Oceanology International 2018

Oceanology International 2018

Oceanology International is held in London every two years. In its 47th edition, it has firmly established itself as the world leading marine science and ocean technology exhibition and conference. Each edition, Oceanology International brings together the latest technologies and thought leaders worldwide.

Attracting visitors from a variety of industries including oil & gas, engineering, renewables and maritime security and marine science, Oceanology International gives the opportunity for buyers and suppliers to do business in one location. Oceanology International offers structured networking opportunities to help suppliers establish relationships and secure business on a global scale.

Find us in the conference programme:

Session: Unmanned Multi-Vehicle Collaboration: Ocean Mapping and Monitoring Applications

Date: Wednesday 14th March

Time: 1300 – 1500

Location: South Gallery Room 3 & 4

Title: Combined USV and AUV Hydrographic Operations

Speaker: Dan Hook, Senior Director – Business Development (ASV Global) & Ioseba Tena, Global Business Manager  – Marine Robotics Systems (Sonardyne International)

Abstract: Unmanned Surface Vehicles (USVs) can both navigate very accurately using DGPS and share large volumes of information using satellite communications, but as the water depth increases they become less effective at charting the seafloor. This is because the resolution of the mapping sensors is correlated to the range of those sensors from the observed seabed. On the other hand, Autonomous Underwater Vehicles (AUVs) are very stable and operate close to the seafloor at a near constant distance, but rely on dead-reckoning navigation to work out their position and traditionally are limited to low bandwidth acoustic channels to communicate.

The AUV dead-reckoning drift can be fixed using an Ultra-Short Baseline (USBL) system mounted on a USV and free space optical modems can be used to share large volumes of information between the AUV and USV. Successfully combining these platforms should produce a hydrographic survey with the resolution typical of an AUV and the accuracy typical of a surface vessel. Making an AUV and USV work together in this way is challenging. To ensure that accuracy is preserved, both platforms must share a common coordinate frame and their clocks need to be synchronized. The platforms must be capable of coordinating their mission autonomously. They must adjust their trajectories to ensure that the hydrographic output is consistent with the charting requirement.

Recent trials have demonstrated successful cooperation between AUV and USV platforms. The experiments used ultra-high resolution interferometric multiple aperture sonars mounted on an AUV equipped with an Attitude Heading Reference System (AHRS) and aided by a USBL system mounted on a USV. The systems combined to run data gathering lines and shared large volumes of data via a free space optical modem interface without the need for the AUV to surface.

This paper presents findings from these experiments and describe typical end uses for the technology.

For more detail on the session click here.

Session: Unmanned Vehicles: Communications & Data

Date: Wednesday 14th March

Time: 1530 – 1630

Location: South Gallery Room 3 & 4

Title: Inside Mission Control – Challenges of Over-the-Horizon Autonomy 

Speaker: James Cowles, Commercial Technical Sales Manager (ASV Global)

Abstract: ASV Global (ASV) have completed several over the horizon operations and have recently opened its Mission Control Centre specifically to further research in this area and increase over-the-horizon capabilities.

This presentation will discuss the challenges involved in the use of over-the-horizon autonomy, the lessons learnt from the recent MASSMO 4 operation and other research in this area.

Specific focus will be the ongoing Innovate UK USMOOTH project and ASVs’ advanced autonomy developments. Under the USMOOTH project, ASV has developed, built and tested an optimised EO-sensor suite, alongside a domain specific-, ROI-based- video compression framework to improve the remote operator situation awareness though low-bandwidth, high-latency communication link, which looks at sensor and communication technologies. ASVs’ advanced autonomy system utilises a collision regulation aware layer control approach which provides autonomy in a way that supports the ability for autonomous systems to share the water with conventional manned shipping.

The full benefits of autonomous vehicles cannot be realised without the exploitation of over the horizon operations and this presentation will show how the progression of these developments.

For more detail on the session click here.

Event: Oceanology International 2018
Dates: 13/03/2018 - 15/03/2018
Location: Excel, London
Stand: G401

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