APOS Survey

Surveyor's independent Operator Station for HiPAP

APOS Survey - Surveyor's independent Operator Station for HiPAP, APOS Survey has been developed to provide a cost effective solution for subsea survey and construction operations, making it possible for the surveyor to utilise a vessel's HiPAP system. Acoustic interrogations are interleaved or run simultaneously with the DP system updates, without making changes to the vessel’s APOS software or installation parameters.


  • Subsea
  • Offshore
  • Hydroacoustics (HIPAP)
  • Inertial measurement unit (IMU)
  • Transponder
  • Acoustic telemetry
  • Hydroacoustic positioning
  • Inertial measurement unit

Seamless Integration and Enhanced Flexibility

APOS Survey offers full LBL and SSBL, quicker mobilisation times and is designed for both permanent and temporary installation on vessels. The software communicates directly with the HiPAP transceiver, enabling the surveyor to operate independently of the bridge. The software safely integrates into the vessels HiPAP system through a high speed, optically-isolated, serial connection to maintain independence from the vessel's Dynamic Positioning (DP) network, and removes restrictions normally associated with operating a HiPAP system for subsea survey purposes.

Advanced Operational Capabilities

The surveyor can interface local survey grade sensors, IMU, GYRO and GNNS, set up lever arms and load velocity profiles independently of the vessel, unlocking the full potential of HiPAP. The cPAP LBL transceiver for ROV positioning and portable HiPAP transceivers are easily interfaced, providing flexibility for a full range of operations. Both the vessels APOS and APOS Survey can compute position off the same SSBL transponders with independent calculation. HiPAP transducer alignment for both the vessel and APOS Survey system can be run simultaneously.

Optimized Survey Functionality

APOS Survey OS version 6 or later allows to select which of the vessels HiPAP transducers are available for survey. The opto-isolated serial interface ensures a secure connection to the vessel’s HiPAP. It is possible to use vessels or local survey sensors such as GNSS MRU, Gyro. Configuration of lever arms and offsets are done independent of the ship. Moreover, the system includes Cymbal digital acoustics, capable of over 500 channels, and a variety of positioning modes including SSBL Fast Track, LBL, and Sparse LBL. Post-calibration and alignment functionalities such as SSBL Alignment and LBL boxin are also supported.

Key features

  • APOS Survey offers:
  • APOS Survey OS version 6 or later
  • Opto isolated serial interface for secure connection to the vessel’s HiPAP
  • Integration with vessels or local survey sensors (GNSS MRU, Gyro)
  • Configuration of lever arms and offsets independent of the vessel
  • Cymbal digital acoustics (500+ channels)
  • Multiple positioning modes: SSBL Fast Track, LBL & Sparse LBL
  • SSBL Alignment and LBL boxin calibration
  • Blue Marble Geodetic Library
  • Interfaces to Subsea HAIN and cPAP LBL ROV Transceiver
  • Interface for ROV pressure and sound velocity sensors
  • Support for industry standard and proprietary NMEA telegrams to HiPAP

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