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Wyświetlanie 1-15 z 73
Tytuł:
Zastosowanie łańcuchów Markowa w badaniu potencjalnych możliwości wykorzystania informacji automatycznego systemu identyfikacji (AIS)w aplikacjach antykolizyjnych
Using Markov chains to investigate the potential possibilitiesof employing data from anautomatic identification systemfor collision avoidance applications
Autorzy:
Jaskólski, Krzysztof.
Powiązania:
Zeszyty Naukowe / Akademia Marynarki Wojennej im. Bohaterów Westerplatte 2013, nr 4(195), s. 51-72
Data publikacji:
2013
Tematy:
Bezpieczeństwo morskie systemy Polska
AIS (system) stosowanie
Zarządzanie informacją
Opis:
Tab., rys.
Bibliogr.
Dostawca treści:
Bibliografia CBW
Artykuł
Tytuł:
Wykorzystanie systemu AIS do selekcji i doboru jednostek nieratowniczych do akcji SAR
Using the AIS system to select non-professional rescue units for SAR operations
Autorzy:
Małyszko, M.
Bugajski, G.
Wielgosz, M.
Powiązania:
https://bibliotekanauki.pl/articles/316009.pdf
Data publikacji:
2017
Wydawca:
Instytut Naukowo-Wydawniczy "SPATIUM"
Tematy:
system AIS
system automatycznej identyfikacji statków
akcja poszukiwawczo-ratownicza
jednostki nieratownicze
akcja SAR
AIS system
automatic identification system
search and rescue operations
non-professional rescue units
SAR
Opis:
W artykule autorzy analizują możliwość wykorzystania coraz powszechniej dostępnych danych z systemu AIS do celów planowania, prowadzenia i koordynacji akcji poszukiwawczo ratowniczych na morzu. Właściwy dobór adekwatnej jednostki do specyfiki akcji poszukiwawczo-ratowniczej może w znaczący sposób wpłynąć na jej skuteczność. Opracowana metoda filtracji danych AIS jest pomocna w selekcji jednostek nieratowniczych, które pod względem techniczno-eksploatacyjnym różnią się między sobą i w różnym stopni mogą być przydatne do konkretnej akcji SAR. W artykule omówiono działanie sytemu AIS, format pozyskiwanych danych oraz metodę ich dekodowania. Ponadto scharakteryzowano najważniejsze aspekty związane z selekcją i doborem jednostek nieratowniczych do celów akcji poszukiwawczo-ratowniczych w oparciu o dane AIS.
In this article, the authors analyse the possibility of using AIS data, which are becoming more and more widely available, for the purposes of planning, conducting and coordinating search and rescue operations at sea. The proper selection of an appropriate unit to suit the specifics of an search and rescue operation may significantly affect its effectiveness. Developed method of AIS data filtration is helpful in the selection of rescue units, which are technically and operationally different from each other and can be in different degrees useful for a specific SAR action. The article discusses the operation of the AIS system, the format of the collected data and the method of their decoding. In addition, the most important aspects related to the selection of non-professional rescue units for Search and Rescue operations based on AIS data have been characterized.
Źródło:
Autobusy : technika, eksploatacja, systemy transportowe; 2017, 18, 12; 276-280, CD
1509-5878
2450-7725
Pojawia się w:
Autobusy : technika, eksploatacja, systemy transportowe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Use of a multiple regression model to determine the parameters of vessel traffic flow in port areas
Autorzy:
Nowy, A.
Gucma, L.
Powiązania:
https://bibliotekanauki.pl/articles/117457.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
maritime traffic engineering
vessel traffic flow
port areas
multiple regression model
fairway
fairway parameters
Automatic Identification System (AIS)
AIS Data
Opis:
The paper presents the method of determining ships traffic stream parameters by means of regression method. The aim of the studies was to determine the correlation between the ship's parameters and the parameters of the fairway. Developing the presented model with information on the position of the vessel's antenna and information on the accuracy of position determination will allow creating a model for predicting the parameters of waterways.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2020, 14, 2; 443-449
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Obligations of Single-Propeller Vessels at the Head-On Situation
Autorzy:
Sahin, B.
