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edited by Curtis Hand, photos from Hydromea

Hydromea successfully trials its wireless ROV system at TotalEnergies offshore site in the North Sea

Hydromea successfully trialed EXRAY, its wireless underwater ROV system, within a full ballast water tank on one of TotalEnergies’ North Sea floating production, storage and offloading vessels in November 2021.

The EXRAY prototype ready for the dive

The company deployed EXRAY to collect visual inspection data, validating system performance including wireless navigation and wireless communication, which is very difficult because of how water density can affect frequency and wave forms of radio signals.

The pilot was able to command and control the vehicle and receive real-time 1080p video feedback, using proprietary wireless optical communication technology that replaces a cabled connection. Without a tether attached, the risk of entanglement in complex confined spaces is greatly reduced.

The wireless EXRAY prototype in a full ballast water tank (the attached cable is for safety during the trial).

This project is funded by the Net Zero Technology Centre based in Aberdeen, Scotland and is part of a larger development roadmap focused on enabling portable and affordable multi-robot inspections of the increasing number of submerged assets in the North Sea.

This successful pilot trail proves the EXRAY technology functions in a real environment. Hydromea is a Swiss-based underwater robotics company founded in 2014. It enables

unparalleled underwater data connectivity and efficient remote inspection access to submerged assets. The portable autonomous underwater drone platform with its array of unique technologies developed in-house, brings a paradigm shift in how submerged assets are inspected and monitored, enabling the sustainable growth of the ocean economy.