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AIS (AIS Automatic Identification System) is a system that allows you to identify and track online vessel movement with an accuracy of up to 10 meters. Besides AIS vessel locations provides information about their type, dimensions, destination, speed, expected time of arrival, and makes it possible to familiarize yourself with the history of routes and the expected course. The specified information is presented in a card, to open which you need to click on the object of interest. Online access to ships' AIS provided directly by ships using a radio frequency transmitter. Some ships or ports may not be viewable due to range limitations, interference, or weather conditions affecting radio communications. If " marine traffic” does not display the object you want, please try again later.
Real-time vessel traffic map covers the whole world and provides the user with the opportunity to see their arrangement in various ports and areas of the world. To find ships in other regions and ports, you need to zoom out on the map and select the desired sector.
The Answer-Logistic portal focuses on the current movement and positions of vessels according to AIS in the eastern part of the Gulf of Finland and the port of St. Petersburg. Note that ship deployment displayed with a slight delay. Find out the time elapsed since last update coordinates, you can by hovering the cursor over an object.
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Marine Traffic is a resource with which you can track the position of ships on an AIS (Automatic Identification System) map. This is done very simply: in the search window you need to enter the name of the vessel, and the service will show where it is located in at the moment. In addition to the name and type of the ship, you can find out its course, the country to which it belongs, its speed and other useful data.
The service is convenient to use - ships different types are highlighted in different colors, the direction of their movement is shown, and those at anchor are separately indicated.
Video: MarineTraffic - the world's most popular online vessel tracking service
When you hover the cursor over the icon, information about the ship appears in a pop-up window: name, country of registration, destination. If you click on it, the system will show more detailed information, right down to the photo.
How does Marinetraffic work?
AIS technology is used to create a ship map – automatic system identification. Each ship has a transmitter that constantly transmits information over the air using radio waves. Mobile and satellite communications are not used here, so this technology is cheaper than analogues. Any receiver operating on VHF or VHF frequencies can pick up the signal.
Broadcast coverage depends on several factors. The most significant ones are the transmitter power and the height of the receiving antenna. But even the weakest repeater can broadcast within a range of 75 km. This is enough for ships to become aware of each other's presence from a safe distance.
If you want to find out where and what vessels are located or find the location of a specific vessel in real time, then select the desired quadrant on the map and view the movement of vessels. To find out what kind of ship it is and who it belongs to, just click on the marker you are interested in on the ships map.
More options (if the map above is not available)
→ riverships.ru
Information on Russian river steamers (with photos).
→ shipspotting.com
→ shipsandharbours.com
Find the ship and see its photo.
→ cfmc.ru/positioning
Information about the location of training ships.
Information on the location of vessels is provided based on data from the industry monitoring system (OSM). The positioning time is set to UTC.
→ maritime.com.pl
Information on Polish courts.
Quote:
“The Maritime Shipping section consists of the following modules: Maritime Agencies, Vessel Catalog, List of Regular Lines.
This section contains a list of Polish ships in service, with their full description. In addition to detailed technical data, photographs, illustrations and specifications can be found here. It is possible to find all the information for any vessel by specifying its name, type of vessel, ship owner or technical parameters.”
→ vesseltracker.com
If you want to see a photo of the ship, and brief information about the ship.
→ marinetraffic.com
Website to monitor the vessel in real time
→ containershipregister.nl
search by container name. You can search for a ship by name, by IMO, etc.
→ world-ships.com
In general, search across all courts in the world, but registration is required.
→ solentwaters.co.uk
You can find a ship in real time by name.
Overall a great site.
→ digital-seas.com
The search contains a lot of information on the vessel, photos, descriptions, and upon registration, access to the full database.
→ digital-seas.com
shows a photo of the vessel, brief information about it, current location, ports of call..
registration required
View information and photos on the ships of the shipping company MSC Ships.
Photo super quality!!!
Based on data from AIS. All vessel positions, departure from the port and arrival at the destination port in real time. Attention! The positions of the vessels may sometimes not correspond to the real ones and may lag behind by an hour or more. All coordinates of vessel positions are presented for informational purposes only.
Search data from AIS cannot be used for routing. When searching, you will find accurate information about the movements of ships on the map using AIS data and can view their photographs. In order to find a ship, select a sector on the map where the number of ships currently located there is indicated.
We click with the mouse, for example, on the region of Europe and get the picture that you see below. If you zoom in on the area, you will see specific vessels. The map receives updates every few seconds.
When you hover your cursor over a ship, you can see its name; on the site you can get other information you are interested in for searching. To find the ship you are interested in, enter the name of the ship and, if possible, its location in the search bar and press the search key. The AIS map will show the vessel's position in real time.
What is AIS?
To reduce the risk of ship collisions, AIS - Automatic Identification System was developed in 2000. Its functionality turned out to be so successful that just two years later the International Maritime Organization demanded the mandatory installation of AIS terminals on all cargo ships with a displacement of more than 500 registered tons, on “trucks” over 300 tons on international voyages, and on all ships for passenger transport, regardless of tonnage
Unlike radars, which can detect the appearance of large floating objects near the ship and approximately estimate their current direction and speed of movement, AIS allows you to obtain much more detailed and accurate information about the navigation situation.
