Author: cirs-media

R2B2

2a edició del campus PRESUB – robòtica submarina educativa

Del 7 al 11 de juliol va tenir lloc la segona edició del Campus PRESUB a les instal•lacions del Centre de Robòtica Submarina (Parc Científic i Tecnològic), amb la participació d’ una vintena d’estudiants de secundària de diferents centres de les comarques gironines. L’objectiu bàsic d’aquests tallers és la realització d’activitats científico-tecnològiques de caire lúdic que resultin interessants i atractives que permetin incrementar el interès de la societat, i més concretament dels estudiants de secundària, per la tecnologia i que fomentin els valors propis de l’enginyeria. Aquest objectiu és compartit pel Departament d’Arquitectura i Tecnologia de Computadors, pel Consell Social de la Universitat de Girona i pel Patronat de l’Escola Politècnica Superior que donen suport a aquesta edició d’estiu dels tallers de robòtica submarina. La Plataforma Oceànica de Canàries (PLOCAN) també ha donat suport actiu al desenvolupament d’aquesta activitat. D’altra banda, un dels interessos principals del grup de recerca en…

EMRA2014

Presenting PANDORA FP7 and MORPH FP7 projects at EMRA 2014

Our researchers Pere Ridao and Marc Carreras are currently in Rome in the Workshop on EU Funded Marine Robotics and Applications (EMRA 2014). Researchers and users of marine robotic technology are invited to EMRA2014. The workshop shall summarize current EU FP7 marine robotics research, and provide a platform for marine stakeholders to share their current technological challenges. For researchers, EMRA2014 will offer dissemination opportunities for existing work, and highlight new application areas for consideration in future work. For marine research stakeholders, EMRA2014 will offer novel approaches to solve marine challenges, and a platform for directing future research threads. MORPH project will be presented today at 14h by Antonio Pascoal from IST-ISR and PANDORA project will be presented tomorrow in the afternoon by Marc Carreras. Follow ERMA2014 on streaming

euROBOTICS

EU launches world’s largest civilian robotics programme – 240,000 new jobs expected

The European Commission and 180 companies and research organisations (under the umbrella of euRobotics) today launch the world’s largest civilian research and innovation programme in robotics. Covering manufacturing, agriculture, health, transport, civil security and households, the initiative – called SPARC – is the EU’s industrial policy effort to strengthen Europe’s position in the global robotics market (€60 billion a year by 2020). This initiative is expected to create over 240,000 jobs in Europe, and increase Europe’s share of the global market to 42% (a boost of €4 billion per year). The European Commission will invest €700 million and euRobotics €2.1 billion.   The University of Girona, as member of euRobotics, supports this action. ViCOROB has participated in several euRobotics meetings and is part of several projects consortiums in the current actions. We expect to succeed in H2020 as well. Such initiavtives are worth to be well known by society. Local…

3D mapping

Ricard Campos defends his PhD thesis “Surface Reconstruction Methods for Seafloor Modelling”

Underwater maps are an important source of information for the scientific community, since mapping the seafloor is the starting point for underwater exploration. The advance of range scanning methodologies, both using acoustic and optical techniques, enables the mapping of the seabed to attain increasingly larger resolutions. However, all these techniques sample the surface to reconstruct in the form of a point cloud. For the case of areas containing non-trivial 3D relief, achieving a continuous representation from this discrete sampling is a complex task. Surface reconstruction methods try to tackle this problem by recovering a continuous surface representing the object in the form of a mesh of triangles, easing visualization and further processing. This thesis proposes four different strategies to tackle the problem of surface reconstruction from point sets. We start by reviewing the state of the art on surface reconstruction methods. From this survey, we extract some conclusions regarding the…

saprus-II

SPARUS II AUV on their way to euRathlon competition

Last week we received the visit of the teams that are going to compete in euRathlon with our SPARUS II AUVs.   We had to say goodbye to our prototyes that are now being tested in their final destinations! Good luck and thanks to euRathlon team for trusting us!   More info about euRathlon: http://www.eurathlon.eu/ More info about SPARUS II AUV: http://cirs.udg.edu/auvs-technology/auvs/sparus-ii-auv/

TRITON National Funded project experiments in Girona

From Monday 12th to Friday 16th of May, the TRITON national project experiments where held in Girona. The goal of these experiments was to localize an underwater panel with an acoustic ranging sensor. Once the panel is localized, the AUV homes to it and, once closer, using a vision-based system docks in it and performs an autonomous intervention. This intervention is split in two parts, first the vehicle manipulates a valve (open/close) and then connects and disconnects a hot stab. The first day was dedicated to system integration between the Girona500, the arm brought by the UJI team and the cameras from UIB team. Second and third days, the experiments were validated in the CIRS water tank to later move to the Sant Feliu’s harbor in the last days to perform them in a proper environment. All tasks could be achieved on the harbor tests, although some problems with visibility…

Angelos Pdh

Angelos Mallios defends his PhD Thesis “Sonar Scan Matching for Simultaneous Localization and Mapping in Confined Underwater Environments”

This thesis presents the development of a localization and mapping algorithm for an autonomous underwater vehicle (AUV). It is based on probabilistic scan matching of raw sonar scans within a pose-based simultaneous localization and mapping (SLAM) framework.   To address the motion-induced distortions affecting the generation of full sector scans, an extended Kalman filter (EKF) is used to estimate the robot motion during that scan. The filter uses a constant velocity model with acceleration noise for motion prediction.Velocities from Doppler velocity log (DVL) and heading measurements from attitude and heading reference system (AHRS) are fed asynchronously and update the state. The scan is undistorted by compounding the relative robot position in the scan, with the range and bearing measurements of the beams gathered by the sonar. Assuming Gaussian noise, the algorithm is able to estimate the uncertainty of the sonar measurements with respect to a frame located at the center…

phd-galceran

Coverage Path Planning for Autonomous Underwater Vehicles

Doctoral thesis “Coverage Path Planning for Autonomous Underwater Vehicles” By Enric Galceran, PhD student of the Doctoral Program in Technology Supervised by Dr. Marc Carreras Pérez   Abstract At present, a mission to survey the ocean floor with an Autonomous Underwater Vehicle (AUV) is typically planned by selecting a list of waypoints that then the vehicle will automatically navigate through while keeping a safe distance from the bottom. Nonetheless, this approach has major drawbacks: (1) it does not allow the vehicle to safely operate amidst protrusions on the sea floor; (2) when traversing rugged terrain, the vehicle is forced to keep a conservative altitude, limiting applications  requiring close proximity such as photomosaicing; (3) when inspecting 3D, protruding structures from the bottom the vehicle can only perceive them from an overhead viewpoint, resulting in poor data collected from these sites; (4) it does not account for the effect of the terrain…

morph-experiments

7FP European Project MORPH: the next step in the future of underwater robotics

From 7-11th April 2014, a number of autonomous underwater and surface vehicles (robots) from several European institutions will be tested in the Costa Brava area, Spain. The tests will be carried out by 26 scientists from Germany, Portugal, Italy, France, and Spain. The major goal of these field trials is to demonstrate that the MORPH ensemble of vehicles can acquire data to map the sea bottom while operating in a cooperative manner and reacting to environmental conditions. The trials will focus on the execution of an optical and acoustic surveying mission with two surface and two underwater vehicles moving in formation and avoiding on-line detected obstacles. This is a preliminary step towards increasingly more complex cooperative missions over natural rugged terrain.   MORPH (Marine Robotic System of Self-Organising, Logically Linked Physical Nodes) is a four-year project funded by the European Commission that started in 2012, with an overall budget of…