Dan Levett

Teledyne Marine Announces Sale of Two SeaRaptor 6,000m AUVs to Argeo

A global leader in the manufacture of Unmanned Maritime Systems, Teledyne Marine Vehicles, a business of Teledyne Technologies Incorporated (NYSE:TDY), today announced that Argeo of Norway, a newly listed company and growing subsea offshore service company, has procured two Teledyne Gavia SeaRaptor 6,000 meter rated Autonomous Underwater Vehicles (AUVs).  The two SeaRaptor AUVs will contribute to Argeo’s growing fleet of AUVs and will enable deep-sea surveys to the benefit of marine industries including offshore wind, aquaculture, deepsea minerals, and offshore oil & gas.

The SeaRaptor 6000 AUVs will be equipped with the latest Kraken MinSAS 120 Synthetic Aperture Sonar (Kraken Robotics, Canada) providing large swath area coverage and high-resolution imagery and bathymetry data collection.  The vehicles will also be fitted with Teledyne RESON T50-S Multi-Beam dual frequency 200/400 kHz Echo Sounders, Teledyne Benthos Chirp III Sub Bottom Profilers, iXblue PHINS 6000 INSs coupled to Teledyne RDI Tasman DVLs, and CathX Hunter Camera Systems.  All data collected will be processed onboard using Teledyne CARIS OnBoard postprocessing and mosaicking software to allow quick turnaround during missions.  The AUVs are also fitted with a large variety of scientific sensors from RBR which will take Conductivity, Temperature, Pressure, Turbidity, pH, Dissolved Oxygen, Redox, CH4 and Magnetic measurements to provide valuable water column data which will contribute to better ocean basin characterizations.

“Teledyne is very pleased to supply these unique deep water AUVs to Argeo.  We see the strategic partnership forming between our companies as being beneficial, far into the future.” said Mike Read, President, Teledyne Marine.

Both vehicles will be supplied in 40 foot containers hosting their Launch and Recovery Systems, deck support and handling equipment and a spares set to offer the highest redundancy and availability of the systems.  The vehicles are designed to be air transportable, including their Li-Ion batteries which offer over 40 hours of autonomy for long endurance missions.

Teledyne is excited to offer these systems to assist in bringing back new information as to the nature and composition of the deepest parts of the planet.

For more information, please visit: www.teledynemarine.com

by Dan Levett

Xeos Technologies Chosen by the NFSI to Supply Recovery Beacons for Major Refit

Xeos Technologies is excited to announce that it has been chosen by Canada’s National Facility for Seismic Imaging (NFSI), headquartered at Dalhousie University in Halifax, Nova Scotia, to help rebuild Canada’s ocean seismic capability. Xeos will be supplying 120 Apollo Mono GPS, Iridium and LED beacons along with 120 XMB RF recovery beacons to monitor, track and recover a network of Ocean Bottom Seismometers (OBS) deployed across the world’s oceans and inland seas. The system of beacons will provide precise location information to the deployment and recovery teams in real-time, while also providing a safeguard against any unplanned surfacing events.

The beacons will be integrated with the Broadband Ocean Bottom Seismometers (BOBS) manufactured by Güralp Systems Ltd in the UK. Guralp’s BOBS systems use acoustic telemetry to deliver near real-time seismic data from the ocean floor to the surface without cables. The state-of-the-art BOBS network created for this project, designed to replace the previous system decommissioned in 2015, will support  fundamental science discoveries. The goal is to generate a vast repository of core data that NFSI scientists can utilize to probe critically important questions related to earth structures, undersea earthquakes and tsunamis. The NFSI is a partnership of ten major universities from across Canada including Dalhousie University, University of Victoria, University of British Columbia, Simon Fraser University, University of Manitoba, University of Toronto, University of Ottawa, Université du Québec à Montréal, McGill University and Memorial University.

Xeos will work in close cooperation with Güralp and the NFSI project team to provide user training to ensure successful deployment and recovery missions. Geoff MacIntyre, Vice President at Xeos Technologies commented, “An enormous amount of time, energy and resources will be put into this project over the next couple of years and we are honoured to have been chosen to provide the technology responsible for safeguarding and recovering it all. The data that this system will produce over the next several years will be used to expand our understanding of the ocean bottom environment and support important scientific discoveries. We are looking forward to working with the project team and helping it all come together”.

