Precision depth monitoring for offshore operations

The Riser Profiling system can be used as a standalone, integrated within a Marksman LUSBL acoustic position reference system, or with a third-party integrated monitoring system.

6th Generation (6G®) DPTi or SMART transponders wirelessly mounted along the length of the riser, provide highly accurate data. These are clamped onto the riser during deployment or installed via ROV subsea. Up to ten transponders are mounted on a riser. Each transponder is fitted with the following sensors:

• High-resolution dual axis inclinometer
• Water temperature
• Pressure and depth
• Optional single point Doppler current meter (speed, direction)

The gathered data is transmitted wirelessly from the transponders using our Wideband 2 acoustic signals to a transceiver on the vessel, eliminating the need for expensive umbilical cables to fitted up each riser.

At a glance

• Designed for monitoring your riser’s integrity
• Helps prevent critical damage during operations
• Removes need for expensive cables
• 6G hardware and Wideband 2 acoustic delivers robust performance during operations
• User configurable update rates

Advanced monitoring for subsea success

Topside software makes changing monitoring regimes easy. You can even set an alarm to activate when the calculated riser angle exceeds a predefined limit.

At the update rate you choose, inclination, current speed and direction, pressure, temperature measurements are requested from each transponder. All data is processed, logged and displayed graphically and numerically on the topside computer software for your instant analysis. When SMART transponders are used, the data is processed within the transponder and wirelessly transmitted to the vessel’s transceiver.

Get the SPRINT advantage

SPRINT gives you:

• Robust performance in challenging subsea conditions
• High-precision outputs for enhanced vehicle control
• Instantaneous start-up without lengthy alignment periods
• Seamless integration with your existing equipment

SPRINT optimises acoustic aiding data from USBL, LBL, Doppler Velocity Log (DVL) and pressure sensors, improving position accuracy, precision, reliability, and integrity. It extends the operating limits of your vessel’s USBL and enhances LBL efficiency by enabling sparse seabed transponder arrays. All while reducing operational time and vessel costs.

Choose your SPRINT

• SPRINT 300: Perfect for dual ROV and survey use, standalone ROV guidance, and mid-water station keeping. It’s the most cost-effective subsea INS available, with less than 0.1° Sec Lat Heading accuracy.
• SPRINT 500: Ideal for your demanding multibeam survey operations. Supports tightly integrated sparse LBL range aiding from Sonardyne 6G transponders, with automatic pressure and swell compensation.
• SPRINT 700: Our highest-performance INS system, designed for your most challenging subsea survey tasks. Supports mobile laser mapping and acoustic inertial metrology with tight integration to Sonardyne acoustics.

The technology

Inertial navigation is inherently self-contained and robust with very good short term accuracy, but it can drift over time. Therefore, the SPRINT INS is supported by complementary acoustic positioning to provide long term accuracy and robustness. This significantly reduces operational delays during periods of challenging subsea acoustic conditions such as aeration and noise. The precision and update rate of the output allows greater subsea vehicle control and makes SPRINT suitable for ROV station keeping.

SPRINT shares a hardware platform with our Lodestar AHRS and runs both AHRS and INS algorithms concurrently. This allows instant INS start or restart upon receiving a position update, eliminating the lengthy ‘alignment’ period common in other systems. The system monitors AHRS and INS orientation separately to assess its health. All calculations are performed internally, protecting against communication issues. The system maintains a 15-day backup of navigation and raw data on an onboard SD card, while topside software concurrently logs all data, ensuring data integrity.

DVL and AHRS/INS

Our Syrinx DVL provides tight beam-level aiding to SPRINT, giving superior positioning performance even with partial beam availability. Standalone 3rd generation SPRINT and Syrinx DVL can be joined together for pre-calibrated, interchangeable use, or combined into the compact SPRINT-Nav unit. This integrated solution, optionally including an internal pressure sensor, is suitable for various ROV and survey tasks. The combined unit features depth-rated water blocks for each transducer to protect the internal components and when supplied together typically doesn’t require re-export licensing, simplifying your shipping logistics.

Designed and manufactured entirely in the UK, Syrinx is a class leading DVL for surface and subsea vehicles, available in two frequencies: 600 kHz or 400 kHz for higher altitude tracking up to 230 m. Syrinx variants combine high resolution and high altitude tracking, in single, easy to install navigation instruments. Its adaptive bottom lock technology provides consistency and reliability over challenging and changing topography, working at an altitude higher than 85% of the world’s subsea infrastructure. This reduces the amount of time a vehicle must dive on free inertial.

