For navigation to the time delayed charts, our service now makes use of Macromedia Flash software. You will need Version 7 of the Macromedia Flash Player. On the left you should see a map of the world. Click on any continent to see AISLive coverage in that area. Then click on an AIS logo to see the charts for that area.

When used with an appropriate graphical display, shipboard AIS enables the provision of fast, automatic and accurate information regarding risk of collision by calculating Closest Point of Approach (CPA) and Time to Closest Point of Approach (TCPA) from the positional information transmitted by target vessels.

AIS is a shipboard autonomous transponder system, operating in the VHF maritime band. It allows ships to easily track, identify, and exchange pertinent navigation information from one another for collision avoidance. The AIS information from the vessels can also be gathered via base stations ashore, passing the information to dedicated AIS data providers.

An FOI request for information relating to the development of Automatic Identification System (AIS) Networks

Home page, AIS
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A compact Automatic identification system
The AIS 200 consists of a control unit, radio transceiver and an antenna. The control unit has a compact design easy to fit into available space within reach of the mariner, in accordance with the IMO installation guidelines. The transceiver unit can be remotely mounted in an out-of-the-way place. The AIS 200 is type approved and complies with international standards for automatic identification systems. It provides vessel position, speed and course over ground as well as static and voyage related information

The AIS (Automatic Identification System) is a new tool on the navigation bridge of sea- going vessels. The system broadcasts the ship’s identity, GNSS position, heading, course, speed and a few other data relevant for collision avoidance and traffic management. Other ships in the vincinity and shore-based services can receive the transmissions and use them in addition to the information made available by the conventional sensors, such as radar.

Routing and Safe Seaways
Due to the increased transportation of oil and chemicals over the North Sea, the pressure on the marine environment has grown considerably over the last years. Two demonstration projects focus on routing and safe seaways

Ett av uvecklingsprojekten är AIS, som är en teknik att identifiera och följa sjöfart från andra fartyg och från landstationer.

This site is intended for Ship Operators. It is intended as a source of information about AIS.  This site is also intended to promote modifications to AIS that will make it a more useful tool for Ship Operators. The content of this site is not financed or controlled in any way by AIS transponder manufacturers or ECDIS

With this information, you could call any ship over VHF radiotelephone by name, rather than by "ship off my port bow" or some other imprecise means. Or you could dial it up directly using GMDSS equipment. Or you could send to the ship, or receive from it, short safety-related email messages.

The AIS is a shipboard broadcast system that acts like a transponder, operating in the VHF maritime band, that is capable of handling well over 4,500 reports per minute and updates as often as every two seconds. It uses Self-Organizing Time Division Multiple Access (SOTDMA) technology to meet this high broadcast rate and ensure reliable ship-to-ship operation.

The IMO SOLAS requires AIS to be fitted aboard all ships of gross tonnage =>300 for international voyage. The system can be interfaced with Radar and Electronic chart to provide information about the ships in vicinity for safety of navigation and security.

AIS helps to resolve the difficulty of identifying ship when not in sight, at night, by radar limitation or at distance by providing a means for ships to exchange ID, position, course, speed and other ship data, with all other nearby ships and VTS stations through a standardized VHF transponder system.

AIS receiver displays local vessel traffic including name, call sign, length, speed, course and distance from your position can be interfaced/integrated with the Radar targets echo, GPS position and electronic chart information that make the navigator possible to navigate and do the collision avoidance with an overall picture easier