Communications Link News

Cefas’ Wave Glider Lyra sailing away on the start of the 41 day mission after being deployed from RV Cefas Endeavour. (Photo: Cefas)

Scientists Complete 1700km Autonomous Acoustics Mission

to help identify the organisms that are acoustically detected.A second AlterEco mission is planned to start in mid-August. For this, Cefas engineers are assessing the feasibility of integrating the echosounder into Lyra’s computer system so she can transmit summary data over the satellite communications link and offer the ability to change pre-planned mission setups when required by Cefas scientists.Dr. David Pearce, Cefas Head of Profession, Marine Observations Systems and in command of this mission, said, “When Cefas purchased Lyra, the fisheries acoustics application was the one that

CS Recorder – a dynamically positioned, cable installation vessel, capable of simultaneous lay and burial utilizing plough systems and the Q1000 jet trenching ROV.(Photo courtesy of GMG)

GMG Secures Cable Contract for Rampion Offshore Wind Farm

Marine Group (GMG) announced that it has been awarded a contract from E.ON to install a fibre optic cable at the Rampion Offshore Wind Farm, under construction 13km off the coast of Sussex, UK.   Upon completion the cable will run from the shore to an offshore substation, providing a vital communications link for this major wind farm. The installation is expected to be completed later this month.   CWind, which is part of the GMG and is responsible for delivering the Company’s power capabilities, will execute the contract and will utilize the Group’s capable assets and project

Credit: Harris Caprock/Oceaneering

Uncontended Voice and Data Through TDMA Networks

most remote locations.   For Oceaneering, the IoT is enabled by the use of cameras and sensors on vessels to create feedback to users onboard and onshore. Traditionally, operations personnel were required to monitor gauges and sensors. With the availability of the Harris CapRock satellite communications link, sensors are interconnected and monitored via various gauges and dashboards instead of through manual intervention.    Through the IoT, companies are given great visibility into their subsea operations. Predictive maintenance has become a more common method to reduce costs, and

Max Ivanov and Scott Mowery with NOAA's Center for Operational Oceanographic Products and Services install an improved current sensor system on a navigation buoy in Chesapeake Bay. The system transmits real-time current speed and direction observations via satellite to help mariners more safely navigate busy shipping channels. (Photo: NOAA)

NOAA Engineers a Better Current Sensor for Mariners

and it had to be simpler to install and maintain.   The team designed and developed a prototype ADCP system consisting of a single buoy-mounted component that automatically transmits data using real-time telemetry via an Iridium satellite. The new approach eliminates the less reliable radio communications link and the entire data-receiving shore station employed by the old system.   Together, these improvements will reduce costs for PORTS partners by an estimated one-third or more. The satellite transmission also does not have a range limit, so current sensors can be placed on virtually any

Photo: OceanGate

INS to Help Manned Sub Explore Andrea Doria Wreck

navigational data directly to the pilot. The PHINS system provides accurate position, heading, attitude, speed and depth data as the submersible explores archeological sites and other undersea targets. With the use of PHINS, submersible pilots no longer need ship-based tracking and a topside communications link to obtain accurate position data.   “Previously our pilots relied on voice commands from the surface team who tracked the sub’s location to help vector us to the target. Now with iXBlue PHINS, the pilot can navigate autonomously throughout the dive and communicate the sub&rsquo

L-R: Kirk Regular, Fisheries & Marine Institute of Memorial University, Tommy Furey, Dr Peter Heffernan, Fabio Sacchetti, Marine Institute, Marcos Miguel Páscoa Parreira Rosa, Instituto Portugues do Mar e da Atmosfera (IPMA). Photo: Marine Institute

Marine Institute Maps Atlantic Sea Bed

Ireland and Newfoundland in Canada in 1857.   The project is one of the first to be carried out by the Atlantic Ocean Research Alliance, set up two years ago, on foot of the signing of the Galway Statement on Atlantic Ocean Cooperation.   There were five attempts to lay the first communications link between Europe and the US. However, the ships taking part had little of the crucial "hydrographic information" now available to show the hazards involved.   “We know now why that first cable didn’t last,” Marine Institute geophysicist Tommy Furey said, outlining

