User's Manual

l
6
The Artemis microwave-based position reference system provides accurate positional data
to marine DP (dynamic positioning) control systems. It enables automated approach and
station keeping relative to a rig or platform, or to another vessel.
The standard Artemis system consists of:
• Two identical Antenna Units (or Sensors), user-configurable as a Mobile Station and a
Fixed Station.
• The Artemis Control PC, a Windows-based marine specification computer, running the
control software.
• Artemis Client PC(s), optional computers used where more than one installation of the
Artemis Dashboard software is required.
• Hand-held Operating Panel (or Pendant).
An alternative configuration - the Beacon system - involves the same components as the
standard system except for a Beacon Unit instead of a Fixed Station. A Beacon Unit does
not provide an Azimuth measurement.
Antenna Units
The Mobile Station is mounted on the DP-Equipped vessel, ideally at the top of the main
mast. The Fixed Station is installed on a fixed platform if absolute positioning is needed or
on a moving platform or structure to provide relative positioning.
Hand-held Operating Panel (Pendant)
A hand-held unit that can be connected to a station or Beacon unit to read and set system
parameters during installation. It can also be used to view positional data once the system
is in operation. This is an optional diagnostic aid.
System Overview
Artemis Control Software
The following applications run on the Artemis Control PC, usually mounted on the bridge
near to the controls of the vessel’s DP system:
• Manager – This Windows service running on the Artemis Control PC can be configured
to run automatically after the PC powers up. It provides a single point of control for an
Artemis sensor through which the other components communicate.
• Service Interface – Used for system installation and maintenance, it allows network
communications to be configured and parameters on an Artemis Station to be viewed and
set. It displays the state of connected Artemis Dashboard(s) and can be used to take basic
control of the station.
• Dashboard – Used to control and monitor normal system operation. Up to five instances
of the Dashboard can run simultaneously on the Control PC and Client PCs, but only one
of these can exercise control at any given time; the others can only be used to monitor the
system.
An Antenna Unit (Mobile or Fixed Station) An Operating Panel
Artemis Service Interface
Artemis Dashboard
Explosion-Proof Antenna Unit/Beacon
An antenna unit or beacon can be made safe for operation in hazardous zone 2 conditions
with the use of a pressurisation unit. This forces clean air into the housing of the antenna
unit or beacon to prevent the ingress of explosive or flammable gases that might otherwise
be ignited by electrical sparks. Contact Guidance Marine for details.