Positions of ships in the Kerch Strait. MarineTraffic - AIS real-time vessel tracking map in Russian Vessel location and details for apple denver

AIS (English AIS Automatic Identification System) is a system that allows you to identify and track ship movement online accurate to 10 meters. In addition to location of AIS vessels provides information about their type, dimensions, destination, speed, expected arrival time, makes it possible to get acquainted with the history of routes and the proposed course. The specified information is presented in a card, to open which you need to click on the object of interest. Online access to AIS vessels provided directly by ships using a radio frequency transmitter. Certain ships or ports may be unavailable for viewing due to range restrictions, interference, weather conditions affecting radio communications. If " marine traffic”Does not display the object you want, please try again later.

Real-time ship traffic map covers the whole world and provides the user with the opportunity to see their arrangement in various ports and regions 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 by AIS in the eastern part of the Gulf of Finland and the port of St. Petersburg. Note that location of ships displayed with a slight delay. You can find out the time elapsed since the last coordinates update by hovering over the object.

Based on data from AIS. All positions of ships, departure from the port and arrival at the port of destination in real time. Attention! Sometimes the positions of the ships may not correspond to the real ones and lag behind by an hour or more. All coordinates of the positions of the vessels are presented for informational purposes only.

Search data from AIS (AIS) cannot be used to plot a route. When searching, you will find accurate information about the movement of vessels on the map according to AIS data and you can see their photos. In order to find a ship, select a sector on the map, where the number of those who are there in this moment ships.

We click with the mouse, for example, on the region of Europe and we get the picture that you see below. If you zoom in on the area, you will see specific ships. The map receives updates every few seconds.

When you hover the cursor over the steamer, you can see its name, on the site you can get other information you are interested in for searching. To find the steamer you are interested in, enter the name of the vessel and, if possible, its localization in the search bar and press the search key. Ais map will show the position of the vessel in real time.

What is AIS?

To reduce the risk of collisions between ships, in 2000, the AIS - Automatic Identification System was developed, that is, the Automatic Identification System. Its functionality turned out to be so successful that after just two years the International Maritime Organization demanded the mandatory installation of AIS terminals on all cargo ships with a displacement of more than 500 register tons, on "trucks" over 300 tons making international voyages, and on all ships for passenger transportation regardless of tonnage.

Unlike radars, which can detect the appearance of large floating objects near the vessel and approximately estimate their current direction and speed of movement, AIS allows you to get much more detailed and accurate information about the navigation situation.

To better understand the possibilities new system, for a start, let's figure out how it works.

The ship's AIS module is a digital VHF transceiver associated with ship's navigation systems. Depending on the speed of the vessel, every 2-10 seconds (every 3 minutes while at a stop) it automatically transmits the following operational information: an identification number MMSI, navigation status (anchored, moving while moving, etc.), current coordinates, true heading and speed, yaw rate and time stamp.

In addition to dynamic data, static data are transmitted every 6 minutes: 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 with the same frequency: destination with estimated time of arrival, draft, cargo category and number of people on board. In addition, in case 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 ships, as well as in the form of their symbols superimposed on navigational charts (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 reports, the captain can absolutely accurately assess the current navigation situation. By the way, radio traffic in the system is carried out in the 162 MHz range, that is, at a much lower frequency than the radiation of radars. Longer radio waves are capable of bending around obstacles such as large ships and small islands, which makes the range of AIS pleasantly impressive. It can exceed 40 miles under favorable conditions, but keep in mind that antenna height is critical here, as with other airborne transmitters.

For yachtsmen, at least those whose vessels do not appear on the charts Forbes magazine, the subtlety of using the system lies in the fact that only terminals of a simplified version, designated "Class B", are allowed to be installed on ships with a displacement of less than 300 tons.

They are distinguished by a markedly reduced transmitter power (2 W versus 12.5 W), which limits the range of their messages to about 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 is that at any moment in time on any of the two AIS channels transmission of one single block of digital data is possible, and class A devices are able to agree on the order of their issuance in advance.