Professor Mladen Nedimovic, NFSI Director, Department of Earth and Environmental Sciences, Dalhousie University said: “The NFSI is thrilled to have Xeos Technologies as a partner and supplier of 120 sets of recovery devices for our BOBS. We look forward to working together toward safe deployments and recoveries of our large fleet of BOBS with the goal to record data that will transform our understanding about critically important earth structures, particularly those offshore Canada that generate large earthquakes and tsunamis.”

For more information, please visit: xeostech.com

by Dan Levett

Introducing Subnero Multi-Channel Modems

Subnero modems running UnetStack software framework, are at the forefront of the underwater wireless communication technology. In addition to providing unparalleled communication and networking performance, they also provide the user with the ability to transmit and record arbitrary waveforms. Being software-defined, these devices provide the flexibility to you, the user, to develop or extend the capabilities using your own techniques. We, at Subnero, are constantly working to bring you new features to help you realize your vision of underwater communications and networking.

Now, imagine being able to use our modems to do things that were not possible previously, with a conventional acoustic modem. For example, let’s say you have a communication link, that stops working beyond a certain range. You upgrade your modem and you can extend your communication range beyond what was previously possible.

Or, say you want to monitor and record the underwater soundscape, but also send events of interest back to a control station in real-time, or allow control of the recording device from the surface. It would be nice to have a single device that can allow recording using multiple synchronized receiving channels, but also be able to communicate with that device directly, without the need to attach an external modem.

What if you have a single device that can do all of these functions in real-time? Today we are very excited to launch a new class of underwater acoustic modems, called the Subnero multi-channel modems. The multi-channel modems combine our silver edition M25M series modems, with a multi-channel acoustic recorder, thereby providing an acoustic modem with multiple synchronous receiving channels, without a significant change of the form factor. Configurable with up to 4 additional synchronous receiving channels, each channel can have a sampling rate of 128 or 256 kilo samples per second.

Out-of-the-box, you can use the multi-channel modems as a normal modem or a standalone acoustic recorder or both at the same time. The data collected from the additional receiving channels can be saved to the modem’s internal storage to be downloaded later. The recordings can be scheduled before deployment or triggered remotely using specific signals thereby making the multi-channel modems, ideal candidates for applications such as rapid environment assessment.

These devices use spatial diversity combining techniques to decode transmissions from remote modems, in real-time. This increases the effective communication range by acting as a spatial diversity receiver.

In addition to the extra receiving channels, the multi-channel modems are also equipped with sensors such as GPS, compass and a depth sensor, for underwater positioning and tracking applications. By combining techniques such as time or phase difference of arrival with the data from these sensors, three dimensional positioning and tracking is also available with the multi-channel modems.

Some of these features will be available as a software upgrade in the form of UnetStack premium agents.

For power users, the full potential of the device can be harnessed through the customizability of UnetStack. You can get direct access to raw data from all the channels in real-time, through UnetStack APIs. The out-of-the-box length of the hydrophone cables is 10 m from the housing, which allow you to decide the placement of these channels depending on your application. With such flexibility, users can develop their own array processing or spatial diversity combining techniques or positioning applications with the help of various developer tools provided by UnetStack. With native support for scientific computing languages such as Julia, or UnetStack gateway support with Python, these devices reduce the time to deployment of your algorithms, dramatically. In short, the kinds of applications you can develop using our multi-channel modem platform is only limited by your imagination.

We hope you find our multi-channel modems exciting.

We love to hear from you. Let us know your thoughts and comments through [email protected]

by Dan Levett

Hybrid AUV secures Statnett Survey Contract for Modus

Global subsea services company, Modus Subsea Services Ltd has been awarded a contract to perform survey services in connection with a new cable corridor requirement in Ofotfjorden, northern Norway.  The campaign will use the Modus Hybrid AUV (HAUV) system which represents the very latest in merged ROV and AUV technology.

