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Tytuł:
Analiza dostępności systemu AIS
Availability analysis ais system
Autorzy:
Felski, A.
Jaskólski, K.
Powiązania:
https://bibliotekanauki.pl/articles/223198.pdf
Data publikacji:
2011
Wydawca:
Akademia Marynarki Wojennej. Wydział Dowodzenia i Operacji Morskich
Tematy:
system AIS
transmisja danych
AIS system
data transmission
Opis:
Automatyczny system identyfikacji statków dla znacznej części jednostek jest obecnie traktowany jako wyposażenie obowiązkowe. Pomimo początkowych obiekcji również personel pokładowy oraz systemów nadzoru ruchu coraz chętniej z niego korzysta. Nie milkną jednak głosy krytyczne, zgłaszające zastrzeżenia co do celowości, wartości systemu, a nawet zagrożeń wynikających z jego wprowadzenia. Jedną ze sygnalizowanych niedoskonałości usług świadczonych przez system AIS jest dostępność transmisji. Pojawiły się doniesienia o niedoskonałości systemu jako kanału transmisji danych, czego dowodem miały być przypadki braku możliwości odbioru sygnałów w zaplanowanym interwale czasowym. W artykule poddano analizie problem dostępności systemu AIS z punktu widzenia jakości kanału transmisji danych i podjęto próbę oceny dostępności kanału transmisji serwisu AIS. Wykorzystując dane zarejestrowane przez stację VTS Gdynia pochodzące ze stacji bazowych rozmieszczonych na wybrzeżu Zatoki Gdańskiej, zaproponowano metodę oceny dostępności serwisu AIS.
The automatic identification system of ships is considered obligatory equipment in relation to a large number of ships. Despite the initial objections deck personnel and traffic control personnel are more and more willing to use it. Voices of criticism, questioning purposefulness and value of the system as well dangers related to its use can still be heard. One of the signaled deficiencies of the services offered by the AIS is transmission availability. There has appeared some information concerning deficiencies of the system as a channel for data transmission, which can be proved by cases of inability to receive signals at the planned time interval. The paper analyses the problem of availability of transmission channel in the AIS service in relation to the quality of the transmission channel. It also attempts to assess availability of the transmission channel in the AIS service. Using data recorded by Gdynia VTS station coming from base station located along the Bay of Gdańsk coast, a method for assessing AIS service availability is proposed.
Źródło:
Zeszyty Naukowe Akademii Marynarki Wojennej; 2011, R. 52 nr 3 (186), 3 (186); 15-25
0860-889X
Pojawia się w:
Zeszyty Naukowe Akademii Marynarki Wojennej
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 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:
Problem niezdatności informacyjnej systemu AIS
Uselessness of AIS information
Autorzy:
Felski, A.
Jaskólski, K.
Powiązania:
https://bibliotekanauki.pl/articles/222879.pdf
Data publikacji:
2010
Wydawca:
Akademia Marynarki Wojennej. Wydział Dowodzenia i Operacji Morskich
Tematy:
system AIS
transmisja danych
niezdatność informacyjna
bezpieczeństwo żeglugi
AIS system
data transmission
information uselessness
sailing safety
Opis:
Równolegle z coraz powszechniejszym stosowaniem systemu AIS pojawiają się opinie o jego niedoskonałościach kojarzonych z brakiem transmisji lub przekazywaniem niewiarygodnych informacji. W artykule omówiono zagadnienie niezdatności informacyjnej AIS przejawiające się przekazywaniem niekompletnej lub niewiarygodnej informacji. Uwzględniając wyniki badań i analiz innych autorów, rejestracje własne oraz specyfikację techniczną systemu, zaproponowano założenia modelu oceny niezdatności AIS. Przedstawiono również wyniki badań pilotażowych kompletności informacji transmitowanych systemem AIS w rejonie Zatoki Gdańskiej.
As AIS is more and more commonly used there appear opinions concerned with its deficiencies associated with absence of data transmission or transferring incredible information. The paper discusses the issue of uselessness of AIS information manifested in transmitting incomplete or incredible information. Taking into consideration the results of investigations and analyses done by other authors, our own records and technical specification of the system proposed are some assumptions for a model to be used to assess uselessness of AIS. The paper also presents the results of pilot investigations into completeness of information transmitted with AIS in the Bay of Gdańsk.
