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Products System

SPRINT-Nav

Combined INS & DVL (300 /500 /700 / X)

Engineered for: AUV, ROV, USV

With INS, DVL and depth data in one tightly integrated unit, SPRINT-Nav is ready for any subsea navigation task. Deepwater ROVs and AUVs needing ultimate accuracy, not a problem. Shallow water USV operations for high altitude bottom lock, not a problem. It’s even pre-calibrated so you can get straight to work.


At a glance

Calibration free all-in-one subsea navigation instrument

INS, DVL, AHRS and depth

600 kHz and 400 kHz DVL options. Supports ADCP functionality

Small form factor; easy to install

4,000 and 6,000 m options

Four performance levels; 300, 500, 700 and new X

Saves time. Saves cost. Saves payload space

Want to find out more?

Measuring just 395 mm tall, SPRINT-Nav packs incredible performance into a very small form factor

Each Syrinx DVL puck has a full depth rated water block to prevent flooding if damaged

SPRINT-Nav X offers a level of performance orders of magnitude better than anything else on the market today

Pressure sensors requiring recalibration can be removed with the main unit remaining installed in the vehicle

Which SPRINT-Nav is right for your vehicle operations?

300

Supports dual ROV and Survey use and standalone ROV guidance. Also provides mid-water station keeping with vendor independent USBL aiding.

500/700

High performing survey-grade subsea INS proven to support a wide range of demanding applications including dynamic mobile mapping. Tightly integrated with Sonardyne acoustics.

X

SPRINT-Nav X is the highest-grade model in our SPRINT-Nav family designed for very specialist applications such as long endurance missions using XLUUVs.

Overview

SPRINT-Nav is an all-in-one subsea navigation instrument for underwater (ROV, AUV, SDV) and surface vehicles (USV). It combines our SPRINT INS, Syrinx DVL and high accuracy intelligent pressure sensor in a single housing that is one of the smallest combined inertial navigation instruments on the market.

SPRINT-Nav is available in four different performance levels; 300, 500, 700 and X, and two different depth ratings; 4,000 and 6,000 m. It offers two DVL frequencies; 600 kHz and a high-altitude 400 kHz option.

Inside SPRINT-Nav is an inertial motion unit (IMU), designed by us and built around carefully selected, highly robust and accurate Honeywell ring laser gyro (RLG) inertial sensors and Honeywell accelerometers. The INS is tightly coupled with a Syrinx DVL, from which the INS takes beam-level data, as well as integrating a high-performance pressure sensor. Tightly integrating raw sensor data from the IMU and DVL at a low-level like this means that higher levels of accuracy and reliability are achieved.

Careful design and strict control of all parts of the SPRINT-Nav is what enables SPRINT-Nav to provide unprecedented performance not rivalled by any other solution.

SPRINT-Nav’s dual algorithm capability is unique in the market and allows for simultaneous use from one instrument, e.g. AHRS plus DVL for ROV piloting, INS plus DVL for survey operations. SPRINT-Nav is calibration free. It also support ADCP functionality (upgrade option).

With power-pass-through, aiding sensors can be powered directly, reducing cabling cost and complexity. Sensor offsets are rigid and very accurately known, helping to reduce systematic errors in lever arm measurements. The pressure sensor module can be removed for calibration or repair without incurring downtime.

Each Syrinx transducer is fitted with a full depth rated water block to ensure the protection of the internal components. The transducers are individually replaceable at Sonardyne’s regional offices to keep repair costs and times to a minimum.

Export of SPRINT-Nav is simplified as compared to other separate DVL and INS units. For example, shipping from outside the USA does not require a re-export licence.

It’s also fast to initialise, with no need for calibration manoeuvres, before or during a mission. This is due to the fact it runs two algorithms where the INS can instantly initialise from the AHRS. However, fast initialisation is also made possible due to the RLG’s very deterministic characteristic, compared with other types of gyros like fibre optic gyros (FOGs).

Our topside software, whether the dedicated SPRINT application or Fusion 2 combined INS and LBL package, is also very user-friendly and a great tool for monitoring system health and trouble-shooting potential issues during mobilisation and operation.

SPRINT-Nav X
The latest addition to the SPRINT-Nav family, offers a level of performance orders of magnitude better than anything else commercially available today – we’re talking calibration-free out-of-the-box navigational accuracy of <0.01% of total distance travelled or better than 0.04% of distance from origin. Achieving this level of navigation accuracy makes it possible for long-endurance AUVs to be suitable replacements for the large, crewed surface vessels that are utilised today, to conduct operations within energy, defence and science.

Echo Observer for Syrinx (EOS)
EOS is a software application SPRINT-Nav systems which allows Acoustic Doppler Current Profiling (ADCP) data to be viewed, quality controlled, logged, and then exported. This standalone application is compatible with Windows 7 or 10 and requires only modest processing resources.

EOS provides an intuitive interface to the Syrinx component of SPRINT-Nav, allowing the device to be configured over Serial port or Ethernet with a quick setup procedure for ADCP measurements. Users can immediately view the profile data and make any necessary adjustments before committing to a long-term deployment.

Once initial data inspection has been completed, EOS provides the link to the onward data processing chain: Industry-standard PD0 data can be exported as comma-separated variable (CSV) files, ideal for importing into Excel or Matlab for analysis and post-processing. The exported PD0 data can be tailored to match your analysis needs, such as specific portions of the water column, or a favoured frame of reference.

Specific sections of the PD0 data can be omitted in CSV export if they are not relevant to your analysis, reducing on file size and therefore processing time. Echo Observer for Syrinx is included with the ADCP functionality upgrade for both Syrinx and SPRINT-Nav.

