Integrated Navigation System

The Mega-Guard INS integrates all bridge equipment and complies with the one man integrated bridge philosophy


The Mega-Guard Integrated Navigation System (INS) is an advanced system for perfect navigation for ships. Mega-Guard INS is a modular system which can be tailor made based upon ship's navigation requirements. Both IMO compliant and non IMO compliant variants are available to suit all ship navigation applications. The Mega-Guard Integrated
Navigation System is based upon a minimum of  three multi-function Operator Workstations. Mega-Guard INS integrates all bridge navigation equipment and presents the data in an uniform way on the  multi-function Operator Workstations.


On each Operator Workstation the following functions are available:

  • ARPA Radar
  • ECDIS or ECS
  • Conning
  • Vessel Management System (option)
  • Central Alert Management  (option)

Mega-Guard INS can be easily extended with the following independent Mega-Guard navigation products:

  • Heading Control System
  • Propulsion Control System
  • Dynamic Positioning System
  • BNWAS Watch Alarm System
  • Navigation Light Control
  • Wiper Control System

The Mega-Guard Heading Control System includes an independent Steering Control System as well. Additional functions such as control of horn, searchlight, anchor and others can be implemented with Navigation Operator Panels.

In addition, Mega-Guard INS can also be integrated with  Mega-Guard automation and electric propulsion products:

  • Vessel Management System
  • Power Management System
  • Fire Alarm System
  • CCTV Video Distribution
  • Ship Performance Monitor
  • Fleet Management System     
  • Energy Management System
  • Electric Propulsion Motor
  • Electric Steerable POD
  • High Power Inverter
  • DC Bus Generator
  • Electric Energy Storage
  • Electric FIN Stabilizer     



System lay-out and operation

A typical Mega-Guard INS is built-up with the following main components:

  • Operator Workstations
  • Navigation sensors and Navigation Operator Panels

A redundant Ethernet network inter-connects all components. Mega-Guard INS is in most cases extended with a Mega-Guard Heading Control System and Mega-Guard Vessel Management System as a minimum. Mega-Guard INS supports optionally Track Control and/or Cruise Control modes. In addition, CAM functionality in compliance with IMO can be added for an uniform presentation and handling of alarm and alerts.

Operator Workstations are equipped with touchscreen and an integrated marine personal computer with high performance CPU (HP type) and Windows 7 or 10 embedded operating system. Solid state disk is applied and the Operator Workstations are available in high definition touchscreen sizes ranging from 18.5”to 86”. 



Navigation sensors

TThe following navigation sensors are typically interfaced to Mega-Guard INS:

  • X and S Band Radar
  • Gyro and/or Compass GPS
  • DGPS
  • Speed
  • Depth
  • Wind
  • AIS
  • Navtex
  • VDR

The navigation sensors are of black box type and all NMEA data from the sensors is made available on the redundant Ethernet network. Operator Workstations and Navigation Operator Panels can make use of this data as these are connected to the redundant Ethernet network. Navigation Operator Panels can be installed to reach independent and continuous indication of rudder angle, heading, position, speed, depth and wind in order to fulfill customer and/or IMO requirements. A Navigation Operator Panel is equipped with a 5.7” or 8" touchscreen, with full glass or metal front for intuitive operation and monitoring.





IMO and non IMO Integrated Navigation System

The Mega-Guard INS integrates a radar transceiver with corresponding software from either Raytheon (IMO compliant) or Furuno (non IMO compliant). The radar transceivers from both Raytheon and Furuno are upmast configurations with direct connection to the redundant Ethernet network.













Market segments

The INS Integrated Navigation System is applied in all type of ships. Four market segments are distinguished:

  • Commercial ships   ; IMO version with Raytheon core
  • Mega yachts   ; IMO version with Raytheon core
  • Yachts and non IMO ships   ; Non IMO version with Furuno core
  • Navy ships   ; IMO version with Raytheon core and WECDIS

INS Workstations and Operator Panels for mega yachts are delivered with highly esthetic glass fronts and for commercial ships a metal front with integrated pushbuttons is applied. Navy ships require a more robust INS with higher shock and vibration resistance. In addition, navy ships may require added functionality such as WECDIS.



Trackpad and Trackball

Workstations can be operated with touchscreen. In addition to this two types of input devices are available: a Trackpad and Trackball Operator Panel. The Trackpad Panel offers a large trackpad for accurate and easy selection of the required function on the Workstation. The Trackball Panel is equipped with a trackball
for function selection and a keypad is also integrated in this panel.


















Mounting & dimensions













































Sales and service

View a list of our worldwide sales and service network.

Contact information

Praxis Automation Technology
Zijldijk 24A,
2352 AB Leiderdorp
The Netherlands

+31 (0)71 5255 353

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