Graphic summary
  • Show / hide key
  • Information


Scientific and technological production
  •  

1 to 50 of 320 results
  • Metrology for essential climate variables (ENV58 MeteoMet2)

     Del Rio Fernandez, Joaquin
    Competitive project

     Share

  • Access to the full text
    Hybrid time synchronization for Underwater Sensor Networks  Open access

     Pallares Valls, Oriol; Bouvet, Pierre-Jean; Del Rio Fernandez, Joaquin
    Symposium on Measurements of Electrical Quantities
    p. 166-170
    Presentation's date: 2014-09-15
    Presentation of work at congresses

    Read the abstract Read the abstract Access to the full text Access to the full text Open in new window  Share Reference managers Reference managers Open in new window

    Time synchronization is an important part of distributed applications over a sensor network. In this work we investigate time synchronization problems over a shallow UWSN, taking into account all main communication challenges of the water channel and observing its behavior in simulation and real tests. It is proposed an hybrid frame based time sinchronization using both, LFM and OFDM communication with channel impulse response equalization. Simulation results show how Hybrid synchronization outperforms existing synchronization protocols and how these results sults are affected in real water tests.

  • Systematic quality control for long term ocean observations and applications

     Toma, Daniel Mihai; Garcia Benadí, Albert; Mànuel González, Bernat-Joan; Del Rio Fernandez, Joaquin
    International workshop on Metrology for Meteorology and Climate
    p. 74
    Presentation's date: 2014-09-16
    Presentation of work at congresses

    Read the abstract Read the abstract  Share Reference managers Reference managers Open in new window

    The growing needs for real-time processing of data and the sheer quantity of data produced by these observatories means that automated Quality Assurance/Quality Control (QA/QC) is necessary to ensure that the collected data has the quality required for its purpose. This paper demonstrates the use of a well-defined community adopted QA/QC tests and automated data quality assessments to provide a continuous scale of data quality, the capture of information about the system provenance, sensor and data processing history.

  • Access to the full text
    Experimental validation and modeling of plucked piezoelectric for underwater energy harvesting system  Open access

     Toma, Daniel Mihai; Del Rio Fernandez, Joaquin; Carbonell Ventura, Montserrat; Bernet Piquet, Ferran; Miquel Masalles, Jaume
    Symposium on Measurements of Electrical Quantities
    p. 45-49
    Presentation's date: 2014-09-16
    Presentation of work at congresses

    Read the abstract Read the abstract Access to the full text Access to the full text Open in new window  Share Reference managers Reference managers Open in new window

    Underwater wireless sensing systems are envisioned for stand-alone applications and as an addition to cabled observatory systems such as the OBSEA marine observatory. Therefore, this work presents a solution on how to generate power for marine wireless sensors using underwater motion energy. In this pare it is described a prototype based on a Bristol cylinder which can generate electrical voltage using piezoelectric bimorphs. Collecting water motion energy using piezoelectric energy harvesting is particularly difficult due to the mismatch between the low frequency of water kinetics and the high-frequency requirements of piezoelectric transducers. Therefore, to achieve frequency up-conversion we propose the use of the plucking technique applied to propose the use of the plucking technique applied to piezoelectric energy harvester. Experimental results show that the proposed energy harvester achieves a maximum power density of 350µW/cm3.

  • The OBSEA Citizen Science Project

     Aguzzi, Jacopo; Del Rio Fernandez, Joaquin
    Barcelona Citizen Science Day
    Presentation's date: 2014-06-11
    Presentation of work at congresses

    Read the abstract Read the abstract View View Open in new window  Share Reference managers Reference managers Open in new window

    Multiparametric seafloor observatories connected to shore for real-time data transmission represent a frontier in marine technology with important societal implications for environmental monitoring and conservation. Here, we present a Citizen Science project with the OBSEA video-observatory of Vilanova i la Gertrú at 20 m depth. A biodiversity survey is going to be conducted by citizens (students and divers), helping to classify and count fishes within different digital products (time-lapse images and footages). The objective is to track fish assemblage changes in relation to meteorology and species intrinsic day-night and seasonal behaviors. Accordingly, we implemented a protocol for the web-based species identification supervised by scientists, in order to evaluate the different performances for each group. Outputs are being presented at the CosmoCaixa Exposition ¿Mediterraneo¿ (https://www.educaixa.com/microsites/Mediterrani/laboratorio_submarino/)

  • NeXOS objectives in multi-platform underwater passive acoustics

     Delory, Eric; Toma, Daniel Mihai; Del Rio Fernandez, Joaquin; Ruiz, Pablo; Corradino, Luigi; Brault, Patrice; Fiquet, Frédéric
    International Conference and Exhibition on Underwater Acoustics
    p. 208
    Presentation's date: 2014-06-24
    Presentation of work at congresses

    Read the abstract Read the abstract View View Open in new window  Share Reference managers Reference managers Open in new window

    The objective of the NeXOS project is to develop cost-effective, innovative and compact integrated multifunctional sensor systems in ocean optics, ocean passive acoustics and for an Ecosystem Approach to Fisheries (EAF), which can be deployed from mobile and fixed ocean observing platforms. Resulting downstream services will contribute to the GEOSS, the Marine Strategy Framework Directive (MSFD) and the Common Fisheries Policy of the European Union. The development of innovative hydrophones will focus on the pre and post-processing of acoustic information and improved transducer integration, reducing size and overall procurement and operations cost while increasing functionality. An important part of the effort will focus on the need for greater dynamic range and the integration on autonomous platforms, such as gliders and profilers. Embedded processing will be reconfigurable, allowing the monitoring of MSFD Good Environmental Status descriptors 1 (Biodiversity) and 11 (Underwater Noise) as minimal requirements. The first phase of the project consists in interacting with scientific communities and the industry in order to narrow down initial requirements and possibly extend the planned functionalities to new applications. The presentation will provide an overview of the project and an update on current progress, with a focus on unmanned vehicles and mobile platforms more generally. NeXOS is co-funded by the European Commission 7th Framework Programme, the Ocean of Tomorrow 2013.

