Simulation


Overview


Example of Ship Sim 3 displayH Scientific's simulators are primarily designed to provide a synthetic environment for testing control systems.

The simulator family includes:

  • AUV Sim 2 - generic underwater vehicle simulation,
  • Ship Sim 3 - supports IEC 62065, ISO 16329 and ISO 11674 standards for autopilot accreditation,
  • Airship Sim 2 - generic airship simulation.

All of these simulators provide extensive infrastructure:

  • Environment modelling including the effects of turbulence; sea bed, surface waves and atmospheric pressure, temperature and density variation with altitude.
  • Suites of sensors including multiple GPS, gyrocompasses, inertial sensors, pitot/static sensors, fluxgate and Doppler velocity sensors and many more.
  • Each sensor is capable of transmitting data via serial ports, using the appropriate protocols, for connection to chart plotters and other displays, as well as an external control system. (link to Comms interface manager).
  • Where appropriate (e.g. pitot/static and rate gyro devices, direct analogue outputs are available via H Scientific's Genie® analogue interface modules.
  • A data logging facility which outputs data to industray standard MAT format.
  • A fully user-configurable console with displays including compass tape, dials, digital and LED-style readouts, and control sliders.
  • External Input support via serial messages or by direct analogue connection.
  • Joystick support via H Scientific's proprietary Genie® joystick interface module.
  • Sea trials datalogging: the same system may be used for logging real data from sea trials.

Ship Sim 3 also offers the ability to accept third party physics models. This comprises DLL interface source code, with function calls to be filled in by the user and compiled under Microsoft .NET® framework. Similar interfaces may be provided for AUV Sim and Airship Sim if required.

AUV Sim and Airship Sim include the ability to build the vehicle from a menu of components such as ducted fan thrusters, control surfaces and main body elements. A powerful machinery allocation system allows each thruster to be attached to a control channel which may be connected to a slider and to the control system. Each actuator is user-programmed with servo rates and limits.

Ship Sim 2 offers a full 3D external view and is suited for training applications.

 

 

Models


H Scientific have developed a suite of simulation products for marine, subsea and airbourne environments. The simulators vary in application and in physical models, but share common functionality in a number of areas, including: