Abstract
Future embedded systems and services will be seamlessly connected and will interact on all levels with the infrastructure and cloud. For safety-critical applications this means that it is not sufficient to ensure dependability in a single embedded system, but it is necessary to cover the complete service chain including all involved embedded systems as well as involved services running in the edge or the cloud. However, for the development of such Cyber-Physical Systems-of-Systems (CPSoS) engineers must consider all kinds of dependability requirements. For example, it is not an option to ensure safety by impeding reliability or availability requirements. In fact, it is the engineers’ task to optimize the CPSoS’ performance without violating any safety goals.
In this paper, we identify the main challenges of developing CPSoS based on several industrial use cases and present our novel approach for designing cloud-based safety-critical applications with optimized performance by the example of an automated valet parking system. The evaluation shows that our monitoring and recovery solution ensures a superior performance in comparison to current methods, while meeting the system’s safety demands in case of connectivity-related faults.
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The research leading to these results has partially received funding from the Bavarian Ministry of Economic Affairs, Regional Development and Energy as Fraunhofer High Performance Center Secure Intelligent Systems.
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Drabek, C. et al. (2021). Dependable and Efficient Cloud-Based Safety-Critical Applications by Example of Automated Valet Parking. In: Martins, A.L., Ferreira, J.C., Kocian, A., Costa, V. (eds) Intelligent Transport Systems, From Research and Development to the Market Uptake. INTSYS 2020. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 364. Springer, Cham. https://doi.org/10.1007/978-3-030-71454-3_6
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