SEAPATH® 330+
THE ULTIMATE HEADING, ATTITUDE AND POSITIONING SENSOR
The Seapath 330+ product uses a state-of-the-art dual frequency GNSS receiver, inertial technology and processing algorithms to provide surveyors with the best possible accuracy in position, attitude and timing. The Seapath
330+ can be delivered complete with an RTK reference station and a UHF radio data link. For surveys where RTK
position accuracy is not required in real-time, the Seapath 330+ has the possibility to log raw satellite and IMU data
for post processing.
Integrated inertial/GNSS product
The Seapath 330+ offers the best possible combination of
GNSS signals and inertial measurements for demanding
operations in challenging environments. This Seapath product
includes the latest MRU generation, the new MRU 5+ MK-II,
providing 0.008° RMS roll and pitch accuracy. This accuracy is
achieved by the use of accurate linear accelometers and unique
MEMS type angular rate gyros.
The combination of GNSS signals and inertial data enables a
much better performance than each of the signals alone with a
high output data rate (up to 200 Hz), zero delay on output data,
data available in up to eight different monitoring points and a
total of sixteen configurable serial lines and Ethernet ports,
together with three analog channels.
Accuracy and reliability
The advanced Seapath navigation algorithms integrate the RTK
GNSS data with the inertial sensor data from the MRU 5+ MK-II.
This gives the Seapath 330+ unique advantages compared to
stand alone RTK products. The Seapath 330+ product’s highly
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 data.
System configuration
This Seapath product is a two-module solution with a Processing and an HMI Unit connected via Ethernet. The Processing
Unit runs all critical computations independent from user interface on the HMI Unit to ensure continuous and reliable operation. Multiple HMI Units can be connected to the same Processing Unit in a networked architecture. The HMI Units present the
vessel motion in a clear and easy-to-understand format.
The Seapath is operated through the operator software installed
on one or several HMI Units. This software is used for performance monitoring, configuration and troubleshooting of the
system.
Applications
By using standard DGPS/DGLONASS, Fugro XP2/G2 and
RTK corrections, the Seapath 330+ is a unique solution for
hydrographic surveying and dredging work demanding the most
comprehensive and accurate surveying data available.
FEATURES SEAPATH 330+
• 0.008° roll and pitch accuracy
• 2 cm heave accuracy by use of the PFreeHeave® algorithms
• Meets IHO special order requirements
• Robust against GNSS dropouts due to the inertial sensor
part of the product
• 120-channel dual frequency GPS/GLONASS receiver
• GNSS receiver compatible with GPS/GLONASS/Galileo/
Beidou
• Includes ionospheric compensation methods to reduce
Sunspot 24 cycle effects
• Fugro XP2/G2 corrections and RTK supported
• RTK corrections format RTCM and CMR supported
• Includes SBAS corrections (WAAS, EGNOS, MSAS, GAGAN)
• All data have the same time stamp and to an accuracy of
0.001 s to the actual measurement time
• Logging of raw satellite and IMU data possible
- Human Machine Interface
- Visualization of data
- System configuration
Additional HMI Unit
HMI Unit
Seapath 320
Seapath 320
Local Area Network (Ethernet)
Processing Unit
Optional
Seapath 320
SEATEX MRU
Motion Reference Unit
Made in Norway
ESC
MRU Data
ENTER
RTK reference station
GNSS signals
Fugro SeaSTAR XP/G2 service
GNSS corrections
TECHNICAL SPECIFICATIONS
PERFORMANCE
Heading accuracy
Roll and pitch accuracy
Scale factor error in roll, pitch, heading
0.04° RMS (4 m baseline)
0.065° RMS (2.5 m baseline)
0.008° RMS for ±5° amplitude
0.03 % RMS
Heave accuracy (real-time)
5 cm or 5 % whichever is
highest
Heave accuracy (delayed signal)
2 cm or 2 % whichever is
highest
Heave motion periods (real-time)
1 to 20 seconds
Heave motion periods (delayed signal) 1 to 50 seconds
Position accuracy DGNSS/GLONASS 0.5 m RMS or 1 m 95 % CEP
Position accuracy SBAS
0.5 m RMS or 1 m 95 % CEP
Position accuracy Fugro XP2/G2
0.1 m RMS or 0.2 m 95 % CEP
Position accuracy (X and Y)
Position accuracy (Z)
1 cm + 1 ppm RMS
2 cm + 1 ppm RMS
Velocity accuracy
0.03 m/s (RMS)
Range to RTK reference station
UHF radio frequencies
10 km
430 to 470 MHz
390 to 430 MHz (optional)
DATA OUTPUTS
Communication ports
8 serial RS-232/RS-422 lines
and 16 Ethernet UPD/IP ports
Data output interval
Programmable in 0.005-sec.
steps and 1PPS pulse
Data update rate
Up to 200 Hz
Analog output
3 user configurable channels,
+/- 10 Volt
1PPS signal accuracy
220 nsec
WEIGHT AND DIMENSIONS
Processing Unit
HMI Unit
Monitor
IMU
GNSS antenna
5.4 kg, 89 x 485 x 357 mm
3.8 kg, 44 x 485 x 330 mm
3.8 kg, 383 x 380 x 170 mm
2.4 kg, 140 x Ø105 mm
0.5 kg, 69 x 185 mm
POWER SPECIFICATIONS
Processing Unit
HMI Unit
Monitor
IMU
GNSS antenna
100 to 240 V AC, 75 W (max)
100 to 240 V AC, 40 W (max)
100 to 240 V AC, 23 W (max)
24 V DC from Processing Unit
5 V DC from Processing Unit
ENVIRONMENTAL SPECIFICATIONS
Operating temperature
Processing and HMI Unit
-15 to +55 ºC
Monitor
+5 to +40 °C
IMU
-5 to +55 °C
GNSS antenna
-40 to +85 °C
Humidity (enclosure protection)
Processing and HMI Unit
Monitor
IMU
GNSS antenna
Cables
Connectors
10 to 95 % rel. non condensing
(IP 21)
20 to 80 % rel. non condensing
(IP 21)
Hermetically sealed (IP 66)
Hermetically sealed (IP 66)
IP 67
With self-amalgamating tape
(IP 67)
Mechanical
Vibration
IEC 60945/EN 60945
Electromagnetic compatibility
Compliance to EMCD,
immunity/emission
IEC 60945/EN 60945
May 2016
PRODUCT SAFETY
Compliance to LVD, standard used IEC 60950-1/EN 60950-1
Specifications subject to change without any further notice.
KONGSBERG SEATEX AS
Switchboard: +47 73 54 55 00
Global support 24/7: +47 33 03 24 07
E-mail sales: km.seatex.sales@km.kongsberg.com
E-mail support: km.support.seatex@km.kongsberg.com
km.kongsberg.com/seatex
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