However, you must agree: despite such discrimination, being in the choppy night sea, it is very pleasant to know that on a supertanker passing nearby, the watchman for sure knows about the presence of your 45-foot yacht at his side.

There is another way to use AIS, and it consists in 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, even a separate device is not required for this, since manufacturers like Icom and Standard Horizon have begun to equip top models of VHF-mounted radios with this function.

It is convenient, compact, not expensive, but there is one big "but" - it is difficult to place even a text table on a small screen with a low resolution, let alone build even the most primitive semblance of a map ...

That is why AIS receivers have been developed that do not show graphical information at all, but are 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 Android 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 because it works in the same frequency range with the on-board radio. However, keep in mind that splitters used to connect two different devices to the antenna tend to reduce the signal level slightly, 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 the helmsmen in operational maneuvering. The AIS task also includes global control for ship movements for the benefit of a variety of shipping companies, traffic control centers, and government services that may need information about the location of certain ships or cargo. For this reason, AIS equipment can be based not only on ships, but also on coastal stations, many of which are connected in a global network.

Well, in order to more effectively use the system for the search and rescue of sailors in emergency situations, emergency buoys are 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 coast, warning passing ships of hazards such as poorly visible cliffs or beaconless promontories protruding far out to sea.

I must say that AIS receivers are placed even on satellites. After all, it is only on the surface of the Earth that the radius of propagation of its signal is limited by visibility to the horizon, and in space it can be received without problems even from hundreds of kilometers. Today, more than a dozen spacecraft revolve around the planet, monitoring marine traffic.

It is especially pleasant that you can get to the data on the global movement of ships without being the owner of a shipping company or an agent of the secret service. Information is available on a paid basis (for example, in the full version of Google Earth), however, in a somewhat truncated form, it can be viewed free of charge, for example, on the resource www.marinetraffic.com, whose interactive maps and user-friendly interface have been replicated on many other nautical sites.

Ship traffic map is a unique service, the purpose of which is tracking sea ​​vessels in real time... The technology for such monitoring of the movement of ships is based on a detailed base of received signals about the combination of the following parameters:

- dimensions of the vessel;
- his identification;
- speed and course of movement.

For this purpose, numerous spacecraft were launched into near-earth orbit, producing vessel tracking and transmitting the received detailed information to ground stations. Dedicated solely to monitoring maritime traffic, today more than 10 orbiters revolve around the Earth. As a result of the well-coordinated work of satellite systems, interactive map, with the help of which online vessel tracking has become an everyday event.

The data is updated in real time, although there may be delays in the transmission / receipt of information about the movement of ships within 60 minutes. Such inconsistencies occur in cases when ships leave the area of ​​reception / transmission of a satellite signal. In order to minimize such annoying situations, space satellites equipped with AIS (AIS automatic identification system) were created to help interested countries (with access to the sea / ocean), although recently the decoding of this abbreviation began to sound like automatic Information system, focusing on the role of the information component in the latest space technologies).

The goal of the development of the Automatic Identification System in 2000 was the urgent need to mitigate ship collisions in the rapidly expanding global fleet. Only ships with a displacement of more than 100 tons annually increase by 3,000 units, and the increase in the number of smaller seaworthy "plankton" has long defied uniform statistics.

Crossing the vastness of the world's oceans, not all meetings end at a safe distance. As a result of practice, it became obvious that conventional radars cannot painlessly solve such a problem.

In order to minimize the risk of collision, the International Maritime Organization has obliged to install AIS in order to produce online vessel tracking, on the following types sea ​​transport:

- cargo ships over 500 tons;
- "trucks" on international flights over 300 tons;
- all passenger ships excluding tonnage.

What is the AIS ship module designed to facilitate vessel tracking? This is a digital VHF transceiver, which is connected with navigation and ship systems. Every 2-10 seconds (depending on the speed of movement) or every 3 minutes in the parking mode, it transmits the following on-board dynamic information:

- current coordinates;
- navigation ("under the engine in motion", "at anchor") status;
- MMSI identification number;
- speed and course;
- exact time stamp.

