Limitation of AIS and Possible Future Application of AIS

This section should give a
introduction to:

The limitation of AIs
system

Operator attention to
possible AIS limitations

Key Points

Not all ships are equipped with AIS

AIS may be switched off

AIS information may not be complete

Erroneous information

Accuracy of AIS information

Poorly configured or calibrated ship sensors

Missing sensor

OOW warning

Use of AIS for collision
Avoidance

AIS in Collision avoidance decision making

AIS impact on the navigational watch

AIS assistance

Additional and possible future applications

Text messages

DGNSS corrections

AIS in SAR operations

Aids to navigation

AIS in an overall information system

AIS as part of higher security

Use of AIS - Functions of AIS

This section should give a
short introduction to:

G use of AIS

Use of AIS information in collision avoidance

Use of AIS by VTS

Use of AIS in search and rescue

Key Points

The MKD display

COLREG Rule 7: Risk of Collision

AIS main functions

AIS performance

AIS accuracy

AIS and Rader

Comparison of radar/ARPA and AIS information

Use of AIS information for collision avoidance

Early action to avoid collision

AIS and VTS

VTS limitations

Possible Future options

Global AIS

AIS in marine rescue and Co-Ordination

How AIS Works - Operation of AIS

This section should give a
short introduction to:

Operational aspects of AIS

Functions and features

Human aspects

Key Points

The AIS transponder unit.

Automatic communication.

SOLAS requirements.

AIS Information sent by ships.

Static information update.     

Dynamic information update.

Voyage related information update.

Checking AIS data.      

Display Of AIS data.

Recommended AIS symbols.

Sleeping target symbol.

Activated target symbol.

Selected target symbol.

Dangerous target symbol.

Lost target symbol.

AIS information displayed
on ARPA and ECDIS.

Minimum graphical information.

Symbol harmonization.

Priority of AIS target symbols.

Common reference.

AIS information on radar .

Suppressing dangerous
targets.

Course Over Ground (COG) Vector.

Speed Over Ground (SOG) Vector.

Automatic target
acquisition.

Warning limits.    

Automatic display
selection.

Human interface.

Human factor.

Technical Introduction – Components of AIS

This section should give a
short introduction to:

General technical
description

Description of main
components

AIS components

AIS stand alone

VHF channels

Ship reporting capacity

AIS broadcast mode

AIs overload

Dynamic information

Dynamic information update
rate

Technical complexity

Power

VHF antenna installation

Minimum keyboard and
display

Pilot plug

Display System

Built-in Integrity Test –
BIIT

AIs additional requirements

What is AIS - Automatic Identification System

What is AIS - Automatic Identification System. This section should give a short introduction to:

The AIS System
Display of AIS information
Available Options
What is Automatic Identification system (AIS)
AIS carriage requirements
AIS caution
Objectives of AIS
The Propose of AIS
Short Description of AIS
AIS main components
AIS provided information
AIS display of information
Graphical display
Sleep target
Activated target
Selected target
Dangerous target
Graphical standards