Źródło:
Zeszyty Naukowe Akademii Marynarki Wojennej; 2010, R. 51 nr 4 (183), 4 (183); 77-87
0860-889X
Pojawia się w:
Zeszyty Naukowe Akademii Marynarki Wojennej
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:
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:
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:
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:
An Algorithm for Interpolating Ship Motion Vectors
Autorzy:
Hu, Q.
Cai, F.
Yang, C.
Shi, C.
Powiązania:
https://bibliotekanauki.pl/articles/116863.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Ship Motion
Ship Motion Vector
Automatic Identification System (AIS)
AIS Dynamic Information
Algorithm, Ship's Acceleration
AIS Data
Vector Function
Opis:
Interpolation of ship motion vectors is able to be used for estimating the lost ship AIS dynamic information, which is important for replaying marine accidents and for analysing marine traffic data. The previous methods can only interpolate ship’s position, while not including ship's course and speed. In this paper, vector function is used to express the relationship between the ship’s time and space coordinates, and the tangent of the vector function and its change rate are able to express physical characteristics of ship’s course, speed and acceleration. The given AIS dynamic information can be applied to calculate the parameters of ship's vector function and then the interpolation model for ship motion vectors is developed to estimate the lost ship dynamic information at any given moment. Experiment results show that the ship motion vector function is able to depict the characteristics of ship motions accurately and the model can estimate not only the ship’s position but also ship’s course and speed at any given moment with limited differences.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2014, 8, 1; 35-40
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Radar Image Processing and AIS Target Fusion
Autorzy:
Heymann, F.
Banyś, P.
Saez, C.
Powiązania:
https://bibliotekanauki.pl/articles/116637.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
e-Navigation
Radar Image Processing, Radar
Automatic Identification System (AIS)
AIS Target
AIS and Radar Fusion
Collision Avoidance
Maritime Traffic
Opis:
Collision avoidance is one of the high-level safety objectives and requires a complete and reliable description of maritime traffic situation. A combined use of data provided by independent data sources is an approach to improve the accuracy and integrity of traffic situation related information. In this paper we study the usage of radar images for automatic identification system (AIS) and radar fusion. Therefore we simulate synthetic radar images and evaluate the tracking performance of the particle filter algorithm as the most promising filter approach. During the filter process the algorithm estimates the target position and velocity which we finally compare with the known position of the simulation. This approach allows the performance analysis of the particle filter for vessel tracking on radar images. In a second extended simulation we add the respective AIS information of the target vessel and study the gained level of improvement for the particle filter approach. The work of this paper is integrated in the research and development activities of DLR Institute of Communications and Navigation dealing with the introduction of data and system integrity into the maritime traffic system. One of the aimed objectives is the automatic assessment of the traffic situation aboard a vessel including integrity information.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2015, 9, 3; 443-448
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
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:
Expanding the possibilities of AIS data with heuristics
Autorzy:
Smestad, B.B.
Rødseth, Ø.J.
Asbjjørnslett, B.E.
Powiązania:
https://bibliotekanauki.pl/articles/116611.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Automatic Identification System (AIS)
AIS Data
heuristics
commercial ship data registers
heuristic training
heuristic testing
satellite AIS Data
commercial vessel database
Opis:
Automatic Identification System (AIS) is primarily used as a tracking system for ships, but with the launch of satellites to collect these data, new and previously untested possibilities are emerging. This paper presents the development of heuristics for establishing the specific ship type using information retrieved from AIS data alone. These heuristics expand the possibilities of AIS data, as the specific ship type is vital for several transportation research cases, such as emission analyses of ship traffic and studies on slow steaming. The presented method for developing heuristics can be used for a wider range of vessels. These heuristics may form the basis of large-scale studies on ship traffic using AIS data when it is not feasible or desirable to use commercial ship data registers.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2017, 11, 2; 279-286
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Maritime Traffic Situations in Bornholmsgat
Autorzy:
Olindersson, F.
Janson, C. E.
Dahlmann, J.
