Seapath 130-R; Product Description - Kongsberg Seapath 130-R Series Operator's Manual

Seapath 130-R series
2 Seapath 130–R
2.1

Product description

The Seapath 130 is developed specifically for hydrographic surveying where
high precision heading, position, roll, pitch, heave and timing are critical
measurements. The product combines state-of-the-art dual frequency GNSS receivers
(GPS/GLO/GAL/BDS), inertial technology and processing algorithms in a compact and
portable package.
The main component is the sensor unit with the motherboard, GNSS antennas and
receivers. The sensor unit is to be mounted on top of the vessel mast or pole. On top of
the transducer, the inertial sensor of type MGC R2 and R3 is mounted within a subsea
bottle. The Seapath operator software is installed on a connected PC for configuration
and monitoring. All the components are connected through a spider cable with MGC
connection, three configurable serial lines, DGNSS (Differential GNSS) correction input,
1PPS output, network communication and power inlet.
The latest Seapath software includes Automatic Online Calibration (AOC) that
significantly improves the roll and pitch accuracy. With the AOC functionality
recalibration of the IMU is now longer required if the vessel is in motion with heading
changes (not stationary vessels).
The Seapath 130–R series is delivered in the following and improved product range:
• with MGC R2 to 0.008° roll and pitch accuracy
Seapath 130–R2
• with MGC R3 to 0.007° roll and pitch accuracy
Seapath 130–R3
The advanced Seapath navigation algorithms integrate the RTK GNSS data with
the inertial sensor data. This gives the Seapath 130 unique advantages compared to
stand alone RTK products. The Seapath product's accurate roll, pitch and heading
measurements allow the RTK antenna position to be referenced to any point on the
vessel where accurate position and velocity are required. All the data from Seapath have
the same time stamp and the output is in real-time. Subdecimetre position accuracy can
be achieved through download of satellite orbit and clock data from internet and by
post processing of satellite and IMU (Inertial Measurement Unit) data. The Seapath is
robust against GNSS dropouts by using the inertial sensor for dead reckoning navigation
in order to provide position, velocity and also heading measurements when GNSS is
not available.
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M340-54/3.0