SEAWATCH Mini II Buoy

SEAWATCH Mini II Buoy
SEAWATCH Mini II Buoy
The collection and transfer of high quality directional wave and current measurements in coastal environments
requires a robust and economical solution.
The SEAWATCH Mini II buoy is a robust, economical and
flexible buoy that measures a range of oceanographic
parameters for harbours and coastal areas.
Features
• Extremely robust construction
• Solar charging allowing long-term unattended operation
• Designed for wave measurements
• Choice of GENI datalogger or WAVESENSE integrated
SEAWATCH Mini II buoy
datalogger and directional wave sensor
• Various two-way communication options
Applications
• Harbour and coastal monitoring
• Coastal engineering
• Offshore design and operations
• Scientific studies
• Wave energy studies
• Maritime traffic control
SEAWATCH Mini II buoy is configured before deployment
The Hull
The hull of the SEAWATCH Mini II buoy is made from foamfilled polyethylene. The choice of material ensures no risk of
corrosion and sulphation as well as excellent resistance to
impacts. The buoy is practically unsinkable.
Below the water surface it is spherically shaped to ensure optimal
wave measuring capability. Above the surface the robust marine
grade solar panels have been fitted in recesses for security. The
wave sensor is a complete solid-state design with no moving
parts.
SEAWATCH Mini II buoy is used for coastal applications
SEAWATCH Mini II Buoy
Power Supply
Technical Specifications
Maintenance free solar panels and sealed lead-acid batteries
General
enable long-term unattended operation.
Material
The accumulated charge and load current are transmitted to
shore for control of the power consumption. For low sun radiation
conditions, lithium batteries can be supplied.
Flash light
Polyethylene
LED based, 3-4 nautical miles range
IALA recommended characteristic
Positioning
Standalone GPS Receiver
Buoy Dimensions
Data Communication
Weight (approx)
320 kg
Height (hull)
1.18 m
Overall height
1.8 m
The SEAWATCH Mini II buoy uses GSM mobile phone
Diameter
1.25 m
or UHF/VHF radio for short range communications. For
Net buoyancy
410 kg
long distance data transfer, the high capacity and reliable
Power Supply
Inmarsat-C or Iridium satellite are used.
The buoy’s position can also be monitored by means of one-way
GPS satellite position tracking.
Solar panels
60 W (10W x 6)
Solar panel angle
63° (to horizontal)
Lead-acid battery bank
Antenna for GSM, GPS and Iridium are hidden. Various sensor
248 Ah
Optional lithium batteries
1088 Ah
alternatives exist; please contact us with your requirements.
Limitations exist in the number of sensors, their size and power
Processing
consumption.
32-bit microprocessor
512MB flash memory, approx 10 years of raw data
Real-time operating system (Linux)
Low power consumption
Directional Wave Measurements
Large number of serial and analogue inputs
Flexible data acquisition software
The buoy is ideal for directional wave measurements. When used
for directional wave measurements, the integrated wave sensor
Data Communication
and datalogger means one less power consuming processor,
Short Range
GSM/GPRS
decreased system complexity and hence increased system
reliability.
Long Range
Heave, Surge, Sway
Direction
Wave Period
Range
± 25m (adjust)
0 - 360°
2 - 30 sec
Inmarsat-C, Iridium (two way)
Sensor Options
Directional Wave Data Sensor
Parameter
UHF/VHF radio (two-way)
Accuracy
< 10 cm
0.3°
Current velocity
Current direction
Temperature and conductivity/salinity
< 2% of value
Fugro GEOS Ltd, Wallingford, UK
T: +44 1491 820 500 E: [email protected]
Fugro GEOS Pte Ltd, Singapore
T: +65 6885 4100 E: [email protected]
Fugro GEOS Inc, Houston, USA
T: +1 713 346 3600 E: [email protected]
Fugro GEOS, Structural Monitoring, Glasgow, UK
T: +44 141 774 8828 E: [email protected]
Fugro GEOS, Abu Dhabi, UAE
T: +971 2 554 5101 E: [email protected]
Fugro Mexico, Campeche, Mexico
T: +52 938 381 1970 E: [email protected]
Fugro OCEANOR AS, Sandnes, Norway
T: +47 5163 4330 E: [email protected]
Fugro GEOS, Perth, Australia
T: +61 8 6477 4400 E: [email protected]
Fugro Brasil, Rio de Janeiro, Brazil
T: +22-33217901 E: [email protected]
Fugro OCEANOR AS, Trondheim, Norway
T: +47 7354 5200 E: tron[email protected]
Fugro GEOS Sdn Bhd, KL, Malaysia
T: +60 3 2164 6210 E: [email protected]
More information available at WWW.OCEANOR.COM
SW20 SEAWATCH Mini II Buoy © Fugro 2010
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