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Wyszukujesz frazę "system operation" wg kryterium: Temat


Wyświetlanie 1-14 z 14
Tytuł:
Design of an autonomous transport system for coastal areas
Autorzy:
Łebkowski, A.
Powiązania:
https://bibliotekanauki.pl/articles/116973.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
autonomous vehicles
coastal area
autonomous transport system
anmanned units
ghost ships
autonomous electric powered vessels
electric propulsion system
autonomous system operation
Opis:
The article presents a project of an autonomous transport system that can be deployed in coastal waters, bays or between islands. Presented solutions and development trends in the transport of autonomous and unmanned units (ghost ships) are presented. The structure of the control system of autonomous units is discussed together with the presentation of applied solutions in the field of artificial intelligence. The paper presents the concept of a transport system consisting of autonomous electric powered vessels designed to carry passengers, bikes, mopeds, motorcycles or passenger cars. The transport task is to be implemented in an optimal way, that is, most economically and at the same time as safe as possible. For this reason, the structure of the electric propulsion system that can be found on such units is shown. The results of simulation studies of autonomous system operation using simulator of marine navigational environment are presented.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2018, 12, 1; 117-124
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Integrated Communications System for the Remote Operation of Unmanned Aerial Vehicle
Autorzy:
Kurek, K.
Keller, T.
Modelski, J.
Yashchyshyn, Y.
Pastuszak, G.
Darmetko, M.
Bajurko, P.
Powiązania:
https://bibliotekanauki.pl/articles/116567.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
communication system
remote operation
wireless system
Opis:
The aim of the paper is to present the concept of the integrated system dedicated for communication and remote operation of the unmanned aerial vehicle (UAV). In the paper the concept and realization of this kind of wireless communications system is presented. The system consists of two integrated solutions – unidirectional broadcast transmission of video, audio and data from UAV to the operators within the mobile command centre and two‐way communication with the telemetry and control subsystem. The systems are integrated within the single chassis and placed on the UAV to ensure proper operation of the flying robot. The specific elements of the system are presented as well as main requirements and connected with them development methods are also discussed in the paper.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2013, 7, 2; 235-242
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hands-on Software Engineering Labs via the Web: Game Changing in Online Education
Autorzy:
Zalewski, J.
Powiązania:
https://bibliotekanauki.pl/articles/950404.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
remote operation
wireless system
remote laboratory
Opis:
The paper addresses the issue of offering hands‐on engineering labs via the web. The hands‐on feature refers to the functionality of the lab, which is preserved whether the lab experiments are done over the web or with student’s physical presence in the lab. After an extensive review of remote labs, examples of lab stations are described from the area of software engineering, where software development is done remotely and then software modules are uploaded and tested on the lab stations. This type of lab can be called invasive, since the essential element of an experiment is the replacement or modification of the software module controlling the remote equipment. This is in contrast to regular remote labs, which are non‐invasive. Two lab stations are presented in more detail, one for a wireless sensor network and another for a remotely accessible microcontroller. Several observations are made regarding the usefulness of this technology and prospects of adoption in software engineering programs.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2013, 7, 2; 243-250
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of the concept of the new methodology for the evaluation of ship planned maintenance system
Autorzy:
Stanivuk, T.
Stazić, L.
Vidović, F.
Bratić, K.
Powiązania:
https://bibliotekanauki.pl/articles/2063953.pdf
Data publikacji:
2021
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
ship operation problems
maintenance system
Planned Maintenance System
assessment process
expert opinion
onboard maintenance
Opis:
The paper presents an attempt to develop better and cheaper methodology for evaluation of the quality of the ships’ computerized Planned Maintenance System databases. A concept for the better methodology has been developed following many times verified rule that faster and cheaper is better. The concept of the methodology has been checked in operation, tested on four different databases. Results of the evaluation performed by the concept are compared with an expert evaluation using old, verified methodology, performed on same databases. Comparison valuated the concept, bringing the verdict if it is functioning or not, showing that the old and verified rule is not functioning every time.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2021, 15, 3; 739--742
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Study of Correlation between Fishing Activity and AIS Data by Deep Learning
Autorzy:
Shen, K. Y.
Chu, Y. J.
Chang, S. J.