  • Access to the full text
    Automated data quality assurance using OGC sensor web enablement frameworks for marine observatories  Open access

     Manuel Lazaro, Antonio; Carreras Pons, Normandino; Bghiel, Ikram; Hidalgo Castro, Alberto; Del Rio Fernandez, Joaquin; Toma, Daniel Mihai
    European Geosciences Union General Assembly
    Presentation's date: 2014-05-02
    Presentation of work at congresses

    Access to the full text Access to the full text Open in new window  Share Reference managers Reference managers Open in new window

  • Development of a wireless seismic array for volcano monitoring

     Moure, David; Toma, Daniel Mihai; Manuel Lazaro, Antonio; Del Rio Fernandez, Joaquin; Carreras Pons, Normandino; Blanco, María José
    European Geosciences Union General Assembly
    Presentation's date: 2014-05-02
    Presentation of work at congresses

    Read the abstract Read the abstract View View Open in new window  Share Reference managers Reference managers Open in new window

    Volcano monitoring is mainly based on three sciences: seismology, geodesy and geochemistry. Seismic arrays are used to locate the seismic source, based on analysis of signals recorded by each seismometer. The most important advantages of arrays over classical seismic networks are: painless deployment, no major infrastructures needed, able to provide an approximate location of a signal that is not feasible by a seismic network. In this paper the design of a low-power wireless array is presented. All sensors transmit acquired data to a central node which is capable to calculate the possible location of the seismic source in real-time. The reliability of those locations depends, among other parameters (number of sensors and geometrical distribution), on precision of time synchronization between the nodes. To achieve the necessary precision, the wireless seismic array implements a time synchronization protocol based on the IEEE1588 protocol, which ensures clock synchronization between nodes better than a microsecond, therefore, signal correlation between sensors is achieved correlating the signals from all the sensors. The ultimate challenge would be that the central node receives data from all the seismometers locating the seismic source, only transmitting the result, which dramatically reduces data traffic. Often, active volcano areas are located far from inhabited areas and data transmission options are limited. In situ calculation is crucial in order to reduce data volume transmission generated by the seismic array.

  • Sistemas inalámbricos para la monitorización continua del comportamiento de especies marinas

     Sarria Gandul, David
    Department of Electronic Engineering, Universitat Politècnica de Catalunya
    Theses

    Read the abstract Read the abstract  Share Reference managers Reference managers Open in new window

    En este trabajo de Tesis se proponen y evalúan nuevos métodos para la monitorización de especies marinas, empleando tecnologías ópticas, por radiofrecuencia y acústicas para estudios biológicos en laboratorio (acuarios de experimentación) y en espacios abiertos.Se ha realizado un estudio de las tecnologías empleadas para la monitorización de especies, presentado y analizado las ventajas e inconvenientes de cada una de ellas. Aunque la tecnología óptica permite el estudio de especies sin contacto (no invasiva), requiere un correcto posicionamiento de sus elementos y está limitada por el alcance, las condiciones cambiantes del medio y la bioincrustación. Los dispositivos de radiofrecuencia permiten el estudio de especies que emergen a la superficie, o las que habitan en entornos de agua dulce; en el entorno marino esta tecnología se encuentra restringida debido a la gran absorción que sufren las señales electromagnéticas en ese medio. Los dispositivos acústicos facilitan la monitorización de especies en espacios abiertos de gran extensión, permitiendo su localización y seguimiento; sin embargo, esta tecnología presenta una gran sensibilidad a diferentes factores que impone el medio marino como el multicamino, la variación temporal y espacial del canal o el efecto Doppler, entre otros.La investigación se ha estructurado en tres partes donde, utilizando las tecnologías citadas, se han propuesto, diseñado y validado con éxito diferentes sistemas de medida. En primer lugar, se han evaluado los detectores de infrarrojos y las cámaras de bajo coste para la monitorización de especies en laboratorio. La propuesta contempla diferentes soluciones que independizan el sistema de las dimensiones del acuario, permitiendo su ampliación y configuración automática. Así mismo, mediante los algoritmos de procesado programados se han reducido las detecciones erróneas causadas por alteraciones de la calidad del agua (turbiedad), la presencia de partículas que obstruyen la línea de vista entre el par emisor-receptor y el deterioro de los transductores. En la segunda parte del trabajo de Tesis se han propuesto soluciones aplicando la tecnología RFID (Radio Frequency IDentification), mediante el diseño y validación experimental de un sistema de localización y seguimiento de especies en acuarios de experimentación. La propuesta realizada plantea mecanismos que independizan el sistema del tamaño del acuario, y permiten la autoconfiguración de sus componentes. Los resultados obtenidos han demostrado la validez de esta tecnología para localizar y seguir la trayectoria de especies bentónicas en espacios reducidos y con una resolución de varios centímetros.Finalmente, se ha evaluado el rendimiento de un equipo acústico comercial en mar abierto, a baja profundidad y en las proximidades de un entorno con arrecifes artificiales, donde ocurren complejas y numerosas reflexiones. Debido a la falta de estándares, la incompatibilidad entre fabricantes y con objeto de mejorar los resultados anteriores, en esta parte de la investigación se ha propuesto, construido y evaluado un prototipo de transductor acústico y una plataforma abierta de comunicaciones OFDM (Ortogonal Frequency Division Multiplexing), acercando la tendencia y los avances actuales en materia de comunicaciones acústicas a los sistemas de monitorización de especies marinas.

  • Experimental validation of a plucked piezoelectric for underwater energy harvesting

     Toma, Daniel Mihai; Carbonell Ventura, Montserrat; Del Rio Fernandez, Joaquin; Bernet Piquet, Ferran; Mànuel-González, Bernat; Miquel Masalles, Jaume; Manuel Lazaro, Antonio
    Workshop in field of Nonlinear and Multiscale Dynamics of Smart Materials in Energy Harvesting Workshop
    Presentation's date: 2014-02-17
    Presentation of work at congresses

     Share Reference managers Reference managers Open in new window

  • Cursos FOAP-2013

     Del Rio Fernandez, Joaquin
    Competitive project

     Share

  • Next generation, Cost-effective, Compact, Multifunctional Web Enabled

     Del Rio Fernandez, Joaquin
    Competitive project

     Share

  • Western Mediterranean Observatory OBSEA updates. 2nd junction box deployment, Citizen Science Project and others

     Del Rio Fernandez, Joaquin; Toma, Daniel Mihai; Manuel Lazaro, Antonio; Olive Duran, Joaquim; Nogueras Cervera, Marc; Cadena Muñoz, Javier
    EMSO Conference
    p. 25
    Presentation's date: 2013-10-14
    Presentation of work at congresses

    Read the abstract Read the abstract View View Open in new window  Share Reference managers Reference managers Open in new window