Powiązania:
https://bibliotekanauki.pl/articles/116033.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Maritime Traffic
Baltic Sea
Bornholmsgat
COLREGs
AIS Data
Automatic Identification System (AIS)
Collision Avoidance
Traffic Separation Scheme (TSS)
Opis:
Maritime traffic situations is regulated in the Convention on the International Regulations for Preventing Collisions at Sea (COLREGs), but how well are these rules followed by officers on board vessels? When the world shipping fleet grow and the traffic becomes more intensive, the risk of collision increase. By analysing AIS data from vessels in the traffic separation scheme Bornholmsgat during 24 hours in December 2013, 421 traffic situations were found where the passing distance between the vessels were less than 1.5 nautical miles. The compliance with the Convention on the International Regulations for Preventing Collisions at Sea (COLREGs) seems to be good, but the average avoiding action is less than the recommended manoeuver.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2015, 9, 1; 115-120
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparison of master’s route selection criteria of vehicle carriers in North Pacific and North Atlantic using satellite AIS and Ocean wave data
Autorzy:
Fujii, M.
Hashimoto, H.
Taniguchi, Y.
Powiązania:
https://bibliotekanauki.pl/articles/116274.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
AIS Assisted Services
Route Selection
Route Selection Criteria
Satellite AIS
Ocean Wave Data
Automatic Identification System (AIS)
North Pacific
North Atlantic
Opis:
The operational measures in which a ship needs to avoid specified areas to escape ship stability failures were discussed at the International Maritime Organization as a part of the second generation intact stability criteria. It is necessary that the rationality and practicality of the operational measures are carefully investigated. In this study, master’s route decision-making criteria of trans-ocean vehicle carriers have been clarified by comparing the Pacific and the Atlantic data, derived from Satellite AIS and ocean wave data. Features of voyage routes of each ocean were discussed, followed by analysis of the encountered wave direction and height during a voyage. The master’s route selection criteria were defined by comparing the probability densities of the wave heights that occurred in the navigable area and that of the actual encountered waves. The navigation hours in a stormy area were also studied.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2020, 14, 1; 137-141
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
AIS-Assisted Service Provision and Crowdsourcing of Marine Meteorological Information
Autorzy:
Chang, J. S.
Huang, C. H.
Chang, S. M.
Powiązania:
https://bibliotekanauki.pl/articles/116576.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
crowdsourcing
meteorology
marine meteorological information
AIS-assisted service
Automatic Identification System (AIS)
typhoon forecast
Application-Specific Messages (ASM)
AIS-Weather project
Opis:
Ship navigation and operational activities at sea need meteorological and hydrographic information to enhance safety and efficiency. Besides observations collected from deployed data buoys, marine meteorological information services rely on weather observation reports from ships to increase the data density and thus service quality. Automatic Identification System (AIS), adopted internationally to facilitate ship-ship and ship-shore data exchange, has developed into communication links between ship/shore and buoys with many potential applications. This paper presents AIS applications designed and implemented for marine meteorological information services in a long-term project initiated by the Central Weather Bureau of Taiwan. Achievements of this initiative include: versatile service delivery via shore-based AIS network to shipborne application platforms such as smart phones, remote controllable moving weather data collection, and assisted sharing of weather observation reports from ships. Typhoon forecast and warning is one of the key applications implemented for this region.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2019, 13, 1; 63-67
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of satellite AIS Data to derive weather judging criteria for voyage route selection
Autorzy:
Fujii, M.
Hashimoto, H.
Taniguchi, Y.
Powiązania:
https://bibliotekanauki.pl/articles/116513.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Automatic Identification System (AIS)
AIS Data
voyage route selection
route planning
satellite AIS Data
North Pacific Ocean
weather forecast
decision-making criteria
Opis:
The operational limitations are discussed at the IMO as a part of the second generation intact stability criteria. Since it is a first attempt to introduce operational efforts into safety regulations, comprehensive discussions are necessary to realize practically acceptable ones. Therefore this study investigates actual navigation routes of container ships and pure car carriers in the trans-North Pacific Ocean in winter, because they are prone to suffer significant parametric roll which is one of stability failure modes. Firstly, interviews are made to shipmasters who have experiences to have operated the subject ships to identify major elements for route selection in the North Pacific Ocean. Secondly, sufficient number of actual navigation records is collected from Satellite AIS data to derive the weather criteria for the route selection in severe weather condition. Finally, shipmaster’s on-board decision-making criteria are discussed by analysing the ship tracking data and weather data.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2017, 11, 2; 271-277
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Satellite-based AIS and its Comparison with LRIT
Autorzy:
Cheng, Y.
