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Main ❯ Navigation & tracking systems ❯ Zima-B: Device specification
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Zima-B - Zima USBL direction-finding station Device specification |
KEY FEATURES
- Extremely small size and weight
- Communication range up to 30001 m
- Highly reliable digital underwater acoustic communication resistant to multipath propagation
- Code division multiple access - up to 23 isolating addresses
- Low power consumption (Rx/Tx) 0.33/25 W
- Patented* simultaneous navigation technology
- Built-in pressure/temperature sensor
- Patented** monoblock design
DESCRIPTION
Zima-B - direction-finding station of the ultra-short baseline system Zima USBL.
The device uses a fixed-length signal with code division to determine the direction and distance, as well as to transmit remote control commands to the responder-beacons Zima-R and to receive telemetry data from them.
When an external GNSS receiver and a compass are used, the device can determine the absolute coordinates of the responder-beacons. Sequential transmission of up to 32 control commands for 23 responder-beacons is provided.
The ideal solution for determining the direction and distance to ROVs, AUVs and divers.
Extremely small size, low power consumption and ease of use make the direction-finding system Zima USBL an ideal solution for working with autonomous and remotely controlled vehicles, as well as determining the relative position of divers.
* Patent RU156897U1.
** Patent RU2659299C1.
TECHNICAL SPECIFICATIONS
| PARAMETER | VALUE |
|---|---|
| DIMENSIONS (Ø x h) | 64 x 128 mm |
| WEIGHT (dry)2 | 0.44 kg |
| MAXIMUM DEPTH | 40 m |
| NOMINAL DEPTH ACCURACY | 0.1 m |
| MAXIMUM ACOUSTIC COMMUNICATION RANGE1 | 3000 m |
| NOMINAL HORIZONTAL ANGLE OF ARRIVAL ACCURACY3 | 1° |
| MAXIMUM DEVICE TILT RELATIVE TO THE VERTICAL COMPENSATED BY THE BUILT-IN INCLINOMETER (ROLL/PITCH) | +/- 30° |
| OPERATING CONE (RELATIVE TO THE HORIZONTAL)3 | +/-30° |
| BUILT-IN TEMPERATURE SENSOR ACCURACY | 0.1°C |
| BIT ERROR RATE | 10-6 |
| SNR2 | -3 dB |
| MAXIMUM RELATIVE VELOCITY | +/- 2 m/s |
| STARTUP TIME | 100 ms |
| OPERATING TEMPERATURE RANGE | -5 .. 50 °C |
| BATTERY LIFE4 WHEN SUPPLIED FROM BAT&LINK BOX | 8 h |
| INTERFACE | USB (COM) 9600 bit/s |
| COMMUNICATION PROTOCOL | NMEA 0183 PZMA |
| CABLE LENGTH5 | 10 m |
| MULTIPLE ACCESS SCHEME (COMMANDS/SUBSCRIBERS) | 32/23 |
1 A parameter that determines the maximum range at which a signal can be received, based on electro-acoustic parameters of the transmitter and receiver, spatial decrease in the intensity of sound energy, attenuation in the medium and the acoustic noise level.
2 Excluding the weight of the converter and cable.
3 The value was obtained in a laboratory static experiment, without taking into account the multipath propagation effect.
4 With the station operating at 1 request per 3 seconds.
5 Including the interface converter and extension cable up to the Bat&Link Box device. Optionally, the length can be increased up to 20 m.