Boxfish Robotics is advancing the capabilities of underwater exploration with its hovering Autonomous Underwater Vehicles (AUVs). Find out more > >
Unlike traditional Remotely Operated Vehicles (ROVs), which rely on tethers, these tetherless systems use acoustic communication and advanced sensor integration to operate independently in challenging subsea environments.
Underwater navigation presents unique challenges, particularly due to the absence of GPS signals and limited visibility. To overcome these, Boxfish Autonomous Underwater Vehicles employ a hybrid navigation system that integrates acoustic positioning, inertial measurement, and Doppler velocity sensing. A key component is the Ultra-Short Baseline (USBL) system, which provides position data by measuring acoustic signal travel times. This is supported by Doppler Velocity Logs (DVLs), which measure velocity over the seabed, aiding in accurate dead reckoning and providing altitude data for collision avoidance.
The Inertial Measurement Unit (IMU) delivers acceleration, angular velocity, and compass heading, while high-precision depth sensors ensure vertical positioning accuracy. Surface GNSS data is transmitted acoustically to the AUVs, enhancing overall positional awareness. Stereo cameras and multibeam imaging sonar complement these systems for obstacle detection and environmental mapping.
Boxfish’s SafePath Planner software streamlines mission planning with an intuitive interface, allowing users to define waypoints, configure sensors, and manage mission parameters. This ensures smooth coordination between all navigation instruments for reliable and autonomous operation.
Tetherless AUVs offer distinct advantages, including greater maneuverability, the ability to operate in deeper waters, and reduced risk of entanglement. Their capacity for long-duration missions and detailed imaging makes them ideal for a variety of applications such as photogrammetry, marine habitat monitoring, infrastructure inspection, and scientific research.
Boxfish Robotics’ integrated navigation approach enables its AUVs to operate with remarkable precision, setting a new standard for autonomous underwater missions in complex and dynamic environments.
