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This paper approaches the deadlock prevention problem for the well known class of S3PR used in Resource Allocation Systems. The proposed control policy is based on inhibitor arcs and the new Petri net class will be called S3PR2. The liveness characterization of this new class is given. The main application of the approach is to robot motion for a team of robots evolving in a partitioned environment...
The disparity of Petri net models in the literature for the study of resource allocation problems in Flexible Manufacturing Systems (FMSs) is overwhelming. Paradoxically, those models often strongly overlap in terms of their modeling capability. Such clustering seems to be impelled by a mature knowledge of results which capsize liveness at the topological level of the FMS for families of models which...
Recent civil airborne platforms are produced using Integrated Modular Avionics (IMA). IMA promotes both sharing of execution and communication resources by the avionics applications. Designs following IMA decrease the weight of avionics equipment and improve the whole system scalability. However, the price to pay for these benefits is an increase of the system's complexity, triggering a challenging...
Current Cyber-Physical Systems (CPS) must cope with complex requirements that involve diverse hardware and software platforms, communication networks and middleware, legacy systems integration, programming languages, or tools and methodologies. Thus, one of the most challenging aspects in such systems is heterogeneity. On the other hand, such systems often integrate resource constrained embedded systems,...
An AUTOSAR-based software application contains a set of software components, each of which encapsulates a set of runnable entities. In fact, the mission of the system is fulfilled as result of the collaboration between the runnables. Several trends have recently emerged to utilize multi-core technology to run AUTOSAR-based software. Not only the overhead of communication between the runnables is one...
In this paper, we compare and survey different ways to model the scheduling delays corresponding to non-preemptive critical sections being executed by the tasks of different components that ultimately need to share one processor. We focus on the performance of compositional timing analyses for systems and we compare different protocols for the arbitration of tasks that wish to execute critical sections...
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