If your mission requires water profiling, Syrinx’s highly capable ADCP mode enables both navigation and profiling without the need for separate instrument, saving you cost and payload.

When tightly integrated with Sonardyne’s SPRINT INS, unmatched DVL-aided navigation can be achieved. This allows for enhanced performance through optimisation of beam-level data passed between Syrinx and SPRINT to aid velocity prediction and outlier rejection, with positioning able to continue even if one or two DVL beams are unavailable. For the ultimate integration Syrinx and SPRINT are also available as a single combined unit with integral pressure sensor. SPRINT-Nav is one of the smallest inertial DVL instruments available on the market suitable for almost any ROV and survey task.

Why Syrinx?

• Unmatched Versatility: Use Syrinx as a DVL, ADCP, or both simultaneously. You decide how to harness its power.
• Deep-Water Performance: Maintain solid bottom lock up to 230 m, with 4,000 m depth rating as standard.
• Adaptive Technology: Our smart bottom lock ensures reliable navigation across varied seabed types.
• Dual-Frequency Options: Choose between 400 kHz for extended range or 600 kHz for high resolution.
• Seamless Integration: Syrinx works harmoniously with our SPRINT INS for unparalleled navigation accuracy.
• Efficiency: Combine navigation and water profiling in one instrument, saving you space and resources.
• Reliability: Individually replaceable transducers to minimise downtime.
• Adaptability: Available in 4,000 m, 6,000 m and OEM versions to suit your specific needs.
• User-Friendly: Web-based System Manager for easy configuration and control.
• Compatibility: Fits existing mounting arrangements and supports various data formats for smooth integration.

Dive deep, control smart

Syrinx runs an embedded system manager using a web browser, eliminating the need to install dedicated PC software. This allows configuration and testing of Syrinx prior to deployment, control during subsea operations and visualisation of the navigation data.

The hardware and vehicle interfacing are easy to install, set up and use. It’s compatible with DVL/ADCP mounting arrangements from other vendors so you shouldn’t need to modify your subsea vehicles to upgrade to Syrinx. PD0, PD3, PD4, PD6, PD13 telegrams are supported for integration to third party navigation systems.

A 4,000 m rated titanium housing is supplied as standard to meet the requirements of work-class ROVs. 6,000 m and OEM (no housing) versions are also available.

Syrinx’s transducers have been designed, built and tested in-house to provide maximum performance, and can be individually replaced, reducing ownership costs and repair time. The entire array is water blocked meaning that should damage occur to the transducer array, the unit’s electronics are isolated from water ingress.

Echo Observer for Syrinx (EOS)

EOS is a software application for Syrinx and SPRINT-Nav systems which allows 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 Syrinx, allowing the device to be configured over Serial port or Ethernet with a quick setup procedure for ADCP measurements. You 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 file size and therefore processing time. Echo Observer for Syrinx is included with the ADCP functionality upgrade for both Syrinx and SPRINT-Nav.

Experience the Syrinx DVL advantage

Whether you’re navigating an AUV through complex underwater terrain or precisely positioning an ROV for critical operations, Syrinx provides the accuracy and reliability you need. Our adaptive technology keeps you on track over challenging topography, reducing reliance on inertial navigation.

Ready to transform your underwater operations? Let’s collaborate to integrate Syrinx into your systems and unlock new possibilities in subsea exploration and work. Connect with our team today!

Navigate your marine environment with the confidence only SPRINT-Nav can provide.

Pinpoint location precision. Enhance your operations by adding valuable location detail enabling you to identify exactly where your data is drawn from or to pinpoint the location of assets, obstacles and pipelines.

Guide, control and navigate your USVs, ROVs and AUVs faster, safely and more efficiently with SPRINT-Nav. Operate your vehicles and vessels with the confidence of knowing exactly where they are and what they’re doing.

No calibration needed. Straight out of the box SPRINT-Nav is ready to go, saving you precious time on your operations.

Reduced in size – but not in performance, SPRINT-Nav Mini is the industry’s smallest all-in-one hybrid acoustic-inertial subsea navigator. It provides the perfect instrument for you to control your smaller inspection class ROVs and small to medium sized USVs.

Navigating – to hold station, SPRINT-Nav DP provides a reliable dynamic positioning reference in shallow water for your surface vessel to remain in one place without the need for a GNSS signal.

Engineered for all autonomous vehicles no matter what size or purpose, there is a SPRINT-Nav for your operations.

Why should you invest?