Why invest

Design

  • 240 x 395 mm, 13.1 kg weight in water (4,000 m version) 240 x 405 mm, 17.2 kg (6,000 m version)

  • Titanium housing construction

  • Provides concurrent AHRS and INS capability for dual use

  • Onboard data storage and battery backup to ride through brown outs

  • Individually water blocked and replaceable DVL transducers

  • In field remote performance upgrades: Yes

Performance (SPRINT-Nav 500)

  • Heading accuracy 0.04° (secant latitude)

  • 0.01° Pitch/Roll accuracy

  • 0.02% Typical survey accuracy

  • Station keeping <1m over 24 hours

  • Provides bottom lock up to 230 m

Typical applications

  • ROV and towfish positioning

  • Hydrographic and multibeam survey

  • Offshore construction; trenching, as-laid, OOS, touchdown monitoring, structure placement

  • ROV DP including mid-water station keeping

  • USV navigation

  • Long edurance XLUUV guidance aiding

Ownership

  • What’s in the box: SPRINT-Nav, mounting plate, Fusion 2 software, test lead and cable tail

  • Warranty: 1 year return to Sonardyne service centre

  • ITAR Controlled: Yes (shipping from outside the USA does not require a re-export licence)

  • UK Export License: Yes

Resources

Performance SPRINT-Nav 300 SPRINT-Nav 500 SPRINT-Nav 700 SPRINT-Nav X
DVL Aided Typical Survey 0.04% 0.02% 0.01% 0.01%
Distance from Origin 0.12% 0.07% 0.05% Get in touch
High Altitude Option (HA) 0.12% 0.08% 0.06% Get in touch
Unaided 1.2 m in 60 s 0.8 m in 60 s 0.5 m in 60 s Get in touch
Altitude Min/Max Standard 0.4/175 m 0.4/175 m 0.4/175 m 0.4/175 m
High Altitude Option (HA) 0.4/230 m 0.4/230 m 0.4/230 m 0.4/230 m
USBL and DVL Aided (Precision Improvement) Up to 7x better Up to 10x better Up to 13x better Up to 13x better
Station Keeping <1 m over 24 hours <1 m over 24 hours <1 m over 24 hours <1 m over 24 hours
LBL/DVL Aided 3 cm confined area, 20 cm wide area (dynamic) 3 cm confined area, 20 cm wide area (dynamic) 3 cm confined area, 20 cm wide area (dynamic) 3 cm confined area, 20 cm wide area (dynamic)
INS/AHRS Heading (Secant Latitude) INS 0.05º 0.04º 0.02º 0.01°
AHRS 0.20º 0.10º 0.08º 0.08°
INS/AHRS Roll and Pitch 0.01º 0.01º 0.01º 0.01º
Pressure Sensor 0.01% FS removable module 0.01% FS removable module 0.01% FS removable module 0.01% FS removable module
ADCP Profiling Range Standard 0.4–80 m 0.4–80 m 0.4–80 m 0.4–80 m
Profiling Range HA 0.4–120 m 0.4–120 m 0.4–120 m 0.4–120 m
Vel. Range & RMS (Along Beam) Up to ±11.2 m/s ±0.4% of measured value Up to ±11.2 m/s ±0.4% of measured value Up to ±11.2 m/s ±0.4% of measured value Up to ±11.2 m/s ±0.4% of measured value
Maximum Number of Cells 255 255 255 255
Maximum Ping Rate 4 Hz (ADCP) or 2.5 Hz (DVL+ADCP) 4 Hz (ADCP) or 2.5 Hz (DVL+ADCP) 4 Hz (ADCP) or 2.5 Hz (DVL+ADCP) 4 Hz (ADCP) or 2.5 Hz (DVL+ADCP)
Power
Power Requirements 20–50 V dc, 15 W nominal (35 W maximum) 20–50 V dc, 15 W nominal (35 W maximum) 20–50 V dc, 15 W nominal (35 W maximum) 20–50 V dc, 15 W nominal (35 W maximum)
Internal Battery Backup Li-ion/5 minutes Li-ion/5 minutes Li-ion/5 minutes Li-ion/5 minutes
Physical/Comms
Data Storage 8 GB internal memory 8 GB internal memory 8 GB internal memory 8 GB internal memory
Serial Ports/Protocol 4x RS232 or RS485 4x RS232 or RS485 4x RS232 or RS485 4x RS232 or RS485
Other Ports Ethernet, 4x Triggers Ethernet, 4x Triggers Ethernet, 4x Triggers Ethernet, 4x Triggers
Mechanical
Mechanical Construction Titanium Titanium Titanium Titanium
Dimensions (Diameter x Height) (incl. connectors and mounting ring) 4,000 m 240 x 395 mm 240 x 395 mm 240 x 395 mm
6,000 m 240 x 405 mm 240 x 405 mm 240 x 405 mm 240 x 395 mm
Weight Air/Water 4,000 m 23.9/13.1 kg 23.9/13.1 kg 23.9/13.1 kg 23.9/13.1 kg
6,000 m 28.1/17.2 kg 28.1/17.2 kg 28.1/17.2 kg 28.1/17.2 kg
Environmental
Depth Rating 4,000/6,000 m 4,000/6,000 m 4,000/6,000 m 4,000/6,000 m
Operating Temperature -5 to 50°C -5 to 50°C -5 to 50°C -5 to 50°C
Storage Temperature -25 to 55°C -25 to 55°C -25 to 55°C -25 to 55°C

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Saves time. Saves cost. Saves payload space