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Search results for: unmanned maritime vehicles
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Estimation of Average Speed of Road Vehicles by Sound Intensity Analysis
PublicationConstant monitoring of road traffic is important part of modern smart city systems. The proposed method estimates average speed of road vehicles in the observation period, using a passive acoustic vector sensor. Speed estimation based on sound intensity analysis is a novel approach to the described problem. Sound intensity in two orthogonal axes is measured with a sensor placed alongside the road. Position of the apparent sound...
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Detection of vehicles stopping in restricted zones in video from surveillance cameras
PublicationAn algorithm for detection of vehicles that stop in restricted areas, e.g. excluded by traffic rules, is proposed. Classic approaches based on object tracking are inefficient in high traffic scenes because of tracking errors caused by frequent object merging and splitting. The proposed algorithm uses the background subtraction results for detection of moving objects, then pixels belonging to moving objects are tested for stability....
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Aspects of maritime security and safety of Poland
PublicationReferat przedstawia wybrane aspekty morskiego bezpieczeństwa Polski. Prezentacja problematyki jest ukierunkowana na problemy techniczne związane z bezpieczeństwem, pozostawiając na uboczu problemy prawne, logistyczne i społeczne. Na wstępie przedstawiono analizę zagrożeń dla bezpieczeństwa Bałtyku. Następnie opisano wybrane instytucje odpowiedzialne za morskie bezpieczeństwo Polski, ze szczegółowym uwzględnieniem Morskiej Straży...
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Dimensioning the Navigational Safety in Maritime Transport
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Detection and segmentation of moving vehicles and trains using Gaussian mixtures, shadow detection and morphological processing
PublicationSolution presented in this paper combines background modelling, shadow detection and morphological and temporal processing into one system responsible for detection and segmentation of moving objects recorded with a static camera. Vehicles and trains are detected based on their pixellevel difference from the continually updated background model utilizing a Gaussian mixture calculated separately for every pixel. The shadow detection...
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Intelligent Autonomous Vehicles Cup 2018
EventsPierwsza edycja zawodów bezzałogowych, autonomicznych pojazdów latających i jeżdżących.
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Integration and Visualization of the Results of Hydrodynamic Models in the Maritime Network-Centric GIS of Gulf of Gdansk
PublicationEnsuring of security in the coastal area makes on a seaside countries research in the field of infrastructure spatial information of environmental data. The paper presents the results of work on the construction of this infrastructure by integrating electronic navigational chart with ortophotomaps of coastal areas as well as numerical data from weather and hydrodynamic models. Paper focuses on a problems associated with creating...
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Expert opinion on the effectiveness of protection against electric shock in case of fault in an installation for electric vehicles charging
PublicationThe opinion concerns the use of residual current devices for protection against electric shock by automatic disconnection of supply in a Norwegian installation intended for charging of electric vehicles.
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Determination of Vehicles Load Equivalency Factors for Polish Catalogue of Typical Flexible and Semi-rigid Pavement Structures
PublicationThe new Polish Catalog of Typical Flexible and Semi-rigid Pavement Structures was introduced to use in practice in 2014. Much of works were focused on actualization of vehicles load equivalency factors. For this purpose data delivered from weigh-inmotion were analyzed. Four methods of determination of load equivalency factors for pavement structure design were compared. The analysis showed that fourth power equation, AASHTO 1993...
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Unmanned mine counter systems for South Baltic conditions.
PublicationPrzedstawiono warunki środowiskowe panujące na Bałtyku Południowego oraz opracowane w Polsce systemy przeciwminowe oparte na bezzałogowych statkach głębinowych. System głębinowy pk. ''Ukwiał'' wykorzystuje zdalnie sterowany, zasilany kablem statek głębinowy do przenoszenia ładunków wybuchowych. Jako alternatywne rozwiązanie przedstawiono urządzenie jednorazowego użytku w postaci statku głębinowego z obrotową głowicą bojową....
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Side Fins Performance in Biomimetic Unmanned Underwater Vehicle
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IEEE Transactions on Intelligent Vehicles
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Journal of Intelligent and Connected Vehicles
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International Journal of Intelligent Unmanned Systems
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Examining Impact of Speed Recommendation Algorithm Operating in Autonomous Road Signs on Minimum Distance between Vehicles
PublicationAn approach to a new kind of recommendation system design that suggests safe speed on the road is presented. Real data obtained on roads were used for the simulations. As part of a project related to autonomous road sign development, a number of measurements were carried out on both local roads and expressways. A speed recommendation model was created based on gathered traffic data employing the traffic simulator. Depending on...
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Injuries to Users of Single-Track Vehicles
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Classifying type of vehicles on the basis of data extracted from audio signal characteristics
PublicationThe aim of this study is to find and optimize a feature vector for an automatic recognition of the type of vehicles, extracted form an audio signal. First, the influence of weather-based conditions of road surface on spectral characteristic of the audio signal recorded from a passing vehicle in close proximity to the road is discussed. Next, parameterization of the recorded audio signal is performed. For that purpose, the MIRtoolbox,...
