CHC Navigation introduces the P2 GNSS Sensor Series

CHC Navigation (CHCNAV) releases the P2 GNSS Sensor Series providing high accuracy positioning and heading solution in a compact and rugged enclosure. The P2 GNSS Sensor series is the GNSS sensor for a wide variety of applications such as reference station, marine systems, unmanned navigation, industrial automation, robotics and machine control. Easy integration The P2 GNSS series is designed to significantly reduce system integration efforts by combining rich connectivity interfaces including RS232, low latency PPS output, Ethernet, CAN bus protocol and a comprehensive web interface for configuration set-up. Industrial design The new series integrates the latest GNSS technology in a... (read more)
2019-04-11 08:55:22

SBG Systems Releases Horizon IMU for Navsight Marine Solution

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 IMU 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. Completing the product range Navsight Marine Solution already offers two levels of performance with the Ekinox and Apogee IMUs. These MEMS-based IMUs address most hydrographic markets whether shallow or deep water. The Horizon IMU allows customers to bring Navsight... (read more)
2019-03-18 03:22:27

Hydrographic Surveying: Where Do We Stand

The Ever-increasing Accuracy of Mapping the Surface Waters
Hydrographic surveying is highly specific and requires a suite of advanced acquisition and positioning sensors attached to a mobile survey platform as well as sophisticated software to allow the correct combination of all the data. For those within the industry, the advances over the last decade may feel more like an evolution rather than a revolution. If we look back one, two or even three decades, we can see the enormous leap hydrographic surveying has taken. Where do we stand, and what can we expect for the near future? In this article, we will look at the present compared to... (read more)
2018-12-11 02:51:31

SeaRobotics Delivers Two USVs to the Canadian Hydrographic Service

SeaRobotics recently announced the delivery of two additional 2.5m autonomous unmanned surface vehicles (USVs) to the Canadian Hydrographic Service (CHS), a part of Fisheries and Oceans Canada, bringing the fleet to four systems. These USVs, built by SeaRobotics, are complete hydrographic systems including multibeam echosounders, support sensors, cast winches, deployment carts and road trailers. The SeaRobotics USVs are being deployed across Canada supported by regional training performed by SeaRobotics. CHS has completed the first year of operation and the analysis of the efficiency and cost effectiveness of USV usage. A profile of high-productivity, cost-reducing activities is being developed for both... (read more)
2018-06-26 10:37:07

Hydrographic Surveying in the Port of London

Charting for the 21st Century
By the end of this year, the gap will have finally closed on the mandatory requirements for ships to carry an Electronic Chart Display and Information System (ECDIS), with all existing vessels of over 10,000GT being required to be so equipped (all new vessels greater than 3,000GT already have to comply). This article explores the provision of the chart data for the Electronic Navigation Charts (ENC) available to such systems and how the UK's Port of London Authority (PLA), as a major port, is providing such data. This article has been brought to you by Teledyne CARIS To survey the... (read more)
2018-05-15 08:23:35

Hemisphere GNSS Presents Atlas-capable Vector V1000 for Precise Marine Applications

Hemisphere GNSS has introduced the all-new Vector V1000 GNSS receiver, which provides high-accuracy heading, position, pitch, roll and heave data. The V1000 supports multi-frequency GPS, GLONASS, BeiDou, Galileo, QZSS and IRNSS (with future firmware upgrade and activation) for simultaneous satellite tracking. The V1000 is powered by Hemisphere’s innovative and industry-leading Athena RTK engine and is Atlas L-band capable. The new V1000 is designed for professional marine applications, such as hydrographic and bathymetric surveys, dredging, oil platform positioning, buoys and other applications that demand the highest-level 3D positioning accuracies. Based on Hemisphere’s Eclipse Vector technology, the V1000 uses the most accurate... (read more)
2018-03-27 09:10:24

SBG Releases Navsight Marine Solution

At this year’s Oceanology International in London, UK, SBG Systems released the Navsight Marine Solution, a full high-performance inertial navigation solution designed to make surveyors’ tasks easier in both shallow and deep water. Navsight Marine Solution integrates the latest generation of gyroscopes, accelerometers and GNSS receivers. Navsight provides high-performance motion and navigation data as well as a real-time heave accurate to 5cm. To allow surveying when wave frequencies are large or complex, the solution comes with a delayed heave feature. If higher performance is required, the surveyor can count on Qinertia, SBG’s INS/GNSS post-processing software. New calibration procedure for easy installation... (read more)
2018-03-20 11:25:57

World's First Fully Autonomous Hydrographic Survey

No Line Plan, No Boat Crew, Just Sensors
During September 2017, the world’s first autonomous hydrographic survey was performed. 'Autonomous' means not by remote control, but rather that the autonomous surface vehicle (ASV) used guidance from survey software to run pre-planned survey lines or automatically generated lines based on sonar coverage, with human interaction possible but not required. The Channel Coastal Observatory (CCO) commissioned 4D Ocean to undertake a hydrographic survey of the seabed offshore of Hurst Spit, Western Solent, using a SeaRobotics ASV 2.5. The pilot survey was supported by the Maritime & Coastguard Agency (MCA) and UK Hydrographic Office (UKHO). By Duncan Mallace, contributing editor, Hydro... (read more)
2018-02-13 11:36:29

OceanAlpha Delivers Innovative USV Solution to Mining Industry

OceanAlpha’s autonomous bathymetric survey boat, the ME40 for hydrographic survey, has been applied in the mining industry for tailing dam surveys, in addition to its common application in lakes, rivers, reservoirs and oceans. All that is necessary is to set up the survey waypoints; the boat can then acquire online bathymetric data automatically based on GPS navigation. Water and tailing management is a key control process in mine management. Bathymetric surveys of tailing dams are important because the pond floor under the water is constantly changing and the water volume storage is therefore also changing. Local authorities may also require mining companies to... (read more)
2017-12-21 10:43:50

Technology in Focus: GNSS Receivers

Evolution Towards Higher Accuracies
GNSS has now been operational in the surveying industry, and especially in hydrography, for more than 25 years. Whereas the first receivers such as the Sercel NR103 (once the workhorse of the industry) boasted 10 parallel GPS L1 channels, current receiver technology has evolved to multi-GNSS, multi-channel and multi-frequency solutions. This article looks at the current state of affairs and tries to identify the areas where development can be expected in the years to come. In hydrography, we can distinguish between ‘land use’ and ‘marine use’ of our GNSS receivers. Especially in the dredging, nearshore and inshore domains both land... (read more)
2017-10-02 09:48:11
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