Powiązania:
https://bibliotekanauki.pl/articles/117541.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Automatic Identification System (AIS)
Long Range Identification and Tracking (LRIT)
Satellite-Based AIS
Navigational Tools
Radiocommunication
Monitoring Coverage
communication scheme
Identification System
Opis:
The satellite-based Automatic Identification System (AIS) system has continuously been developed by the shipping industry in recent years. This paper introduces the satellite-based AIS including the concept, the system structure, the development and its new applications. The Long Range Identification and Tracking (LRIT) system, which is mandatory to be required on certain classes of ships engaged on international voyages to report their position at least every six hours using onboard communication means however, has similar kind of function of ship monitoring with the satellite-based AIS system. Based on the basic introduction of the LRIT system, this paper presents the comprehensive comparison between satellite-based AIS and LRIT in terms of the ship’s cost, the communication scheme, the monitoring coverage, the information details and the information creditability. The conclusion that the satellite-based AIS should be encouraged to effectively play a complement role to the LRIT system is advanced in the paper.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2014, 8, 2; 183-187
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparative Study of the Accuracy of AIS and ARPA Indications. Part 1. Accuracy of the CPA Indications
Autorzy:
Wawruch, R.
Powiązania:
https://bibliotekanauki.pl/articles/117390.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Automatic Identification System (AIS)
ARPA
Closest Point of Approach (CPA)
accuracy
CPA Accuracy
comparative study
radar tracking
AIS target
Opis:
According to the IMO recommendation when the target data from radar tracking and AIS are both available and the association criteria are fulfilled such that the radar and AIS information are considered as for one physical target, then as a default condition in radar equipment should be automatically selected and displayed the AIS target symbol and the alphanumerical AIS target data only. The article presents research conducted in real sea conditions on the reliability of information presented by the ship's AIS and ARPA about the passing distance with the other vessel tracked by radar equipment and fitted with AIS.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2018, 12, 3; 439-443
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Identifying and Analyzing Safety Critical Maneuvers from High Resolution AIS Data
Autorzy:
Mestl, T.
Tallakstad, K.T.
Castberg, R.
Powiązania:
https://bibliotekanauki.pl/articles/117375.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
AIS Data
Automatic Identification System (AIS)
High Resolution AIS Data
Critical Maneuvers
1-2-3 Rule
vessel traffic service (VTS)
AIS Transponder
Safety of Navigation
Opis:
We demonstrate the value in previously disregarded parameters in AIS data, and present a novel way of quickly identifying and characterizing potentially safety critical situations for vessels with a properly configured AIS transponder. The traditional approach of studying (near) collision situations, is through vessel conflict zones, based on vessel location and speed from low resolution AIS data. Our approach utilizes the rate of turn parameter in the AIS signal, at maximum time resolution. From collision investigation reports it is often seen that prior to or at collision navigators perform frenetic rudder actions in the hope to avoid collision in the last second. These hard maneuverings are easily spotted as non-normal rate of turn signals. An identified potential critical situation may then be further characterized by the occurring centripetal acceleration a vessel is exposed to. We demonstrate the novelty of our methodology in a case study of a real ship collision. As the rate of turn parameter is directly linkable to the navigator behavior it provides information about when and to what degree actions were taken. We believe our work will therefore inspire new research on safety and human factors as a risk profiles could be derived based on AIS data.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2016, 10, 1; 69-77
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:
Research on radiation characteristics of plasma Yagi antenna based on AIS base station in ships’ routeing waters
Autorzy:
Sun, Y.
Chen, Y.
Kong, F.
Wei, Y.
Zhan, F.
Zhao, J. S.