    The expandable SEAfloor OBservatory (OBSEA; www.obsea.es) is a multiparametric cabled video-platform located in shalow waters at 20 m depth 4 km offshore Vilanova i la Geltrú (Catalonia, Spain) in front of an artificial reef and , interconnected to the coast by an energy and communication mixed cable. Obsea has two permanent sampling sites: on the surface (buoy) from 2011, and another one at the seafloor (cabled observatories) deployed in 2009. A new cabled and very light and movable junction box connected to the first one will be deployed during 2013. It will expand research and test capabilities to the observatory. OBSEA enables remote, long-term, and continuous surveys of the local ecosystem by acquiring synchronous multiparametric habitat data and bio-data with the following sensors: Conductivity- Temperature-Depth (CTD) sensors for salinity, temperature, pressure and pH; Acoustic Doppler Current Profilers (ADCP) for current speed and direction, including a turbidity meter and a fluorometer (for the determination of chlorophyll concentration); a hydrophone; a seismometer, a video camera for automated image analysis in relation to species classification and tracking and finally a buoy in the surface with meteorological station and video camera. Images collected from a cabled video-observatory were utilized to examine habitat utilization by coastal fishes. Hidrophone data is used to bioacoustics and ambient noise studies. Last deployments at Obsea: A new very low cost, low size and low power consumption OFDM (Orthogonal Frequency Division Multiplexing) transmitters for underwater sensor networks communication research has been installed at Obsea. A new specific system for the measurement of marine pH and atmospheric CO2 for the evaluation of ocean acidification. An underwater cabled seismometer implementing the IEEE Std 1588 have been developed and validated to work in network systems such as the OBSEA. Integrated with land-based networks by transmitting real- time data to Institut Geològic de Catalunya.

  • Access to the full text
    Long term monitoring of day-night fish assemblage at OBSEA  Open access

     Santamaria Garcia, Guillermo; Aguzzi, Jacopo; Sbragaglia, Valerio; Del Rio Fernandez, Joaquin; Nogueras Cervera, Marc; Manuel Lazaro, Antonio; Sardá Amills, Francesc
    International Workshop on Marine Technology
    p. 58-60
    Presentation's date: 2013-10-09
    Presentation of work at congresses

    Read the abstract Read the abstract Access to the full text Access to the full text Open in new window  Share Reference managers Reference managers Open in new window

    High frequency monitoring and the reducing of disturbance of sampling activities have a vital importance in the study of fish communities. The aim of this paper is to describe temporal patterns in habitat utilization by a coastal fish assemblage throughout the year 2012. A high frequency long term photo identification monitoring has been carried out with this objective. At about 63.000 individuals representing 28 species were identified, suggesting the occurrence of different day-night rhythms among them. Future comparisons with physical parameters will be developed to get a better understanding of their movement patterns.

  • Access to the full text
    OBSEA¿s seismic station joins the IGC network  Open access

     Del Rio Fernandez, Joaquin; Toma, Daniel Mihai; Cadena Muñoz, Javier; Segalas Coral, Jordi; Prat Farran, Joana d'Arc; Jara Salvador, José Antonio; Frontera Genovard, Tànit; Olivera Lloret, Carme; Goula Suriñach, Xavier
    International Workshop on Marine Technology
    p. 161-165
    Presentation's date: 2013-10-10
    Presentation of work at congresses

    Read the abstract Read the abstract Access to the full text Access to the full text Open in new window  Share Reference managers Reference managers Open in new window

    A cabled system for collecting real-time seismic data has been developed and was deployed in spring of 2011. Nowadays (2013) this seismic station is being part of the Catalan Seismic Network managed by the IGC (Institut Geològic de Catalunya). The seismic system is part of Western Mediterranean Cabled Observatory, OBSEA (www.obsea.es). A key component in this cabled system is the use of IEEE 1588 standard that serves as a clock synchronization mechanism for the seismometer with Universal Time Coordinates (UTC) clock. This paper presents the seismic measurements results of the broadband seismometer. The seismic data are time stamped using a UTC clock which is traceable to within the desired level of precision of sub milliseconds through IEEE 1588 protocol.

    A cabled system for collecting real-time seismic data has been developed and was deployed in spring of 2011. Nowadays (2013) this seismic station is being part of the Catalan Seismic Network managed by the IGC (Institut Geològic de Catalunya). The seismic system is part of Western Mediterranean Cabled Observatory, OBSEA (www.obsea.es). A key component in this cabled system is the use of IEEE 1588 standard that serves as a clock synchronization mechanism for the seismometer with Universal Time Coordinates (UTC) clock. This paper presents the seismic measurements results of the broadband seismometer. The seismic data are time stamped using a UTC clock which is traceable to within the desired level of precision of sub milliseconds through IEEE 1588 protocol.

  • Access to the full text
    Interoperability developments for next generation multifunctional ocean sensor systems in NeXOS  Open access

     Toma, Daniel Mihai; Del Rio Fernandez, Joaquin; Manuel Lazaro, Antonio; Moreno Lupiañez, Manuel; Bröring, Arne; Pearlman, Jay S; Delory, Eric
    International Workshop on Marine Technology
    p. 166-168
    Presentation's date: 2013-10-10
    Presentation of work at congresses

    Read the abstract Read the abstract Access to the full text Access to the full text Open in new window  Share Reference managers Reference managers Open in new window

    Sensor technology is rapidly advancing, enabling smaller and less expensive instruments to monitor Earth¿s environment. It is expected that many more kinds and quantities of networked environmental sensors will be deployed in coming years. This work presents an approach for the smart configuration and integration of marine sensors into an interoperable Sensor Web infrastructure such that the overall life cycle cost of sensors and observing systems is reduced and data has greater societal and scientific value. In this paper some of the objectives related to sensor interface included in the project proposal NeXOS (Next generation, Cost-effective, Compact, Multifunctional Web Enabled Ocean Sensor Systems Empowering Marine, Maritime and Fisheries Management), under the European Commission¿s Ocean of Tomorrow call FP7- OCEAN-2013.2, are presented.

    Sensor technology is rapidly advancing, enabling smaller and less expensive instruments to monitor Earth’s environment. It is expected that many more kinds and quantities of networked environmental sensors will be deployed in coming years. This work presents an approach for the smart configuration and integration of marine sensors into an interoperable Sensor Web infrastructure such that the overall life cycle cost of sensors and observing systems is reduced and data has greater societal and scientific value. In this paper some of the objectives related to sensor interface included in the project proposal NeXOS (Next generation, Cost-effective, Compact, Multifunctional Web Enabled Ocean Sensor Systems Empowering Marine, Maritime and Fisheries Management), under the European Commission’s Ocean of Tomorrow call FP7- OCEAN-2013.2, are presented.

  • Access to the full text
    Preliminary results of the OBSEA Citizen Science project  Open access

     Bghiel, Ikram; Del Rio Fernandez, Joaquin; Hidalgo Castro, Alberto; Toma, Daniel Mihai; Manuel Lazaro, Antonio; Aguzzi, Jacopo
    International Workshop on Marine Technology
    p. 98-100
    Presentation's date: 2013-10-09
    Presentation of work at congresses

    Read the abstract Read the abstract Access to the full text Access to the full text Open in new window  Share Reference managers Reference managers Open in new window

    In this paper, the Citizen Science experience with the OBSEA costal-cabled video observatory, deployed in western Mediterranean [1] is presented. A local biodiversity survey is being conducted by citizens as generic non-experienced users, high school students, and amateur divers helping to identify and classify fishes appearing within different digital products such as time-lapse images and footages. Accordingly, we implemented a protocol for the web-based species identification supervised by scientists, in order to evaluate the different performances for each group.

