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The purpose of the locator E931 is the
position and time determination using the signals of the Global Positioning
System (GPS). The position determination will be used for the automatic
detection of buoy drift , the time determination is used for the synchronization
of flashing of various aids to navigation. It consists of a GPS receiver
and a microprocessor based control unit, designed as a Eurocard form factor
device. In order to achieve long life span it should be installed into
a hermetic enclosure.
Features
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Periodical reception of the GPS signals
with the user-defined period
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During every receiving session the
deviations will be determined:
- between the GPS coordinate values and recorded nominal values;
- between the GPS time value and t thealue of the built-in clock.
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Computing and recording of the mean value
of geographical coordinates. For this the coordinate values of 256 last
receiving sessions will be recorded in the memory
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Sending of the time messages to the Abus
local area network for the adjustment of the built-in clocks of local system
units
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Sending emergency messages to the communication
controller, connected to the Abus when
- deviation of the geographical coordinates is greater than a pre-set value;
- deviation of the mean value of geographical coordinates is greater than
a pre-set value;
- the GPS signal
could not be received during the proper time;
- the voltage on the GPS receiver is below the pre-set limit |
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Optionally,
the functions of GPS locator can be reprogrammed to
address the specific requirements of the customer
Specifications
| Input
voltage |
9
... 30V DC |
Current
consumption:
when
stand-by
when
receiving GPS signals |
1.5mA
200mA |
Deviation
of coordinate
with
95% probability
average
over 8 hours |
±15m
±100m with "selective availability
activated"
±50m with "selective availability
activated" |
| Time
accuracy of the output message |
better
than 10ms |
| Stability
of the built-in clock |
±10ppm
(when no GPS signal available) |
Stability
of the rising time of
1 Hz synchro-puls |
not
worse than ±5ms |
| Period
of the receiving of GPS signals |
from
1 minute up to 2 hours |
| Format
of timing messages |
Y,M,D,Min,Sec,mSec |
| Period
of time messages |
from
1 minute up to 2 hours |
| Data
rate at the Abus |
9600bps |
| Temperature
range |
from
-30°C to + 60°C (IEC 60068-2-1, 2, 14) |
| Relative
humidity |
up
to 90%, at the temperature +35°C (IEC 60068-2-3) |
| Dimensions |
100
x 70 x 20mm |
| Weight |
0.3kg |
Layout and dimensions
of the GPS Locator E931 - Eurocard form factor design
If you need more information, including
the information on prices and availability of our products, please do not hesitate to contact
our marketing group.
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