Submarine Mineral Genesis Monitoring System with WFS Seatooth S100 and other telemetry equipment at flow test (Image: WFS)

Subsea Data Logger and Controller Commissioned

, weight and size,” said Teo Sim Guan, Engineering Director of Nustar Technologies.   The Seatooth S100 is a compact, low-power, wireless modem, data logger, multiplexer and controller. The Seatooth S100 supports a variety of underwater applications, providing a robust wireless communications link up to 15ft in the most challenging environmental conditions. The Seatooth S100 is equipped with a standard data communications interface making it well-suited to underwater sensor, diver and vehicle applications. It can be deployed swiftly on temporary or permanent installations to support

Image: Defense Advanced Research Projects Agency

US Navy to Roll out Underwater Spy Satellites

robotic series that remade crusade in skies will shortly extend to a low sea, with underwater view “satellites,” drone-launching pods on a sea building and unmanned ships sport submarines, reports AFP.   The pods could launch surveillance drones in the air or at sea or provide a communications link when American forces are facing electronic jamming, said Jared Adams, spokesman for Defense Advanced Research Projects Agency (DARPA).   Adam said that the proclivity is to capacitate timely deployment of unmanned distributed systems to apart locations by pre-deploying a resources years

The SeaKing Range

MTR 100: Tritech International Limited

; The Tech Obstacle Avoidance & Target Recognition Sonar: Tritech’s SeaKing sonar is the sonar of choice for many of the world’s ROV fleets. For fast, reliable and complete operational flexibility, all products in the SeaKing family can be run simultaneously on a single ArcNet communications link, using the same processor and display. Real-Time Multibeam Imaging Sonar – Gemini Gemini’s real-time imaging eliminates the restrictions in low-visibility conditions. Eliminate restrictions in low-visibility conditions with a real-time imaging capability • Ultra-fast

Pacific Crest XDL Rover 2 (Credit: Trimble)

Trimble Releases Pacific Crest XDL Rover 2

over the entire band. The pocket sized product provides for cableless operations, and features an internal, rechargeable battery that enables portability for long operational hours. “The XDL Rover 2 is an ideal, high-speed radio receiver for field operations that require a one-way communications link,” said Jess Cobb, business area director for Trimble’s Radio Communications Group. “Its interoperability with existing equipment and greater functionality allow customers to rapidly deploy the XDL Rover 2 for maximum productivity.” This radio leverages the latest

Rowan Reliance

Nautronix Deliver First Systems of $10M Order to Rowan

System provides a method of backup control of critical BOP functions in the event of failure of primary communication and control.  At the heart of the system is Nautronix’ ADS² (Acoustic Digital Spread Spectrum) signaling technology. The system achieves a highly reliable communications link from a surface vessel to a subsea isolation device, such as a full BOP, or a simple isolation device which would be used during surface BOP drilling. These systems are one of the first of their type to be certified to comply with ABS’ new Integrated Software Quality Management


MTR100 '13 Tritech International Ltd

. The Tech: Obstacle Avoidance & Target Recognition Sonar. Tritech’s SeaKing sonar is the sonar of choice for many of the world’s ROV fleets. For fast, reliable and complete operational flexibility, all products in the SeaKing family can be run simultaneously on a single ArcNet communications link, using the same processor and display. The Super SeaKing family of products provide all around obstacle avoidance and target search and recognition capability to any underwater vehicle, offering Digital Sonar Technology (DST) and low power consumption (suitable for AUV platforms). Real-Time

Photo: WFS-Tech

Marin Uses Subsea Wireless Solution from WFS in Test Basin

instrumentation to optimize behavior and performance. The solution was delivered using a broadband data link from the seatooth family of subsea wireless instruments from WFS, enabling a high rate of data to be transmitted over a short range, underwater. Seatooth can provide a reliable wireless communications link in the most challenging subsea environments: •    In shallow water or turbid water •    In the presence of bubbles or contaminants •    Near to large subsea structures •    Through ground, seabed, concrete

Marine Technology Magazine Cover Nov 2018 - Acoustic Doppler Sonar Technologies ADCPs and DVLs

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