Literatura académica sobre el tema "Hybrid AUV/ROV"
Crea una cita precisa en los estilos APA, MLA, Chicago, Harvard y otros
Consulte las listas temáticas de artículos, libros, tesis, actas de conferencias y otras fuentes académicas sobre el tema "Hybrid AUV/ROV".
Junto a cada fuente en la lista de referencias hay un botón "Agregar a la bibliografía". Pulsa este botón, y generaremos automáticamente la referencia bibliográfica para la obra elegida en el estilo de cita que necesites: APA, MLA, Harvard, Vancouver, Chicago, etc.
También puede descargar el texto completo de la publicación académica en formato pdf y leer en línea su resumen siempre que esté disponible en los metadatos.
Artículos de revistas sobre el tema "Hybrid AUV/ROV"
1
Bond, Todd, Jane Prince, Dianne L. McLean y Julian C. Partridge. "Comparing the Utility of Industry ROV and Hybrid-AUV Imagery for Surveys of Fish Along a Subsea Pipeline". Marine Technology Society Journal 54, n.º 3 (1 de mayo de 2020): 33–42. http://dx.doi.org/10.4031/mtsj.54.3.5.
Texto completoResumen
AbstractIn recent years, video footage obtained from routine industry surveys using remotely operated vehicles (ROVs) has been used to assess fish assemblages associated with offshore oil and gas infrastructure. However, as industry moves towards using autonomous underwater vehicles (AUVs), it is important to understand how such a change may affect assessments of fish assemblages and whether these data collected from AUVs can be directly compared to those collected from historic and future ROV footage. In an extremely rare opportunity, we compare fish assemblages surveyed by an industrial ROV and an industrial hybrid-AUV (H-AUV) along the same 2,060-m section of subsea pipeline, at the same time of day, within 1 day of each other. A total of 206 transects, each 20 m in length, were analyzed, recording 406 fish from 10 species. The H-AUV recorded all 10 fish species, while the ROV recorded seven. Mean species richness was ~4% higher for H-AUV, and mean abundance was ~21% higher for ROV; these differences can be considered negligible. Multivariate analysis revealed nonsignificant differences in species composition between survey methods. This result suggests that future surveys of fish at this pipeline using a similar H-AUV can yield comparable results to ROV and, as such, facilitate comparison to historical ROV imagery. Future surveys of pipelines with AUV should consider adding extra lighting and high-definition cameras onto booms similar to those operating on ROVs, which will provide a useful field of view into pipeline spans and make it easier to identify fish. Our study provides insight into the utility and comparability of industry ROV and AUV pipeline inspection footage for the assessment of fish assemblages associated with subsea pipelines, which is used to inform policies and practices on the installation and decommissioning of subsea infrastructure.
2
Матвиенко, Ю. В., В. В. Костенко, А. Ф. Щербатюк y А. В. Ремезков. "DEVELOPMENT OF THE TECHNOLOGICAL POTENTIAL OF AUTONOMOUS UNDERWATER VEHICLES". Podvodnye issledovaniia i robototehnika, n.º 4(34) (24 de enero de 2020): 4–14. http://dx.doi.org/10.37102/24094609.2020.34.4.001.
Texto completoResumen
Перспективы создания подводных роботов – автономных и телеуправляемых необитаемых подводных аппаратов (АНПА, ТНПА) нового поколения связаны с разработкой технологий гибридных необитаемых подводных аппаратов (ГНПА), в которых интегрированы функции АНПА и ТНПА. Проблема состоит в значительном расширении технологических возможностей АНПА за счет оснащения их новыми инструментами, совершенствования систем бортового управления, вовлечения оператора в технологический процесс для оперативного контроля хода работ, порядка и условий выполнения принципиально новых технологических операций. ГНПА может выполнять широкий спектр бесконтактных работ, выходить к объекту обследования в соответствии с заданной программой, выполнять действия, связанные с формированием канала информационного обмена с постом управления, и далее выполнять контактные операции в супервизорном режиме. Первоочередные задачи создания гибридных аппаратов состоят в развитии функциональных свойств АНПА, включая: интеллектуализацию системы бортового управления, организацию супервизорного управления с включением оператора в процесс управления, расширение инструментального оснащения и оптимизацию конструктивных решений, организацию сетевых средств подводной навигации, организацию инфраструктуры подводного базирования аппарата при выполнении длительных работ по обслуживанию подводных добычных комплексов. В работе показана принципиальная возможность создания ГНПА на основе робототехнических комплексов и их систем, созданных в ИПМТ ДВО РАН за последние годы. Prospects of designing autonomous and remotely operated underwater vehicles (AUV and ROV) of the new generation rely on developing hybrid autonomous and remotely-operated vehicles (ARV), which combine functions of AUV and ROV. It is necessary to expanse significantly AUV's technological capabilities by equipping it with new instruments, upgrading onboard control systems, involving operators in the technological process for real-time control of work progress, and execution order and conditions of novel technological operations. ARV is capable of performing a wide specter of contactless operations: approach the target of research according to the stated program, perform operations related to establishing a data exchange channel with control station, and then carry out contact operation in supervisory mode. Priority tasks of hybrid vehicles designing consist of the development of AUV's functional properties, including: intellectualization of onboard control systems; provision of supervisory control involving an operator in control flow; expansion of instrumentation and optimization of structural solutions; providing a network means for underwater navigation; providing an infrastructure for underwater deployment while carrying out long-term missions on the maintenance of underwater mining complexes. Work demonstrates a principal achievability of designing an ARV based on robotic complexes and their systems developed in the IMTP FEB RAS for the past years.
3
Bowen, Andrew D., Dana R. Yoerger, Louis L. Whitcomb y Daniel J. Fornari. "Exploring the Deepest Depths: Preliminary Design of a Novel Light-Tethered Hybrid ROV for Global Science in Extreme Environments". Marine Technology Society Journal 38, n.º 2 (1 de junio de 2004): 92–101. http://dx.doi.org/10.4031/002533204787522776.
