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Item type:Publication, Access status: with files , A semi-automated approach for requirement-based early validation of flight control platformsWith the current trends in aviation like Single-Pilot-Cockpits and more autonomous functions in aircraft, flight control avionics are bound to become more complex. Future platforms will need to compensate for one or even both pilots, which will require systems that are more reliable. However, state-of-the-art development of flight control avionics does not yet support these demands efficiently. The development process involves numerous stakeholders who are communicating without streamlined interfaces. This leads to a slow and error-prone process during development. New methods are required to improve efficiency and to pave the way for future technologies. In this work, the authors introduce a semi-automatic toolchain which derives usable code for the configuration of devices from natural language requirements. The requirements are noted through modular components, stored as a model-based configuration file and are transformed into executables in the last step. This novel approach allows engineers to input their expertise when defining requirements, while removing tedious transformation tasks. Through automatic configuration testing, the validity of the approach is confirmed.Publicationtype: Journal Article71 226 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: without files , Spatially Distributed Testing in Avionics: Setup, Experiences and Performance Assessment(2022-09); ; Testing of avionics platforms itself and with integrated system functions is a cost driver. Usually the hardware is developed in parallel to the software, which makes the iterative development process more difficult. Since testing of system functions always requires hardware and complex test-benches it is usually conducted quite late in the development process. This paper presents an approach to validate system functions by connecting several parts of a test-bench across the internet resulting in a distributed test-bench. This setup can be used for functional testing and for the preparation of the final system tests before all equipment is shipped into one large test facility. The paper focusses on the setup chosen for interconnection and performance tests that have been carried out to estimate the achievable connection quality with such a setup.Publicationtype: Conference Paper30 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: without files , Testing of High-Lift System Functions with a Distributed Avionics Test Bench(2022-09); ; The new emerging trends in aviation like more autonomous aircraft or green aviation lead to a higher development workload of the supporting avionic infrastructure. To support these technologies, new processes must be developed as to increase the efficiency with which market readiness is made available. Geographically distributed testing reduces the need for transportation of test benches during development and allows for easier adaption before, during and after tests. The communication can be conducted via real-time supporting systems, like the specifically designed quasi-real-time Internet connection hardware FastWAN developed by ExxpertSystems. Additionally, abstract simulation environments can be used as a further approach as to, e.g., confirm interface definitions. This allows for parallel development of the proper test setup while ensuring continuous validation. Therefore, faults can be isolated earlier, and overall development time is reduced.While not replacing the need for proper certification testing, due to delays in the communication between the different systems, basic functionality and compatibility of subsystems can be analyzed. Consequently, development stakeholders are able to participate in the test process from their preferred development environment and therefore retain a high amount of flexibility. This increases the efficiency of late-stage tests, since the common test base is better coordinated.To research the advantages and challenges that this approach offers, a test bench for a high-lift system was set up and operated from three different locations distributed in Germany, each of them providing partial functionality.Publicationtype: Conference Paper53 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: without files , A Semi-Automated Approach for Requirements Based Early Validation of Flight Control Platforms(2021-08); ; Publicationtype: Conference Paper73