  • Latest contributions to Guanay II

     Masmitja Rusiñol, Ivan; Gonzalez Agudelo, Julian; Gomariz Castro, Spartacus; Prat Tasias, Jordi; Del Rio Fernandez, Joaquin
    International Workshop on Marine Technology
    Presentation's date: 2013-10-10
    Presentation of work at congresses

    Read the abstract Read the abstract View View Open in new window  Share Reference managers Reference managers Open in new window

    This work presents the last contributions incorporated into AUV Guanay II, these have been emerged after some test fields, tests in the swimming pool and in the ocean, such as Mar Menor and Mar Mediterrani. These improvements are: First in the communication and control systems, for a more fluid communication a WiFi system has been incorporated, this allows access to PC-104 of Guanay II without disassemble it; second, a new RF system to connect and disconnect the electronics and a new method to charge the batteries have been designed; third, a new driver for lateral motor has been developed that allows control the motor in both directions; then the software of the vehicle and the base station has been upgraded to obtain a major and better user control; finally, a new ballast system has been incorporated. All of new contributions have been tested in the laboratory and in the field.

  • Access to the full text
    Good practice guide for C calculation  Open access

     Garcia Benadí, Albert; Cadena Muñoz, Francisco Javier; Sarria Gandul, David; Sitjar Cañellas, Rafael; Del Rio Fernandez, Joaquin
    International Workshop on Marine Technology
    p. 61-66
    Presentation's date: 2013-10-11
    Presentation of work at congresses

    Read the abstract Read the abstract Access to the full text Access to the full text Open in new window  Share Reference managers Reference managers Open in new window

    The aim of this paper is to detail the procedure to calculate the C parameter in the spreading factor. This factor is the most important because is the main reason of the pressure level fall. Calculating the C parameter with more accuracy it provides better information of the environment.

    The aim of this paper is to detail the procedure to calculate the C parameter in the spreading factor. This factor is the most important because is the main reason of the pressure level fall. Calculating the C parameter with more accuracy it provides better information of the environment

  • Operational multiparameter subsea observation platforms

     Manuel Lazaro, Antonio; Molino Minero Re, Erik; Del Rio Fernandez, Joaquin; Nogueras Cervera, Marc
    Date of publication: 2013-10
    Book chapter

    Read the abstract Read the abstract View View Open in new window  Share Reference managers Reference managers Open in new window

    New trends in experimental marine research require long term monitoring of the seas and oceans with higher data resolutions than those which can be obtained from oceanographic vessels, buoys or autonomous se nsors. Subsea observation platforms are the response to these needs. These infras tructures are complex systems, precisely designed to ensure they are flexible, robust and stable and also capable of managing a wide range of sensors and instruments in r eal time with minimum maintenance. Some of the most commonly used instruments fo r ocean research are based on optical and image sensors, and in this chapter we provi de a review of the key components of a subsea observatory and the main challenges facing optical and image sensors used in multidisciplinary and multiparameter underwater observatories.

    Postprint (author’s final draft)

  • Fixed Point Open Ocean Observatories Network

     Del Rio Fernandez, Joaquin
    Competitive project

     Share

  • Noise management in marine protected areas: shipping noise footprints from AIS data

     van der Schaar, Mike Connor Roger Malcolm; Del Rio Fernandez, Joaquin; Houégnigan, Ludwig; Andre Sanchez, Michel
    International Conference on the effects of noise on aquatic life
    p. 170
    Presentation's date: 2013-08-14
    Presentation of work at congresses

    Read the abstract Read the abstract  Share Reference managers Reference managers Open in new window

    The EU, through the FP7 framework, has been funding various projects (e.g. SILENV, AQUO and SONIC) to obtain more detailed information on acoustic source levels from ships as well as to find ways to reduce their impact on the marine environment. Knowledge about source levels is important to understand a possible increase of background noise in the world oceans, but by itself it is not sufficient for noise management around a marine protected area. Depending on environmental conditions, propagation losses will be affected by bathymetry, sediment nature and seasons, resulting in changing effects from a same ship. To manage and decide on acceptable shipping sound levels in a MPA, acoustic modeling allows estimating cumulative sound exposure levels experienced by the animals at any given time, thus determining the number of vessels and their distance to the area favourable to maintain a good environmental status. Over the last three years, acoustic measurements recorded at the OBSEA shallow water cabled platform (Barcelona, Spain) have been stored together with AIS information. This data was used to demonstrate and validate the footprints of different ships in the area. Additionally, footprints of ships navigating through the Barentsz Sea are presented using one year of AIS data and source level estimations from literature

  • Measuring system and power management of the Guanay II AUV

     Masmitja Rusiñol, Ivan; Gonzalez Agudelo, Julian; Masmitjà, Gerard; Gomariz Castro, Spartacus; Del Rio Fernandez, Joaquin
    Symposium on Measurements of Electrical Quantities
    Presentation's date: 2013-07-18
    Presentation of work at congresses

     Share Reference managers Reference managers Open in new window

  • Access to the full text
    Precision timing in TDMA - based Wireless Sensor Network through IEEE 1588 standard  Open access

     Toma, Daniel Mihai; Del Rio Fernandez, Joaquin; Manuel Lazaro, Antonio; Gomariz Castro, Spartacus; Carreras Pons, Normandino
    IMEKO World Congress
    p. 683-686
    Presentation's date: 2013-07-18
    Presentation of work at congresses

    Read the abstract Read the abstract Access to the full text Access to the full text Open in new window  Share Reference managers Reference managers Open in new window

    This paper proposes an energy-efficient time synchronization scheme for Wireless Sensor Networks (WSNs) based on the IEEE 1588 standard. Although a number of methods have been studied for time synchronization of WSNs, some applications require high precision time synchronization with very low power consumption. This paper presents a reduced implementation of IEEE 1588 precision time protocol (PTP) for WSNs. Within the proposed synchronization approach, a sensor node is synchronized using the timing message generated by a master node synchronized with GPS. This paper also presents experiments to evaluate the performance of the precision time synchronization of a slave-master pair of sensor nodes.

    This paper proposes an energy-efficient time synchronization scheme for Wireless Sensor Networks(WSNs) based on the IEEE 1588 standard. Although a number of methods have been studied for time synchronization of WSNs, some applications require high precision time synchronization with very low power consumption. This paper presents a reduced implementation of IEEE 1588 precision time protocol (PTP) for WSNs. Within the proposed synchronization approach, a sensor node is synchronized using the timing message generated by a master node synchronized with GPS. This paper also presents experiments to evaluate the performance of the precision time synchronization of a slave-master pair of sensor nodes.