Texto completoResumen
This paper describes a new project to build an operational underwater vehicle that can perform scientific survey and sampling to the full depth of the ocean (11,000 meters). The vehicle, called a hybrid remotely operated vehicle (HROV), will operate in two different modes. For broad area survey, the vehicle will operate untethered as a autonomous underwater vehicle (AUV) capable of exploring and mapping the seafloor with sonars and cameras. After targets of interest have been found, the vehicle will be converted at-sea to become a remotely operated vehicle (ROV) that will enable close up imaging and sampling. The ROV configuration will incorporate a lightweight fiber optic tether to the surface for high bandwidth real-time video and data telemetry to the surface to enable high-quality teleoperation, additional cameras and lights, a manipulator arm, and sampling gear. This paper outlines the scientific motivation for the project as well as the feasibility of our design concept. Analysis of the fiber optic cable shows our approach to be practical even with fairly extreme current profiles. An overall approach to the vehicle design is also presented, including options for pressure housings and buoyancy materials.
4
Wang, Biao, Chao Wu y Tong Ge. "Self-Repairing Control System for a Hybrid Underwater Vehicle". Advanced Materials Research 834-836 (octubre de 2013): 1256–62. http://dx.doi.org/10.4028/www.scientific.net/amr.834-836.1256.
Texto completoResumen
A novel remotely operated underwater vehicle-a hybrid remotely operated underwater vehicle (HROV) capable of working to the full ocean depth has been developed. The battery powered vehicle operates in two modes. For broad-area survey, the vehicle can operate as an autonomous underwater vehicle (AUV) capable of mapping the sea floor with sonars and cameras. For close up imaging and sampling, the vehicle can operate as a remotely operated underwater vehicle (ROV) employing a optic fiber tether for real-time telemetry of data and video to its operators on a surface ship. In order for the vehicle to achieve a certain survivability and reliability level, a self-repairing control system (SRCS) has been designed. This paper presents the two basic technologies in SRCS: fault diagnosis and isolation (FDI) and reconfigurable control. For FDI, a model-based hierarchical fault diagnosis system is designed for the HROV. Then, control strategies which reconfigure the control system at intervals according to information from the FDI system are presented. Combining the two technologies, we obtained the fundamental frame of SRCS for the HROV.
5
Carpenter, Chris. "Underwater Drones Promote Sustainability of Offshore Natural Resources Exploitation". Journal of Petroleum Technology 75, n.º 08 (1 de agosto de 2023): 70–72. http://dx.doi.org/10.2118/0823-0070-jpt.
Texto completoResumen
_ This article, written by JPT Technology Editor Chris Carpenter, contains highlights of paper OTC 32481, “How Underwater Drones Can Promote the Environmental Sustainability of Offshore Natural Resources Exploitation,” by Giovanni Massari, Cristina Marras, SPE, and Francesco Cavallini, Saipem. The paper has not been peer reviewed. Copyright 2023 Offshore Technology Conference. Reproduced by permission. _ The goal of the complete paper is to offer an overview of underwater intervention/inspection drones (UIDs) and provide the necessary elements to take full advantage of this technology, supporting environmental sustainability of future offshore projects and activities. The investigation provided in the complete paper explores conventional applications for oil and gas and extends to future energy, mining, and CO2 capture and storage projects. UID Technology Subsea robotics is rapidly evolving from conventional remotely operated vehicles (ROVs) and autonomous underwater vehicles (AUVs) to services delivered by a new generation of vehicles with hybrid capabilities. UIDs present distinct advantages and technical challenges, including the following: - UIDs are battery-powered robotic solutions capable of interchanging data through water communication modems (acoustic or optical). - UIDs have hybrid AUV and ROV capabilities; as an ROV, they can be operated by a pilot using a remotely controlled console that also can be located onshore, while, as an AUV, they can execute complex tasks or missions automatically. - Underwater drones can efficiently and safely operate in total darkness, with poor or no communication links. For this reason, UIDs typically are provided with an advanced set of sensors (sonar, cameras, and lasers) capable of providing information about the vehicle’s orientation, altitude, depth, and the absolute or relative position. - UIDs can be deployed from a topside offshore facility, launched from shore, or deployed inside a subsea garage. Although these descriptions underline some of the technical challenges related to UIDs that require additional steps to achieve full maturity, the use of UIDs nevertheless clearly presents advantages that are almost independent from the application scenarios, including reduced operational risks, intervention time, CO2 emissions, and cost. Environmental Sustainability of Offshore Projects The notion of environmental sustainability embodies maintaining an ecological balance in the natural environment for the benefit of current and future generations; promoting responsible and respectful management of natural resources; avoiding their depletion and the degradation of the environment; and extending the concept to encompass social, human, and economic considerations. Robotic subsea technology offers pivotal assistance in accessing critical information so that all stakeholders can execute and operate offshore projects responsibly, satisfying essential projects’ commercial, environmental, and social criteria. The authors write that, while offshore companies and technology suppliers have already jointly explored the introduction of UIDs within conventional integrity-management campaigns of oil and gas fields, confirming the benefits of this choice for derisking and cost efficiency, a deep analysis on how UIDs can be used to boost environmental sustainability of complex offshore projects is still missing. Their work investigates relevant examples in this domain.
6
Coronado, Eugenio. "(Invited) Smart Molecular/2D Heterostructures". ECS Meeting Abstracts MA2023-01, n.º 11 (28 de agosto de 2023): 1238. http://dx.doi.org/10.1149/ma2023-01111238mtgabs.
Texto completoResumen
Graphene and other 2D materials are almost exclusively based on inorganic lattices. Except for the chemical functionalization of the surface of the 2D material, molecules have been scarcely considered in this area. Here I propose to create hybrid heterostructures by interfacing stimuli-responsive molecular systems with graphene and semiconducting transition metal dichalcogenides (MoS2 and WSe2). The aim is that of tuning the properties of the “all surface” 2D material via an active control of the hybrid interface. This concept will provide an entire new class of smart molecular/2D heterostructures, which may be at the origin of a novel generation of hybrid materials and devices of direct application in highly topical fields like electronics, spintronics and energy storage. As smart-molecular systems I will choose magnetic spin-crossover materials able to switch between two spin states upon the application of an external stimulus (temperature, light or pressure) [2]. This spin transition is always accompanied by a significant change of volume in the material (by ca. 10%), so it can generate strain in its surroundings. I will show that in these heterostructures the electronic properties of graphene and the optical photoluminescence of monolayers of semiconducting metal dichalcogenides can be switched by light or by varying the temperature due to the strain concomitant to the spin transition [3, 4]. References [1] J. Lopez-Cabrelles et al., J. Am. Chem. Soc. 143 18502-18510 (2021). [2] E. Coronado, Nature Rev. Mater. 5 87-104 (2020). [3] R. Torres-Cavanillas et al. Nature Chem. 13 1101-1109 (2021). [4] C. Boix-Constant et al. Adv. Mater. 34 2110027 (2022).