In addition to dynamic labels, constantly (but somewhat less often, every 6 minutes), and this is exactly what is done real-time vessel tracking, static information is transmitted:

- vessel identification number IMO;
- its type and name;
- radio call sign and dimensions;
- type of positioning system (GLONASS, GPS, LORAN);
- information about the route;
- category of cargo and draft;
- the presence and number of people on board.

It is also possible to enter text manually if the vessel is in danger.

Automatic identification system for real-time vessel tracking consists of the following components:

- VHF transmitter;
- VHF receiver;
- satellite-global navigation receiver;
- equipment for input-output of information;
- Antenna (the mounting height of which is of decisive importance for the transmission / reception range and can reach significant values: from 15-20 to 40-60 miles if there is a base station nearby that increases the visible range).

All received information is displayed on a computer monitor or chartplotter in a graphical version of symbols superimposed on a map, or in the form of a table. In our case, it is marina traffic real time vessel tracking.

If, for some reason, the position of the ships is not fixed on the map, then it is possible:

- the ship is far from the base station;
- it is not equipped with an AIS system or it is defective;
- data is hidden for security reasons;
- the transponder power is below the required norm.

The sharp increase in the number of small seagoing vessels led to a direct interest of their owners in ensuring their own safety, therefore, equipping the vessel with AIS will make yacht tracking better, more mobile and simpler.

On the map presented on this page, you can observe ships in real time, tracking in Russian language. Here you can even watch the movement of your own yacht during your cruise along the sea coast - it is very convenient.

Search and determination of the position of the vessel

Attention! Positions of ships sometimes they may not correspond to the real ones and lag behind by an hour or more. All coordinates of the positions of the vessels are presented for informational purposes only. Search data from AIS cannot be used to plot a route

When searching, you will find accurate information about the movement of ships on the map according to the data AIS and you can see their photos. 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 we get the picture that you see above.

If you zoom in on the area, you will see specific ships. The map receives updates every few seconds. When you hover the cursor over the steamer, you can see its name, on the site you can get other information you are interested in for searching.

To find the steamer you are interested in, enter the name of the vessel and, if possible, its localization in the search bar and press the search key. The AIS map will show the ship's position in real time.

This card informs not only about the ships, but also about the cargo carried on them, which can be useful for the charterers of ships. Be with us and not one ship will be lost.

What is MarineTraffic?

Marine traffic is a shareware service to track the location of the vessel online. On the world map, you can find any ships that are in port or sailing. In the service options, you can also track the location of the vessel by its name in real time.
When you select a vessel on the map, a window pops up with information about the vessel online:

• name of the vessel
• type of vessel (container, tanker, passenger ship, etc.)
• ship status
• ship speed
• ship course
• draft

How Marine Traffic and AIS Works

At the present time, almost all ships are equipped with an automatic identification system AIS, which allows you to track the ship and avoid ship collisions. What is the maximum distance you can track the vessel on the map? It all depends on the height of the antenna located on the ship itself and at the nearest station on land. Conventional AIS stations cover a range of about 40 nautical miles (about 75 km). In some cases, the location of the ship can be tracked at a distance of 200 miles, which is, a lot, 370 km. But this is the case if the AIS station is located high above sea level, for example, on a mountain, and the ship itself is equipped with a good antenna. Thus, anyone can track the vessel online using the Marinetraffic service.

How can you track a ship on a map?

If you have the name of the ship, the easiest way to find out the location of the ship is to enter it in the map search and the system will immediately show the ship's position and information about it. If you know that the ship has not yet departed from a port or it could not have gone far from it, you can try to find the desired port in the same search form. And then by all the familiar mouse actions, hover over all ships and see information about them. Also, to make your search easier, you can filter the ships by type. For example, select only passenger, fishing or cargo ships. The service is intuitive and if you have the skills to use the map, then it will not be difficult for you to find out the location of the vessel in real time.