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International Workshop on Research and Education in Mechatronics (REM)

作者： Kaushiknarayanan Chandrasekaran Samer Telawi Josef Börscök Masters student in Functional Safety Engineering University of Kassel Kassel Germany Institute for Computer Architecture and System Programming University of Kassel Kassel Germany

ISBN: (数字)9798331505974

ISBN: (纸本)9798331505981

The Formula Student Driverless discipline is a race car competition for university students competing with self-constructed autonomous vehicle to race in the tracks without the help of human race car drivers. This paper aims to investigate the development of the perception system using Computer vision technique in different frameworks for the Herkules Racing Team (HRT) which is the Formula Student team of the University of Kassel.

关键词： Surveys Computer vision Mechatronics Software packages Education Full stack Automobiles MATLAB Python Vehicles

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GAIWAP (Gait Analysis to Determine the Improvement of Walking Ability in People with Disabilities)

GAIWAP (Gait Analysis to Determine the Improvement of Walkin...

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2025 International Conference on Control, Automation, and Instrumentation, IC2AI 2025

作者： Borcsok, Josef Schwarz, Michael H. Drabesch, Malte Kinsch, Christian Strobl, Walter Michael Sengolge, Mathilde Breitenbach, Jurgen University of Kassel Dept. of computer architecture and system programming Kassel Germany Universität für Weiterbildung Krems Fakultät für Gesundheit und Medizin Medizin und Forschung Zentrum für Gesundheitswissenschaften und Medizin Dept. für Gesundheitswissenschaften KremsA-3500 Austria

ISBN: (纸本)9798331529604

The use of complex electronic systems in medical technology applications is constantly increasing. These systems are becoming increasingly important, particularly in the area of analyzing the progress of treatment, as they can be used to identify any deficits that may still exist. Although systems are now available from a number of manufacturers, they are not always applicable to all mobile problems, so approaches with adapted system technology must be used. © 2025 IEEE.

关键词： Gait analysis

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Advanced IOT Traffic Light Control system 5

Advanced IOT Traffic Light Control System

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5th International Conference on Advances in Computational Tools for Engineering Applications, ACTEA 2023

作者： Hamad, Martin Abou El Hajj, Antonio Daou, Roy Abi Zeid Hayek, Ali Haidar, Gaby Abou Lebanese German University Faculty of Public Health Biomedical Technologies Department Lebanon MART Learning Education and Research Center Lebanon University of Kassel Department of Computer Architecture and System Programming Kassel Germany American University of Science and Technology Engineering Faculty Zahle Lebanon

ISBN: (纸本)9798350309959

For several years, traffic congestion has been a major problem in big cities where the number of cars and different means of transportation has been increasing significantly. The problem of congestion is becoming more and more critical, and if not treated smartly this issue will negatively affect drivers by wasting time and fuel gas while waiting for hours in lanes. This paper presents a new and smart way to mitigate this issue in an affordable cost, minimum processing power, and low power consumption. This concept takes into consideration the majority of the cases that may cause congestion and presents a smart and accurate outputs to ease traffic flow leading to the prediction of the peak hours of traffic congestion for smarter control. A model is designed to study the case of a four lanes crossroad with two traffic lights and two LCD monitors. The strategy in reading data is divided into two parts: real data from sensors and pre collected data from google maps to create a kind of a predicted pattern over a certain time interval. The responsiveness of the system is analyzed thoroughly, and the accuracy of all possible cases is carefully considered and evaluated. Each part of the system was tested alone, and the overall system is still in an ongoing testing phase. The results have shown minimum faulty errors and accepted outputs that can lead to safe traffic control decisions. Finally, integrating more IoT devices and sensors between V2V, V2P, V2I with the help of artificial intelligence will definitely optimize this system with higher accuracy. © 2023 IEEE.

关键词： Traffic congestion

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Study of an OPTO-ASIC for a Functionally Safe Speed Sensor Using the Spatial Frequency Filter Method

Study of an OPTO-ASIC for a Functionally Safe Speed Sensor U...

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IEEE Design and Diagnostics of Electronic Circuits and systems (DDECS)

作者： Frank Wasinski Werner Bonath Ubbo Ricklefs Michael Schwarz Josef Börcsök Dept. of Electrical Engineering and Information Technology THM University of Applied Sciences Giessen Germany ICAS Institute for Computer Architecture and System Programming University of Kassel Kassel Germany

ISBN: (数字)9798331528010

ISBN: (纸本)9798331528027

For decades, speed sensors based on the spatial frequency filter method have successfully proven themselves in a wide range of applications. This makes the sensor concept particularly suitable for the area of functional safety. New filter variants extend the previous measuring range to very low speeds up to standstill detection. By combining the sensor with a safety system on chip for recording and analysing measured values, a functionally safe measuring chain can be established. In order to demonstrate the variability and performance of the new filters, an optical application-specific integrated circuit was designed, which forms the basis for further extensive tests. The core components are a large number of freely configurable photodiode channels, which were realised via a redundant structure, as well as two different transimpedance amplifier concepts. In the further course of the project, the ASIC will be analysed with regard to its desired performance parameters and its robustness.