Powiązania:
https://bibliotekanauki.pl/articles/116707.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Single-Propeller Vessel
Head-on Situation
COLREGs
Automatic Identification System (AIS)
Duties and Responsibilities of the Officer on Watch
Officer of the Watch (OOW)
Collision Avoidance, Manoeuvring
Opis:
Manoeuvring characteristics of the vessels at the head-on situation are examined in this study. The meetings between the power-driven vessels are considered based on their propellers. These vessels can either have a single propeller or double propellers. A vessel with a single right-handed propeller alters her course to port side easier than the starboard side. There exists an unnoticed gap, therefore the authors discuss the International Regulations for Preventing Collisions at Sea, 1972 (COLREGs), Rule 14, considering the vessel orientation based on its propeller walk. After presenting all possible cases and their probable consequences, this paper offers authorities to embed the information of propeller characteristics into the Automatic Identification Systems (AIS) in order to prevent misunderstandings during the VHF communications, probable collision risks and discussions on liability issues in case of marine accidents.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2016, 10, 1; 101-104
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Integrity of Information Received by Means of AIS During Anti-collision Manoeuvring
Autorzy:
Felski, A.
Jaskólski, K.
Powiązania:
https://bibliotekanauki.pl/articles/116106.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
anticollision
Automatic Identification System (AIS)
radar
ARPA
Opis:
Radar and ARPA feature certain efficacy limitations due to weather conditions and target manoeuvres. Therefore, it appears rational to supplement the information derived from radar with additional information. A system which is claimed to be tailored to perform this task is AIS delivering proper information automatically and continuously. However, in certain users opinion, integrity of AIS data is still insufficient. In this paper, discussion concerning incompleteness and integrity of this type of data is presented. To prove effectiveness of AIS dynamic data in collision avoidance, detailed investigations have been conducted. Analysed data originate from the Gulf of Gdansk, dating back to the years 2006‐2012. According to the research results, there are exceptional situations, when the information coming from the sensors cooperating with AIS is incomplete. This problem concerns information related to HDG and ROT, especially, when the vessels are not “on the way”.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2013, 7, 1; 95-100
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Comparison Study on AIS Signal Reception Rate with Directional Antenna and Omni Antenna
Autorzy:
Xu, T.
Hu, Q.
Xiang, Z.
Yang, C.
Wang, D.
Powiązania:
https://bibliotekanauki.pl/articles/116436.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Automatic Identification System (AIS)
AIS Signal
AIS Data
Yagi antenna
Omni antenna
Directional Antenna
reception rate
VHF Technology
Opis:
With the wide use of AIS system in the world, especially in ports and the waters with heavy traffic, AIS message loss may be related to environmental conditions, obstacle, limitation of VHF technology and AIS network overload, thereby reducing the AIS signal successful reception rate. This paper selected typical AIS data received by Yagi and Omni antennas at the same time in specific waters, uses grid and AIS data recovery technology, establishes the AIS signal coverage model, analyzes signal reception rate of Yagi antenna and Omni antenna of AIS base station, and verified the superiority of Yagi antenna in AIS signal reception rate.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2016, 10, 2; 205-211
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The availability of Automatic Identyfication System (AIS) based on latency position reports in the Gulf of Gdansk
Autorzy:
Jaskólski, K.
Powiązania:
https://bibliotekanauki.pl/articles/320805.pdf
Data publikacji:
2014
Wydawca:
Polskie Forum Nawigacyjne
Tematy:
Automatic Identification System (AIS)
stochastic processes
availability of AIS service
Opis:
The problem of determining geographic position considered only in terms of measurement error, seems to be solved on a global scale. In view of the above, from the nineties, the operational characteristics of radio-navigation systems are equally important. The integrated navigation system operate in a multisensor environment and it is important to determinate a temporal validity of data to make it usable in data fusion process. In the age of digital data processing, the requirements for continuity, availability, reliability and integrity information are already grown. This article analyses the problem of time stamp discrepancies of dynamic position reports. For this purpose, the statistical summary of Latency Position Reports has been presented. The navigation data recordings were conducted during 30 days of March 2014 from 19 vessels located in area of Gulf of Gdansk. On the base of Latency Position Reports it is possible to designate the availability of AIS system.
Problem określania pozycji geograficznej, z racji powszechnej dostępności systemów satelitarnych, w kontekście dokładności wyznaczeń wydaje się obecnie drugorzędny w skali globalnej. Od lat dziewięćdziesiątych ocena własności operacyjnych systemów radionawigacyjnych jest uważana za równie ważną. Zintegrowane systemy nawigacyjne działają w środowisku wielosensorowym i bardzo ważne staje się określenie zmienności w czasie danych nawigacyjnych, jeśli mają one podlegać fuzji. W erze cyfrowego przetwarzania danych wymagania ciągłości, dostępności, niezawodności i wiarygodności informacji wzrastają. W artykule zaprezentowano analizę problemu niezgodności znacznika czasu w odniesieniu do informacji dynamicznej w kontekście informacji o pozycji. W tym celu poddano analizie statystycznej opóźnienie informacji o pozycji. Rejestracje danych z dziewiętnastu statków były prowadzone przez trzydzieści dni marca 2014 roku na akwenie Zatoki Gdańskiej. Wykazano, że na bazie informacji o opóźnieniu raportów pozycyjnych możliwe jest wyznaczenie dostępności systemu AIS.
