82 resultados para UNMANNED UNDERWATER VEHICLES


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L'objecte del projecte és la definició de les característiques tècniques i econòmiques de les instal·lacions i equips necessaris per a la construcció i realització de les instal·lacions de protecció contra incendis, ventilació i electricitat d'un aparcament de cotxes per tal de protegir els seus ocupants i facilitar les tasques dels bombers i equips de rescat. També es pretén mantenir l'edifici en unes condicions òptimes per al seu ús.

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Es modelitza un vehicle submarí i s'estudien diferents alternatives de control sota linearització sota l'assumpció d'una geometria d'elipsoide prolat, obtenint les gràfiques de l'estat i el control en un interval de temps.

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Disseny de les instal·lacions de climatització i calefacció elèctrica, pneumàtica i de protecció contra incendis, necessàries per poder desenvolupar en el interior d'una nau industrial, l'activitat pròpia d'un taller mecànic de reparació de vehicles. El disseny de la nau industrial no formarà part del PFC, es parteix d'una nau ja existent la qual s'acondicionarà per poder-hi desenvolupar una activitat determinada.

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This paper proposes a pose-based algorithm to solve the full SLAM problem for an autonomous underwater vehicle (AUV), navigating in an unknown and possibly unstructured environment. The technique incorporate probabilistic scan matching with range scans gathered from a mechanical scanning imaging sonar (MSIS) and the robot dead-reckoning displacements estimated from a Doppler velocity log (DVL) and a motion reference unit (MRU). The proposed method utilizes two extended Kalman filters (EKF). The first, estimates the local path travelled by the robot while grabbing the scan as well as its uncertainty and provides position estimates for correcting the distortions that the vehicle motion produces in the acoustic images. The second is an augment state EKF that estimates and keeps the registered scans poses. The raw data from the sensors are processed and fused in-line. No priory structural information or initial pose are considered. The algorithm has been tested on an AUV guided along a 600 m path within a marina environment, showing the viability of the proposed approach

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Behavior-based navigation of autonomous vehicles requires the recognition of the navigable areas and the potential obstacles. In this paper we describe a model-based objects recognition system which is part of an image interpretation system intended to assist the navigation of autonomous vehicles that operate in industrial environments. The recognition system integrates color, shape and texture information together with the location of the vanishing point. The recognition process starts from some prior scene knowledge, that is, a generic model of the expected scene and the potential objects. The recognition system constitutes an approach where different low-level vision techniques extract a multitude of image descriptors which are then analyzed using a rule-based reasoning system to interpret the image content. This system has been implemented using a rule-based cooperative expert system

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S'ha optat per la utilització de la tecnologia .NET per desenvolupar un projecte que s'instal·larà a tots els centres de producció del Grup Lecta, la funció més important del qual serà el control d'entrades/sortides i pesatge dels vehicles que abasteixen, principalment de matèria primera així com d'altres productes, a cadascuna de les fàbriques del grup.

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This paper examines the factors that have influenced the energy intensity of the Spanish road freight transport of heavy goods vehicles over the period 1996–2012. This article aims to contribute to a better understanding of the factors behind the energy intensity change of road freight and also to inform the design of measures to improve energy efficiency in road freight transport. The paper uses both annual single-period and chained multi-period multiplicative LMDI-II decomposition analysis. The results suggest that the decrease in the energy intensity of Spanish road freight in the period is explained by the change in the real energy intensity index (lower energy consumption per tonne-kilometre transported), which is partially offset by the behaviour of the structural index (greater share in freight transport of those commodities the transportation of which is more energy intensive). The change in energy intensity is analysed in more depth by quantifying the contribution of each commodity through the attribution of changes in Divisia indices.