Onofre Trindade Júnior

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This paper presents the technical details of Tiriba, which is a small autonomous electrical airplane used into pre-defined missions and applications such as agricultural and environmental monitoring. This class of aircrafts has taken advantage of the miniaturization of electronic components and modules such as GPS receivers, digital cameras, wireless(More)
This paper presents ProLiCES, an approach for the development of safety-critical embedded applications and its usage to develop a product line for unmanned aerial vehicles (UAV). The motivation of ProLiCES emerged after the development of Tiriba, a family of small, electric-powered unmanned aircraft. Most software artifacts produced for Tiriba required(More)
Safety critical systems (e.g., an avionics control system for safe flight) are often required to achieve certification under pre-established standards (e.g., DO-178B for software considerations in airborne systems and equipment certification). We have been working with our industrial partner for the last three years to develop product line assets for their(More)
Service-Oriented Architecture (SOA) are having a widespread use in enterprise computing applications, being Web services the most common implementation. The use of SOA has also been proposed for embedded systems, although very little could be found in the literature on the use of SOA for SafetyCritical Embedded Systems. This paper discusses the use of SOA(More)
Service-Oriented Architecture (SOA) are having a widespread use in enterprise computing applications, being Web services the most common implementation. The use of SOA has also been proposed for embedded systems, although very little could be found in the literature on the use of SOA for Safety-Critical Embedded Systems. This paper discusses the use of SOA(More)
The present paper applies a heuristic and genetic algorithms approaches to the path planning problem for Unmanned Aerial Vehicles (UAVs), during an emergency landing, without putting at risk people and properties. The path re-planning can be caused by critical situations such as equipment failures or extreme environmental events, which lead the current UAV(More)
The development of safety-critical embedded systems presents some demands, such as low-level communication with hardware devices, uninterrupted operation in hostile environments and some restrictions such as memory size, processing power and, particularly, low power consumption. These systems require specific development methodologies, targeting the(More)
The present paper describes an embedded system architecture, based on genetic algorithms, aiming safety mission execution by Unmanned Aerial Vehicles (UAVs). A two-dimensional non-convex environment is considered since obstacle avoidance happens. The embedded system integrates the Mission Oriented Sensor Array (MOSA) and In-Flight Awareness (IFA) systems,(More)
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