Chang, S. M.
Powiązania:
https://bibliotekanauki.pl/articles/1841621.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
AIS Data
deep learning framework
learning methods
Recurrent Neural Network
(RNN)
Automatic Identification System
(AIS)
fishing operation
Opis:
Previous researches on the prediction of fishing activities mainly rely on the speed over ground (SOG) as the referential attribute to determine whether the vessel is navigating or in fishing operation. Since more and more fishing vessels install Automatic Identification System (AIS) either voluntarily or under regulatory requirement, data collected from AIS in real time provide more attributes than SOG which may be utilized to improve the prediction. To be specific, the ships' trajectory patterns and the changes in course become available and should be considered. This paper aims to improve the accuracy in the identification of fishing activities. First, we do feature extraction from the AIS data of coastal waters around Taiwan and build a Recurrent Neural Network (RNN) model. Then, the activity data of fishing vessels are divided into fishing and non-fishing. Finally, based on the testing by feeding various fishing activity data, we can identify the fishing status automatically.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2020, 14, 3; 527-531
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development of telexistence on a ship by using satellite communication
Autorzy:
Sasaki, S.
Okazaki, T.
Powiązania:
https://bibliotekanauki.pl/articles/117499.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
communication
Global Maritime Distress and Safety System (GMDSS)
Satellite Communications
one person bridge operation
telexistence
telexistence on a ship
remote maneuvering system
unmanned ship
Opis:
Nowadays shipping industry has problems such as reduction of mariners, aging of mariners, and labor expenses. To solve the problems, One Person Bridge Operation was developed as navigation supporting system. However, One Person Bridge Operation remained technological problems and one man error. Therefore, in this study, telexistence on a ship was proposed by using satellite communication. Telexistence on a ship is a concept of maneuvering between land and ship with at least two mariners such as navigation officer and helmsman. Navigation officer works on ship as usual and helmsman supports ship from land. In this paper, remote maneuvering system was developed as the first step of telexistence on a ship. For evaluating the effectiveness, ship experiment was carried out. From the result, navigation officer and helmsman could alter ship’s course to 20 degrees within 60 seconds and less than 5% overshoot in the proposed remote maneuvering system.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2017, 11, 1; 175-180
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Drag and Torque on Locked Screw Propeller
Autorzy:
Tabaczek, T.
Bugalski, T.
Powiązania:
https://bibliotekanauki.pl/articles/117621.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Ship Operation
Locked Screw Propeller
Propulsion System
Propeller Drop
Propeller Torque
CFD Computations
Hydrodynamics
Sailboat Fixed Blade Propeller
Opis:
Few data on drag and torque on locked propeller towed in water are available in literature. Those data refer to propellers of specific geometry (number of blades, blade area, pitch and skew of blades). The estimation of drag and torque of an arbitrary propeller considered in analysis of ship resistance or propulsion is laborious. The authors collected and reviewed test data available in the literature. Based on collected data there were developed the empirical formulae for estimation of hydrodynamic drag and torque acting on locked screw propeller. Supplementary CFD computations were carried out in order to prove the applicability of the formulae to modern moderately skewed screw propellers.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2014, 8, 3; 441-447
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Estimating Manoeuvres Safety Level of the Unity Line m/f “Polonia” Ferry at the Port of Ystad
Autorzy:
Kowalski, A.
Powiązania:
https://bibliotekanauki.pl/articles/116981.pdf
Data publikacji:
2009
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Ferry, Manoeuvring
Port of Ystad
Port of Swinoujscie
Pilot Navigation
Mooring Operation
Meteorological Aspects
Ferry Nautical Anti-collision System (FNAS)
Opis:
Briefly characteristic of m/f „Polonia" ferry has been presented. For the port of Ystad, topographical, hydro and meteorological conditions have been described. Moorings of the “Polonia” ferry at the port of Ystad have been discussed. Researches based on experts’ questionnaire and statistical methods of analyses have been exemplified. Finally there are some conclusions concerning improvements of ferries manoeuvres safety.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2009, 3, 4; 367-372
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of 3-D Velocity Measurement of Vessel by VI-GPS for STS Lightering
Autorzy:
Yoo, Y.
Pedersen, E.
Tatsumi, K.
