Gps News

A Hugin AUV being launched (Courtesy Kongsberg)

Unmanned Vehicles: 25 Years of Milestones

of consumer electronics, it is very rapid product development. The AUV community is moving quickly into the next 25 years.ASVs ThenAs with AUVs, MIT was a source of early autonomous surface vehicle (ASV) development. There were significant parallels with AUV work. Early prototypes in the 1990s did not use GPS, lacked WiFi, and struggled with payloads. Like the Odyssey AUVs these vehicles used a fully autonomous approach without any vehicle interaction once a mission was launched. One area of early innovation on the surface was the use of internal combustion engines for propulsion. These early ASVs were

© Graphithèque/AdobeStock

NATO Uses IoT to Study the Oceans

and pollutants such as plastic.With a requirement to track large quantities of drifters, SPOT Trace’s low device cost and affordable data charges were key factors in NATO’s procurement decision. Buoys are fitted with a small (7x5 cm) SPOT Trace device which includes an integrated GPS receiver, simplex transponder and motion sensor.NATO STO CMRE is conducting several studies in parallel. One, sponsored by the U.S. Office of Naval Research, is using SPOT Trace-equipped drifters to conduct oceanographic studies in the Alboran Sea in the Mediterranean, between the Iberian Peninsula

Photo: ASL Environmental Sciences

Sea Level Variation Study Using GPS and an Ice Profiling Sonar

Dr. David Holland of New York University, in collaboration with Dr. Natalya Gomez at McGill University, is leading an investigation of sea level variations in the Disko Bay region of western Greenland.  A shore-based system compares the direct arrival of GPS signals to the signals reflected off the sea surface to obtain sea level. The presence of sea ice and icebergs complicate the measurements. A shore-mounted camera provides information about the surroundings and the presence of sea ice and icebergs when there is daylight.  Underwater sonar devices can supplement the camera-based

Image: Sonardyne

Sonardyne Leads AUV Collaboration Project

navigational accuracy by integrating low- and high-power Inertial Navigation System (INS) sensors.  Geraint West, Global Business Manager - Oceanographic, Sonardyne said, "The accuracy of low-power sensors degrades over time and AUVs consequently often have to surface to reinitialise with a GPS fix. However, by including high-performance, high-power navigation instruments, like our SPRINT INS, and integrating them with the low-power instruments to dramatically reduce power consumption, vehicle operators will get the best of both worlds, which will enable longer-duration independent deployments

VERIPOS GAJT-710-MS (Image: VERIPOS)

New GPS Interference Mitigation Solution

gas environment that can cause major delays in projects and impact vessel, operational and crew safety.The new antenna from VERIPOS, part of Hexagon’s Positioning Intelligence division, works to nullify the interference or jamming source that’s trying to overpower the satellite signals that GPS positioning systems use to determine location. With the source nullified, the receiver can acquire and track GPS signals while maintaining high-accuracy positioning.The technology that the VERIPOS GAJT 710-MS uses has been battle-tested and proven to work in some of the most demanding environments

Dinner plate jelly spotted during a descent to Main Endeavour Field (Copyright: 2018 ONC/OET/Nautilus Live)

Ocean Networks Canada: 'Wiring the Abyss'

monitored the Endeavour hot vents since 2009.This year’s expedition also installed the last set of earthquake early warning sensors on ONC’s offshore observatory along the Cascadia subduction zone. ONC and Natural Resources Canada have been simultaneously installing land-based seismic and GPS sensors on Vancouver Island. Once completed, ONC’s comprehensive earthquake early warning system will be tested and delivered to Emergency Management BC by March 2019. The BC government has invested $5 million to help develop the existing system

(Photo: SeaRobotics Corporation)

New ASV Delivered for Post-hurricane Surveying

high-precision bathymetric surveys, water quality analysis, hydrographic surveys, shallow water, force multiplier and many other applications. The ASV was delivered with a fully integrated Edgetech 6205 multi-beam echo sounder (MBES), R2Sonic 2022 with Type II I2NS motion reference unit and dual antenna GPS system, as well as a surface sound velocity probe and a cast winch deploying a CTD—all tightly integrated with HYPACK software

(Photo: Seatools)

Remote Monitoring System Delivered for The Ocean Cleanup

. The sensors are linked to five solar-powered electronic pods, which will be mounted on the barrier. The pods communicate to each other via a WiFi mesh network and satellite connection, enabling The Ocean Cleanup to monitor its system remotely and retrieve data in real time – including images and GPS locations – from its headquarters in Rotterdam, the Netherlands.Seatools performed an extensive engineering trajectory on behalf of The Ocean Cleanup. Conscientious structural engineering of the pods and power management are exemplary of this process. The pods, which will be subject to oceanic

(Image: Kongsberg)

Mapping the Future

the surface, how challenging is it to ensure controlled, safe navigation of both vessels during mapping operations?The system architecture of autonomy for planning, analysis and execution is similar for AUVs and USVs but there are differences in sensors and functions because of the environment. Lack of GPS and radio communication are fundamental constraints to AUVs that are solved by acoustics and aided inertial navigation systems.USVs need advanced scene analysis and route planning to navigate safely in areas with maritime activity. There are significant thresholds to sufficient functionality and robustness

