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Business and mission critical real-time systems need to be fully predictable, in order that their behavior is known before deployment, even in the presence of faults. The Open Ravenscar Real Time Kernel (ORK) is a small size with reduced complexity kernel designed to be used in this type of applications. This kernel was implemented to be fully compliant(More)
This paper proposes an alternative environment mapping method for accurate robotic navigation based on 3D information. Typical techniques for 3D mapping using occupancy grid require intensive computational workloads to both build and store the map. We introduce an occupancy-elevation grid (OEG) mapping technique, which is a discrete mapping approach where(More)
Xception is an automated and comprehensive fault injection and robustness testing environment that enables accurate and flexible V&V (verification & validation) and evaluation of mission and business critical computer systems and computer components, with particular emphasis to software components. In this paper we focus on the new robustness testing(More)
IDeM-MRS is a cooperation formalism for multi-robot systems to efficiently solve tasks in indoors environments. This formalism is based on learning social models of real individuals and it coordinates the group allowing knowledge assimilation and accommodation through experiences exchange. Some issues are particularly investigated, such as the realist(More)
This paper proposes an alternative environment mapping method for accurate robotic navigation based on 3D information. Typical techniques for 3D mapping using occupancy grid require intensive computational workloads to both build and store the map. We introduce an Occupancy-Elevation Grid (OEG) mapping based on visual range data, which is a discrete mapping(More)
The ability of a mobile robot to navigate in unknown and dynamic environments depends on some issues, like localization, sensors data processing (or mapping) and decision making. According to the environment characteristics, the robot needs to make different decisions, aiming to finish its mission, to preserve its physical integrity and the environment(More)