speed of the vehicle with the use of GPS and/or GLONASS systems and transmission of adequate data trough GSM/GPRS network or satellite communication system to the control server. FUNCTIONAL CAPABILITIES OF GPS NAVIGATOR - Location detection on demand from the control server.
- Automatic transmission of coordinates after variable time interval.
- Data transmission via GPRS channel.
- Events transmission over SMS channel in case of GPRS channel failure.
- Automatic change-over to an alternative GSM provider when losing GSM signal.
- Forced change-over to an alternative GSM provider to save communication costs.
- When leaving a GSM coverage area information is stored in the temporary memory (up to 256 points).
- Transmission of stored information to the control server when entering GSM coverage area. Remote updating of inner software via GSM/GPRS channel.
FEATURES OF GPS NAVIGATOR - Increased reliability of system operation due to the possibility to cooperate with two GSM providers.
- Simple installation of the equipment because of GPS and GSM antennas placed inside the body of the navigator it is required only to connect it to the power supply.
- Increased environmental stability the body complies with I51 protection level.
- Possibility to connect a visual display.
TECHNICAL DATA Quantity | Value | GPS-receiver | Chip set | GSP3F (SiRF starIII ) | Common parameters: receive frequency number of chnnels | 1575,42 Hz (L1) 20
| Measurement error: location, m speed, m/sec time, msec | <10, 2D RMS <0,1 <1
| Coordinate system | WGS-84 with the possibility to transform into other coordinate systems | Measurement time, sec: next measurement hot start warm start cold start | 0,1 8 38 42
| Antenna | active (28 dBi), built-in | GSM-modem | GSM frequency range | 900 Hz, 1800 Hz | Output power 900 Hz 1800 Hz | Class 4 (2 W) Class 1 (1 W)
| GPRS | GPRS class 10 | SIM card interface | 1,8 or 3 | Antenna | Omnidirectional, built-in | Power supply | Supply voltage, V | from 9 t 20 | Consumed power, W: in transfer mode in wait mode | < 10 W < 0,4 W
| Operating conditions | Working temperature range, o | from 40 t +60 | Humidity, % | 95 | Measurements, mm | 16716742 mm | ss, kg | 0,3 |
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