Figure 1: The Sea Otter Surf Zone Crawler

Seafloor Crawlers: New Robotic Tools for Challenging Missions

.Specs of the Otter-SZC include:Symmetrical dual-sided operation for operation in the heavy surfWeight: 45-kg dry, 1-m long, 55-cm wide and 25-cm high (expandable in length and width)Speed: forward or reverse, variable up to 1-m/sNavigation: 3-axis IMU, FOG, dual encoders, dual-sided, dual-frequency GPSControl: user selects fully autonomous (pre-programmed), tether, or radio controlBattery: rechargeable Li-ionPorts: charging port, programming Ethernet port, two guest Ethernet portsThe Sea Otter design is modular. The starboard and port side pontoons are core pieces, but the length, width and ground

Vessel position using Sonardyne and Guidance Marine technology compared with RTK Global Positioning System data. (Image: Sonardyne International)

Project to Enable Autonomous Navigation in Denied Environments

in nearby Turnchapel, where surface markers were located, the two instruments were used to calculate Echo Explorer’s position. Less than 0.5 metre positional deviation over a 1 kilometre transit was achieved during the trial, when compared with local, shore-based RTK Global Positioning System (GPS) data.Trials later this year will to incorporate water track velocity data, using Sonardyne instruments, to further aid the INS positioning. Guidance Marine will also deploy its recently launched SceneScan product, which maps surface features of structures, such as offshore oil platforms, processes

ION Sells Compasses for Subsea Vehicle Navigation

ION announced today the second sale of a number of its highly differentiated optical magnetic heading sensors to enable subsea vehicles to quickly reach their desired destinations.In the fourth quarter, successful field trials demonstrated the advanced compasses’ accuracy in GPS-deprived environments and led to delivery of the first commercial order in the first quarter.In less than a year, ION's devices business line made adjustments to adopt the compass offering from ION’s towed streamer positioning solution to suit the underwater vehicle market’s navigation requirements.

ION, Greensea Ink Joint Marketing Agreement

options to integrate ION sensor technology into a growing number of navigation systems. Greensea and ION have already collaborated to integrate ION’s optical magnetic heading sensor into Greensea’s INSpect navigation system to dramatically improve subsea vehicle navigation accuracy in remote GPS-deprived environments.“I am really pleased with how quickly we have adapted our technology to solve similar challenges in other industries,” commented Chris Usher, Executive Vice President of ION’s Operations Optimization group. “Greensea was instrumental in helping us identify

(Photo: SeaRobotics)

Canadian Hydrographic Service Grows Its USV Fleet

, cost-reducing activities is being developed for both traditional survey tasks and survey tasks in previously denied, and currently unsurveyed, areas.The new USVs were delivered with a fully integrated R2Sonic multi-beam echo sounder (MBES), associated motion reference unit and dual antenna RTK GPS system, as well as a surface sound velocity probe and a cast winch deploying a CTD—all tightly integrated with HYPACK software.“The USVs will be used extensively to improve bathymetric, hydrographic and nautical data throughout Canada for waterways, estuaries and coastal bathymetric surveys

(Photo: National Search and Rescue Agency Republic of Indonesia)

Divers, Underwater Drone Searching for 192 Missing in Ferry Disaster

underwater vehicle (ROV) that can operate up to a depth of 380 m (1,247 ft), he added.The first team of divers encountered poor visibility and freezing cold when it got to a depth of 50 meters (164 ft), said Muhammad Syaugi, head of the national search and rescue agency.Rescue teams in boats carrying GPS devices, binoculars, life jackets and oxygen tanks for survivors, have found little on the lake's surface.Santika, 28, was in tears as she awaited news of her cousin and the latter's fiance who were on the ferry, returning from a holiday before the couple's wedding, planned for next week

(Image: Valeport)

Valeport Unveils New Probe

pressure sensor technology to also provide computed conductivity, salinity and density. This is coupled with Bluetooth connectivity and a rechargeable battery.The handheld profiler, constructed from Titanium, has been designed from the outset with the intention of a seamless workflow and has an integral GPS to geo-locate every profile. SWiFTplus is intended for coastal, harbor and inland environmental and hydrographic survey use.Valeport’s new turbidity sensor addition is effectively two sensors in one. The first is a “classic” turbidity sensor (nephelometry using a 90˚ beam angle)

A Record-setting Journey to the Atacama Trench

Ocean Design). The EdgeTech BART board developed for this mission features 2 burnwires, and three additional commands, all of which could likewise be converted to burnwires.Radio Direction Finding (RDF) and strobe recovery beacons were made by Xeos (Dartmouth, NS, CAN). These worked very well. A custom GPS beacon board (Global Ocean Design) and interior LED strobe, worked well. Satelitte covereage in the southern hemisphere slowed the rate of determining true position transmitted to the ship.Chilean researchers requested twin 30-liter water samplers be included on their lander for microbial studies

Marine Technology Magazine Cover Jan 2019 - Underwater Vehicle Annual

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