Sonardyne Asia’s marine robotics technology has been selected to assist in developing a new autonomous underwater vehicle (AUV) to navigate in offshore operations.

The new AUV is being developed as part of a joint-research programme between PTT Exploration and Production Public Company (PTTEP) and Kasetsart University (KU) in Bangkok, Thailand.

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PTTEP-KU placed the order for a Sprint inertial navigation system (INS) and Syrinx Doppler Velocity Log (DVL), which will be integrated on a 4,000m-rated, long-endurance AUV. The AUV can be used to detect oil spills and is also applicable for pipeline maintenance.

Sonardyne Singapore regional sales manager Daniel Tan said: “The marine robotics team at Kasetsart is designing a vehicle that will be capable of conducting pipeline inspections over distances of 100km without any external position aiding.

“Reliable, survey-grade navigation data will be essential to the success of its missions and this is where our all-in-one acoustically-aided INS solution comes in.

“Sprint and Syrinx are proven to deliver class-leading performance, as good as a fraction of a metre over many kilometres travelled.”

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“The marine robotics team is designing a vehicle that will be capable of conducting pipeline inspections over distances of 100km without any external position aiding.”

The Sprint technology uses data sources including acoustics, DVL and pressure sensors to improve the accuracy and integrity of subsea vehicle positioning at long distances.

With a capacity to operate at altitudes up to 50% higher than conventional 600kHz DVLs, Syrinx DVL provides tightly integrated beam-level aiding for Sprint even when one or two DVL beams are unavailable.

KU represents the first academic institution in the region to own Sonardyne’s new Sprint, which supports dual gyrocompass and INS operating modes.

These features will enable pilots and survey teams to deploy its navigation output simultaneously.

Image: The tight integration between Sonardyne’s Syrinx DVL and SPRINT INS will provide class-leading accuracy, precision and integrity for KU’s long range AUV. Photo: courtesy of Sonardyne.