By choosing SPRINT-Nav you are choosing an all-in-one acoustic-inertial navigation sensor, replacing the need for a separate DVL, pressure sensor and INS/AHRS. Saving you the time, cost, cabling and integration challenges associated with using different sensors from different vendors.

At a glance

• Unique to Sonardyne
• Performance levels to suit your operations
• Tightly integrates raw acoustic, Doppler and inertial data
• Titanium housed for deep ROV missions
• Outputs altitude, depth, orientation and velocity
• Configure and control using a Web UI

Overview

Its high power output and Wideband 3 signal processing offers improved operating range and acoustic performance in challenging conditions such as when deployed from noisy vessels or in multi-path environments.

The internal Lithium-ion rechargeable battery pack minimises the supply current for long dunker cables. It also enables relocation of the dunker if the cable is cut.

The robust AGP connector on the Dunker 6+ is identical to the ROVNav 6+ and HPT USBL for compatibility and to reduce spares.

At a glance

• Perfect for commanding LBL transponders
• Use it to recover data from Fetch and AMTs
• Capability to operate as topside for RT 6 acoustic releases
• Deploy it over-the-side of your vessel
• Rugged mechanics and connectors
• Shock mounted internal electronics

Dunker 6+ LBL and telemetry transceiver is fully compatible with our modem and sensor logging instruments such as AMT and Fetch , allowing it to be used to retrieve data or configure logging regimes. It can also be used to release the RT 6 range of acoustic releases.

The Dunker 6+ system consists of 100 m of cable on a stainless steel cable drum with brake and locking mechanism. The 10 m deck cable between the 48 V Surface Interface Unit (SIU) and the cable drum allows the drum to be conveniently located. The connection to the cable drum is via an easily replaceable 8-way SubConn.

Optionally, an RT 6 topside kit with 30 m of cable is available in a carrying case without a cable drum.

Overview

The ESH is the network interface between the in-water acoustic instrument, GPS and the PC that runs the positioning software.

In addition to accurately time-stamping incoming data from external devices such as gyro, VRU and GPS it provides power and communications for acoustic transceivers.

The ESH includes a time source that can be linked to an internal or external GPS PPS input, allowing the Ranger 2 system to accurately time-stamp incoming data from external devices such as gyro, VRU and GNSS to UTC.

Wi-Fi connectivity allows connection to a PC using a Wi-Fi adapter.

At a glance

• Topside control unit for Mini-Ranger 2 USBL installations
• Provides power and comms to HPT 2000/3000 transceiver
• Integral GNSS with SBAS
• 4 serial ports RS232
• Wi-Fi connectivity

Overview

HPT 2000 offers significant advantages for survey operations in coastal and near shore regions where simultaneous positioning of transponders attached to transition zone/ocean bottom seismic cables at high elevation tracking is required in low noise environments.

The advanced multi-element processing enables transponders to be positioned more precisely, more quickly and more robustly due to improvements in signal processing algorithms. When used as part of a complete Mini-Ranger 2 USBL system, heading and inertial navigation sensor, class leading performance is achieved.

At a glance

• Use it with Mini-Ranger 2 USBL
• Optimised for high elevation tracking in shallow water
• Easy to deploy on temporary over-the-side set up
• Ethernet comms for fast position updates
• Excellent corrosion resistance

The integral MTi-30 Xsens sensor provides pitch, roll and heading data that automatically compensates for the dynamic motion of the vessel, removing the need for an external sensor and pre-use calibration.

Manufactured in Aluminium Bronze, HPT 2000 is intended to be fitted temporarily or permanently to a vessel’s through-hull or over-the-side pole.

The full hemispherical coverage optimises performance in shallow water environments boosting transmissions and receive sensitivity in the horizontal axis.

Ethernet connectivity enables the system to function over existing ship network wiring for rapid installation.

Overview

When it comes to USBL and LUSBL transceivers, one model does not fit all situations and vessels. For Ranger 2 and Marksman installations, our High Performance Transceiver (HPT) is available two primary configurations.

HPT 5000
HPT 5000 offers full hemispherical acoustic coverage so it’s a popular choice for tracking multiple targets  (ROVs, AUVs, towfish, seafloor sensors) over a wide range of depths and elevations. The unit is also suitable for dynamic positioning reference on survey, research and offshore support vessels.

HPT 7000
HPT 7000 is engineered for ultra-deepwater operations, tracking targets far below (rather than to the side) of a vessel, and also high vessel noise operating environments, as those typically encountered on DP drilling and construction where aeration from thrusters is liable to cause signal interference.