7
Jethwa, Rajesh B., Angelina Castro-Trujillo, Julia Valentin, Lakshman V. Kilari, Fernando Solorio-Soto, Stefan Stadlbauer y Stefan A. Freunberger. "Organic Bulk Liquid Redox Active Materials for Redox Flow Batteries". ECS Meeting Abstracts MA2023-02, n.º 4 (22 de diciembre de 2023): 534. http://dx.doi.org/10.1149/ma2023-024534mtgabs.
Texto completoResumen
Redox flow batteries (RFBs) are one potential solution to grid-level electrical energy storage (EES) benefiting from a decoupled power and capacity scaling.1–3 High durability, long-calendar life, high efficiency EES with a low cost and fast response time is needed1,4 for the transition from fossil fuels to renewable sources.3 However, the low energy density3,5,6 and high capital costs5,6 of current systems preclude wide-scale deployment of this technology. In recent years, several new RFB chemistries have been explored to address these concerns.1,2,7 However, a high solubility for a high volumetric energy density remains a troublesome target.1 It is, therefore, no surprise that one growing trend in this regard is the design of redox active liquids (RALs).8–13 RALs provide a means of dramatically increasing the volumetric energy density of RFBs through either miscibility with typical supporting electrolytes, or by acting as both solvent and electrolyte themselves.9,12 In this work, we investigate a series of RALs that offer a similar theoretical energy density to conventional intercalation materials. A combination of computational and experimental techniques was employed herein for both molecular design and explanation of the physio-chemical phenomena. The candidate compounds were initially screened via electrochemical techniques to identify their electrochemical reversibility and stability. Exploration of the bulk properties was then carried out before system-level characterisation was undertaken. In tandem, the electrochemical and chemical stability of the samples was also investigated through the typical routes (NMR, EPR, UV-Vis). These systems show much promise for organic, tuneable electrical energy storage. Cao, J., Tian, J., Xu, J. & Wang, Y. Organic Flow Batteries: Recent Progress and Perspectives. Energy and Fuels 34, 13384–13411 (2020). Ding, Y., Zhang, C., Zhang, L., Zhou, Y. & Yu, G. Molecular engineering of organic electroactive materials for redox flow batteries. Chem. Soc. Rev. 47, 69–103 (2018). Alotto, P., Guarnieri, M. & Moro, F. Redox flow batteries for the storage of renewable energy: A review. Renew. Sustain. Energy Rev. 29, 325–335 (2014). Weber, A. Z. et al. Redox flow batteries: A review. J. Appl. Electrochem. 41, 1137–1164 (2011). Potash, R. A., McKone, J. R., Conte, S. & Abruña, H. D. On the Benefits of a Symmetric Redox Flow Battery. J. Electrochem. Soc. 163, A338–A344 (2016). Wang, W. et al. Recent progress in redox flow battery research and development. Adv. Funct. Mater. 23, 970–986 (2013). Li, Z., Jiang, T., Ali, M., Wu, C. & Chen, W. Recent Progress in Organic Species for Redox Flow Batteries. Energy Storage Mater. 50, 105–138 (2022). Shimizu, A. et al. Liquid Quinones for Solvent-Free Redox Flow Batteries. Adv. Mater. 29, 1606592 (2017). Robertson, L., Udin, M. A., Shlrob, I. A., Moore, J. S. & Zhang, L. Liquid Redoxmers for Nonaqueous Redox Flow Batteries. ChemSusChem e202300043 (2023) doi:10.1002/cssc.202300043. Chen, N., Chen, D., Wu, J., Lai, Y. & Chen, D. Polyethylene glycol modified tetrathiafulvalene for high energy density non-aqueous catholyte of hybrid redox flow batteries. Chem. Eng. J. 462, 141996 (2023). Smith, L. O. & Crittenden, D. L. Acid‐Base Chemistry Provides a Simple and Cost‐Effective Route to New Redox‐Active Ionic Liquids. Chem. – An Asian J. 18, e202201296 (2023). Zhao, Y. et al. TEMPO allegro: liquid catholyte redoxmers for nonaqueous redox flow batteries. J. Mater. Chem. A 9, 16769–16775 (2021). Huang, J. et al. Liquid Catholyte Molecules for Nonaqueous Redox Flow Batteries. Adv. Energy Mater. 5, 1401782 (2015).
8
Jethwa, Rajesh, Dominic Hey, Rachel Kerber, Dominic S. Wright y Clare P. Grey. "An Exploration of Nitrogen-Rich Fused Heteroaromatic Quinones for Redox Flow Battery Applications". ECS Meeting Abstracts MA2022-01, n.º 48 (7 de julio de 2022): 2013. http://dx.doi.org/10.1149/ma2022-01482013mtgabs.