To better understand the possibilities new system, first let's figure out how it works.
The ship's AIS module is a digital VHF transceiver interfaced with ships' navigation systems. Depending on the speed of the vessel, every 2–10 seconds (every 3 minutes when stationary) it automatic mode transmits the following operational information: MMSI identification number, navigation status (at anchor, underway, etc.), current coordinates, true course and speed, angular rate of turn and precise time stamp.
In addition to dynamic data, static data is transmitted every 6 minutes: the IMO vessel identification number, its type, name, radio call sign, dimensions, type of positioning system (GPS, GLONASS, LORAN) and even the position of its antenna relative to the bow of the vessel. Route information is transmitted at the same frequency: destination with estimated time of arrival, draft, cargo category and number of people on board. In addition, in the event of a threat to the safety of the vessel, it is allowed to send text messages entered manually.
The received information can be displayed on the terminal in the form of a table with information about nearby vessels, as well as in the form of their symbols superimposed on navigation maps (for example, in a chartplotter) - of course, in this case it is much easier to assess the relative position and dynamics of movement.
In short, according to AIS messages, the captain can absolutely accurately assess the current navigation situation. By the way, radio traffic in the system is carried out in the range of 162 MHz, that is, at a much lower frequency compared to radar radiation. Longer radio waves are able to avoid obstacles such as large ships and low islands, and therefore the range of AIS is pleasantly impressive. Under favorable conditions, it can exceed 40 miles, but keep in mind that the height of the antenna here, as with other airborne transmitters, plays a decisive role.
For yachtsmen, at least those whose vessels do not appear in the Forbes magazine charts, the subtlety of using the system lies in the fact that only simplified version terminals, designated “Class B”, are allowed to be installed on ships with a displacement of less than 300 tons.
They feature a noticeably reduced transmitter power (2 W versus 12.5 W), which limits their transmission range to approximately five miles. Another nuisance is a simplified data transmission algorithm that allows you to send information only if there is free space on the air during the radio exchange of older brothers equipped with class A terminals. The trick here is that at any given time on any of the two AIS channels It is possible to transmit one single block of digital data, and class A devices are able to agree in advance on the order of their issuance.
However, you must agree: despite such discrimination, being in a rough sea at night, it is very pleasant to know that on a supertanker passing nearby, the watchman probably knows about the presence of your 45-foot yacht at his side.
There is another way to use AIS, and it involves installing a receiver that does not allow sending any data at all, but is capable of tracking the movements of all ships equipped with full-fledged terminals. By and large, you don't even need a separate device for this, since manufacturers like Icom and Standard Horizon have begun to equip high-end models of mounted VHF radios with this function.
Convenient, compact, not expensive, but there is one big “but” - it’s problematic to place even a text table on a small low-resolution screen, let alone build even the most primitive semblance of a map...
This is why AIS receivers have been developed that do not show graphic information, but able to convert data into packets of the standard NMEA protocol, understood by the vast majority of chartplotters. Plus, some of them can connect to computers via USB, or even transfer data via Wi-Fi to mobile gadgets running under Android control or iOS. Similar devices are produced, for example, by Weather Dock.
By the way, when installing AIS equipment, even an additional antenna is not absolutely necessary due to operation in the same frequency range with the on-board radio. However, keep in mind that splitters used to connect two antennas different devices, as a rule, the signal level is slightly reduced, and in case of problems with a single antenna, you will lose two security systems at once.
It would be naive to believe that such an advanced information exchange system was created solely to assist helmsmen in operational maneuvering. AIS also includes global monitoring of vessel movements for the benefit of a variety of shipping companies, traffic control centers, and government agencies that may require information about the location of certain vessels or cargo. For this reason, AIS equipment can be based not only on ships, but also on coastal stations, many of which are connected to a global network.
Well, in order to more effectively use the system to search and rescue sailors in emergency situations, emergency buoys are being produced that are capable of transmitting AIS information with high priority. There are also so-called virtual buoys - this is the only type of device in the system, whose real location may not coincide with the coordinates in their messages. As a rule, these are transmitters installed on the shore, warning passing ships of dangers such as poorly visible rocks or capes devoid of lighthouses jutting far out to sea.
It must be said that AIS receivers are even located on satellites. It is only on the surface of the Earth that the radius of propagation of its signal is limited by visibility to the horizon, but in space it can be received from hundreds of kilometers without any problems. Today, more than a dozen spacecraft are orbiting the planet, monitoring maritime traffic.
It’s especially nice that you can get to data on the global movement of ships without being the owner of a shipping company or a secret service agent. Information is available on a paid basis (for example, in full version Google Earth), however, in a somewhat truncated form, it can be seen for free, for example, on the resource www.marinetraffic.com, whose interactive maps and user-friendly interface are replicated on many other nautical websites.
