Model-Based Engineering and Spatiotemporal Analysis of Transport Systems

To guarantee that modern transport systems carry their passengers in a safe and reliable way, their control software has to fulfill extreme safety and robustness demands. To achieve that, we propose the model-based engineering of the controllers using the tool-set Reactive Blocks. This leads to models in a precise formal semantics that can be formally analyzed. Thus, we can verify that a transport system prevents collisions and fulfills other spatiotemporal properties. In particular, we combine test runs of already existing devices to find out their physical constraints with the analysis of simulation runs using the verification tool BeSpaceD. So, we can discover potential safety hazards already during the development of the control software. A centerpiece of our work is a methodology for the engineering and safety analysis of transportation systems. We elaborate its practical usability by means of two control systems for a demonstrator based on Lego Mindstorms. This paper is an extension of [20].