Texto completoResumen
The growing need to transition from fossil fuels to renewable energy sources will require innovative development of grid-level electrochemical energy storage.1 Suitable grid-level storage must provide a high cycle number durability, long calendar life, high efficiency, low cost and fast response time.2–4 Redox flow batteries (RFBs) are one potential solution boasting a decoupled power and capacity scaling.1,4,5 However, the low energy density1,6,7 and high capital costs6,7 of current systems preclude wide-scale deployment of this technology. Increasing energy density can be achieved in various ways: expanding the voltage window or by minimising the mass and/or volume per electron transferred.8 These offer potential strategies for electrolyte exploration but the challenge is to minimise the cost while providing as much electrical energy storage as possible. Current electrolyte systems for RFBs rely on a variety of metal-based systems (vanadium,9 iron,10 chromium10)1,11 and a range of organic molecules (nitroxide radicals,12 phenazines,12–14 viologens,15 and quinones16–18).4,5 Quinones offer fast kinetics, high tunability and low cost.5 Of these, higher order quinones offer increased chemical and electrochemical stability.5 In this work, an exploration of nitrogen-rich fused heteroaromatic quinones was carried out to investigate new avenues for electrolyte development. The electrolytes were screened using electrochemical techniques and the most promising candidate was tested in a lab-scale flow battery as an anolyte under aqueous conditions. Sitting at -0.7 V(SHE), a capacity fade rate of 0.004%.cycle-1 was found in symmetric cycling. In situ UV-Vis, NMR19,20 and EPR19 spectroscopy were used to investigate the electrochemical stability and nature of the charged species involved during operation, complemented by density functional theory modelling. These studies indicate that fused systems of this type may be promising candidates for aqueous RFBs. Alotto, P., Guarnieri, M. & Moro, F. Redox flow batteries for the storage of renewable energy: A review. Renew. Sustain. Energy Rev. 29, 325–335 (2014). Weber, A. Z. et al. Redox flow batteries: A review. J. Appl. Electrochem. 41, 1137–1164 (2011). Gyuk, I. et al. Grid Energy Storage. (2013). Cao, J., Tian, J., Xu, J. & Wang, Y. Organic Flow Batteries: Recent Progress and Perspectives. Energy and Fuels 34, 13384–13411 (2020). Ding, Y., Zhang, C., Zhang, L., Zhou, Y. & Yu, G. Molecular engineering of organic electroactive materials for redox flow batteries. Chem. Soc. Rev. 47, 69–103 (2018). Potash, R. A., McKone, J. R., Conte, S. & Abruña, H. D. On the Benefits of a Symmetric Redox Flow Battery. J. Electrochem. Soc. 163, A338–A344 (2016). Wang, W. et al. Recent progress in redox flow battery research and development. Adv. Funct. Mater. 23, 970–986 (2013). Armand, M. & Tarascon, J. M. Building better batteries. Nature 451, 652–657 (2008). Ulaganathan, M. et al. Recent Advancements in All-Vanadium Redox Flow Batteries. Adv. Mater. Interfaces 3, (2016). Sun, C. & Zhang, H. A review of the development of the first‐generation redox flow battery : iron chromium system. ChemSusChem (2021). doi:10.1002/CSSC.202101798 Noack, J., Roznyatovskaya, N., Herr, T. & Fischer, P. The Chemistry of Redox-Flow Batteries. Angew. Chemie - Int. Ed. 54, 9776–9809 (2015). Winsberg, J. et al. Aqueous 2,2,6,6-Tetramethylpiperidine-N-oxyl Catholytes for a High-Capacity and High Current Density Oxygen-Insensitive Hybrid-Flow Battery. ACS Energy Lett. 2, 411–416 (2017). Kwon, G. et al. Multi-redox Molecule for High-Energy Redox Flow Batteries. Joule 2, 1771–1782 (2018). Romadina, E. I., Komarov, D. S., Stevenson, K. J. & Troshin, P. A. New phenazine based anolyte material for high voltage organic redox flow batteries. Chem. Commun. 57, 2986–2989 (2021). Hu, S. et al. Phenylene-Bridged Bispyridinium with High Capacity and Stability for Aqueous Flow Batteries. Adv. Mater. 33, 2005839 (2021). Suo, L. et al. Advanced High-Voltage Aqueous Lithium-Ion Battery Enabled by “Water-in-Bisalt” Electrolyte. Angew. Chemie - Int. Ed. 55, 7136–7141 (2016). Shimizu, A. et al. Liquid Quinones for Solvent-Free Redox Flow Batteries. Adv. Mater. 29, 1606592 (2017). Yang, Z. et al. Alkaline Benzoquinone Aqueous Flow Battery for Large-Scale Storage of Electrical Energy. Adv. Energy Mater. 8, 1702056 (2018). Zhao, E. W. et al. Coupled in Situ NMR and EPR Studies Reveal the Electron Transfer Rate and Electrolyte Decomposition in Redox Flow Batteries. J. Am. Chem. Soc. 143, 1885–1895 (2021). Zhao, E. W. et al. In situ NMR metrology reveals reaction mechanisms in redox flow batteries. Nature 579, 224–228 (2020). Figure 1
9
Barawi Moran, Mariam, Elena Alfonso, Sandra Palenzuela, Miguel García-Tecedor, Ignacio J. Villar-Garcia, Freddy Oropeza, Marta Liras y Victor A. de la Peña O'Shea. "New Insights and Strategies for the Efficient Use of Conjugated Porous Polymers in Photoelectrochemical Solar Fuel Production". ECS Meeting Abstracts MA2023-02, n.º 47 (22 de diciembre de 2023): 2368. http://dx.doi.org/10.1149/ma2023-02472368mtgabs.
Texto completoResumen
Solar energy conversion into fuels such as hydrogen through photoelectrochemical (PEC) cells is an attractive way to solve the problems present in the actual energetic system. (1) Despite the advances that have been made in this line, it is still necessary to develop new materials and cell configurations to take this technology to a higher scientific level. The application of organic polymers in PEC is a hot topic that continues to grow due to the promising optoelectronic properties of this class of semiconductors. Conjugated polymers exhibit advanced properties because of it particular conjugation that confers it a huge conductivity through the whole structure. (2) In particular, Conjugate Porous Polymers (CPP) offers a higher photostability and robustness that is fundamental for long term application, but their synthesis often leads to a large-particle powder, unsuitable for preparing thin films, key to preparing high-quality thin films, limiting its applicability in PEC.(3) In this work, we present two innovative strategies that allow the efficient use of these materials in photoelectrochemical cells. The first consists of a synthetic route through mini or ultra-mini emulsion synthesis that provides particles from 500 nm to 20 nm, adequate for thin film preparation. The second consists in the design of suitable monomers to be electropolymerised, obtaining high quality thin films and highly controlled thickness. These strategies allow the complete characterization of the optoelectronic properties of the CPPs, since the thin films obtained are of high quality and stable over time. In this way, several polymers have been prepared and the electronic structure was determined by a combination different techniques such as XPS, electrochemistry and UV-VIS spectroscopy, revealing the suitability to be used as photoelectrodes. The photoelectrochemical properties were analyses by means of linear sweep voltammetry, chronoamperometry, and Photopotential measurements suggesting its potentiality for solar energy conversion. In addition, attending o the conductivity type and electronic properties, both photoelectrodes and tandem cells have been designed by combining them with different materials such as TiO2. The formed hybrid photoelectrodes have been characterized by X-ray diffraction, SEM, EDX and AFM. A series of photoelectrochemical measurements have been performed in a three electrode cell configuration, using the hybrid materials as working electrodes. (4) Hybrid photoelectrodes present improved photovoltages and photocurrents compared to TiO2 and CPP alone, confirming adequate light absorption and charge transfer between them. Besides, Electrochemical Impedance Spectroscopy (EIS) was performed to confirm the improved charge transfer observed when illuminating the hybrid photoelectrodes. Furthermore, the designed tandem cells were connected to a gas chromatograph and the hydrogen evolution was confirmed and quantified. Keywords: Photoelectrochemistry, Solar fuels, Organic materials, Conjugate Porous Polymers, References M. Grätzel, Photoelectrochemical cells. Nature. 414, 338–344 (2001). M. Liras, M. Barawi, V. A. de la P. O’Shea. Chem. Soc. Rev. 48, 5454–5487 (2019). M. Barawi, L. Collado, M. Gomez-Mendoza, F. E. Oropeza, M. Liras, V. A. de la P. O’Shea, C. Adv. Energy Mater. 18, 2101530 (2021). M. Barawi, E. Alfonso-González, C.G. López-Calixto, A. García, A. García-Sánchez, I. J. Villar-García, M. Liras, V.A. de la Peña O'Shea. Small, 18, 37. 2201351 (2022). Acknowledgements This work was supported by the Spanish national project NovaCO2 (PID2020-118593RB-C22) and ERC POC (NanoCPP). M.B thanks the Juan de la Cierva Incorporación grant (IJC2019 – 042430 –I).
