Log In Register
Cart0 product
Total price $0
  English 

Technical support

Useful articles


onnectors

onnectors

The article is devoted cable connectors that are most often used for radio and navigation devices.

Articles about Radio Equipment
Articles on Navigation Equipment
Articles about Satellite Equipment
Articles about the emergency rescue property
Articles Other
Usefull
Reference
Catalogs
In Stock


19.11.2013

Automatic Identification System (AIS)

 Automatic Identification System (AIS) is designed to improve the safety of navigation, assisting in the efficient navigation of ships, environmental issues, and to interact with the Vessel Traffic Service (VTS) and meets the following functional requirements:

1. work in the 'ship-to-ship' to avoid a collision;

2. as a means of transmitting information about the vessel and its cargo to shore-based services;

3. as a tool for VTS systems, ie in the 'ship-to-shore.'

Automatic Identification System (AIS) transponder consists of a controller and control (display with a minimum of keys). AIS transponder is capable of providing the court and other authorities information about the vessel in automatic mode with a fixed precision and speed, contributing to accurately tracking. Data transmission takes place with minimal crew and a high level of confidence.

 Increasing the number of vessels equipped with AIS transponders and objects associated with navigation, can increase the safety of navigation. Therefore, IMO decided that gradually all vessels under regulation Convention for the Safety SOLAS, must be equipped with equipment Automatic Identification System (AIS) according to a specified schedule. Starting equipment of vessels that equipment - 1.07.2002, depending on the class of ships and their sizes (required for all newly built ships) to 1.07.2008 for all ships built before 01/07/2002, but did not participate in international flights. All vessels of over 300 tons and engaged in international voyages must be equipped with AIS 1.07.2004, before the first certification for safety, or at least no later than 31.12.2004.
 
 Marine Automatic Identification System (AIS) is a system of  notification of the location and reporting system of the vessel. It allows vessels  equipped with AIS to automatically exchange information dynamically and  regularly updated data on its location, speed, course, etc. (Eg, data  of the ship) with aircraft equipped similarly. Location  determined by GPS or GLONASS systems and communication between courts exercised in VHF? range (VHF). 
 

AIS devices are available in several types: 

 
? Class A transceivers They are designed for installation on commercial vessels such  as cargo ships and large passenger vessels. The transceivers transmit the class  information with greater power VHF? signal transceivers than class B so that these  signals can be received at more distant vessels. Furthermore, these signals are  frequently retransmitted. Availability transceivers class is mandatory for all ships of 300 gross tons on international flights and on some  types of passenger vessels operating under the mandate of SOLAS. 
? Stations Inland AIS. Class A transceivers are similar, but  offer additional features for use on inland waterways 
? transceivers class B. In many respects similar to the transceivers  of class A, but they tend to have a lower cost due to less stringent performance requirements. Class B transceivers transmit data with a lower  signal strength and a lower data rate than transceivers  class A. 
? AIS base station. AIS base stations used control systems  for vessel traffic monitoring and control gear AIS transponders. 
? Transceivers navigational aids (CHO, AtoN). CHO  transceivers are mounted on buoys or other hazardous for  shipping locations. These transceivers transmit data about their location  around the courts. 
? AIS receivers. AIS receivers receive transmission from the transceivers Class A, Class  B, CHO and AIS base stations, but do not convey any information about the vessel on which they are  installed. 
? AIS-SART transmitter automatic identification system for search and rescue. 
 
 

Static and dynamic data vessel 

 
The information transmitted by the AIS transponder, is divided into two categories:  static data and dynamic data. 
 
Dynamic vessel data that include the location, the speed over ground  (SOG, SOG) and the track angle (PU, COG), are calculated automatically by EPFS external  or internal GNSS receiver (depending on which one is currently has  valid data and a higher priority). To reflect the current dynamic  state of the vessel must also constantly update the navigation state parameter. 
 
Static data are the information about the ship, which must be  programmed into the AIS transceiver. They include: 
 
? Maritime Mobile Service Identity (MMSI, MMSI) 
 
? Name of the vessel 
 
? Call vessel (if available) 
 
? Type of vessel 
 
? Dimensions of ship 
 
 

Licensing manual AIS 

 
In most countries, AIS transponder operation permitted provided that  licenses for VHF? contact. Therefore vessel that must be installed AIS transponders  must have a license for VHF radiotelephone modern? range, which specifies the type of  AIS vessel and call number MMSI. For more information on the requirements  for licensing radio ship, please contact with the relevant authority in your  country. 
 
 
 

Features

Characteristics of AIS stations

Transmission interval

information

Vessels with a velocity of less than 2 units

3 minutes

Vessels with speed 2-14 knots

30 seconds

Vessels with speed 14-23 knots

15 seconds

Court at a speed exceeding 23 knots

5 seconds

Aircraft Search and Rescue

10 seconds

Base station

10 seconds

Aids of navigation

3 minutes

 

ERI ship types (ERI):

Code type of vessel

Class of a ship

 

The first digit

The second digit

 

 

Main types of vessels

1

#

Reserve

2

#

WIG

4

#

High-speed craft (HSC)

6

#

Passenger ships

7

#

Cargo ships

8

#

Tankers

9

#

Other types of ships

#

0

All ships of this type (without specifying)

#

1

Carrying DG, HS, or MP Category A

#

2

Carrying DG, HS, or MP category B

#

3

Carrying DG, HS, or MP category C

#

4

Carrying DG, HS, or MP category D

#

5

Reserve

#

6

Reserve

#

7

Reserve

#

8

Reserve

#

9

No further information

 

 

Special Court

5

0

Pilot boats

5

1

Search and rescue vessels

5

2

Tugs

5

3

Port requirements

5

4

Vessels with equipment to eliminate pollution

5

5

Patrol Boats

5

6

Reserve - to designate local types of vessels

5

7

Reserve - to designate local types of vessels

5

8

Medical transports (as defined by the Geneva Convention of 1949 and the Additional Protocols)

5

9

Court in accordance with Resolution RR 18 (Mob-83)

 

 

Other vessels

3

0

Fishing vessel

3

1

Towing vessel

3

2

Towing vessel tug at length exceeding 200 m

3

3

Vessel engaged in dredging or underwater operations

3

4

A vessel engaged in diving operations

3

5

A vessel engaged in military operations

3

6

Ships sailing

3

7

Recreational vessel

3

8

Reserve

3

9

Reserve

 
Note:
1. DG - dangerous goods; H - harmful components; MP - marine pollutants .
2.# - indicates the possible combinations of the first and second digits.

Back to the list