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70 Alarms
8.2 Collision avoidance alarms
The Simrad AI50 boasts a sophisticated, very simple
to use, collision avoidance alarm system. Which, when
enabled, becomes an important aid in the prevention of
collisions at sea and ensures even greater safety for your
vessel and passengers.
These collision alarms are:
CPA/TCPA alarm
Lost Vessel alarm
Guard Zone alarm
CPA/TCPA alarm
This is a Level 1 alarm. If you have activated the CPA/TCPA
Alarm from within the “Alarm Setup” Menu, the CPA/TCPA is
then calculated from the received position, COG and SOG of
the AIS transmissions, from all AIS equipped vessels within
VHF range.
CPA – “Closest Point of Approach” is the calculated
distance of how close a vessel will pass.
TCPA – “Time to Closest Point of Approach” is the
calculated time to reach the CPA.
The CPA/TCPA alarm values are set by the user, as
described in section 6.5. These are based on the last
calculated COG and SOG, assuming the vessel continues
on the same course, at the same speed.
It is the responsibility of the user to determine
how close another vessel may pass without being
dangerous, and how quickly the user can react to
manoeuvre their own vessel in order to avoid a
collision.
If both values calculated by the AI50 are less than, or
equal to the values set by the user, then an alarm will
activate, regardless of what screen the unit is in.
An audible alarm will sound and a window will open
displaying the following information. Figure 8.1.
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Содержание SIMRAD AI50
Страница 1: ...MANUAL SIMRAD AI50 Class B Transceiver 988 0168 003 Iss 3 0 English ...
Страница 8: ...8 Contents Blank page ...
Страница 12: ...12 Introduction Blank page ...
Страница 56: ...56 Menu Mode Blank page ...
Страница 76: ...76 Alarms Blank page ...
Страница 82: ...82 Appendix Blank page ...