Źródło:
Annual of Navigation; 2014, 21; 59-74
1640-8632
Pojawia się w:
Annual of Navigation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Assessment of Drafting Ship Movement Parameters Using Radar and the Automatic Identification System
Autorzy:
Stupak, T.
Wąż, M.
Powiązania:
https://bibliotekanauki.pl/articles/116516.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Automatic Identification System (AIS)
radar
ship movement parameters
movement vector research
IMO standards
ARPA
vessel movement vector
GMU radar laboratory
Opis:
This article presents the movement vector research conducted in the radar laboratory of Gdynia Maritime University and during vessel cruises. The precision of designating the vessels' location, course, speed and CPA were researched using on-baord radars and AIS data. It is concluded that the precision of designating the researched parameters is greater than the International Maritime Organization requires.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2018, 12, 2; 301-304
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Analysis of Possibilities How the Collision Between m/v 'Gdynia' and m/v 'Fu Shan Hai' Could Have Been Avoided
Autorzy:
Banachowicz, A.
Wolejsza, P.
Powiązania:
https://bibliotekanauki.pl/articles/117093.pdf
Data publikacji:
2008
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Manoeuvring
Collision Situation
Ships Collision
Automatic Identification System (AIS)
Computer Simulation
Collision Investigation
Multi-Agent Decision Supporting System
COLREGs
Opis:
The report presents the simulation results of collision between m/v “Gdynia” and m/v “Fu Shan Hai”. The analysis was performed by means of decision support in collision situations. This system is based on a structure of programme multiagents using AIS data (Automatic Identification System) with the possibility of cooperation between agents or vessels. The multiagent system of supporting anticollision decisions increases the reliability of navigational information and permits making right decisions, thereby increasing safety at sea.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2008, 2, 4; 377-381
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Study Reliability of the Information About the CPA and TCPA Indicated by the Ships AIS
Autorzy:
Wawruch, R.
Powiązania:
https://bibliotekanauki.pl/articles/117321.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
maritime-related data
AIS Data
Automatic Identification System (AIS)
CPA
TCPA
ARPA
reliability of information
colregs
Opis:
According to the IMO recommendation when the target data from AIS and radar tracking are both available and the association criteria are fulfilled such that the AIS and radar information are considered as for one physical target, then as a default condition in radar equipment, the AIS target symbol and the alphanumerical AIS target data should be automatically selected and displayed only. The article presents research conducted in real conditions on the reliability of information presented by the ship's AIS about the passing distance with the other vessel equipped with AIS and time to pass it by comparing data from the AIS with that presented by ARPA.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2016, 10, 3; 417-424
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Standardization of interface for VHF, MF/HF communication using DSC within Itsintegration with INS in the framework of e-Navigation concept
Autorzy:
Koshevyy, V.
Shishkin, O.
Powiązania:
https://bibliotekanauki.pl/articles/117067.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
maritime communication
Digital Selective Calling (DSC)
DSC VHF
Automatic Identification System (AIS)
S-Mode
e-Navigation
AIS Messages
Integrated Navigation System (INS)
Opis:
Digital selective calling (DSC) has a certain drawbacks, which have led to the fact that it is practically not used in address radio communications. Attempts to improve it only within the DSC system itself did not lead to any noticeable results due to neglecting of real user needs. The article proposes an approach to improve the user interface of DSC based on the integration of VHF MF/HF DSC equipment with the INS within the three main outputs of strategic direction of e-navigation development related to the integration of communication and navigation systems and, in particular, the S-mode. This approach allows us to significantly simplify the DSC user interface, based on the standardization of DSC integration for all three VHF MF/HF communication sub bands. For implementation such standardization an additional inclusion into the integration a satellite AIS system should be done. The feasibility of the proposal is supported by the existence of relevant IEC standards and IMO documents. The possibility of increasing the cyber security level of AIS messages in this interface is also considered.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2019, 13, 3; 593-596
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ship route planning using historical trajectories derived from AIS Data
Autorzy:
He, Y. K.
Zhang, D.
Zhang, J. F.
Zhang, M. Y.
Li, T. W.