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Dynamic GNSS Mission Planning Using DTM for Precise Navigation of Autonomous Vehicles
PublicationNowadays, the most widely used method for estimating location of autonomous vehicles in real time is the use of Global Navigation Satellite Systems (GNSS). However, positioning in urban environments using GNSS is hampered by poor satellite geometry due to signal obstruction created by both man-made and natural features of the urban environment. The presence of obstacles is the reason for the decreased number of observed satellites...
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Parametric method for determination of motion characteristics of underwater vehicles, applicable in preliminary designing.
Publicationartykuł zawiera opis metody wstępnego projektowania autonomicznych pojazdów podwodnych (auv), przydatnej szczególnie w przypadku, gdy w założeniach projektowych stawiane są wymogi dotyczące parametrów kinematyczno-dynamicznych ruchu pojazdu. koncepcja metody zasadza się na równaniach dynamiki opisujących ruch płaski pojazdu w kierunku poziomym i pionowym, wywołanych odpowiednio napędem śrubowym lub balastem wodnym. równania ruchu...
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A method for ice-aware maritime route optimization
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Wybrane problemy ochrony żeglugi (Maritime Security)
Publicationprzedstawiono zagadnienia ochrony żeglugi w aspekcie uwarunkowań związanych z radiokomunikacją morską. Opisano Międzynarodowy Kodeks Ochrony Statków i Urządzeń Portowych - ISPS (International Ship and Port Facility Security Code) i Statkowy System Alarmowania - SSAS (Ship Security Alert System) oraz także scharakteryzowano system AIS (Automated Information System) i System Identyfikacji i Śledzenia Dalekiego Zasięgu - LRIT (Long...
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M2M communications system proposal for maritime applications
PublicationThis article describes the proposal to use the M2M communication to enhance the safety of people, ships and other marine infrastructure, in broadly defined marine systems. In addition, there are numerous examples of planned solutions to be implemented in the near future as well as new services. The proposal for M2M communication system architecture is described below. In addition, the use of the STRUGA system radio interface as...
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Transactions on Maritime Science-ToMS
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Scientific Journals of the Maritime University of Szczecin
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Selecting cost-effective risk control option for advanced maritime operations; Integration of STPA-BN-Influence diagram
PublicationAdvanced maritime operations, such as remote pilotage, are vulnerable to new emergent risks due to increased system complexity and a multitude of interactions. Thus, maritime researchers this decade have combined Systems-Theoretic Process Analysis (STPA) and Bayesian Network (BN) to effectively manage these risks. Although these methods are effective in identifying hazards and analyzing risk levels, none of the STPA-BN studies...
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Towards the Development of a Risk Model for Unmanned Vessels Design and Operations
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Journal of Maritime Archaeology
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Maritime Economics & Logistics
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Maritime Policy & Management
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Journal for Maritime Research
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Maritime Business Review
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Journal of Maritime Research
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Maritime Transport Research
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Style Transfer for Detecting Vehicles with Thermal Camera
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Emission of CO2 and Fuel Consumption for Automotive Vehicles
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Dynamics of Railway Vehicles Movement on Transition Curves
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Style Transfer for Detecting Vehicles with Thermal Camera
PublicationIn this work we focus on nighttime vehicle detection for intelligent traffic monitoring from the thermal camera. To train a Convolutional Neural Network (CNN) detector we create a stylized version of COCO (Common Objects in Context) dataset using Style Transfer technique that imitates images obtained from thermal cameras. This new dataset is further used for fine-tuning of the model and as a result detection accuracy on images...
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Method for determining of shallow water depths based on data recorded by UAV/USV vehicles and processed using the SVR algorithm
PublicationBathymetric measurements in waters shallower than 1 m are necessary to monitor seafloor relief changes in the coastal zone. This is especially important for ensuring the safety of navigation, navigation efficiency, as well as during the design and monitoring of hydrotechnical structures. Therefore, the aim of this article is to present a method for determining of shallow water depths based on data recorded by Unmanned Aerial Vehicle...
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Potential reduction of traffic noise by the means of increased fleet of electric vehicles using a combination of low-noise tyres and low-noise road surfaces
PublicationIn the future, the number of zero-emission vehicles like electric and plug-in hybrid vehicles (in electric mode) is expected to be a substantial part of the vehicle fleet. In Norway, such vehicles already account for approximately 20 % of all new cars sold. Since these vehicles emit negligible noise related to the power-train, the tyre/road noise is the dominating noise source. In the LEO project, tyres designed for such cars have...
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Perfecting the Maritime Navigation information services of the European Union
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Uncertainty in maritime risk analysis: Extended case study on chemical tanker collisions
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International Journal of Micro Air Vehicles
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International Journal of Electric and Hybrid Vehicles
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SAE International Journal of Commercial Vehicles
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SAE International Journal of Electrified Vehicles
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Giżycko 2017- video data - pedestrian, bicycles, vehicles
Open Research DataGiżycko 2017- video data - pedestrian, bicycles, vehicles
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Legionów 2020 - video data - pedestrian, bicycles, vehicles
Open Research DataLegionów 2020 - video data - pedestrian, bicycles, vehicles
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Więcbork 2020 - video data - pedestrian, bicycles, vehicles
Open Research DataWięcbork 2020 - video data - pedestrian, bicycles, vehicles
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Use of magnetic monitoring of vehicles for proactive strategy development
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The identification of operational cycles in the monitoring systems of underground vehicles
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