigations were carried out in harsh industrial environments in the presence of parasitic machine emissions, intentional and unintentional interferers. The air paths were obstructed by moving machine parts and daily work traffic. As a result we can conclude, that wireless automation systems based on Bluetooth technology are extremely reliable due to their inherent system features like adaptive frequency hopping at high operating frequencies, error detection and correction. Neither parasitic machine emissions nor other radio systems or transceiver movements can impair the transmission, as long as distances are below 30 m}}, author = {{Meier, Uwe and Witte, Stefan and Helmig, Kai and Höing, Michael and Schnückel, Markus and Krause, Herrmann}}, booktitle = {{12th IEEE Conference in Emerging Technologies and Factory Automation (ETFA 2007 Proceedings)}}, isbn = {{978-1-4244-0825-2 }}, keywords = {{Bluetooth, mobile communication, performance evaluation, telecommunication traffic}}, location = {{Patras, Greece}}, pages = {{33--37}}, publisher = {{IEEE}}, title = {{{Performance Evaluation and Prediction of a Bluetooth Based Real-Time Sensor Actuator System in Harsh Industrial Environments}}}, doi = {{10.1109/EFTA.2007.4416750}}, year = {{2007}}, } @techreport{10180, author = {{Witte, Stefan and Sander, C. and Steffan, H. }}, publisher = {{nn}}, title = {{{Breitbandige drahtlose Netzzugänge in ländlichen Gebieten}}}, year = {{2007}}, } @misc{10152, author = {{Witte, Stefan and Glandorf, Hermann and Sander, Christian}}, booktitle = {{Wireless technologies : von der Technologie zur Anwendung : 8. Kongress, 27. - 28. September 2006, Dortmund}}, editor = {{Wollert, Jörg}}, isbn = {{978-3-18-377210-0}}, location = {{Dortmund}}, pages = {{7--16}}, publisher = {{VDI}}, title = {{{Untersuchungen zur WiMax-Technologie als breitbandiger Internetzugang im ländlichen Gebiet}}}, volume = {{10}}, year = {{2006}}, } @misc{10150, author = {{Witte, Stefan and Schnückel, Markus }}, booktitle = {{Elektronik : Organ der GMM}}, number = {{1}}, pages = {{38--44}}, publisher = {{WEKA Fachmedien GmbH}}, title = {{{Keine neuen Drähte-Drahtlose Kommunikation von Automatisierungskomponenten}}}, year = {{2005}}, } @misc{10151, author = {{Witte, Stefan and Pape, S.}}, booktitle = {{Elektronik : Organ der GMM}}, issn = {{0013-5658 }}, number = {{7}}, pages = {{56--60}}, publisher = {{WEKA Fachmedien GmbH}}, title = {{{Bluetooth-Kommunikation unter JAVA- Ein System zur Konfiguration funkbasierter Automatisierungssysteme}}}, year = {{2005}}, } @misc{10181, author = {{Witte, Stefan and Stanimirov, M.}}, title = {{{Wireless in Automation}}}, year = {{2004}}, } @misc{8171, author = {{Kleinsorge, Ralf and Witte, Stefan and Meier, Uwe}}, booktitle = {{Signal+Draht, Rail Signalling + Telecommunication, 93. Jahrgang, Heft 3/2001}}, issn = {{0037-4997}}, number = {{3}}, publisher = {{DVV Media Group, Eurailpress}}, title = {{{Funkkommunikation im Güterzug}}}, volume = {{93}}, year = {{2001}}, } @misc{10148, author = {{Minde, Frank and Witte, Stefan}}, booktitle = {{Eisenbahntechnische Rundschau}}, number = {{5}}, pages = {{256 -- 263}}, publisher = {{DVV Media Group, Eurailpress}}, title = {{{FEBIS: Kommunikationsbasierte elektronisch gesteuerte Bremse}}}, volume = {{50}}, year = {{2001}}, } @misc{10178, author = {{Kleinsorge, Ralf and Witte, Stefan and Meier, Uwe}}, booktitle = {{Signal + Draht : SD = Rail signalling + telecommunication }}, issn = {{0037-4997}}, number = {{3}}, pages = {{46 -- 50}}, publisher = {{DVV Media Group, Eurailpress}}, title = {{{Radio Communication within Freight Trains}}}, year = {{2001}}, } @misc{10182, author = {{Grasso, Angelo and Witte, Stefan}}, booktitle = {{World Congress on Railway Research : markets, products, technology ; proceedings of the sessions, special poster presentations, posters of the WCRR 2001 ; 25. - 29. November 2001, KölnMesse}}, location = {{Köln}}, publisher = {{WCRR}}, title = {{{Description of the FEBIS wire protocol}}}, year = {{2001}}, } @misc{10183, author = {{Witte, Stefan and Tione, R. and Launay, A. and Coulange, C.}}, booktitle = {{World Congress on Railway Research : markets, products, technology ; proceedings of the sessions, special poster presentations, posters of the WCRR 2001 ; 25. - 29. November 2001, KölnMesse}}, location = {{Köln}}, publisher = {{WCRR}}, title = {{{FEBIS System Aspects}}}, year = {{2001}}, } @misc{10184, author = {{Guigon, Guigon and Witte, Stefan}}, booktitle = {{World Congress on Railway Research : markets, products, technology ; proceedings of the sessions, special poster presentations, posters of the WCRR 2001 ; 25. - 29. November 2001, KölnMesse}}, location = {{Köln}}, publisher = {{WCRR}}, title = {{{Development of the FEBIS-System}}}, year = {{2001}}, } @misc{10188, author = {{Minde, Frank and Engelmann, Jens and Witte, Stefan}}, booktitle = {{Eisenbahntechnische Rundschau : ETR ; Zeitschrift für die gesamte Eisenbahntechnik}}, issn = {{0013-2845 }}, number = {{11}}, pages = {{745 -- 750}}, publisher = {{DVV Media Group, Eurailpress}}, title = {{{Zentrale Komponenten eines intelligenten Güterzugs}}}, volume = {{49}}, year = {{2000}}, }