Exploring the Future of Subsea Robotics: Insights from Alex Phillips of the National Oceanography Centre

Innovations in Subsea Robotics: Insights from Alex Phillips at the National Oceanography Centre

Subsea robotics is an exciting field that continues to evolve, with much of the innovation driven by academic research. One of the frontrunners in this space is the National Oceanography Centre (NOC) in Southampton, UK, which boasts a formidable fleet of over 40 autonomous underwater vehicles (AUVs) and a dedicated team of 60 engineers and scientists. Recently, we had the opportunity to chat with Alex Phillips, the Head of Marine Autonomous Robotic Systems (MARS) at NOC, to gain insights into the cutting-edge developments in underwater autonomous systems.

A Glimpse into Alex Phillips’ Journey

Alex’s journey into the world of subsea robotics began in a rather unconventional way. Initially trained as a naval architect, he found himself ‘sinking things’ rather than designing yachts. Fifteen years ago, he participated in a student competition to design and build AUVs, a venture that sparked his passion for underwater technology. After completing his PhD in Southampton, he joined NOC a decade ago, where he has since developed a team focused on creating pioneering robotic solutions for ocean science.

Exploring NOC’s Autonomous Robotics Fleet

At NOC, Alex oversees a diverse fleet of approximately 40 vehicles, ranging from underwater gliders to robust remotely operated vehicles (ROVs). What sets NOC apart is its capability to design and build its own Autosub AUVs. This in-house expertise allows them to tailor the vehicles for specific scientific data collection, adapting to the unique challenges presented by oceanographic conditions.

Key Drivers in Underwater Robotics

When discussing the evolving needs in underwater robotics, Alex highlighted a critical driver: the need for persistence. This involves deploying vehicles that can operate autonomously for extended periods, often without the constant support of research ships. Extended operational capabilities free up traditional vessels to focus on tasks that require human intervention, thus optimizing resources in ocean research.

Alex also noted rising demand for data related to climate change, particularly the effects of melting glaciers and carbon cycles. Advances in technology have facilitated the inclusion of sensors that measure a range of variables, from pH levels to carbon chemistry, thus contributing to our understanding of these pressing environmental issues.

Technological Evolution in Operational Efficiency

When reflecting on the technological advancements that have impacted operational efficiency, Alex emphasized the importance of robust systems. The ability to deploy dependable technology is a consistent challenge that has seen significant improvements over the years. However, as systems become more stable, NOC is poised to harness new sensor technologies, including compact and powerful lab-on-chip options. These advancements offer the potential for comprehensive chemical analyses in deep water.

Additionally, AI and machine learning have begun playing significant roles in interpreting vast datasets generated by these vehicles. From detecting faults in AUVs to analyzing complex biological data, these technologies have become indispensable tools in modern marine research.

Memorable Missions and Achievements

One particularly notable mission Alex recounted involved the Autosub long-range vehicles, which were launched from Iceland as part of the NERC-funded BIO-Carbon Program. Though they faced challenges, one vehicle successfully navigated back to Scotland, gathering valuable data along the way. This mission not only showcased the capabilities of AUVs but also highlighted the innovative approaches employed to gather complex chemical measurements in various water layers.

The Future of Persistent AUV Operations

As the demand for persistent underwater operations grows, NOC is exploring two key strategies: hover-style vehicles that can recharge on the seabed, and extending battery life through efficient, low-power sensor deployment. These innovations aim to tackle challenges such as biofouling and corrosion, allowing AUVs to remain operational for months or even longer.

Final Thoughts

The work being done at the National Oceanography Centre is a testament to the potential of subsea robotics to transform our understanding of ocean science. Through the leadership of visionaries like Alex Phillips and the collaborative spirit of academia and industry, we are witnessing groundbreaking advancements that could redefine how we explore and understand the oceans.

For those interested in the details of this conversation, be sure to check out the full interview with Alex Phillips on Marine Technology TV.