  • Good Practice Guide for calibrating a hydrophone "in situ"

     Garcia Benadí, Albert; Cadena Muñoz, Francisco Javier; Del Rio Fernandez, Joaquin; Manuel Lazaro, Antonio
    Symposium on Measurements of Electrical Quantities
    p. 16
    Presentation's date: 2013-07-19
    Presentation of work at congresses

    Read the abstract Read the abstract  Share Reference managers Reference managers Open in new window

    The aim of this paper is to provide the basis for the calibration of a hydrophone "in situ", thus assigning a value of uncertainty, which may be high, but according to requirements may be sufficient

  • Access to the full text
    Balance de incertidumbres en la calibración "in situ" de un hidrófono  Open access

     Garcia Benadí, Albert; Cadena Muñoz, Francisco Javier; Del Rio Fernandez, Joaquin; Roset Juan, Francesc Xavier; Manuel Lazaro, Antonio
    Congreso Español de Metrología
    p. 19
    Presentation's date: 2013-06-14
    Presentation of work at congresses

    Read the abstract Read the abstract Access to the full text Access to the full text Open in new window  Share Reference managers Reference managers Open in new window

    El objetivo de este artículo es poner en relieve la posibilidad de la calibración de los hidrófonos en su medio. Con esta finalidad se detallaran los parámetros a tener en cuenta, se propondrán sistemáticas de obtención de los parámetros y se estimarán las contribuciones a la incertidumbre de cada una de ellas mediante la asignación de la distribución de probabilidad adecuada en cada caso.

    El objetivo de este artículo es poner en relieve la posibilidad de la calibración de los hidrófonos en su medio. Con esta finalidad se detallaran los parámetros a tener en cuenta, se propondrán sistemáticas de obtención de los parámetros y se estimarán las contribuciones a la incertidumbre de cada una de ellas mediante la asignación de la distribución de probabilidad adecuada en cada caso.

  • Access to the full text
    Simulations of a moored power cable at OBSEA platform  Open access

     Prat Farran, Joana d'Arc; Del Rio Fernandez, Joaquin; Massana Hugas, Immaculada
    OCEANS MTS/IEEE
    Presentation's date: 2013-06-12
    Presentation of work at congresses

    Read the abstract Read the abstract Access to the full text Access to the full text Open in new window  Share Reference managers Reference managers Open in new window

    New green energy sources deployed at sea in mobile platforms use power cables in order to transport green energy at sea surface to the bottom. Theses power cables are exposed to the dynamic behaviour of the platform movements due to waves, currents and wind. OBSEA is a seafloor cabled observatory at 20 m depth in front of Vilanova, in Catalan coast. OBSEA captures data in real time like current, waves and wind among others. In this paper, a model of a moored power cable installed at OBSEA is studied. The study is focused on the trajectory, tensions and deformation or curvature of cables about 0.1 m diameter and under real conditions collected from OBSEA sensors. Simulations are done with OrcaFlex 9.3 software (license N1594). This software allows to model underwater structures and cables.

    New green energy sources deployed at sea in mobile platforms use power cables in order to transport green energy at sea surface to the bottom. Theses power cables are exposed to the dynamic behaviour of the platform movements due to waves, currents and wind. OBSEA is a seafloor cabled observatory at 20 m depth in front of Vilanova, in Catalan coast. OBSEA captures data in real time like current, waves and wind among others. In this paper, a model of a moored power cable installed at OBSEA is studied. The study is focused on the trajectory, tensions and deformation or curvature of cables about 0.1 m diameter and under real conditions collected from OBSEA sensors. Simulations are done with OrcaFlex 9.3 software (license N1594). This software allows to model underwater structures and cables.

  • Mathematical model of the Guanay II AUV

     Gonzalez Agudelo, Julian; Masmitja Rusiñol, Ivan; Gomariz Castro, Spartacus; Batlle Arnau, Carles; Sarria Gandul, David; Del Rio Fernandez, Joaquin
    OCEANS MTS/IEEE
    Presentation's date: 2013-06-12
    Presentation of work at congresses

    Read the abstract Read the abstract View View Open in new window  Share Reference managers Reference managers Open in new window

    This work presents a mathematical study to obtain the coefficients that define the dynamics of an autonomous underwater vehicle (AUV), the Guanay II vehicle, with 3 degrees of freedom. This dynamics is given by several forces and moments (hydrostatic, hydrodynamic, added masses and propellers), which largely depend on the vehicle geometry. The Guanay II AUV has been designed following a Myring profile, which improves the hydrodynamics of the vehicle but also yields a tractable mathematical model. The model describes the geometric characteristics of the vehicle and the disposition of the thrusters and has backward movement capacity. The model has been tested by means of simulations and a prototype has been validated in real navigation.

    This work presents a mathematical study to obtain the coefficients that define the dynamics of an autonomous underwater vehicle (AUV), the Guanay II vehicle, with 3 degrees of freedom. This dynamics is given by several forces and moments (hydrostatic, hydrodynamic, added masses and propellers), which largely depend on the vehicle geometry. The Guanay II AUV has been designed following a Myring profile,which improves the hydrodynamics of the vehicle but also yields a tractable mathematical model. The model describes the geometric characteristics of the vehicle and the disposition of the thrusters and has backward movement capacity. The model has been tested by means of simulations and a prototype has been validated in real navigation.

  • Access to the full text
    Preliminary OFDM based acoustic communication for underwater sensor networks synchronization  Open access

     Pallares Valls, Oriol; Sarria Gandul, David; Viñolo Monzoncillo, Carlos; Del Rio Fernandez, Joaquin; Manuel Lazaro, Antonio
    OCEANS MTS/IEEE
    Presentation's date: 2013-06-12
    Presentation of work at congresses

    Read the abstract Read the abstract Access to the full text Access to the full text Open in new window  Share Reference managers Reference managers Open in new window

    This work presents a first approach to wireless underwater sensor networks UWSN time synchronization, using OFDM (Orthogonal Frequency Division Multiplexing) acoustic communication and time reference served by a synchronization protocol. This synchronization and type of modulation allows getting a low drift clock on each sensor, on a high efficiency underwater communication network.

    This work presents a first approach to wireless underwater sensor networks UWSN time synchronization, using OFDM (Orthogonal Frequency Division Multiplexing) acoustic communication and time reference served by a synchronization protocol. This synchronization and type of modulation allows getting a low drift clock on each sensor, on a high efficiency underwater communication network.