10
Kajkowska, Marta, Miłosz Chychłowski y Piotr Lesiak. "Influence of photopolymerization on propagation properties of photonic crystal fiber infiltrated with liquid crystal mixture". Photonics Letters of Poland 14, n.º 3 (30 de septiembre de 2022): 68. http://dx.doi.org/10.4302/plp.v14i3.1166.
Texto completoResumen
In this paper we analyze the influence of the photopolymerization process on propagation properties of photonic crystal fiber infiltrated with liquid crystal doped with a mixture of reactive monomer and photoinitiator. The obtained results showed changes in photonic band gap of the fiber due to refractive index change of the liquid crystal mixture caused by the polymerization process. Moreover, the research demonstrated the possibility of preserving the desired molecular orientation of liquid crystal initially stabilized by placing the sample in the external electric field. This was achieved by simultaneously irradiating the sample and controlling the orientation of liquid crystal molecules with the electric field. The spectral analysis of the polymerized sample showed no visible difference in propagation spectra when the electric field was turned off after the process was finished. Full Text: PDF ReferencesK. Yin et al., "Advanced liquid crystal devices for augmented reality and virtual reality displays: principles and applications", Light Sci Appl. 11, 161 (2022). CrossRef S. Singh, "Phase transitions in liquid crystals", Phys. Rep. 324, 107 (2000). CrossRef N. Tarjányi, M. Veveričík, D. Káčik, M. Timko, P. Kopčanský, "Birefringence dispersion of 6CHBT liquid crystal determined in VIS-NIR spectral range", Appl. Surf. Sci. 542, 148525 (2021). CrossRef R. Dąbrowski, P. Kula, J. Herman, "High Birefringence Liquid Crystals", Crystals 3, 443 (2013). CrossRef R. H. Self, C. P. Please, T. J. Sluckin, "Deformation of nematic liquid crystals in an electric field", Eur. J. Appl. Math. 13, 1 (2002). CrossRef T. Hegmann, H. Qi, V. M. Marx, "Nanoparticles in Liquid Crystals: Synthesis, Self-Assembly, Defect Formation and Potential Applications", J. Inorg. Organomet. Polym. 17, 483 (2007). CrossRef S. Kaur, S. P. Singh, A. M. Biradar, A. Choudhary, K. Sreenivas, "Enhanced electro-optical properties in gold nanoparticles doped ferroelectric liquid crystals", Appl. Phys. Lett. 91, 023120 (2007). CrossRef I. Dierking, "Polymer Network–Stabilized Liquid Crystals", Adv. Mater. 12, 167 (2000). CrossRef D. C. Hoekstra et al., "Wavelength-Selective Photopolymerization of Hybrid Acrylate-Oxetane Liquid Crystals", Angew. Chem. Int. Ed. 60, 10935 (2021). CrossRef Z. Ge, S. Gauza, M. Jiao, H. Xianyu, S.-T. Wu, "Electro-optics of polymer-stabilized blue phase liquid crystal displays", Appl. Phys. Lett. 94, 101104 (2009). CrossRef M. S. Chychłowski et al., "Locally-induced permanent birefringence by polymer-stabilization of liquid crystal in cells and photonic crystal fibers", Opto-electron. Rev. 26, 242 (2018). CrossRef R. Dąbrowski, J. Dziaduszek, T. Szczuciński, "Mesomorphic Characteristics of Some New Homologous Series with the Isothiocyanato Terminal Group", Mol. Cryst. Liq. Cryst. 124, 241 (1985). CrossRef
Tesis sobre el tema "Hybrid AUV/ROV"
1
Pham, Hoang Anh. "Coordination de systèmes sous-marins autonomes basée sur une méthodologie intégrée dans un environnement Open-source". Electronic Thesis or Diss., Toulon, 2021. http://www.theses.fr/2021TOUL0020.
Texto completoResumen
Cette thèse étudie la coordination de robots sous-marins autonomes dans le contexte d’exploration de fonds marins côtiers ou d’inspections d’installations. En recherche d’une méthodologie intégrée, nous avons créé un framework qui permet de concevoir et simuler des commandes de robots sous-marins low-cost avec différentes hypothèses de modèle de complexité croissante (linéaire, non-linéaire, et enfin non-linéaire avec des incertitudes). Sur la base de ce framework articulant plusieurs outils, nous avons étudié des algorithmes pour résoudre le problème de la mise en formation d’un essaim, puis celui de l’évitement de collisions entre robots et celui du contournement d’obstacle d’un groupe de robots sous-marins. Plus précisément, nous considérons d'abord les modèles de robot sous-marin comme des systèmes linéaires de type simple intégrateur, à partir duquel nous pouvons construire un contrôleur de mise en formation en utilisant des algorithmes de consensus et d’évitement. Nous élargissons ensuite ces algorithmes pour le modèle dynamique non linéaire d’un robot Bluerov dans un processus de conception itératif. Nous intégrons ensuite un réseau de neurones de type RBF (Radial Basis Function), déjà éprouvé en convergence et stabilité, avec le contrôleur algébrique pour pouvoir estimer et compenser des incertitudes du modèle du robot. Enfin, nous décrivons les tests de ces algorithmes sur un essaim de robots sous-marins réels BlueROV en environement Opensource de type ROS et programmés en mode autonome. Ce travail permet également de convertir un ROV téléopéré en un hybride ROV-AUV autonome. Nous présentons des résultats de simulation et des essais réels en bassin validant les concepts proposésThis thesis studies the coordination of autonomous underwater robots in the context of coastal seabed exploration or facility inspections. Investigating an integrated methodology, we have created a framework to design and simulate low-cost underwater robot controls with different model assumptions of increasing complexity (linear, non-linear, and finally non-linear with uncertainties). By using this framework, we have studied algorithms to solve the problem of formation control, collision avoidance between robots and obstacle avoidance of a group of underwater robots. More precisely, we first consider underwater robot models as linear systems of simple integrator type, from which we can build a formation controller using consensus and avoidance algorithms. We then extend these algorithms for the nonlinear dynamic model of a Bluerov robot in an iterative design process. Then we have integrated a Radial Basis Function neural network, already proven in convergence and stability, with the algebraic controller to estimate and compensate for uncertainties in the robot model. Finally, we have presented simulation results and real basin tests to validate the proposed concepts. This work also aims to convert a remotely operated ROV into an autonomous ROV-AUV hybrid
2
Britto, Ricardo de Sousa. "Uma arquitetura distribu?da de hardware e software para controle de um rob? m?vel aut?nomo". Universidade Federal do Rio Grande do Norte, 2008. http://repositorio.ufrn.br:8080/jspui/handle/123456789/15188.
