Determine the location of the bulk carrier Genesis. Online ship traffic in real time (AIS)

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 get acquainted 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 AIS of ships 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. You can find out the time that has passed since the last coordinate update by hovering the cursor over an object.

Ship movement map in real time represents interactive map, on which you can in mode online observe the movement sea ​​vessels. Also, by clicking on the map you can find out information about a specific vessel. The map is currently set to the Italy region. But the map can be dragged with the mouse right in the interactive window. If you want to see more ships, drag the map with your mouse to another area. Ships can be sorted using the menu in the upper right corner of the map map options. You can also reduce the map scale:

In honor of the Black Sea Fleet Day, I have prepared short review related to marine themes.

Brief information:

Black Sea Fleet Day is an annual holiday celebrated on May 13 in honor of the creation of the Black Sea Fleet. The day was established in 1996.
After the annexation of Crimea to Russia, Empress Catherine II signed a decree establishing the Black Sea Fleet. On May 13, 1783, 11 ships of the Azov flotilla under the command of Admiral Fedot Klokachev entered the Akhtiar Bay of the Black Sea. This happened two months after the annexation of Crimea to Russia.
Soon, construction of a city and port began on the shores of the bay, which became the main base of the Russian fleet and was named Sevastopol.

Since the topic is maritime, there is a corresponding map - “Real Time Ship Movement Map”, presented by the MarineTraffic.com portal:

Initially, the map is divided into squares; as you zoom in, multi-colored boats appear, which determine the location of specific ships. You can click on any vessel, the corresponding information, photo, route sheet, etc. will appear. Information about ships can be received within an hour, so the data arrives in almost real time. On this moment There are more than 10,000 ships in the database, each of them can be found in the website gallery.

Also on the site you can look at photos of ports from anywhere on Earth, places where there is a broadcast of panoramic views via web cameras, and a lot of interesting information on maritime topics are collected separately.

And once again I congratulate everyone on Black Sea Fleet Day!

Search and determination of the vessel's position

Attention! Court positions sometimes they may not correspond to real ones and 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 movement of ships on the map according to the data AIS and you can see 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, for example, on the region of Europe and get the picture that you see above.

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.

This map informs not only about ships, but also the cargo carried on them, which can be useful to ship charterers. Stay with us and not a single ship will be lost.

On this page you can see the movement of sea and river boats in real time.

AIS (Automatic Identification System) - in shipping, a system used to identify ships, their dimensions, heading and other data using VHF/VHF radio waves.

IN Lately There has been a tendency to interpret AIS as an Automatic Information System (English: AIS Automatic Information System), which is associated with the expansion of the functionality of the system compared to the ordinary task of identifying vessels.

In accordance with the SOLAS 74/88 Convention, it is mandatory for ships with a displacement of more than 300 register tons on international voyages, ships with a displacement of more than 500 register tons not engaged in international voyages and all passenger ships. Vessels and yachts with a smaller displacement can be equipped with a class B device. Data transmission is carried out on international communication channels AIS 1 and AIS 2 in the SOTDMA protocol (Self Organizing Time Division Multiple Accsess). Frequency modulation with GMSK keying is used.
Purpose

AIS is designed to increase the level of navigation safety, efficiency of navigation and operation of the vessel traffic control center (VTCS), protection environment, providing the following functions:

As a means of preventing collisions in ship-to-ship mode;
as a means of obtaining information about the vessel and cargo by competent coastal services;
as a VTS tool in ship-to-shore mode for controlling vessel traffic;
as a means of monitoring and tracking ships, as well as in search and rescue (SAR) operations.

