Tethys Robotic's new ROV Leverages Nortek DVL Tech
A new Remotely Operated Vehicle (ROV) from Switzerland’s Tethys Robotics is aiming to provide a safer alternative to putting divers in the water, utilizing Nortek DVL to complete its navigation solution.Jonas Wüst, CEO at Tethys Robotics, set out to meet these challenges of working efficiently, safely underwater following a student research project at Eidgenössische Technische Hochschule Zürich (ETH Zurich), a public university in Switzerland. Tethys Robotics’ goal was to build an autonomous underwater robot capable of being deployed in rough water with currents of up to 2
Armach's Hull Service Robot Excels in Over-the-horizon Operation Trials
side of the ship. Once there, it was able to attach itself successfully, and travel along the ship's side, performing a short test cleaning protocol.“Peyres adds: "We continue to leverage Greensea's OPENSEA open architecture control software, fused with Armach’s On-Hull navigation solution from the HSR's [Hull Service Robot's] myriad sensors, providing rock-solid vehicle control. "We also knew that Greensea’s Safe C2, a distance operation solution also part of the OPENSEA suite, had already proved that it was operationally viable for conducting advanced
Armach Robotics Set to Take the Pole Position on Ship Hull Maintenance, Intelligence
and where are we today?Greensea Systems is a software company, well-known for our software platform on ocean robotics. We're also well-known for our unique navigation and autonomy solutions. A few years ago we started a program with the Office of Naval Research (ONR) developing a very accurate navigation solution for robots transiting on a ship hull for the purposes of proactive in-water cleaning the hulls. ONR was a pioneer in the development of proactive in-water grooming of ship hulls back in the early to mid-2000s.This requires the insurance of a 100% coverage of the hulls, and to be really effective
Greensea Launches Hull Cleaning Spin-off Armach Robotics
the hull, and 100% coverage can be assured, the company said.Rob Howard, VP Growth and Strategy at Armach Robotics, said, “Hull drag is time and money in the shipping business. The system we have devised represents the closest any company has got to fully autonomous hull cleaning. With our navigation solution, the robot’s route across the hull is optimized to within inches ensuring no areas are missed or over cleaned, so we can be efficient and fast in performing our service.”Armach said it leverages Greensea’s proven navigation systems to ensure that the robot cleans the hull
Subsea Vehicles: A Journey to the Under – and Outer – Worlds
this with the visual camera data we have to make 3D seafloor maps to centimeter or even millimeter scale. So we’re super excited about this.”TRN can be done with a small cheap camera – machine vision cameras are in the order of $1700, says Machado. While it’s not a complete navigation solution – some acoustics will be needed to give the vehicles an initial geodetic coordinate, to locate it within a global reference system – “once it is well calibrated to give us quantitative results, we can operate just by seeing the seafloor with a camera we already have onboard
Autonomous Navigation – with or without GNSS
(INS). That’s been achieved with SPRINT-Nav, which is what we call a hybrid acoustic-inertial navigation system, where an INS and acoustics (i.e. the DVL), and a highly accurate pressure sensor, are tightly integrated, physically and algorithmically, to create a single, high performance navigation solution. SPRINT-Nav uses a SPRINT INS and Syrinx DVL. Because the single SPRINT-Nav instrument has an INS inside it, it optimally compensates for the motion of the DVL. It also needs fewer beams to navigate because individual beam observations are used by the INS and it then decides whether
Sonardyne Tests Autonomous Vehicles Navigation for UK MOD
of performance, known as spoofing.Sonardyne’s SPRINT-Nav is already proven as a reliable navigation instrument for unmanned underwater vehicles, which operate in what is effectively a GPS or GNSS denied environment. Now it will also be used to provide a high integrity, continuously available navigation solution for a USV, like SEA-KIT X, operating in littoral zones in water depths up to 150 meters.SEA-KIT is a 10,000 nautical mile-range vessel able to carry up to 2.5 metric tons of payload and deploy and recover autonomous underwater vehicles (AUV) and remotely operated vehicles (ROV). This capability
NORBIT DCT – Hydrographic Survey Made Easy
WGS84 coordinates, and all data is time stamped in the NORBIT hardware. The speed of sound profile is also saved in the same file (or can be added to the processing software if needed). At the same time the raw GNSS/INS observables are recorded and allow for navigation postprocessing of a complete navigation solution even if the RTK dropout happen during the survey or no RTK was available at a survey time.ConclusionsNORBIT’s latest Data Collection Tool (DCT) is a simple and useful tool for new markets to emerge onto the hydrography survey world. The web browser interface allows conduction of the
SBG Systems Unveils New IMU
Inertial motion sensing solutions provider SBG Systems has released the Horizon IMU, a FOG-based high performance inertial measurement unit (IMU) designed for large hydrographic vessels surveying harsh environments.Navsight Marine Solution consists in a powerful and ready-to-use inertial navigation solution dedicated to hydrographers. It is available at different levels of accuracy to meet the various application requirements and can be connected to various external equipment such as Echo-sounders, LiDAR, etc.Navsight Marine Solution already offered two levels of performance with the Ekinox and
February 2024