Powiązania:
https://bibliotekanauki.pl/articles/116536.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
AIS Data
Automatic Identification System (AIS)
route planning
historical trajectories
AIS messages
marine traffic
Dijkstra algorithm
ant colony algorithm
Opis:
Ship route planning is one of the key issues in enhancing traffic safety and efficiency. Many route planning methods have been developed, but most of them are based on the information from charts. This paper proposes a method to generate shipping routes based on historical ship tracks. The ship's historical route information was obtained by processing the AIS data. From which the ship turning point was extracted and clustered as nodes. The ant colony algorithm was used to generate the optimize route. The ship AIS data of the Three Gorges dam area was selected as a case study. The ships’ optimized route was generated, and further compared with the actual ship's navigation trajectory. The results indicate that there is space of improvement for some of the trajectories, especially near the turning areas.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2019, 13, 1; 69-76
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ship Behavior Analysis for Real Operating of Container Ships Using AIS Data
Autorzy:
Gao, X.
Makino, H.
Furusho, M.
Powiązania:
https://bibliotekanauki.pl/articles/116131.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Automatic Identification System (AIS)
AIS Data
Container Ship
Real Operating of Container Ships
Opis:
The aim of this paper is to understand the real activity and operating situation of container ships in order to improve navigation efficiency. The study focused on the navigation for an entire ship voyage to understand the real activity of container ships using the historical ship navigation based on Automatic Identification System (AIS) data, which is possible so as to unveil the characteristics of real ship activity. The analysis considers ship voyages in the Seto Inland Sea and its oceanic waters, which are the primary traffic routes for container transportation particularly for China, Japan, and South Korea. The results of this study can be used to improve the efficiency of container ships and develop a smoother maritime transportation.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2016, 10, 2; 213-220
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sharing ships’ weather data via AIS
Autorzy:
Tetreault, B.
Johnson, G. W.
Powiązania:
https://bibliotekanauki.pl/articles/116768.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
AIS Assisted Services
weather data
Automatic Identification System (AIS)
AIS Application-Specific Message (ASM)
National Transportation Safety Board’s (NTSB)
Voluntary Observing Ship (VOS)
National Oceanic and Atmospheric Administration (NOAA)
U.S. Army Corps of Engineers (USACE)
Opis:
In the aftermath of the sinking of the US-flagged containership El Faro in October 2015, one of the U.S. National Transportation Safety Board’s (NTSB) recommendations was for the National Oceanic and Atmospheric Administration (NOAA) to explore increasing the collection of weather data from ships in order to improve the weather forecast products that they distribute. Currently NOAA runs the Voluntary Observing Ship (VOS) program, where ships voluntarily submit weather observations to NOAA. However, only a small fraction of the thousands of vessels sailing worldwide participate in this program, and VOS weather observations are submitted infrequently, typically four times per day via a mainly manual process. One method being explored to automate and increase the frequency of data submittal is by using the existing Automatic identification System (AIS) equipment installed aboard vessels. Most commercial ships (in particular those subject to the International Maritime Organization's (IMO) Safety of Life and Sea (SOLAS) convention) have a Class A AIS transceiver installed to comply with mandatory carriage requirements. Many vessels not required to carry AIS equipment voluntarily install AIS transceivers (either Class A or B). All of these AIS transceivers (except for the Class B “CS”) can be used to transmit an AIS message 8 (broadcast binary message) by sending the transceiver an appropriately formatted NMEA sentence (BBM). Weather data can be embedded in an AIS application-specific message (ASM) carried by the AIS message 8 and automatically transmitted by the ship. This transmission can be received by terrestrial AIS stations (when in range) or by satellite AIS receivers. The AIS weather data can then be converted into the appropriate format and forwarded to the weather forecasting offices for use in models and weather predictions. This data may also be of use to other researchers monitoring climate change or other environmental factors. By leveraging this existing base of AIS transmitters, the volume of weather data being sent to weather forecast offices and others could be greatly increased. The U.S. Army Corps of Engineers (USACE) and U.S. Maritime Administration (MARAD) have been exploring the feasibility of this concept. Following a simple bench test performed by Alion Science in September 2018, an initial proof-of-concept was tested aboard the MARAD vessel Cape Wrath while moored in Baltimore in October 2018. After this successful demonstration, a prototype was installed on the Massachusetts Maritime Academy training ship TS Kennedy during her training cruise Jan-Feb 2019. During this cruise, the AIS equipment aboard the ship transmitted weather data at 3-minute intervals. Several different ASM formats were tested, including two developed specifically for this test to improve satellite reception. This report will discuss the concept, the demonstrations, and the results to date including the efficacy of the various ASM formats.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2020, 14, 1; 143-150
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 73

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