AIS components

The AIS system includes the following components:

VHF transmitter,
one - two VHF receivers,
global satellite navigation receiver (for example, GPS, GLONASS), for Russia the GLONASS module in the AIS device is strictly mandatory, the main source of coordinates. GPS is auxiliary and can be taken from the GPS receiver via the NMEA bus;
modulator/demodulator (converter of analogue data to digital and vice versa),
microprocessor based controller
equipment for input/output of information to control elements

Operating principle of AIS
System Overview from US Coast Guard

The operation of AIS is based on the reception and transmission of messages via VHF waves. The AIS transmitter operates at longer wavelengths than radars, which allows the exchange of information not only over direct distances, but also in areas with obstacles in the form of small objects, as well as in bad weather conditions. Although one radio channel is sufficient, some AIS systems transmit and receive on two radio channels in order to avoid interference problems and not disrupt the communication of other objects. AIS messages may contain:

Identification information about the object,
information about the state of the object, received automatically from the object’s control elements (including from some electro-radio navigation devices),
information about geographic and time coordinates that AIS receives from the global navigation satellite system,
information entered manually by facility maintenance personnel (security-related).

The transfer of additional text information between AIS terminals (paging) is provided. Transmission of such information is possible both to all terminals within the range, and to one specific terminal.

In order to ensure the unification and standardization of AIS, the International Radio Regulations stipulate two channels for use for AIS purposes: AIS-1 (87V - 161.975 MHz) and AIS-2 (88V - 162.025 MHz), which should be used everywhere, with the exception of regions with special frequency regulation.

The digital information transmission rate in the AIS channel is selected at 9600 bps.

The operation of each AIS station (mobile or base) is strictly synchronized to UTC time with an error of no more than 10 μs from the built-in GNSS receiver (in the Russian Federation, according to signals from the combined GLONASS/GPS GNSS receiver). To transmit information, continuously repeating frames lasting 1 minute are used, which are divided into 2250 slots (time intervals) each lasting 26.67 ms.

Text uses 6-bit ASCII codes.

Displaying information about the environment in modern AIS is possible in 2 modes - both textual in the form of a table with a list of nearby vessels and their data, and in the form of a simplified schematic map depicting the relative positions of vessels and distances to them (calculated automatically based on the data transmitted by them geographic coordinates.) AIS is included in the list of equipment that is required to be provided with uninterruptible battery power.
Message structure
Static information

MMSI number
International Maritime Organization (IMO) number
Radio call sign and name of the craft
Dimensions
Type of craft
Antenna location data (from GNSS Glonass or GPS)

Data is transmitted every 6 minutes
Dynamic information

Location (latitude and longitude)
Time (UTC)
Age of information (how long ago it was updated)
True heading (relative to the ground), heading angle
True speed
Roll angle, trim
Pitch angle
Angular rate of turn
Navigation status (for example: Unable to steer or Limited ability to maneuver)

And other information from repeaters and sensors of electro-radio navigation devices and systems
Other information

Destination
Arrival time (ETA)
Vessel draft
Cargo information (cargo class\category)
Number of people on board
Messages for warning and safety of cargo transportation

The throughput of each channel is up to 2000 messages per minute.

Source wikipedia

MarineTraffic

This open, community project is designed to collect and present data that can be used in research such as:
- Study of maritime telecommunications regarding efficiency and propagation parameters
- Simulation of ship traffic to assist in the field of maritime safety and resolution of critical situations
- Interactive Information Systems design
- Design of databases that provide information in real time
- Statistical processing of port traffic using applications in operational research
- Development of applications for identifying sources of pollution
- Development of efficient algorithms for sea route and estimation to determine the estimated time of arrival of the vessel
- Correlation of the received information with meteorological data
- Cooperation with Institutes involved in environmental protection.
This project provides free, real-time information to the public about ship movements primarily along the coastlines of many countries around the world.
Currently, the project is being organized by the Products and Systems Department Engineering Design,University of the Aegean, Greece.
Primary data collection is based on the Automatic Identification System (AIS).
There is a constant search for partners to work in the community.
They will have an AIS receiver installed and will be able to share their area data with others to cover as many destinations and ports around the world as possible.

The system is built on the basis of AIS (Automatic Identification System). Since December 2004, the International Maritime Organization (IMO) has required that every ship over 299 GT be equipped with an AIS transmitter, which transmits position, speed, course and various static information such as the ship's name, dimensions and flight details.