关键词： Optical filters Semiconductor device measurement Optical design Stimulated emission Safety Topology system-on-chip Optical sensors Optical amplifiers Velocity measurement

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Machine Learning Model for Predicting Failures in the Context of Autonomous Vehicles 7

Machine Learning Model for Predicting Failures in the Contex...

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7th International Conference on system Reliability and Safety, ICSRS 2023

作者： Krini, Abderrahim Ouertani, Aymen Börcsök, Habil. Josef Robert Bosch GmbH Engineering of Reliability and Quality Functional Safety Schwäbisch Gmünd Germany Institute of Functional Safety & Cyber Security Baden-Wuerttemberg Cooperative State University Lörrach Germany University of Kassel Computer Architecture und System Programming Kassel Germany

ISBN: (纸本)9798350306057

In general, failure data is obtained in the automotive industry during the warranty period. If these contain the expression of a service life characteristic for each failure, statements can be made about the reliability and availability of the systems. For this purpose, estimation methods are used to adapt empirical lifetime distributions to theoretical lifetime distributions. By means of the distribution characteristics, a prognosis of the reliability and availability to be expected is also possible beyond the observation time. In addition to the data basis to be investigated, which is available completely in test bench and experimental trials or re-censored in the field, various methods can be used for estimation. In the past, several methods have been used, such as the estimators according to Eckel [1], Kaplan-Meier [2] or the estimators according to Pauli [3]. In general, a field failure is subject to several stresses, which can be described by expressions of several lifetime characteristics. For this application case, which occurs in the automotive industry, the known estimation methods, [1]-[3], cannot be used. In this paper, the necessity of multidimensional estimation methods will be introduced first. Then, a new estimation method for multidimensional metrics is presented. In a further step, mathematical proof is given that the new method can provide realistic results. Finally, two example data sets from bench testing and field are presented. Furthermore, some recommendations for the use of the new method are concretized in this context. © 2023 IEEE.

关键词： Automotive industry

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A theoretical approach to a safety-based predictive adaptation of wireless communication channel parameters in harsh environments

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Safety in Extreme Environments 2020年第1期2卷 93-101页

作者： Gaus, L. Schwarz, M. Boercsoek, J. Computer Architecture and System Programming University of Kassel Kassel Germany

This paper presents an approach to a real-time optimization of safety parameters in wireless communication systems. When considering the GEC–model (Generalized Erasure Channel) and the black channel design of a communication channel, then the PFH (Probability of Failure per Hour) value can be estimated using the parameters ε – BER (bit-error-rate), φ – BLR (bit-loss-rate), v – number of safety related messages per second, n – message length and d_min – minimum distance of a linear code. The number of safety related messages per second v and the message length n, including the information block k and the checksum block r, can be varying between the permissible bounds. Accordingly, the variable parameters can be adjusted at run-time with additional assimilation of the used cyclic code. It allows the real-time prediction and optimization of the safety parameters. In this paper, the concept of the parameter estimation is discussed and based on it the optimization problem is defined. © Springer Nature Switzerland AG 2020.

关键词： Black channel Communication CRC GEC Probability prediction Safety parameter

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A new Estimation Method for Automotive Multidimensional Metrics 31st

A new Estimation Method for Automotive Multidimensional Metr...

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31st European Safety and Reliability Conference, ESREL 2021

作者： Krini, Abderrahim Börcsök, Josef Engineering of Reliability and Quality Robert Bosch GmbH Germany Department of Computer Architecture and System Programming University of Kassel Kassel Germany

ISBN: (纸本)9789811820168

In general, failure data is obtained in the automotive industry during the warranty period. If these contain the expression of a service life characteristic for each failure, statements can be made about the reliability and availability of the systems. For this purpose, estimation methods are used to adapt empirical lifetime distributions to theoretical lifetime distributions. By means of the distribution characteristics, a prognosis of the reliability and availability to be expected is also possible beyond the observation time. In addition to the data basis to be investigated, which is available completely in test bench and experimental trials or re-censored in the field, various methods can be used for estimation. In the past, several methods have been used, such as the estimators according to ECKEL [1], Kaplan-Meier [2] or the estimators according to Pauli [3]. In general, a field failure is subject to several stresses, which can be described by expressions of several lifetime characteristics. For this application case, which occurs in the automotive industry, the known estimation methods, [1], [2], [3], cannot be used. In this paper, the necessity of multidimensional estimation methods will be introduced first. Then, a new estimation method for multidimensional metrics is presented. In a further step, mathematical proof is given that the new method can provide realistic results. Finally, two example data sets from bench testing and field are presented. Furthermore, some recommendations for the use of the new method are concretized in this context. © ESREL 2021. Published by Research Publishing, Singapore.