Powiązania:
https://bibliotekanauki.pl/articles/117021.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
radio navigation
radiation characteristics
plasma Yagi antenna
ships routeing
AIS base station
AIS based shipping routes
ships routeing waters
Automatic Identification System (AIS)
Opis:
A Yagi plasma antenna model was established by HFSS according to the relationship between plasma dielectric constant and electron density. The patterns were simulated by changing plasma parameters and the number of director dipoles. Results show that when the passive vibrators were switched off, the antenna is omnidirectional antenna. The directionality increases with the increase of the number of passive dipole and the main lobe of which narrows down. Then the plasma Yagi antenna model is established by plasma tube, the gain changed by changing the number of passive dipoles, so the plasma Yagi antenna has a very good reconfigurability. Results prove that the feasibility of the plasma Yagi antenna can be used on AIS base station of Ships’ Routeing waters. It can promote the communication and capability of maritime supervision in Ships’ Routeing waters.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2020, 14, 1; 179-184
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 clonal selection algorithm for PID controller synthesis of mimo systems in oil and gas industry
Zastosowanie algorytmu selekcji klonalnej do syntezy regulatora PID systemów mimo w przemyśle petrochemicznym
Autorzy:
Shiryayeva, Olga
Samigulin, Timur
Powiązania:
https://bibliotekanauki.pl/articles/407898.pdf
Data publikacji:
2019
Wydawca:
Politechnika Lubelska. Wydawnictwo Politechniki Lubelskiej
Tematy:
artificial immune system (AIS)
clonal selection algorithm (CLONALG)
PID controller
MIMO system
sztuczny układ immunologiczny (AIS)
algorytm doboru klonów (CLONALG)
kontroler PID
system MIMO
Opis:
This paper presents the results of the Smart technologies application to the synthesis of MIMO-systems in oil and gas industry. In particular, there is considered a multidimensional multiply connected system for gas distillation process control through a distillation column with regulators configured on the basis of Smart-technologies – clonal selection algorithm (CLONALG) of an artificial immune system (AIS).
W artykule przedstawiono wyniki zastosowania inteligentnych technologii do syntezy systemów MIMO w przemyśle petrochemicznym. W szczególności rozważany jest wielowymiarowy układ sterowania procesem destylacji gazu w kolumnie destylacyjnej z regulatorami skonfigurowanymi na podstawie tzw. inteligentnych technologii – algorytmu doboru klonów (CLONALG) sztucznego układu immunolgicznego (AIS).
Źródło:
Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska; 2019, 9, 3; 50-53
2083-0157
2391-6761
Pojawia się w:
Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Taxonomy Framework for Maritime Cybersecurity: A Demonstration Using the Automatic Identification System
Autorzy:
Kessler, G.C.
Craiger, J.P.
Haass, J.C.
Powiązania:
https://bibliotekanauki.pl/articles/116413.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
cybersecurity
maritime cybersecurity
Automatic Identification System (AIS)
taxonomy
taxonomy framework
cyber attack
Maritime Transportation System
risk mitigation
Opis:
The maritime transportation system is increasingly a target of cyber attacks. This paper describes a taxonomy that supports the creation of adversarial cyber models, risk mitigation, and resiliency plans as applied to the maritime industry, using the Automatic Identification System as a specific illustration of the approach. This method has already been applied to the aviation sector; retooling it for a maritime example demonstrates its broad applicability to the transportation sector, in general.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2018, 12, 3; 429-437
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
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:
Procedure for Marine Traffic Simulation with AIS Data
Autorzy:
Miyake, R.
Fukuto, J.
Hasegawa, K.
Powiązania:
https://bibliotekanauki.pl/articles/117537.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
AIS Data
Marine Traffic
Marine Traffic Simulation
Collision Avoidance
Automatic Identification System (AIS)
safety at sea
Traffic Simulation
Navigation Environment
Opis:
It is essential to evaluate safety of marine traffic for the improvement of efficiency and safety of marine traffic. Spread of AIS makes observation of actual marine traffic more easily and faster than before. Besides, description of collision avoidance behaviours of ships are indispensable to simulate a realistic marine traffic. It is important to develop and implement an algorithm of collision avoidance corresponding to a target traffic or target area into the marine traffic simulation because actual actions for collision avoidance depend on circumstances where ships are sailing. The authors developed an automated marine traffic simulation system with AIS data. And in this paper, we proposed a series of systematic procedures for marine traffic simulation including analysing for collision avoidance behaviours using AIS data.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2015, 9, 1; 59-66
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
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