Simrad SP70
2
850--164186 A
1.2 System overview
Main units
The Simrad SP70 sonar consists of the following units:
• Wheelhouse units:
- Display Monitor
- Operating Panel
- Processor Unit
-Loudspeaker
• Sonar room units:
- Transceiver Unit
-HullUnit
→ See figure 1 for the SP70 system diagram.
The Display Monitor is normally a 18” or 20” high-resolution
colour LCD (Liquid Crystal Display). In addition to the sonar
picture, the monitor can also display the user menu for the
interactive operation. In order to ease the situation
comprehension, certain colours have been chosen to better the
distinction between the various elements in the scene.
The Operating Panel contains all necessary control functions for
operating the sonar. The controls are arranged in function groups,
which gives a clear and easy operation. Note that all sonar
operation also may be made from the roller ball, or from an
optional remote standard mouse.
The Processor unit contains a ruggedized computer with
interface for the auxiliary equipment (log, gyro, GPS, echo
sounder, trawl systems, purse seine systems etc.). The processor
unit runs the Microsoft Windows 2000 operating system,
modified by Simrad to suit the SP70 sonar requirements. An
Ethernet link is used for the communication with the transceiver
unit in the sonar room.
The Loudspeaker reproduces the audio of the echoes for the
selected audio channel.
The Transceiver Unit is located in the sonar room, close to the
Hull Unit. An Ethernet link is used for communication with the
processor unit in the wheelhouse. The transceiver performs the
signal processing and the digital beamforming of the 240
transmitters and 240 receiver channels, which are located on eight
equal transceiver boards.
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