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SPRINT-Nav Mini

All-in-one vehicle guidance and navigation system

Engineered for: AUV, ROV, Towfish, USV

Need reliable vehicle guidance and navigation but you're tight on space? SPRINT-Nav Mini fuses AHRS, DVL, INS and depth data into a single, lightweight instrument, giving you fast, precise and robust navigation, guidance and control information.


At a glance

215 mm tall by 149 mm in diameter; the industry’s smallest all-in-one hybrid acoustic-inertial subsea navigator

Hybrid DVL-INS synergies dramatically improve both robustness and performance compared with standalone instruments.

Fly higher - 500 kHz DVL maintains bottom lock at up to 200 m altitude

Replaces four separate instruments; AHRS, DVL, INS and pressure sensor - saving you cost, cabling and payload

Easy to integrate, simple to operate, web UI for configuration

Mini in size, big in performance

Want to find out more?

4,000 m rated version in titanium (left), SPRINT-Nav 300 m rated version in POM-C (right)

Mounting plate, choice of top or bottom mounting location

500 kHz DVL, 0.3/200 min/max altitude

11-pin Size-A CRE connectors x 2. Custom connectors on request

Benefits of SPRINT-Nav Mini for your operations

For energy

Low power and small, it's the ideal size for installing on all size ROVs as well as USVs undertaking data harvesting missions in shallow water and around offshore structures which often block GNSS signals.

For defence

It provides your towfish, diver swim-boards, swimmer delivery vehicles and low-logistic AUVs with continuous, high grade navigation to keep you mission on course, even in navigation denied environments.

For science

Because it's cheaper than the four separate sensors it replaces (AHRS, DVL, INS and pressure sensor), it's a cost-effective solution for your research platforms where budgets need to stretch as far as possible.

Overview

SPRINT-Nav Mini is the world’s smallest hybrid acoustic-inertial technology. An all-in-one subsea navigation instrument with performance beyond its size. It replaces the need for a separate AHRS, DVL, INS and depth sensors so there’s less cabling and fewer connectors to keep check of. But it’s not only simpler to mobilise, it’s also cheaper than those four sensors it replaces.

Measuring just 215 mm in height (only fractionally taller than some competing DVL-only instruments), 149 mm in diameter and weighing in at approximately 3.6 kg in air for the 300 m rated unit – or 7.1 kg for the 4000 m depth version – for something so small, SPRINT-Nav Mini packs a big punch for all your underwater ocean robot applications.

SPRINT-Nav Mini is powered by the same hybrid acoustic-inertial navigation algorithm you’ll find inside our established SPRINT-Nav family. This combines the strengths of all the sensors contained within to provide robust, precise and accurate outputs. It continues to work even in challenging environments and provides a continuous stream of positions, orientation, velocities, depth and altitude at up to 200 updates per second.

SPRINT-Nav Mini arrives pre-calibrated from the factory, meaning there is no need to manoeuvre your vehicle every time the unit is mobilised. SPRINT-Nav Mini does the thinking for you, all in a single plug-and-play unit. Turn it on, give it a latitude, and away you go.

However, despite its extremely small size, it’s still a true north seeking gyrocompass which won’t drift over time unlike MEMS-based systems. The output can be fed directly to your own (or a third party) user interface or vehicle control software. The simple Web User Interface makes setup and configuration painless. It could not be any simpler.

Options
Two depth ratings are available; a 300 m, and a 4000 m depth rated unit. There is also a side-connector option depth rated for 300 m and measuring only 183mm in height making it ideal for tighter spaces.

For observation-class, electric and work-class ROVs, SPRINT-Nav Mini Guidance provides orientation, velocity, depth and altitude required to support station-keeping and ROV DP applications.

Where conventional INS outputs are also required, SPRINT-Nav Mini Navigator is the option of choice outputting latitude and longitude in addition to all the guidance outputs at a user selected update rate.

Why invest

General

  • Ideally suited for subsea vehicle guidance, control and navigation

  • Size, weight and power optimised; perfect for all size vehicles

  • Powered by our class-leading SPRINT hybrid navigation engine

  • Gyrocompass simplicity with hybrid acoustic-inertial navigation Performance

  • Cheaper than the four separate sensors it replaces; AHRS, DVL, INS and pressure sensor

Performance

  • 300 m and 4,000 m depth rated options

  • Navigator variant provides 0.05% error for distance travelled

  • Heading accuracy 0.5° secant latitude (0.15° Navigator variant)

  • 0.1° Pitch/Roll accuracy

  • Better than 0.4 cm/s velocity precision (<2 m/s at 50 m altitude)

  • 0.3/200 m min/max altitude

  • 0.1% FS depth

  • Up to 200 Hz output rate

Design

  • 215 x 149 mm, 3.6 kg weight in air (300 m version), 7.1 kg (4000 m version)

  • Acetal Copolymer (300 m) or Titanium (4000 m) housing construction

  • Mounting plate, choice of top or bottom mounting location

  • 11-pin Size-A CRE connectors x 2. Custom connectors on request

  • Side-connector variant with 14-pin and 7-pin Size-A CRE connectors

  • User friendly Web UI makes it easy to integrate and simple to operate

Ownership

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

  • Warranty: 1 year return to Sonardyne service centre

  • ITAR Controlled: No

  • UK Export License: TBC

Resources

Feature SPRINT-Nav Mini – Guidance SPRINT-Nav Mini – Navigator
Performance
DVL Aided Typical Survey n/a 0.05%
Distance from Origin n/a 0.30%
Altitude Min/Max 0.3/200 m 0.3/200 m
USBL & DVL Aided Precision Improvement n/a Up to 5x better
Heading (Secant Latitude) 0.50° 0.15°
Roll and Pitch 0.10° 0.10°
Angular Rate Range ±450°/s ±450°/s
Velocity Precision (<2 m/s at 50 m Altitude) <0.4 cm/s <0.4 cm/s
Depth accuracy 0.1% FS 0.1% FS
Power
Power Requirements 24 V dc, 10 W nominal 24 V dc, 10 W nominal
Physical/Comms
Data Storage 32 GB internal memory 32 GB internal memory
Serial Ports/Protocol 3x RS232 3x RS232
Other Ports Ethernet, UDP/TCP, WebUI, 2 x trigger inputs (1PPS/DVL trigger) Ethernet, UDP/TCP, WebUI, 2 x trigger inputs (1PPS/DVL trigger)
Mechanical Construction 300 m POM-C POM-C
4,000 m Titanium Titanium
Dimensions (Diameter x Height) (incl. connectors and mounting ring) 300 m 149 x 215 mm 149 x 215 mm
4,000 m 149 x 215 mm 149 x 215 mm
Weight Air/Water 300 m 3.6/0.7 kg 3.6/0.7 kg
4,000 m 7.1/4.2 kg 7.1/4.2 kg
Environmental
Depth Rating 300/4,000 m 300/4,000 m
Operating Temperature -5 to 50°C -5 to 50°C
Storage Temperature -25 to 55°C -25 to 55°C

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Mini in size, big in performance