MetOcean Telematics MMI-513-00000, Руководство пользователя, Страница: 17 / 56

iBCN – User Manual
TD 13 – 053
15
6 Operation
The iBCN is primarily intended for locating and
recovering free drifting or moored, surface or
submerged assets at sea.
After being turned on, the iBCN can be submerged where
it is deactivated by detecting submergence. The iBCN can
be deployed underwater for up to 24 months.
The iBCN may be configured to use a GPS Satellite Check
to determine when the beacon has surfaced. While
submerged, the iBCN will not detect any GPS signal and
this is used to power down the electronics to conserve
battery power.
The sampling of GPS signal is a user-configurable option
to adjust surface response time while maintaining
suitable mission life.
The iBCN (7500 meter version only) is also equipped
with a conductivity sensor to monitor submergence
state. This is a lower power method of detecting the
surface compared to the GPS Satellite Check method.
The sensor samples for a period of one second at the
same interval as the GPS interval to a maximum of 5
minutes.
NOTE:
It may take up to 5 minutes after surfacing
for the first sensor sampling to occur. Depending on
sea conditions it may take a few intervals before the
iBCN realizes it has surfaced and begins to transmit
its location.