Stefan Resmerita

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In this paper, we investigate conditions for existence of Zeno behaviors in hybrid systems. These are behaviors that occur in a hybrid system when the system undergoes an unbounded number of discrete transitions in a finite and bounded length of time. Zeno behavior occurs, for example, when a controller unsuccessfully attempts to satisfy an invariance(More)
In this note, the design and analysis of a robust isolation scheme for sensor faults of a class of nonlinear uncertain systems has been presented. A theoretical analysis about the stability, learning, and isola-bility properties of the FDI algorithm has been developed. The fault isolation decision scheme is designed based on some adaptive thresholds , which(More)
Orientation sensing is considered an important means to implement embedded technology enhanced artifacts (often referred to as 'smart artifacts'), exhibiting embodied means of interaction based on their position, orientation, and the respective dynamics. Considering artifacts subject to manual (or 'by-hand') manipulation by the user, we identify hand worn,(More)
—Various programming models for embedded, time-triggered software employ the logical execution time (LET) abstraction in order to achieve time-and value-determinism. In these models, the application software is partitioned into tasks and a LET is associated with every task. In every execution, a task reads input values at the beginning of the LET and writes(More)
Pervasive computing has postulated to invisibly integrate technology into everyday objects in such a way, that these objects turn into smart things. Not only a single object of this kind is supposed to represent the interface among the ''physical world'' of atoms and the ''digital world'' of bits, but a whole landscapes of them. The interaction with such(More)
Pervasive Computing has postulated to invisibly integrate technology into everyday objects in such a way, that these objects turn into smart things. Not only a single object of this kind is supposed to represent the interface among the " physical world " of atoms and the " digital world " of bits, but a whole landscapes of them. The interaction among humans(More)
The paper presents an agent based framework for control of conflict-free scheduling and spacing of airport arrival and approach traffic. The proposed tool incorporates a multi-agent conflict-resolution algorithm that guarantees to arriving aircraft safe approach trajectories, and a dynamic prioritization mechanism that aids in efficient utilization of the(More)
This paper presents a novel paradigm for universal remote control of devices, where universality refers to the ability to control multiple devices with the same control artefact. Here, a device represents a physical appliance offering a set of services to the end user. Based on a tangible user interface approach, control actions are exerted by simple and(More)