Featured Product – C-PINS

Featured Product – C-PINS

Subsea Precise Inertial Navigation System
C-PINS is a survey tool specifically designed to provide precise positioning and navigation for most offshore subsea marine construction operations including:

• Jumper and Spoolpiece Metrologies
• Pipeline Out-of-Straightness surveys
• Buoy Setting for Well Installation
• Structure (manifold, PLET, PLEM, etc) installations
• Pipeline and Umbilical Installation
• USBL smoothing, Sparse LBL
• Decommissioning

C-PINS delivers the same precision as conventional acoustic underwater positioning systems, but consumes much less spread time for deployment, calibration and operations.

While developing the C-PINS, Zupt has focused on solving specific limitations that we believe exist within other subsea aided inertial systems:

• Tightly coupled LBL observations allow dynamic use of lines of position (LoPs) or very sparse LBL
• LBL time of validity (tov) is ensured through direct sampling of LBL communications
• DVL is coupled at the beam level for a more reliable solution.
• Unlike other systems, USBL is used to aid the inertial system – not the other way around.
• Navigation processing is on the vehicle which significantly reduces issues due to slip ring outages and bandwidth demands. We just need serial communications to the surface.
• Our IMUs are not “one size fits all.” We select specific IMU’s to be installed in each C-PINS system based on our customers’ error model requirements.