AIS was originally intended to help ships avoid collisions and also to assist port authorities to better manage maritime traffic.
The AIS transponder on board a vessel includes a GPS (Global Positioning System) receiver and a VHF transmitter that transmits data on the vessel's movement on two channels (frequencies 161.975 MHz and 162.025 MHz) and makes this data available to the public. Other vessels or base stations can receive this information and, using special software, display the vessel's location on a chartplotter or computer.

Typically, ships with an SAI receiver connected to an external antenna located 15 m above sea level will receive information in a range of 15-20 nautical miles. A base station located at a higher altitude can extend the reception range to 40-60 nautical miles, even over mountains, depending on terrain, antenna type, obstacles around the antenna and weather conditions. The most important factor is the height of the antenna. The higher the better. For example, an antenna located on a mountain at an altitude of 700 m can receive signals from ships at a distance of 200 nautical miles!
Base stations that reliably cover a range of 40 nautical miles can periodically receive signals from more distant ships.

The base station is equipped with a marine band antenna, an AIS receiver and a computer connected to the Internet.
The AIS device receives data, which is processed using simple software on a PC, and then this data is sent to a central database via a web service. Software is free for interested users, under the GNU license.
The data received by the AIS receiver is encoded into a single NMEA sentence (64-bit plain text).
Example: !AIVDM,1,1,B,1INS<8@P001cnWFEdSmh00bT0000,0*38
Messages include three main types:
1. Dynamic information - vessel position, speed, current position, course and rate of turn.
2. Static information - vessel name, IMO number, MMSI, dimensions.
3. Special information - purpose, ETA and projects.

The central database receives and processes a large amount of data, and stores the most important parts of it. It also includes port and area geographic information, photographs of the vessel and other information. The current positions of the vessel and/or track are displayed on the map using the Google map API.

The received data is loaded into the database in real time and, therefore, it is immediately highlighted on the map. However, some positions shown on the chart may not be constantly updated (for example, when a ship moves out of range). Vessel positions shown on the chart may be up to 1 hour out of date.

The MarineTraffic system only covers certain coastal areas where land-based AIS receiving base stations are installed.
Possible reasons why ship positions are not displayed on the map are as follows:
- The vessel is not equipped with an AIS transponder, the transponder does not work or does not work correctly;
- The vessel is in an area where there is no base AIS receiving station nearby;
- The transponder power is not sufficient for normal reception of signals by the ground station. The power of class A transponders is much lower than the power of class B transponders.
It also depends on the type and height of the antenna and the type of cable.
- AIS transponder is not configured correctly.

Map icons may be slow to display. This may be due to too many vessels being displayed, web technology, javascript and web browsers.
The Internet Explorer browser (especially version 6 and older) is very ineffective in web applications of this kind.
The following browsers show significantly better performance and we suggest using one of them: Opera, Chrome, Firefox.

The system can receive the positions of vessels that have not yet transmitted static information (name, dimensions, etc.) This happens because static vessels transmit information less frequently. In this case, instead of the vessel's name, its MMSI will be displayed (for example, 239923000). There is also a small possibility of incorrect or corrupted data recording. This occurs due to the following reasons:
a) malfunction of the vessel’s AIS transponder
b) Global Positioning System (GPS) error and
c) failure of the ship's crew to correctly configure the information transmitted by the AIS transponder (this refers to static information, such as ship name, type and dimensions, as well as destination and estimated time of arrival).

The system is based solely on information received from ships transmitted by their AIS transponder.
Therefore, correct configuration of the AIS transponder by the crew is very important! In particular, the person who is responsible for operating the AIS transponder can greatly assist in the correct presentation of vessel information by taking care of the following:
a) Correct updating and verification of Static Information that is recorded in the AIS block. These include: vessel name, vessel type, vessel dimensions, IMO, MMSI number, AIS device relative position.
b) Properly updating Travel Information, i.e. destination, ETA and draft, before commencement of each voyage. If this information is correct, the vessel will appear in "Expected Arrival" for each port and an estimated arrival time will be provided for all parties involved. One port should be entered each time, and any additional information (such as country or multiple ports) should be avoided.

