Shallow Water Tracking - Scout USBL

Scout USBL Underwater Tracking

SHALLOW WATER TRACKING – SCOUT USBL

Sonardyne’s Scout USBL is a portable vessel based acoustic positioning system designed to track divers ROVs and AUVs and towfish in waters up to 1,000 metres. The system calculates the position of a subsea transponder by measuring the range (distance) and bearing (heading) from a vessel mounted transceiver to a small acoustic transponder fitted to the asset; a technique known as Ultra-Short BaseLine (USBL) positioning that offers high accuracy performance combined with efficient subsea tracking operations.

 

SCOUT PRODUCT FAMILY

Three versions of Scout USBL are available: Scout, Scout Plus and Scout Pro. Scout and Scout Plus are systems designed for general tracking applications at ranges up to 500 metres. Scout can track one surface vessel and four subsea transponders, whilst Scout Plus can track six transponders and incorporates a Responder mode. This enables the system to calculate the responder’s position at a much higher update rate, ideal for fast moving vehicles such as AUVs, ROVs and towfish.

Scout Pro is designed to support complex subsea positioning applications through its fully featured software. It provides greater accuracy, tracking for up to 10 subsea transponders and a 1,000 metre range. The advanced topside control hardware supplied with Scout Pro systems enables experienced users to operate it using Sonardyne’s Wideband digital acoustic signal technology. The benefits of using Wideband include greater immunity to noise interference and a tenfold improvement in measurement repeatability.

 

Scout USBL Transceiver

The Scout transceiver is a portable, vessel-mounted acoustic transmitter and receiver that interrogates subsea transponders attached to assets being tracked (AUVs, ROVs, divers, towfish) and determines their range, bearing and declination to determine their position from the vessel.

 

Surface Command Unit

The Scout Surface Command Unit (SCU) is a portable command unit with integrated PC, sensor interface and rechargeable battery pack incorporated in a splash-proof case. It supplies power and communications to the Scout transceiver and can be operated on almost any type of boat.

 

Coastal Transponder

The Scout Coastal Transponder has been designed for low cost applications. The small size and lightweight design of the transponder enables normal or Emergency relocation of critical points of interest, accurate underwater distance measurement and small submersible vehicle/diver tracking.

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Feature Type 8024
Operating Frequency HF (35–55kHz)
Operating Range 500 metres
Acoustic Coverage ±90° below transceiver
Accuracy ±2.75% of Slant Range (With integrated heading/pitch/roll sensor)
±0.5% of Slant Range (With external heading/pitch/roll sensors)
Tracking Simultaneous tracking of multiple subsea targets
Integrated Sensors Magnetic heading (0.5deg) and Pitch/Roll (0.25deg)
Deployment Method Through-hull or Over-the-side (Aluminium Bronze)
Dimensions (LxDia) 489mm (19.25”) x 160 mm (5.7”)
Power 48VDC
Communications RS485
Weight in Air 18.9kg
Weight in Water 10kg
Mechanical Construction Aluminium Bronze, Powder Coated
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Feature Type 8039
Processor Pentium
Operating System Windows XP Professional
RAM 512Mb
Hard Disk 40Gb
Ports (Front Panel) 4 x Serial, 1 x USB 2.0
External Inputs Transceiver, Responder Trigger, GPS Antenna (Optional)
Battery Internal Li-Ion (UN Transport Approved)
Typical Battery Life 1-2 Hours
Power Supply 12-16V DC
Display Panel 12.1" TFT Touch Screen, 1024 x 768
IP Rating IP65
Dimensions (LxWxH) 444.5mm (17.5") x 305mm (12") x 178mm (7")
Weight 10kg
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Feature Type 7815-000-07
Depth Rating 500 metres
Operating Frequency Range HF (35–50 kHz)
Source Level 184-187 dB
Receive Sensitivity 105-115 dB re 1µPa @1m
Number of Unique Addresses 3609 (Field Programmable)
Switch On Continuously operating (No On/Off switch)
Battery Life Alkaline: 18 months
Mechanical Construction Plastic and Aluminium Alloy (Anodised)
Dimensions (LxDia) 442 mm (17.4”) x 63 mm (2.4”)
Weight in Air 1.1 kg
Weight in Water 0.2 kg
Deck Unit Type 7967-000-02 (Includes transducer and 10 metres of cable)