HYPACK 2017 Hydrographic Training Event

The HYPACK 2017 Hydrographic Training Event is scheduled to be held in New Orleans, Louisiana, USA, from 9-12 January 2017. The Hilton Riverside New Orleans will provide accommodation and host the event. During this event, Hypack will reveal the newest version: HYPACK 2017. The HYPACK Hydrographic Training Event is a low-cost method to receive comprehensive instruction in HYPACK, DREDGEPACK and HYSWEEP software for all. The programme includes a general training session--for those who are just beginning to use HYPACK or those who wish to have a refresher—and expert sessions for in-depth training on a particular subject. For participants requiring help... (read more)
2016-09-28 08:44:26

Underwater Wireless Video Communication

New Horizon of Underwater Explorations
This article presents the development, production and testing of wireless underwater acoustic video communications, which is unique in the world today. It also discusses the implementation of this technique on Autonomous Underwater Vehicles (AUV’s) to perform inspections of underwater oil and gas pipelines. The achieved characteristics, limitations and upcoming prospects are presented. Currently, there are about 1000 Remotely Operated Vehicles (ROVs) and up to 700 AUVs in the world, according to Douglas-Westwood. In the coming 4 to 5 years it is expected that this fleet can be increased by 50-60% and may be even more than doubled. The vast majority... (read more)
2016-09-27 04:18:23

Syrinx DVL for Flagship Canadian Ocean Science ROV

Doppler Velocity Log (DVL) technology from Sonardyne (USA) has been selected to help navigate Canada’s flagship undersea research vehicle, ROPOS. The order for a 4,000 metre depth rated, 600kHz Syrinx DVL was placed by the Canadian Scientific Submersible Facility (CSSF), the not-for-profit corporation who operate ROPOS, following a trial to evaluate its capabilities. This concluded that Syrinx was able to maintain, and regain bottom lock over a wide range of altitudes and seafloor terrains including soft fine sediment and rugged steep slopes close to hydrothermal vents. ROPOS (Remotely Operated Vehicle for Ocean Sciences) is a modular work-class ROV which can... (read more)
2016-09-20 04:27:45

Technology in Focus: Inertial Navigation Systems

Bridging the Positioning Gap
Inertial Navigation Systems (INSs) are a great help in applications where either position stability is of great importance or where bridging (small) positioning gaps is a requirement. To understand INS, imagine you are standing blindfolded in the centre of a long hallway. Then you start walking. You may proceed quickly at first, compensating as needed and covering ground with confidence. Eventually, however, you begin to lose your sense of alignment. This ability to successfully navigate when denied a visual frame of reference, even for a relatively short amount of time, represents our own basic human form of inertial navigation. An... (read more)
2016-08-25 11:33:17

Current Profiling Advances Improve Tidal Energy’s Competitiveness

The rapid growth of interest in tidal energy has highlighted the role of current profilers, able to measure the speed and direction of currents with increased accuracy in some of the harshest marine environments in the world. While the turbines produce the power, current profiling technology plays an important role in maximising the efficiency, and hence competitiveness, of this promising area of renewable energy. The use of seabed-mounted turbines to generate power from tidal currents has been steadily progressing through the experimental stage, with just a handful of small projects dotted around the world. However, this is a sector that... (read more)
2016-08-25 11:27:25

INS/GNSS Inertial Navigation System for Maritime Applications

With iMAR Navigation’s iNAT-RQT-4003, an RLG-based highly accurate INS/GNSS system is launched which is not affected by any ITAR regulations and which is handled under standard dual-use export control only. The system is designed for navigation and guidance applications as well as for most accurate surveying applications with interface capabilities to external sensors like USBL or DVL. The iNAT-RQT ('iNAT' stands for 'iMAR Navigation & Timing') is the successor of the iNAV-RQH system, which has now been on the market for more than 15 years. The new version has lower power consumption, smaller size, less weight and extended interface capabilities including Ethernet... (read more)
2016-08-01 08:49:17

AUVs in Hydrography

Integrating Autonomous Underwater Vehicle Capability into Hydrographic Operations
The US Navy and the Naval Oceanographic Office (NAVOCEANO) are committed to realising the vision that Autonomous Underwater Vehicles (AUVs) are available, affordable, and can play a critical role for many applications. Working in partnership with NAVOCEANO and the Office of Naval Research, the Remote Environmental Monitoring UnitS (REMUS) was developed at Woods Hole Oceanographic Institution and has improved positional accuracy due to newly developed technology. NAVOCEANO recently procured a REMUS 600 with a commercial shallow-water multibeam system onboard that meets the stringent accuracy requirements for hydrographic applications. NAVOCEANO hydrographic survey missions can now be augmented by LBS-AUV operations. However,... (read more)
2016-07-26 11:41:02

3D Mobile Seabed Mapping Using Underwater Laser Technology

Sonardyne has used 2G Robotics’ underwater laser scanning technology to dynamically scan and map the seabed in Monterey Bay, California, USA. The high-resolution deepwater mapping of Sur Ridge was performed using 2G Robotics’ ULS-500 underwater laser scanner mounted on an ROV. For the deployment, the ROV was equipped and navigated using SPRINT 700 AAINS, 6G Wideband Syrinx DVL (600kHz), ROV Nav 6 LBL transceiver and a precision pressure sensor. EIVA’s hydrographic survey and navigation software was integrated with the ULS-500 using EIVA’s dedicated driver for 2G Robotics’ systems to facilitate with data capturing and post-processing.  Sonardyne noted that laser mobile mapping... (read more)
2016-06-21 08:58:31

University’s Falcon Gets Smart

The UK-based Heriot-Watt University has successfully integrated SeeByte CoPilot with their Seaeye Falcon 1256, an observation-class ROV. With assistance from Heriot-Watt University’s Ocean Systems Laboratory personnel, the SeeByte team integrated and tuned the system to operate with a Teledyne RDI Workhorse Navigator 600kHz DVL. The work was conducted over a two day period including testing in Heriot-Watt University’s wave tank. This configuration can be used with other Seaeye Falcon systems. Professor Yvan Petillot, head of Research at the Sensors, Signals, and Systems Institute, commented that SeeByte’s CoPilot provides them a real-time input to their navigation and waypoint engine. This means... (read more)
2016-05-20 11:46:40

Ten More DVLs for Iver AUV Navigation Ordered from Teledyne RD Instruments

Teledyne RD Instruments (TRDI, USA) has received an order for a further ten custom-designed Explorer Doppler Velocity Logs (DVLs) to provide precision navigation and current profiling capability on board OceanServer Technology’s Iver3-580 autonomous underwater vehicles (AUVs). This brings the total number of DVLs ordered by OceanServer for integration onto IVER AUV systems to 66. These vehicles are designed for customers and applications which include the US Navy Fleet Survey Team for littoral data collection to support the Warfighter's needs, the Canadian Government for Advanced Mine-Counter-Measures Research, several universities for various research programs, and commercial survey providers doing coastal engineering projects. ... (read more)
2016-04-01 10:58:12
Search Filter