Kouguchi, N.
Arai, Y.
Powiązania:
https://bibliotekanauki.pl/articles/117175.pdf
Data publikacji:
2009
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Global Navigation Satellite System (GNSS)
Global Positioning System GPS
Vessel Velocity
STS Lightering
3D Velocity Measurement
Ship-to-Ship (STS) Operation
Liquefied Natural Gas (LNG)
Kinematic GPS (KGPS)
Opis:
A lightering operation is a type of Ship-To-Ship (STS) operation where two ships are together in open waters and transfer the cargo e.g. crude oil, LNG. High skills and experience are required by the human operators as no relevant equipment for determining the relative speeds and distances with sufficient accuracies has been implemented. The officer in charge of an STS lightering takes the decision on adequate maneuvering orders based on predominantly visual observations during the final approach. Landing on all fenders simultaneously is an objective in order to minimize ship-fender contact forces, but this is rather difficult to achieve in practice even in calm sea due to the effect of hydrodynamic interaction when the ships are closing in. Furthermore, currents that are present in the lightering zone add to the operational complexity. A field measurement experiment has been carried out with a Velocity Information GPS (VI-GPS) system installed onboard a ferry approaching port for berthing which is similar to an STS lightering. The paper proposes to apply VI-GPS as input sensor to a decision-support and guidance system aiming to provide accurate velocity information to the officer in charge of an STS operation. It is argued that DOP of VI-GPS is related to the velocity error.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2009, 3, 1; 43-48
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Next generation of physics-based system for port planning and efficient operation
Autorzy:
Mortensen, S. B.
Harkin, A.
Kofoed-Hansen, H.
Mlaś, W.
Powiązania:
https://bibliotekanauki.pl/articles/116540.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
port operations
efficient operation
port planning
under keel clearance (UKC)
full mission bridge simulator (FMBS)
force technology
traffic management system
port traffic flow
Opis:
The continuing surge in commercial vessel sizes is putting increasing pressures on the world’s port authorities to adopt effective expansion strategies to ensure that their asset is able to meet growing capacity demands. Among the key challenges is to assure that correct strategic planning and operational measures are adopted to guarantee safe and efficient traffic not only through its shipping channel, but also at the port berthing facilities. DHI and FORCE TECHNOLOGY have collaborated to develop a novel physics-based vessel traffic management system named NCOS ONLINE. It is capable of taking into account of any relevant vessel constraints such as under-keel clearance (UKC), maneuverability and berth configuration that may constrict the movement of vessels through the channel or operability at berth, facilitating scenario planning and capacity assessment of proven unparalleled accuracy. The system incorporates the accuracy of high-end Full Mission Bridge Simulators with regards to vessel response under power and at berth. The underlying computational engines uses a powerful 3D panel method for vessel response calculations in combination with highly detailed environmental data such as wind, waves and hydrodynamics (water level and currents) simulated by use of MIKE Powered by DHI’s recognized and scientific based computational models. The modular and integrated framework-based system has already been adopted by numerous port authorities, terminal operators and pilots worldwide for strategic port planning, design and 24/7 operational vessel traffic management. The paper focus on presenting the underlying equational framework and validation of the underlying physical response engines and provide a brief introduction to how they are integrated and operated through a series of user-friendly web dashboards.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2019, 13, 1; 99-105
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Improving preparedness for shipborne oil pollution – highlights of tabletop exercises at saimaa inland waters
Autorzy:
Halonen, J.
Altarriba, E.