    Postprint (author’s final draft)

  • Access to the full text
    Sea motion electrical energy generator for low-power applications  Open access

     Viñolo Monzoncillo, Carlos; Toma, Daniel Mihai; Manuel Lazaro, Antonio; Del Rio Fernandez, Joaquin
    OCEANS MTS/IEEE
    Presentation's date: 2013-06-10
    Presentation of work at congresses

    Read the abstract Read the abstract Access to the full text Access to the full text Open in new window  Share Reference managers Reference managers Open in new window

    The main problematic about electronic systems deployed in the sea for long periods of time, is to find a feasible way to supply them with the necessary amount of power and no direct supervision. In this paper a new idea is proposed and studied to supply deep sea low-consumption devices using low-cost disk piezoelectric elements. These piezoelectric components, together with a horizontal balance-like physical pendulum, create an electrical power generator that harvests the mechanical energy brought by the sea movements, preferably from the heave and pitch motion that sea waves induce in a moored-floating body as might be a buoy. The main purpose of this system is to unrelate the rate of impacts to the piezoelectric material from its natural oscillation frequency, making it viable to harvest energy from a slow motion environment such as the sea. Equations relating the energy extr action are presented and different experimentations are worked out to characterize the piezo elements. Finally a prototype with a proposed electronic harvesting system is built and tested in a real medium, showing the results before concluding the article.

    he main problematic about electronic systems deployed in the sea for long periods of time, is to find a feasible way to supply them with the necessary amount of power and no direct supervision. In this paper a new idea is proposed and studied to supply deep sea low-consumption devices using low-cost disk piezoelectric elements. These piezoelectric compon ents, together with a horizontal balance-like physical pendulum, create an electrical power generator that harvests the mechanical energy brought by the sea movements, preferably from the heave and pitch motion that sea waves induce in a moored-floating body as might be a buoy. The main purpose of this system is to unrelate the rate of impacts to the piezoelectric material from its natural oscillation frequency, making it viable to harvest energy from a slow motion environment such as the sea. Equations relating the energy extr action are presented and different experimentations are worked out to characterize the piezo elements. Finally a prototype with a proposed electronic harvesting system is built and tested in a real medium, showing the results before concluding the article.

    Postprint (author’s final draft)

  • Access to the full text
    Empirical acoustic attenuation of the seawater  Open access

     Roset Juan, Francesc Xavier; Garcia Benadí, Albert; van der Schaar, Mike Connor Roger Malcolm; Del Rio Fernandez, Joaquin; Manuel Lazaro, Antonio
    OCEANS MTS/IEEE
    Presentation's date: 2013-06-13
    Presentation of work at congresses

    Read the abstract Read the abstract Access to the full text Access to the full text Open in new window  Share Reference managers Reference managers Open in new window

    This study aims to estimate a model for the underwater acoustic environment in a Mediterranean area and to compare the model with existing other models of the sound attenuation in the zone of interest. The contribution of this paper is to develop a protocol to validate and adjust the offshore underwater attenuation models to a model of a Mediterranean area.

    This study aims to estimate a model for the underwater acoustic environment in a Mediterranean area and to compare the model with existing other models of the sound attenuation in the zone of interest. The contribution of this paper is to develop a protocol to validate and adjust the offshore underwater attenuation models to a model of a Mediterranean area.

    Postprint (author’s final draft)

  • Access to the full text
    Automatic marine sensors services discovery on IP networks  Open access

     Toma, Daniel Mihai; Del Rio Fernandez, Joaquin; O'Reilly, Thomas C.; Manuel Lazaro, Antonio
    OCEANS MTS/IEEE
    Presentation's date: 2013-06-11
    Presentation of work at congresses

    Read the abstract Read the abstract Access to the full text Access to the full text Open in new window  Share Reference managers Reference managers Open in new window

    Nowadays, the studies of episodic processes in the ocean is manly done through the innovative facilities called ocean observatories which provide unprecedented amounts of power and two-way bandwidth to access and control sensor networks in the oceans. The most capable ocean observatories are designed around a submarine fiber optic/power cable connecting one or more seafloor science nodes to the terrestrial power grid and communications backhaul. In a network consisting of tens, hundreds or thousands of marine sensors, manual configuration and integration becomes very challenging. Methods are required which support this task to minimize the administration efforts. This paper addresses this issue and presents an approach for the automatic discovery of marine sensors in ocean observatories. The work provides a needed reference implementation of PUCK over TCP/IP, and suggests the potential of a set of protocols and standards that could realize true end to end ¿Plug and Work¿ capability for sensor networks.

    Nowadays, the studies of episodic processes in the ocean is manly done through the innovative facilities called ocean observatories which provide unprecedented amounts of power and two-way bandwidth to access and control sensor networks in the oceans. The most capable ocean observatories are designed around a submarine fiber optic/power cable connecting one or more seafloor science nodes to the terrestrial power grid and communications backhaul. In a network consisting of tens, hundreds or thousands of marine sensors, manual configuration and integration becomes very challenging. Methods are required which support this task to minimize the administration efforts. This paper addresses this issue and presents an approach for the automatic discovery of marine sensors in ocean observatories. The work provides a needed reference implementation of PUCK over TCP/IP, and suggests the potential of a set of protocols and standards that could realize true end to end “Plug and Work” capability for sensor networks.

    Postprint (author’s final draft)

  • Access to the full text
    Low cost OFDM based transmitter for underwater acoustic communications  Open access

     Sarria Gandul, David; Pallares Valls, Oriol; Del Rio Fernandez, Joaquin; Manuel Lazaro, Antonio
    OCEANS MTS/IEEE
    Presentation's date: 2013-06-12
    Presentation of work at congresses

    Read the abstract Read the abstract Access to the full text Access to the full text Open in new window  Share Reference managers Reference managers Open in new window

    On this work a low cost OFDM transmitter for underwater sensor networks is presented. The transmitter is based on a low power microcontroller that governs a DDS in order to generate the output data -OFDM symbols- avoiding the IFFT computations. This solution represents a new design perspective for the current UWSN -mainly based on FPGAs or DSPs, allowing to reduce the cost, the power consumption and the size of the current transmitters.

    On this work a low cost OFDM transmitter for underwater sensor networks is presented. The transmitter is based on a low power microcontroller that governs a DDS in order to generate the output data -OFDM symbols- avoiding the IFFT computations. This solution represents a new design perspective for the current UWSN -mainly based on FPGAs or DSPs, allowing to reduce the cost, the power consumption and the size of the current transmitters.

