Anzahl der Treffer: 59
Erstellt: Wed, 06 Jul 2022 23:17:04 +0200 in 0.0732 sec

Nau, Johannes; Richter, Johannes; Streitferdt, Detlef; Henke, Karsten; Bock, Robert Niklas; Mitschele-Thiel, Andreas;
On the development of a unified online laboratory framework. - In: Online engineering and society 4.0, (2022), S. 10-22

This work focuses on the requirements analysis of a modular framework to simplify developing and integrating new or existing remote experiments and laboratories. Besides this technical view, this paper also gives an organizational view on developing such a framework and managing the corresponding modules, which can also be developed by a third party. On a technical side, we provide the requirements to ultimately define the interface between different modules, enabling easy integration on different abstraction levels.The work's basis is the review of individual remote laboratories and existing systems of the past two decades and the author's collective experience. In the spirit of uniting the remote laboratory community, we will follow the IEEE 1876 standard wherever possible and extend it to make our vision of an easy to use, integrable, and extendable framework possible.

Nau, Johannes; Richter, Johannes; Streitferdt, Detlef; Kirchhoff, Michael;
Simulating the printed circuit board assembly process for image generation. - In: 2020 IEEE 44th Annual Computers, Software, and Applications Conference, (2020), S. 245-254

The inspection of printed circuit board assemblies gradually incorporates deep-learning-based classifiers. However, such classifiers require a vast dataset. To our knowledge, such a dataset is not available. This paper proposes a method to simulate the assembly process aiming at generating such a dataset. The simulation of the solder joint shape forming during reflow and the creation of a photorealistic rendering of the assembled board have the most significant impact on the visual appearance of the results. Therefore, this paper focuses on the simulation of these steps. The calculation of the solder joint shape requires minimizing the surface tension energy. For this, the algorithm discretizes the energy equations over a heightmap. The proposed software architecture for the simulation is highly extendable and facilitate future development. Experiments with the simulation of solder joints of a chip resistor show a remarkable similarity to real images from an automatic optical inspection machine.
Streitferdt, Detlef; Sangeorzan, Livia; Nau, Johannes;
Agile-based product line tool development. - In: Modelling and development of intelligent systems, (2020), S. 33-47

Kirchhoff, Michael; Wagner, Lothar; Däne, Bernd; Streitferdt, Detlef; Fengler, Wolfgang;
Case study on design and evaluation of a multi-soft-core processor. - In: 2019 IEEE 10th Annual Information Technology, Electronics and Mobile Communication Conference (IEMCON), (2019), S. 589-594
Henke, Karsten; Wuttke, Heinz-Dietrich; Hutschenreuther, René; Streitferdt, Detlef;
Interactive content objects as GOLDi-lab services : interactive demonstration of ICOs within the hybrid online Onlne lab GOLDi. - In: Online experimentation, (2019), S. 229-230
Kirchhoff, Michael; Kerling, Philipp; Streitferdt, Detlef; Fengler, Wolfgang;
A real-time capable dynamic partial reconfiguration system for an application-specific soft-core processor. - In: International journal of reconfigurable computing, ISSN 1687-7209, Volume 2019, article ID 4723838, 14 pages
Richter, Johannes; Streitferdt, Detlef;
Modern architecture for deep learning-based automatic optical inspection. - In: 2019 IEEE 43rd Annual Computer Software and Applications Conference, (2019), S. 141-145
Weichenhain, Maxi; Fengler, Wolfgang; Streitferdt, Detlef;
How to bring project management of embedded systems to an appropriate level of abstraction for a discrete event model. - In: 2019 IEEE 43rd Annual Computer Software and Applications Conference, (2019), S. 171-176
Richter, Johannes; Streitferdt, Detlef;
Deep learning based fault correction in 3D measurements of printed circuit boards. - In: 2018 IEEE 9th Annual Information Technology, Electronics and Mobile Communication Conference (IEMCON), (2018), S. 227-232
Streitferdt, Detlef; Zimmermann, Armin; Schaffner, Jörg; Kallenbach, Michael;
Complete component-wise software certification for safety-critical embedded devices. - In: 2018 IEEE 9th Annual Information Technology, Electronics and Mobile Communication Conference (IEMCON), (2018), S. 597-602

Safety certification became an increasingly important issue as well as a feature of industrial software development. The certification process for safe software causes enormous efforts and has to be repeatedly executed for any changes in the systems. Modular and component-based software architectures are very common, but cannot use their advantages in the certification process. This paper presents the results of an industrial software development and certification project in the railway domain and enhances a previous work to change components without a re-certification by additional requirements, which have to be met, to allow for changes in the basic framework of the system as well, again, without re-certification.