Texto completoResumen
Made available in DSpace on 2014-12-17T14:55:05Z (GMT). No. of bitstreams: 1
RicardoSB.pdf: 513523 bytes, checksum: a7e284b7570e2b02e306ed0d667aab6c (MD5)
Previous issue date: 2008-01-25Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior
In this work, we present a hardware-software architecture for controlling the autonomous mobile robot Kapeck. The hardware of the robot is composed of a set of sensors and actuators organized in a CAN bus. Two embedded computers and eigth microcontroller based boards are used in the system. One of the computers hosts the vision system, due to the significant processing needs of this kind of system. The other computer is used to coordinate and access the CAN bus and to accomplish the other activities of the robot. The microcontroller-based boards are used with the sensors and actuators. The robot has this distributed configuration in order to exhibit a good real-time behavior, where the response time and the temporal predictability of the system is important. We adopted the hybrid deliberative-reactive paradigm in the proposed architecture to conciliate the reactive behavior of the sensors-actuators net and the deliberative activities required to accomplish more complex tasks
Neste trabalho ? apresentada uma arquitetura de hardware e software para controle do rob? m?vel aut?nomo Kapeck. O hardware do rob? Kapeck ? composto por um conjunto de sensores e atuadores organizados em um barramento de comunica??o CAN. Dois computadores embarcados e oito placas microcontroladas foram utilizadas no sistema. Um dos computadores foi utilizado para o sistema de vis?o, devido ? grande necessidade de processamento deste tipo de sistema. O outro computador foi utilizado para coordenar e acessar o barramento CAN e realizar as outras atividades do rob?. Placas microcontroladas foram utilizadas nos sensores e atuadores. O rob? possui esta configura??o distribu?da para um bom desempenho em tempo-real, onde os tempos de resposta e a previsibilidade temporal do sistema s?o importantes. Foi seguido o paradigma h?brido deliberativo-reativo para desenvolver a arquitetura proposta, devido ? necessidade de aliar o comportamento reativo da rede de sensores-atuadores com as atividades deliberativas necess?rias para realizar tarefas mais complexas
Capítulos de libros sobre el tema "Hybrid AUV/ROV"
1
Mehbodniya, Abolfazl, Julian L. Webber, Ravi Kumar y Manikandan Ramachandran. "Designing Machine Learning-Based Variable-Order Bayesian Network in Predicting Sudden Cardiac Arrest and Death". En Leveraging AI Technologies for Preventing and Detecting Sudden Cardiac Arrest and Death, 166–90. IGI Global, 2022. http://dx.doi.org/10.4018/978-1-7998-8443-9.ch008.
Texto completoResumen
Recent surveys suggest that the majority of the world's population is unconcerned with their health. Aside from a hectic lifestyle, research reveals that stress is also a component in the development of many diseases. Sudden cardiac arrest and death (SCD) is a major public health concern that jeopardizes patient safety. As a result, detecting such illnesses only by ECG is difficult. The Bayesian Dirichlet equivalence score, AIC (akaike information criterion), and MDL (maximum description length) scores make up the variable-order Bayesian network (VOBN). On the basis of HRV (heart rate variability) acquired from ECG and using a hybrid classifier to identify SCD patients from normal patients, this study predicts sudden cardiac arrest before it occurs within 30 minutes. The validity of the suggested study is checked using the physionet database of cardiac patients and normal people, as well as the Cleveland dataset. The proposed method achieves 97.1% accuracy, 96.2% precision, 89.8% recall, 84.82% F1-score, 54.66% AUC, and 45.92% ROC, according to the results.
2
R., Maheswari, Prasanna Sundar Rao, Azath H. y Vijanth S. Asirvadam. "Hybrid Deep Learning Models for Effective COVID -19 Diagnosis with Chest X-Rays". En Structural and Functional Aspects of Biocomputing Systems for Data Processing, 98–123. IGI Global, 2023. http://dx.doi.org/10.4018/978-1-6684-6523-3.ch005.
Texto completoResumen
The survey on COVID-19 test kits RT-PCR (reverse transcription-polymerase chain reaction) concludes the hit rate of diagnosis and detection is degrading. Manufacturing these RT-PCR kits is very expensive and time-consuming. This work proposed an efficient way for COVID detection using a hybrid convolutional neural network (HCNN) through chest x-rays image analysis. It aids to differentiate non-COVID patient and COVID patients. It makes the medical practitioner to take appropriate treatment and measures. The results outperformed the custom blood and saliva-based RT-PCR test results. A few examinations were carried out over chest X-ray images utilizing ConvNets that produce better accuracy for the recognition of COVID-19. When considering the number of images in the database and the COVID discovery season (testing time = 0.03 s/image), the design reduced the computational expenditure. With mean ROC AUC scores 96.51 & 96.33%, the CNN with minimised convolutional and fully connected layers detects COVID-19 images inside the two-class COVID/Normal and COVID/Pneumonia orders.
