Graven Automation

The HAIN Subsea 7000 with co-located DVL is a fully integrated inertial navigation system for subsea vehicles. The system can be aided from acoustic positioning systems, doppler velocity and pressure sensors. The integrated solution designed for operation on an AUV, ROV, towed fish and any other subsea vehicle down to 7000 meters water depth, consists of an inertial measurement unit, doppler velocity log and onboard navigation processing. The HAIN unit receives the subsea vehicle position aid from an SSBL system on a surface vessel or a sparse LBL system on the subsea vehicle. In addition, to further improve position accuracy, the co-located DVL and pressure sensor 7000m rated can be used as aids to the inertial solution.