Moving ships are displayed as ship icons. Vessels that are not moving or moving at a speed of less than 0.5 knots, are anchored or moored are displayed as squares.
Ship icons and tracks are colored according to their type (cargo, tanker, passenger, etc.)

The MarineTraffic system can be expanded to cover any area around the world. You can independently install an antenna, an AIS receiver, connect it to a computer connected to the Internet and start sending data immediately. You will immediately see on the map the vessels that were received by your receiver. For those who wish to have their area covered on the map, an acknowledgment on the main site, links to a company or personal site, or any other links upon request are included.

If you have a private sailboat that is within MarineTraffic's coverage area, you can install an AIS transponder on board to record your position on a map in real time. Installing an AIS transponder on small boats is optional and you are permitted to use a CLASS “B” transponder. CLASS "B" is cheaper than CLASS "A". CLASS B transponders are intended for ships with a displacement of less than 300GT. Price from 700 to 2000 euros.
Additionally, you can use the iAIS app on your smartphone (iPhone/iPad or Android) on board to report your vessel's position directly to MarineTraffic, without having to operate an AIS transponder.
There are at least 5 different methods for submitting your own position in MarineTraffic.

The technology for such monitoring of ship movements is based on a detailed database of received signals about a set of the following parameters:

— dimensions of the vessel;
— its identification;
— speed and course of movement.

For this purpose, numerous spacecraft have been launched into low-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 orbit the Earth. As a result of the coordinated work of satellite systems, an interactive map appeared, with the help of which vessel tracking online has become a common event.

Data is updated in real time, although there may be delays in the transmission/reception of information about the movement of ships within 60 minutes. Such inconsistencies occur in cases where ships leave the satellite signal reception/transmission area. In order to minimize such annoying situations, to help interested countries (those with access to the sea/ocean), space satellites equipped with AIS (AIS automatic identification system, although recently the decoding of this abbreviation began to sound like an automatic information system, placing the main emphasis on the role of the information component in the latest space technologies).

The development of the Automatic Identification System in 2000 was driven by the urgent need to reduce collisions among vessels in the world's rapidly expanding fleet. Only ships with a displacement of more than 100 tons increase annually by 3,000 units, and the increase in the number of smaller seaworthy “plankton” has long defied a single statistics.

When crossing the vast oceans of the world, not all meetings end at a safe distance. As a result of practice, it became obvious that such a problem could not be resolved painlessly with conventional radars.

In order to minimize the risk of collision, the International Maritime Organization has mandated the installation of AIS in order to online ship tracking, for the following types of sea transport:

— cargo ships over 500 tons;
— “trucks” on international flights over 300 tons;
— all passenger ships excluding tonnage.

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

— current coordinates;
— navigation (“under the engine in motion”, “at anchor”) status;
— MMSI identifying number;
— speed and course;
— exact time stamp.

In addition to dynamic tags, constantly (but somewhat less frequently, every 6 minutes), which is exactly what is done real-time vessel tracking, static information is transmitted:

— IMO vessel identification number;
- 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;
— presence and number of people on board.

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

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

— VHF transmitter;
— VHF receiver;
— satellite-global navigation receiver;
— equipment for input/output of information;
— antennas (the mounting height of which is crucial for the reception/transmission 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 the map, or in the form of a table. In our case, this is marina traffic real-time vessel tracking.

If for some reason the positions of the vessels are not recorded on the map, then it is possible:

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

The sharply increased number of small sea vessels has led to a direct interest of their owners in ensuring their own safety, so equipping a vessel with AIS will make yacht tracking better quality, more mobile and easier.

On the map presented on this page you can observe vessels 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 - this is very convenient.