Both models of transceiver fully support 6G LBL operations using Fusion 2 LBL software. They are also highly capable acoustic communications modems, able to interrogate, command and recover data payloads from deployed Sonardyne instruments including AMTs and Fetch. Supporting telemetry rates of up to 9,000 bps minimises the time a vessel has to wait on location to recover data, as well as supporting LBL operations.

HPT 5000/7000s are also available in Gyro USBL configurations offering calibration-free installation and use.

At a glance

• Use with Ranger 2 USBL and Marksman LUSBL systems
• Can also be used to communicate and harvest data from Sonardyne sensors
• Hemispherical (HPT 5000) or directional (HPT 7000) arrays to suit your vessel and application
• Can be deployed other-the-side, through-tube or through-hull
• Suitable for new-build vessels or USBL/LUBL upgrade for your existing vessel

All HPTs are built on our 6G technology platform with multi-element processing to enable transponders to be positioned more precisely, more quickly and more robustly due to improvements in signal processing algorithms and array design.

Functionality such as ‘Discovery Mode’ enables vessels equipped with Ranger 2 and Marksman to enter an offshore area and automatically detect previously deployed transponders (including their configured address and channel), making simultaneous operations using shared seabed arrays possible.

Manufactured in aluminium-bronze, HPTs are intended to be fitted temporarily or permanently to a vessel’s through-hull or over-the-side pole. HPT 5000s (including Gyro USBL 5000s) have also been fitted to large USVs for uncrewed missions controlled from over-the-horizon.

For specialist applications, inverted USBL, LMF frequency and extreme depth range HPT transceivers are also available. Please get in contact to discuss your requirements.

Overview

Using a superfast processor to handle intensive workloads, Marine Computer is designed and configured to provide you with the best possible experience when using our suite of navigation, positioning and imaging software products, leaving you to concentrate on the job in hand.

However, you don’t have to be using Sonardyne software to use one. If you’re in the market for a robust and easily configured computer to run third-party software applications onboard your ship, survey boat or unmanned craft, Marine Computer is the perfect choice.

That’s because it’s certified to EN60945 and DNVGL-CG-0339 standards which means it meets regulatory requirements to be used on ships’ bridges and is able to withstand harsh operating environments and where constant high temperatures are present.

At a glance

• Choice of desktop or 2U rack mount configurations
• Fanless and temperature tolerant design withstands harsh marine operating environments
• Certified to EN 60945 and DNVGL-CG-0339 – use it on your bridge
• Intel 8th generation CPU runs intensive applications with ease
• Desk, console and rack mounting options
• Wide operating temperature range

Fanless computers like the Marine Computer are perfect for use in dirty or dusty marine environments where actively cooled systems could quickly clog up, overheat and fail. Inside is an Intel 8th generation processor and 512 GB industrial grade solid state disk. SSDs have no moving parts so are faster and more reliable than traditional hard disk drives. Temperature tolerant components contribute to its impressive wide operating temperature range.

All this makes the Marine Computer an extremely versatile and reliable tool in virtually any marine installation condition: desk mounted, in a small survey boat; within a ship’s bridge console; or, when supplied with a custom 2U chassis, mounted in a server room rack.

Overview

NSH is a 2U high rack-mounted unit that is the interface between your in-water deployed transponders, vessel-mounted transceiver and Marine Computer which runs Ranger 2 USBL or Marksman LUSBL software applications.

In addition to accurately time-stamping incoming data from external devices such as gyro, VRU and GNSS, the NSH also provides power and communications for ship-borne acoustic transceivers such as HPT 5000 or HPT 7000.

A range of hardware interface cards are available for interfacing Sonardyne transceivers and external sensors. By simply plugging these cards into the rear of the unit, the role of the Navigation Sensor Hub can be transformed from supporting simple to complex acoustic operations.

The NSH includes an IEEE-1588/PTP precision time source that can be linked to GPS PPS input. Multiple NSHs automatically synchronise their clocks. All incoming data is time stamped to sub-microsecond accuracy – outgoing transmissions and triggers can be scheduled to the same precision.

Depending on the application (DP, drilling or survey operations), the NSH can be configured in stand-alone, dual-independent or dual-redundant modes.

At a glance

• Use it with Ranger 2 and Marksman LUSBL systems
• Interfaces vessel’s acoustic instruments with operating software
• Time stamps gyro, VRU and GNSS data
• Offers up to 16 serial ports (RS232/485)
• Configurable for dual independent applications