As part of the scope, Modus shall perform a desk top study, to identify further site information and support the preparation of the project. In Q2 2021, Modus shall mobilise HAUV-2 to collect geophysical seabed survey data, perform target inspection and an environmental survey across a 6km x 1km area.  The HAUV will be operated as a high-speed ROV in tethered mode to provide real time data feedback and decision making. The scope will be performed from the M/V Elektron vessel in a water depth range of less than 10 metres to 500 metres.

To perform the scope of work the HAUV will house Multibeam Echosounder, Sidescan Sonar and Sub-Bottom Profiler. The speed in which the HAUV can collect data in high current and shallow water environments without compromising data quality, is expected to yield significant project efficiencies for Statnett.

"This is the first survey contract we have entered into with Modus and we are looking forward to the cooperation", says Karin Ryssdalsnes Project Manager at Statnett.

Guy Lainchbury, Commercial Manager for Modus said “Working for Statnett, the system operator of the Norwegian grid, is a great opportunity for Modus to demonstrate this class leading Hybrid AUV technology. The difficult environmental conditions that we will experience, along with the ability to collect multiple streams of data from varying sensor technology and at high speed, will be the defining factors of this project. Modus HAUV systems are now used globally, and we have achieved success in reducing overall project timelines and providing best in class reporting.  Modus look forward to working with Statnett across their subsea network into the future with this disruptive technology.”

For more information, please visit: www.modus-ltd.com

by Dan Levett

OSIL Modular Vibrocorers Make Global Impact

Leading environmental monitoring systems manufacturers Ocean Scientific International Ltd (OSIL) is pleased to report that its range of robust and easy to use vibrocorer systems are increasingly in use worldwide.

A multitude of users in Europe, Asia and Africa currently boast a modular OSIL vibrocoring system amongst their geotechnical assets, and have put the systems to work on a variety of marine reclamation projects, offshore drilling works and pipeline route surveys in addition to academic studies.

The OSIL Vibrocorers have been designed as tough but versatile modular systems for the sampling of densely compacted sediments in up to 250m water depth, which are easy to transport and which minimise dockside assembly for quicker mobilisation. The Vibrocorers benefit from a simple deployment and recovery procedure, which suits opportunistic use of available vessels.

The systems can either be assembled dockside or on the vessel itself into a 3m or 6m system before deploying over the stern. The corers have been designed for straightforward horizontal or vertical recovery on the vessel and effortless removal of the core barrel and sample once back on deck.

OSIL’s global reputation for the production of simple, cost effective sediment coring systems has steadily increased year-on-year as a direct result of word-of-mouth recommendations from existing clients.

For further information, please visit: www.osil.com

by Dan Levett

Modus acquires two (2) complete, integrated, SPICE AUV systems from Kawasaki Heavy Industries, Ltd.

Modus Subsea Services Ltd. (Modus), a leading independent expert in the provision of seabed intervention, IMR, survey and specialist AUV services, announces the acquisition of two (2) complete, integrated, SPICE AUV systems from Kawasaki Heavy Industries, Ltd. (KHI).  SPICE AUVs represent highly capable systems, delivered by one of the World’s leading OEMs, capable of providing a wide range of autonomous services and data acquisition with high efficiency and quality, down to 3,000m water depth.

“This multi-million-pound investment represents a significant expansion of Modus’ capability and fleet.  SPICE represents a world first AUV with integrated manipulator (robot arm), designed for cable and pipeline inspections as well as more conventional, high quality, high efficiency surveys.  Our strategic relationship with KHI positions us well for growth and cements our leading position in the market” said Nicholas Tompkins, Group CEO.

Building on Modus’ existing fleet of Saab Sabretooth HAUVs, currently the world’s largest such fleet, SPICE is equipped with a fully comprehensive survey suite, capable of enhancement to suit specific Client needs and rapid global mobilisation.  The acquisition of the SPICE systems enables Modus to strengthen its position as a technology innovator and provider of high quality, low cost, integrated services.

For further information, please visit: www.modus-ltd.com

by Dan Levett