    Postprint (author’s final draft)

  • Contribution to COBS synchronization with PTP IEEE std. 1588

     Pallares Valls, Oriol; Cadena Muñoz, Francisco Javier; Carreras Pons, Normandino; Toma, Daniel Mihai; Del Rio Fernandez, Joaquin
    OCEANS MTS/IEEE
    Presentation's date: 2013-06-11
    Presentation of work at congresses

    Read the abstract Read the abstract View View Open in new window  Share Reference managers Reference managers Open in new window

    This work presents a cabled system for collecting real-time seismic data on the coastal zones. It is deployed in the Western Mediterranean Cabled Observatory, OBSEA (www.obsea.es). A key component in this cabled system, COBS, is the use of IEEE standard 1588 that serves as a clock synchronization mechanism for the seismometer with Universal Time Coordinates (UTC) clock. Delivering of accurate timing to the seismometer, the seismic data can be time stamped using a UTC clock which is traceable to within the desired level of precision of sub milliseconds necessary for an accurate location of an earthquake.

  • Citizen Science and marine community monitoring by video-cabled observatories: the OBSEA Citizen Science Project

     Del Rio Fernandez, Joaquin; Aguzzi, Jacopo; Hidalgo Castro, Alberto; Bghiel, Ikram; Manuel Lazaro, Antonio; Sbragaglia, Valerio; Sardà Amills, Francesc
    International Symposium on Underwater Technology
    Presentation's date: 2013-03-05
    Presentation of work at congresses

    Read the abstract Read the abstract View View Open in new window  Share Reference managers Reference managers Open in new window

    The Citizen Science refers to the public participation in scientific activities and research projects related with environment and its biodiversity are taking advantage of new technologies such us internet and mobile phones with recording capabilities for an easy data collection and sharing. In this paper, we presented a Citizen Science experience with the OBSEA costal-cabled video-observatory, deployed in western Mediterranean in 2009. A local biodiversity survey is going to be conducted by citizens as generic non-experienced users, high- school students, and amateur divers helping to identify and classify fishes appearing within different digital products such as time-lapse images and footages. Accordingly, we implemented a protocol for the web-based species identification supervised by scientists, in order to evaluate the different performances for each group.

  • The use of coastal cabled video-observatories to monitor seasonal changes in shallow water fish community

     Sbragaglia, Valerio; Aguzzi, Jacopo; Santamaria, Josep; Manuel Lazaro, Antonio; Del Rio Fernandez, Joaquin; Nogueras Cervera, Marc; Sardà Amills, Francesc
    International Symposium on Underwater Technology
    p. 1-5
    Presentation's date: 2013-03-05
    Presentation of work at congresses

    View View Open in new window  Share Reference managers Reference managers Open in new window

  • OGC Location Standards for Next Generation LBS

     Del Rio Fernandez, Joaquin; Toma, Daniel Mihai; Bghiel, Ikram
    Collaboration in exhibitions

     Share

  • ANALISIS DE DATOS BASADOS EN APRENDIZAJE AUTOMATICO Y SISTEMAS INTELIGENTES DE

     Del Rio Fernandez, Joaquin; Carreras Pons, Normandino; Sitjar Cañellas, Rafael; Prat Tasias, Jordi; Moreno Lupiañez, Manuel
    Competitive project

     Share

  • The Open Geospatial Consortium PUCK standard: building sensor networks with self-describing instruments

     O'Reilly, Thomas C.; Broering, Arne; Del Rio Fernandez, Joaquin; Headley, K.; Bermúdez, Luis E.; Edgington, D.R.; Fredericks, Janet J.; Manuel Lazaro, Antonio; Toma, Daniel Mihai
    American Geophysical Union Fall Meeting
    Presentation's date: 2012-12-05
    Presentation of work at congresses

     Share Reference managers Reference managers Open in new window

  • Advances in the Interoperability in Wireless Sensor Networks for Smart Transmission Grid

     Toma, Daniel Mihai
    Department of Electronic Engineering, Universitat Politècnica de Catalunya
    Theses

     Share Reference managers Reference managers Open in new window

  • Interoperabilidad en redes de sensores para monitorización submarina: Estandares de comunicación y sincronismo: OGC PUCK, IEEE Std. 1451 Smart Sensors, IEEE Std. 1588 Precision Time Protocol

     Del Rio Fernandez, Joaquin
    Date of publication: 2012-09-13
    Book

    Read the abstract Read the abstract View View Open in new window  Share Reference managers Reference managers Open in new window

    Los observatorios submarinos cableados representan un recurso tecnológico excepcional que puede suponer un salto cualitativo tanto en la investigación de las ciencias marinas como en la oceanografía operacional y el estudio del cambio climático. La instrumentación oceanográfica presenta a día de hoy un problema de interoperabilidad debido a la diversidad de protocolos utilizados en los equipos de medida. Para asegurar la calidad y fiabilidad en el sistema de instrumentación se deben definir procedimientos y normativas a seguir durante la realización de las medidas, lo que implica el uso de diferentes estándares, que como en la mayoría de sistemas de medida distribuidos requieren una sincronización. Dos son las líneas de actuación en el trabajo de tesis: El estudio y desarrollo de nuevos estándares o la ampliación de los ya existentes, que permitan asegurar la interoperabilidad a diferentes niveles, y la evaluación e implementación de estándares de sincronización para redes cableadas aplicados a los sistemas de monitorización submarina. Se han estudiado y evaluado diferentes propuestas como el protocolo PUCK, el Sensor Interface Descriptor (SID) o la norma para integrar sensores inteligentes IEEE Std 1451, y se han realizado aportaciones para la mejora y evolución de dichos estándares. Se ha propuesto una arquitectura software-hardware basada en los protocolos antes mencionados y en SWE (Sensor Web Enable) para el nivel de aplicación, que minimiza el problema de interoperabilidad causado por la variedad de protocolos utilizados por los fabricantes de instrumentación oceanográfica. PUCK es un protocolo de comandos simple, que no tiene como objetivo realizar una estandarización de los protocolos de los instrumentos, sino complementarlos con un conjunto de comandos para automatizar una serie de funciones básicas como la detección, reconocimiento y descarga de información acerca del instrumento. Las aportaciones del trabajo de tesis sobre PUCK se han centrado en la estandarización del formato a utilizar como payload mediante el uso de SensorML, SID y TEDS, la creación de procedimientos para la detección de conexión y desconexión de un instrumento en un observatorio, el uso de SID como herramienta para declarar de manera estándar los comandos y procedimientos a seguir para comunicar con el instrumento, la ampliación de PUCK para su uso en instrumentos con comunicación Ethernet bajo redes IP y el uso de ZeroConf como estándar para el descubrimiento de un nuevo instrumento dentro de la red Ethernet. Estas propuestas las recoge el documento PUCK Specification Draft version 1.4 OGC 09-127 presentado como candidato a estándar al OGC. Se ha participado en la redacción del IEEE Std. P1451.2 2011, susceptible de ser utilizado en nuevos instrumentos de medida y minimizar así la cantidad de protocolos existentes. Para demostrar la viabilidad del uso de dicho estándar para la exportación de datos oceanográficos nivel de aplicación, se han realizado dos implementaciones de un servidor http 1451 mediante lenguaje JAVA y LabVIEW. El trabajo de tesis demuestra la viabilidad del uso del IEEE Std.1588 PTP sobre la sincronización de redes de sensores en observatorios submarinos cableados mediante desarrollos basados en microprocesadores IM3220 y LM3S9B96 y su evaluación en un entorno real como es el observatorio submarino OBSEA, particularizando en proveer de sincronismo a un sismómetro mediante el diseño de un emulador GPS submarino sincronizado mediante PTP.