3
Rabe, Liagro Charles. "Le nouchi: une langue au carrefour des langues". En Les parlers urbains africains au prisme du plurilinguisme : description sociolinguistique, 299–312. Observatoire européen du plurilinguisme, 2019. http://dx.doi.org/10.3917/oep.kosso.2019.01.0299.
Texto completoResumen
Résumé Sorte d’argot crypté, le nouchi se caractérise essentiellement par son originalité ontologique et lexicale qui consacre une immense palette de modalités créatrices. Nataša Raschi affirme d’ailleurs à ce propos que « ce qui semble être spécifique du nouchi, a trait au lexique utilisé qui, de par son hétérogénéité, constitue nécessairement la partie la plus savoureuse » 1 . Cette « hétérogénéité [lexicale] » fait sans doute penser, entre autre, à la création de mots hybrides dont le nouchi est parsemé. Baigné qu’il est par le flux « des emprunts massifs aux langues ivoiriennes et non ivoiriennes » 2 , le vocabulaire « nouchien », si l’on veut bien recevoir cette lexie comme ce qui vient du nouchi, appelle à une réflexion sur les procédés linguistiques au moyen desquels s’opère cette « relexification » 3 à partir desdits emprunts. Apparaît alors la nécessité de démêler les alternances et, toutes nuances bien honorées, les mélanges codiques. Plus simplement, à partir de propos oraux divers et d’extraits de compositions musicales d’artistes ivoiriens, les configurations lexicales du nouchi sont questionnées, ce qui rend saillantes les formes de cohabitation linguistique qu’abrite ce parler ivoirien. Ainsi, c’est dans une perspective énonciative qui embrasse le lexique dans le jeu de la description compositionnelle et dérivationnelle que les structures morphosyntaxiques du nouchi sont interrogées.
Actas de conferencias sobre el tema "Hybrid AUV/ROV"
1
Johansson, Bert, Jan Siesjo y Marcus Furuholmen. "Seaeye Sabertooth A Hybrid AUV/ROV offshore system". En 2010 OCEANS MTS/IEEE SEATTLE. IEEE, 2010. http://dx.doi.org/10.1109/oceans.2010.5663842.
Texto completo
2
Johansson, Bert, Jan Siesjo y Marcus Furuholmen. "Seaeye Sabertooth, A Hybrid AUV/ROV Offshore System". En SPE Offshore Europe Oil and Gas Conference and Exhibition. Society of Petroleum Engineers, 2011. http://dx.doi.org/10.2118/146121-ms.
Texto completo
3
Cruz, Nuno A., Anibal C. Matos, Rui M. Almeida, Bruno M. Ferreira y Nuno Abreu. "TriMARES - A hybrid AUV/ROV for dam inspection". En OCEANS 2011. IEEE, 2011. http://dx.doi.org/10.23919/oceans.2011.6107314.
Texto completo
4
Siesjoe, Jan. "An Underwater Robotics Platform for Hybrid AUV/ROV Systems". En Offshore Technology Conference. Offshore Technology Conference, 2018. http://dx.doi.org/10.4043/28900-ms.
Texto completo
5
Martins, Alfredo, Jose Almeida, Carlos Almeida, Bruno Matias, Stef Kapusniak y Eduardo Silva. "EVA a Hybrid ROV/AUV for Underwater Mining Operations Support". En 2018 OCEANS - MTS/IEEE Kobe Techno-Ocean (OTO). IEEE, 2018. http://dx.doi.org/10.1109/oceanskobe.2018.8558880.
Texto completo
6
Glenn, Casey. "Next Generation Building Blocks of an Autonomous Subsea Vehicle". En Offshore Technology Conference. OTC, 2023. http://dx.doi.org/10.4043/32520-ms.
Texto completoResumen
Abstract The development of new resident and autonomous underwater vehicles (AUVs) has been enabled thanks to advances in secure and reliable Ethernet communication networks, software, batteries, and positioning sensors. Applying these technologies through a joint project between Oceaneering, an engineering services company, and multiple oil and gas operators, a new hybrid AUV/ROV system has been developed to optimize the delivery of pipeline inspection services and pave the way for future geophysical survey and resident AUV/ROV applications. The vehicle comprises modules that connect to a next-generation distributed controls system, which increases flexibility by offering plug and play capabilities. The hybrid vehicle underwent more than two years of qualifications and testing at the Oceaneering Living Lab in Tau, Norway, and offshore in the North Sea, where components like software, sensors, and batteries were rigorously tested. After years of in-water testing, the vehicle surpassed TRL 6 requirements for pipeline survey and inspection scopes. The unit can work as an ROV or operate in an autonomous and tetherless AUV configuration, with a working range of 120 km, a working depth rating of 6000 msw, top speed of 3 m/s, and sufficient reliability to support subsea deployment up to six months. The hybrid AUV/ROV has demonstrated the ability to carry out low-altitude inspection and survey on pipelines of different diameters. It can track pipelines at 3 m to 5 m altitude from the seabed, providing high-resolution survey data, and at 8 m altitude for reconnaissance and seabed mapping. The vehicle control software includes specific behaviors to locate burial, crossing, and free span events and to maximize data acquisition value. This new hybrid AUV/ROV is outfitted with high-specification instruments, such as an inertial navigation system, laser scanning system, and multibeam sonar technology, that enable it to achieve unprecedented pipeline tracking within a close proximity to the pipe. Additional hardware modifications are planned to expand the breadth of the vehicle's capabilities to include cathodic protection readings, cleaning operations, and light intervention. This paper explains the building-block development concept and describes the individual modules that make up the new AUV/ROV. It presents the challenges encountered in creating this innovative vehicle and explains how issues were resolved as well as the methodology behind solving them.
7
Cheramie, Jami y Alan Anderson. "Developing the Next Generation of Pipeline Inspection AUV". En Offshore Technology Conference. OTC, 2023. http://dx.doi.org/10.4043/32559-ms.