关键词： Reliability

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Efficiency Measurement of Compressed Air Compressors Using High Availability SoC with 1oo2 Redundancy architecture 11

Efficiency Measurement of Compressed Air Compressors Using H...

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11th International Conference on Electronics, Communications and Networks, CECNet 2021

作者： Abdelawwad, Mohamed Hahn, Eike Boercsoek, Josef Fairbrother, Julian Al Shahadat, Tarek Otto, Peter ICAS Institute for Computer Architecture and System Programming University of Kassel Kassel Germany Postberg + Co. GmbH Kassel Germany

ISBN: (纸本)9781643682402

Compressed air systems are essential components in various industrial and everyday applications. The efficiency of these systems is very important due to their role in the energy consumption of industrial plants. To increase efficiency, a new concept for compressed air compressors based on Industry 4.0 is presented. Due to the aggressive environmental conditions in which the compressed air compressors operate, a new design of a SoC with high availability based on 1oo2 redundancy architecture is developed. © 2022 The authors and IOS Press.

关键词： Energy utilization

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Numerical simulation of irregular waves by HOS method 32nd

Numerical simulation of irregular waves by HOS method

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32nd International Ocean and Polar Engineering Conference, ISOPE 2022

作者： Huang, Congyi Xu, Ping Wan, Decheng Strijhak, Sergei School of Naval Architecture Ocean and Civil Engineering Shanghai Jiao Tong University Shanghai China Marine Design and Research Institute of China Shanghai China Ivannikov Institute for System Programming of the Russian Academy of Sciences Moscow Russia

ISBN: (纸本)9781880653814

Ships and offshore structures often encounter irregular waves in the ocean. Therefore, the simulation of irregular waves is very necessary and meaningful. The potential flow method is often used to simulate the irregular waves because the evolution needs a long time and a large amount of calculation. High order spectral (HOS) method is a kind of potential flow method, which has the advantages of high efficiency. In this paper, the HOS method is used to simulate the formation and evolution of irregular waves. Firstly, the governing equations, boundary conditions and the solving procedure of the HOS-ocean model based on the HOS method are introduced. Then the accuracy and stability of the HOS-ocean model are verified by a standard example. After that, the formation and evolution of two-dimensional and three-dimensional irregular waves are simulated based on JONSWAP spectrum and ITTC spectrum respectively. The frequency domain curves, time domain curves, maximum wave height, maximum wave steepness, average wave steepness and other parameters of the waves generated by the two wave spectrums are compared, and the differences between the two wave spectrums in generating irregular waves are analyzed. © 2022 by the International Society of Offshore and Polar Engineers (ISOPE).

关键词： Potential flow

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Estimation of optimal safety parameters for a communication channel with required SIL 3 at runtime 29

Estimation of optimal safety parameters for a communication ...

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29th European Safety and Reliability Conference, ESREL 2019

作者： Gaus, Larissa Schwarz, Michael Börcsök, Josef Computer Architecture and System Programming University of Kassel Germany

ISBN: (纸本)9789811127243

In this paper, the optimization of safety parameters for a communication channel with the required safety integrity level (SIL) 3 at runtime is investigated. In order to guarantee the safe communication additional measures are needed. One of them is the black channel principle. It allows the transfer of safety related packets over the safety layer parallel to safety irrelevant data. Another method is the protection by a linear code, typically by cyclic redundancy check (CRC). In terms of the safety level, the information channel can be assumed as a generalized erasure channel (GEC) with the set of output symbols (0, e, 1). For this channel a formula for probability of failure per hour (PFH) can be derived using the parameters: bit error ratio, bit loss rate, message rate, code block length and weight spectrum. Within the safety layer, the communication occurs in the send-/receive-response principle (cyclic mode) and the messages can have a length defined by bounds on nmin and nmax. Accordingly, the optimization problem is formulated to minimize the PFH value by optimizing the message length for changing parameter values. © 2019 European Safety and Reliability Association. Published by Research Publishing, Singapore.

关键词： Bit error rate

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