CAT ROT for Marine
Trelleborg’s CAT ROT is a small and compact pilot unit primarily designed to connect to a ship’s Automatic Identification System (AIS) pilot plug and transmit data via Wi-Fi to the Pilot’s tablet / notebook.
AIS is primarily intended for information, but not navigation. The AIS data format available from the pilot plug does not provide sufficient resolution in heading, nor in rate of turn. These parameters is, however, vital from a navigational perspective. In particular, if quality predictions are of the essence.
The CAT ROT is designed to overcome the shortcomings of the AIS pilot plug data format by generating an accurate real time rate of turn and providing the missing decimal readings to the heading data via an integrated rate sensor, intelligent processing and advanced Kalman filter integrated into the unit. All the data collected are transmitted to the pilot’s display via Wi-Fi connection, which ensures a stable long range.

CAT I for marine
Trelleborg’s CAT I supplements our CAT ROT with highly accurate speed measurements and independent GNSS positioning.
A ship’s AIS data can be compromised due to the quality of the ship’s instruments or human errors. In order to ensure the most reliable data for piloting, our CAT I provides GNSS positioning, which is independent from the ship’s instruments.
Our CAT I is capable of receiving all major GNSS types depending on the geographic coverage of GNSS as well as available SBAS systems.
CAT ROT / CAT I combination provides :
CAT ROT | CAT I |
---|---|
Heading with decimal degrees | Speed 1 cm/sec (RMS) |
ROT < 0.5 deg | Position (GPS/GLONASS/SBAS) acc. <0.6 m (RMS) |
AIS targets |
First row is a table header Preview
How to use it?
Using the Table menu set the desired size of the table.
Enter the table data into the table :
select and copy (Ctrl+C) a table from the spreadsheet (e.g. Google Docs, LibreOffice Calc, webpage) and paste it into our editor – click a cell and press Ctrl+V or just double click any cell to start editing it’s contents – Tab and Arrow keys can be used to navigate table cells
Adjust text alignment and table borders using the options from the menu and using the toolbar buttons – formatting is applied to all the selected cells.
Click “Generate” button to see the generated table’s HTML source code — select it and then Copy & Paste to your website’s source.
Specification and Performance Data
2. Navigation processor.
3. Intelligent filtering.
4. Decimal degree on heading.
5. Reliable, real time ROT.
6. AIS targets.
7. Reduced weight.
8. Pocket size.
9. Low power consumption.
10. USB charge.
11. Autopolarity conversion (APC).
12. Access point functionality (Infrastructure W LAN).
13. IP65 Ingress Protection Marking iaw. IEC standard 60529.
14. Magnets in bottom plate for easy mounting on steel structure.
SPECIFICATION | CAT ROT | CAT I |
Weight | 330 g | 410 g |
Dimension | 138 x 100 x 25 mm | 138 x 100 x 25 mm |
Heading resolution | 0.1 deg | – |
ROT | <0.5 deg/min | – |
Integrated rate sensor | Yes | – |
Charge time | 5 hours | 5 hours |
Battery capacity | 18 hours, Li lon | 14 hours, Li lon |
GNSS | L1 GPS w. SBAS EGNOS, WAAS | L1 GPS / GLONASS w. SBAS, BEIDOU prepared |
Wi-Fi link to pilot’s display (connection to multiple displays allowed) | Yes | Yes |
Wi-Fi range | 200m line of sight | 200m line of sight |
USB charge | Yes | Yes |
AIS targets | from ship’s AIS | – |
Speed accuracy | from ship’s instruments | from ship’s instruments |
Position accuracy w/ SBAS | <3.0m (RMS) | <0.6m (RMS) |
Option for ship’s shore link GPRS or (UMTS) | Via pilot’s tablet/note book | Via pilot tablet/note book |
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