Texto completoResumen
Abstract The offshore industry needs reliable remotely controlled assets to carry out a range of critical services subsea. ROVs and AUVs have performed these tasks for some time, but as operations venture into deeper and more demanding environments, operators are looking for tools with more capabilities that can function with less human intervention. AUVs have been used for years in place of ROVs to acquire inspection data because they are not tethered to a vessel and can complete preplanned missions without direct control from a pilot. In many cases, an AUV is less costly to deploy and recover than a typical ROV, requires less vessel time on site and can be supported by fewer personnel. Normally, engineers program the AUV's trajectory and mission before a dive, deploy the unit, and download the data for processing and analysis when the dive has been completed. Although AUVs have proven valuable, their usefulness is restricted because of the performance limitations of traditional designs. Torpedo-shaped AUVs can follow a pipeline but because they cannot stop and hover or orbit when anomalies are spotted or when instrument measurements are unclear, they cannot gather all the precise data needed for a pipeline engineer to assess the condition of a pipeline. Oceaneering established an AUV development program to address the limitations of existing designs and to introduce the ability to hover and improve maneuverability. The goal was to produce an AUV capable of delivering high-speed acquisition of the high-quality data normally only obtained by using an ROV. The team understood that, as with all technology development programs, transforming its ambitious development plans into a viable commercial product would be challenging and reached out to engage industry partners. The Freedom program, which has spanned a period of eight years, was supported from the outset by TotalEnergies and ChevronETC and at a later stage of development they were joined by Equinor. The result of this collaborative effort is Freedom™, a hybrid AUV/ROV system that performs accurate, high-speed, single-pass, close-proximity inspections. This project has helped establish a new methodology that expedites development, testing, validation, and approval of technology, involving operators from inception through deployment to provide a high level of comfort to them for adopting serial-number-one technology. This paper explains how that methodology was developed and how it provides a way to expedite product development that aligns with industry needs and simplifies commercialization.
8
Hornfeld, Willi. "SeaWolf: The Development Status of a Medium Sized HAUV". En ASME 2008 27th International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2008. http://dx.doi.org/10.1115/omae2008-57052.
Texto completoResumen
The SeaWolf is beside the UUV’s SeaFox and SeaOtter one of the core vehicles of the ATLAS UUV family. It is an HAUV (Hybrid Autonomous Underwater Vehicle) which can be used completely autonomous (AUV) or, equipped with a broadband fibre-optic cable connection to the surface, as an ROV respective as a semi AUV. Such a connection permits both, a total human control of the vehicle or solely an online data transfer from the vehicle to the control station and vice versa. The system is based on its general design philosophy on the small and very successful underwater vehicle SeaFox, which is sold over 2000 times. An outstanding SeaWolf characteristic is its ability to operate alone or in a team whereas its autonomy varies from fully autonomous, i.e. independently of the other team members, to an absolute dependency, i.e. under complete control of one or more team members. The level of the so called Adaptive Autonomy depends thereby on the mission complexity for the team or for the individual member. The SeaWolf is medium sized with 2m length and 50cm maximum diameter. Its weight is between 100kg and 110kg with 30kg payload included. The payload can be a customer specific configuration and will be integrated into the vehicle by plug and play. The quality of the navigation system is selectable by the customer as well. It reaches from a simple TCM based unit up to a DVL and GPS supported high performance inertial measurement unit. The vehicle’s maximum speed is 8kts and with the aid of 5 propulsion devices, not only operating in current but also a high manoeuvrability is guaranteed. The SeaWolf is designed for 300m diving depth, with an option for 600m. Its application scope extends from of all kinds of underwater inspection and monitoring, over scientific applications up to the use in the security area. The paper shows the SeaWolf involvement in the UUV family, deals with the used technologies and shows selected applications from the maritime security domain.
9
Massari, Giovanni, Cristina Marras y Francesco Cavallini. "How Underwater Drones Can Promote the Environmental Sustainability of Offshore Natural Resources Exploitation". En Offshore Technology Conference. OTC, 2023. http://dx.doi.org/10.4043/32481-ms.
Texto completoResumen
Abstract As the world shifts at fast pace towards new energy scenarios, the offshore environment is attracting extensive new project developments that pose new challenges in the management and the protection of marine ecosystems. In parallel, the recent geopolitical situation has exposed the compelling need to guarantee the integrity of subsea critical energy infrastructure calling for new paradigms to efficiently perform complex periodic inspections and intervention tasks. All these factors are driving a rapid evolution of subsea robotics, enabled by the advancement of emerging technologies, such as artificial intelligence, which have now reached a sufficient maturity level for industrial deployment. Within these innovation scenarios, underwater intervention / inspection drones (UIDs) are rising to offer the most promising answers to the needs of the offshore industry. This new family of underwater robots presenting AUV/ROV hybrid capabilities, enable new attractive operational paradigms that are already being positively recognized by the offshore industry. The use of UIDs, particularly when permanently integrated into fields (topside or as subsea resident) could greatly contribute to reducing the costs and risks normally associated with subsea inspection activities. The scope of this paper is to offer an overview of UIDs and provide the necessary elements to take full advantage of this technology, supporting the environmental sustainability of future offshore projects and activities. The investigation provided, explores conventional applications for oil and gas and then extends to future new energies, deep-sea mining and CO2 capture and storage projects. The analysis starts from UIDs state-of-the-art technology and moves to explore possible application scenarios in the attempt to anticipate possible solutions and related technical gaps.
10
Immas, Alexandre, Chong Hang Fong, Rebecca Sung, James Liao y Mohammad-Reza Alam. "Man-Portable Hybrid Unmanned Underwater Vehicle With High-Bandwidth Wireless Communication". En ASME 2022 41st International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/omae2022-81477.
Texto completoResumen
Abstract Commercial underwater robotic vehicles can be categorized into Remotely Operated Vehicle (ROVs) connected to a support vessel with a tether or Autonomous Underwater Vehicles (AUVs) pre-programmed to fulfill a mission. We present in this work a man-portable Unmanned Underwater Vehicle (UUV) which is semi-autonomous, thus contributing to fill the gap between the two extreme levels of autonomy at which ROVs and AUVs operate. We define semi-autonomous operations as autonomous operations supervised in real-time by a human operator who can interact with the UUV at any time to conduct a specific task or to change the UUV’s mission. This type of operations is enabled by hybrid capabilities, defined as a UUV’s ability to be remotely operated or autonomous, and by high-bandwidth wireless communication to allow a human operator to supervise and interact with the UUV. Path following capabilities are provided to the UUV by implementing an Adaptive Feedback Linearization Controller in its autopilot firmware. The resulting hybrid capabilities and the performance of the control scheme are presented using a Software In The Loop simulator. High-bandwidth wireless communication is achieved by equipping the UUV with a LED modem and a Pan-Tilt system to maintain Line of Sight communication with another stationary LED modem connected to a topside station. Experimental tests in a wave tank showed that a 3.5Mbps full duplex wireless optical link could be set up over 7m and maintained despite the motion of the UUV.