Powiązania:
https://bibliotekanauki.pl/articles/117527.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
oil spill
oil pollution
shipborne oil pollution
MET system in Finland
oil spill response
response operation
pollution preparedness and response (PPR)
marine environment
Opis:
Lake Saimaa is the largest lake in Finland and the Saimaa inland waterway network is one of the main transport corridors for merchant shipping. The Saimaa inland watercourse is a challenging operating environment due to shallow waters, narrowness of the fairways, fast currents as well as the sensitiveness of the environment. It is recognised that the heavy vessel traffic poses a risk of oil pollution. An oil spill incident in inland waters has a high potential for contaminating shorelines and affecting populated areas. Responding to such an incident involves several governmental and regional authorities, agencies and voluntary organisations. Inter-agency coordination is considered a key element in incident management. Several exercise types can be used to train multi-agency collaboration in joint response operations. This paper analyses the benefits of tabletop exercises in the strengthening of joint preparedness and contingency planning. Paper compares the outcomes of discussion-based exercises with operations-based drills and full-scale exercises. The analysis is based on four oil spill response tabletop exercises and five oil response drills conducted in Saimaa region in 2017–2018. Different types of exercises make it possible to focus on different aspects of the response operation. Operations-based exercises are useful in improving technical skills and testing procedures and the functioning of the equipment. Due to time restrictions, the equipment deployment drills usually focus on a specific function or a single task. Tabletop exercises can be used to assess contingency plans on a strategic level. Tabletop exercises offer an opportunity to clarify roles and responsibilities, discuss priorities and establish inter-agency agreements. The advantages of tabletop exercises include their flexibility in scenario-building, low-cost implementation and the possibility to study a longer time span in order to gain a more holistic view of the response operation.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2019, 13, 1; 221-228
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Remote-controlled tug operation via VR/AR: results of an in-situ model test
Autorzy:
Byeon, S.
Grundmann, R.
Burmeister, H. C.
Powiązania:
https://bibliotekanauki.pl/articles/2063989.pdf
Data publikacji:
2021
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
AR/VR technology
human machine interface
virtual reality
augmented reality
AR/VR system
remote-controlled tug operation
in-situ model test
unmanned vessel
Opis:
The German-funded FernSAMS project aimed at the development of an unmanned, remote-controlled tug operation with AR/VR technology. After an extensive simulation test with ship-handling simulators, the developed FernSAMS AR/VR system has now been in-situ tested with a scale model of the tug. The model test results showed very robust stability in remote operations with improved situational awareness with the VR/AR system and sensors. After a short introduction of the FernSAMS concept as well as some first insights into FernSAMS Human-Machine-Interface tests within the simulator, this paper introduces the technical setup of the scale-model tests being conducted with the FernSAMS concept to test the operational and technical feasibility of AR/VR-based remote control. This includes an overview of the systems and sensors integration and an analysis of the effectiveness of AR/VR system combined with 360-degree video streaming.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2021, 15, 3; 801--806
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Distributed Situation Awareness in pilotage operations: implications and challenges
Autorzy:
Sharma, A.
Nazir, S.
Powiązania:
https://bibliotekanauki.pl/articles/117589.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Situation Awareness (SA)
pilotage operation
Distributed Situation Awareness (DSA)
European Maritime Safety Agency (EMSA)
piloting vessels
Automatic Identification System (AIS)
safety at sea
captain-pilot interaction
Opis:
Pilotage is considered as the most critical leg of navigation and a complex operation in maritime domain. In this paper, we argue that Distributed Situation Awareness (DSA) is an important construct in pilotage as the information required to carry out operations is distributed between agents and artefacts. We identify the central themes from the theory of DSA which are useful in describing modern day complex socio-technical systems. Further, based on the central themes, we propose guidelines for evaluating bridge teams involved in pilotage operations.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2017, 11, 2; 289-293
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Integrated maintenance decision making platform for offshore wind farm with optimal vessel fleet size support system
Autorzy:
Szpytko, J.
Salgado, Y.
Powiązania:
https://bibliotekanauki.pl/articles/117292.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
offshore wind farms
Markov Chain Monte Carlo (MCMC)
Expected Energy not Supply (EENS)
optimal vessel fleet size support system
decision making platform
Operation and Maintenance (O&M)
Predictive-Preventide Maintenance Scheduling (PPMS)
Load Duration Curve (LDC)
Opis:
The paper presents a model to coordinate the predictive-preventive maintenance process of Offshore Wind Farm (OWF) with optimal Vessel Fleet (VF) size support system. The model is presented as a bi-level problem. On the first level, the model coordinates the predictive-preventive maintenance of the OWF and the distributed Power System minimizing the risk of Expected Energy not Supply (EENS). The risk is estimated with a sequential Markov Chain Monte Carlo (MCMC) simulation model. On the second level the model determining the optimal fleet size of vessels to support maintenance activities at OWF.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2019, 13, 4; 823-830
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-14 z 14

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