Ship Performance Monitor

The Mega-Guard Ship Performance Monitor measures and displays the actual fuel consumption with the actual power delivered





















The Mega-Guard Ship Performance Monitor (SPM) measures and displays fuel consumption, power, speed and distance travelled on an Operator Workstation. In addition, Mega-Guard SPM calculates and displays time and trip based performance data in order to provide a detailed overview to the operator. The ship operator is able to make a judgement with Mega-Guard SPM regarding increase of hull resistance over time in order to plan hull maintenance intervals by comparing data of a recent trip to data of previous trips. In addition, the Ship Performance Monitor helps the operator to realize IMO legislation SEEMP (Ship Energy Efficiency Management Plan). The  Mega-Guard SPM can be supplied as an integrated part of the Mega-Guard Vessel Management System or as a stand-alone system. 

The Ship Performance Monitor has the following features for main engines, diesel generators and/or boilers:

  • Continuous and time based fuel consumption, torque, power, speed and distance measurement
  • Calculation of absolute and normalized fuel consumption
  • Averaging fuel consumption e.g. of the last 24 hours
  • Fuel consumption per NM and per trip
  • Remaining days fuel
  • History data recording and display capability
  • History data retrieval via USB- or Ethernet file transfer

Measurement values

The Ship Performance Monitor makes the calculation, display and storage of data based upon data as measured by sensors.

  • Fuel consumption : measured by a fuel flow meter and compensated for temperature
  • Main engine power : measured by shaft torque and power meter
  • Generator power : measured by the supplied electrical power for each generator
  • Speed : measured by GPS (speed over ground) and/or by speed log (speed through water)
  • Distance : measured by GPS

The Mega-Guard Ship Performance Monitor interfaces these sensors via a Ship Performance Controller or through the Mega-Guard Vessel Management System. The Ship Performance Controller is available with hard wired inputs, serial communication lines (NMEA-0183 or MODBUS) and Ethernet interfaces.


Scope of supply

A typical stand-alone Mega-Guard SPM consist of:

  • Operator Workstation with TFT size ranging from 10”to 55”
  • Ship Performance Controller
  • Main engine shaft torque meter
  • Fuel oil flow meters
  • Interface to GPS and speed log

The Operator Workstation and the Ship Performance Controller can be omitted in case the Mega-Guard SPM is integrated in Mega-Guard VMS.




Sales and service

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Contact information

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

+31 (0)71 5255 353

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