HELIX (Ver. 1) OEM Board Set with GPS Engine
Interfaced
to 9522 L-Band Data Transceiver |
FEATURES
9522A Daytona L-band transceiver (LBT)
Microprocessor with 16 I/O
GPS engine
A/D converter (ADC) - 16 bit, 4 channels
Data storage - EEPROM 128K
Clock - 32,768 Hz (set from GPS)
Intelligent power supply module
Low power consumption (<1 mA sleep; 8W max TX)
Optional emergency Li-ion battery-back up
RS232 port - for programmable sampling
APPLICATIONS
Data transmission from remote platforms
System control and data acquisition (SCADA)
Location beacons e.g. search and rescue (SAR)
Asset tracking/piracy (SSAS)
Internet and email access
Phone & adapter available for voice
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HELIX Iridium Satellite LBT Board Set |
PLATFORMS
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Ships, AUVs, ROVs, buoys, moorings, floats, containers, polar installations, fishing vessels, life rafts, land vehicles, personnel. |
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DESCRIPTIONThe HELIX/GPS/Iridium board set is designed for versatility to allow for a multitude applications. It can be used either in stand-alone mode to simply collect and transmit data e.g. location beacon/SCADA unit, or as an add-on to users' own data collection systems and sensors suite e.g. for data transmission from remote static or mobile platforms and remote reprogramming of those platforms.
Power supplies to the GPS module, ADC and LBT only power up as required in order to minimise the overall power consumption. There is an external power interrupt option that switches to a back-up Li-ion battery supply which, on reconnection of the external power, is recharged automatically.
Input voltages from up to four external sensors can be measured with the ADC channels. Please note if the battery back up option is required then only two of the four ADC channels are available.
Out-going data messages are transmitted using the Iridium Short Burst Data (SBD) service as standard. The maximum message length is 1960 bytes, data strings greater than this are sent as a series of SBD messages. In-coming data messages of up to 1890 bytes are queued at the Iridium gateway and automatically downloaded one at a time to the unit as part of the transmission process. The user transmits and receives the SBD messages as email attachments.
GPS strings are in the NMEA format. The GPRMC string is used as standard (latitude, longitude, date, time, course and speed) but other or all parts of the NMEA string can be output if required. The on-board clock is set from the GPS time once a valid fix is acquired (until then it runs as a lapsed timer).
Antennas for the board set are described elsewhere and how the boards can be used as part of a fully integrated satellite solution are also shown.
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SPECIFICATION
Power
External Voltage
Sleep Current
Maximum Current
Average current
Optional battery back-up
Mechanical
Size
Weight
Fixings
On-board Connectors
RS232
AD converter
Power in
GPS antenna
Iridium antenna
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8-24 Vdc
< 1 mA
3 A max., during transmission
30 mA/hr (TX once per hour)
8.4 V; 4 Ah or 11 Ah Li-ion
210 (l) x 54 (w) x 50 (h) mm
500 g with 4Ah Li-ion battery
4 x M4 Socket Cap Heads
4 pin 1.5 mm pitch ZH4
6 pin 1.5 mm pitch ZH6
Screw terminal
MCX Jack
TNC Jack
| GPS Receiver
Protocol
Lat. (& Long.)
Position
Velocity
Date/Time
Channels
RX Power
Input voltage
Current drain
Cold (hot) start
Reacquisition
Serial port
Baud rate
Sensitivity
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NMEA-0183 V3
dd(d)mm.mmmm N/S (E/W)
3 m (CEP); 6 m 2DRMS
0.2 m/s (50%)
ddmmyy/hhmmss 20 ns static
Tracking up to 12 satellites
180 mW
3 Vdc (2.9 to 7)
50 mA typical
50 s (8 s). Sky search 5 min.
0.1 s (update 1 s)
RS232 (or CMOS 2.7 Vdc)
4800
-150dBm |
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