  • Access to the full text
    Evaluation of the R&R and the compatibility index for non-independent measurements  Open access

     Garcia Benadí, Albert; Molino Minero Re, Erik; Del Rio Fernandez, Joaquin; Manuel Lazaro, Antonio
    IMEKO World Congress
    Presentation's date: 2012-09-13
    Presentation of work at congresses

    Read the abstract Read the abstract Access to the full text Access to the full text Open in new window  Share Reference managers Reference managers Open in new window

    This paper describes the methodology of the compatibility criteria “En” and the methodology of R&R. With this paper we’ll use the methodology R&R for the evaluation of the compatibility criteria between the staff of the laboratories, where independent measurements aren’t insured.

  • Self-powered high-rate wireless sensor network for underground high voltage power lines

     Toma, Daniel Mihai; Del Rio Fernandez, Joaquin; Manuel Lazaro, Antonio
    IEEE International Instrumentation and Measurement Technology Conference
    p. 1881-1885
    Presentation's date: 2012-05-01
    Presentation of work at congresses

    Read the abstract Read the abstract View View Open in new window  Share Reference managers Reference managers Open in new window

    The use of Wireless Sensor Networks (WSNs) are a promising technology that can enhance various aspects of today’s electric power systems, including generation, delivery, and utilization, making them a vital component of the next-generation electric power system, the smart grid. However, harsh and complex electric-power-system environments pose great challenges in the reliability of WSN communications in smartgrid applications. This paper presents wireless sensors with magnetic harvesting capabilities deployed along Underground High Voltage Power Lines (UHVPL) to allow long-lasting operation. The paper includes an overview of the communication protocol that optimizes sensor node coordination in linear array arrangements. Based on an optimal time synchronization method, the wireless sensors can self-adjust the communication timing in order to minimize the total power consumption. In addition, the paper provides a description of a linear sensor network under test, the results and discussions concerning network reliability and power efficiency.

  • Access to the full text
    AUV based multi-vehicle collaboration: Salinity studies in Mar Menor coastal lagoon  Open access

     Gonzalez Agudelo, Julian; Masmitja Rusiñol, Ivan; Gomariz Castro, Spartacus; Molino, Erik; Del Rio Fernandez, Joaquin; Manuel Lazaro, Antonio; Busquets, J; Guerrero, A; Lopez, F; Carreras, M; Ribas, D; Carrera, A; Candela, C; Ridao, P; Sousa, J; Calado, P; Pinto, J; Sousa, A; Martins, R; Borrajo, D; Olaya, A; Garau, B; Gonzalez, I; Torres, S; Rajan, R; McCann, M; Gilabert Cervera, Javier
    IFAC Workshop on Navigation, Guidance and Control of Underwater Vehicles
    p. 287-292
    Presentation's date: 2012-04-10
    Presentation of work at congresses

    Read the abstract Read the abstract Access to the full text Access to the full text Open in new window  Share Reference managers Reference managers Open in new window

    An experiment with different AUVs was carried out in the Mar Menor Coastal Lagoon from October 31 to November 5 in order to measure and assess the influence of the water from the Mar Menor on the adjacent area of the Mediterranean. This was carried out as a result of the meeting held between several institutions from the Iberian Peninsula and EEUU (see Vilanova Marine Science/Robotics Meeting 2010). The experiment was to launch several AUVs at the same time in different zones of the Mediterranean and Mar Menor lagoon. AUVs took salinity data trying to do a coordinated mission during two operative days (November 3 and November 5). Others days of the experiment were used to the vehicle’s preparation and error correction (November 2 and November 4). This paper presents the steps followed in preparation and operative days with the set of AUVs. This paper presents also the salinity results obtained during these missions.

  • NUEVAS TECNOLOGÍAS PARA EL SEGUIMIENTO DE LA ACIDIFICACIÓN MARINA EN EL ESPACIO NATURAL COSTA DEL GARRAF ES5110020

     Cadena Muñoz, Francisco Javier; Toma, Daniel Mihai; Nogueras Cervera, Marc; Del Rio Fernandez, Joaquin; Vidal Oliveras, Neus; Olive Duran, Joaquim; Manuel Lazaro, Antonio
    Competitive project

     Share

  • CURSOS FORMACIÓ OCUPAPCIONAL-FOAP 2011

     Del Rio Fernandez, Joaquin; Cadena Muñoz, Francisco Javier; Vidal Oliveras, Neus; Manuel Lazaro, Antonio; Olive Duran, Joaquim
    Competitive project

     Share

  • INSTALACION DE EQUIPOS EN SUPERFÍCIE PARA LA AMPLIACIÓN DE LAS PRESTACIONES DEL OBSERVATORIO SUBMARINO OBSEA

     Cadena Muñoz, Francisco Javier; Toma, Daniel Mihai; Del Rio Fernandez, Joaquin; Molino Minero Re, Erik; Olive Duran, Joaquim; Manuel Lazaro, Antonio
    Competitive project

     Share

  • APORTACIONES A LA INTEROPERABILIDAD EN LAS REDES DE SENSORES APLICADOS A LA MONITORIZACIÓN SUBMARINA

     Del Rio Fernandez, Joaquin
    Department of Electronic Engineering, Universitat Politècnica de Catalunya
    Theses

     Share Reference managers Reference managers Open in new window

  • Honorable mention oustanding presentation (MARTECH 2011)

     Prat Farran, Joana d'Arc; Del Rio Fernandez, Joaquin
    Award or recognition

    View View Open in new window  Share

  • Inter-individual and depth-related variability of Nephrops norvegicus biological rhythms and implications on its population assessment

     Sbragaglia, Valerio; Aguzzi, Jacopo; García, José Antonio; Chiesa, Juan José; Sarria Gandul, David; Manuel Lazaro, Antonio; Del Rio Fernandez, Joaquin; Sardà Amills, Francesc
    World Conference on Marine Biodiversity
    p. 153
    Presentation's date: 2011-09-28
    Presentation of work at congresses

    View View Open in new window  Share Reference managers Reference managers Open in new window