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SeaH™ Helideck Monitoring System

SeaH™ Helideck Monitoring System (HMS) provides accurate information on the prevailing weather and helideck motion to ensure effective flight planning and safe landings on offshore installations. Measurements are based on world-class reliable sensors designed specifically for offshore weather monitoring. The system gathers and processes information from the following sensors: ceilometer, barometer, humidity and temperature sensor, visibility sensor, helideck motion sensor (or MRU), wind sensor, GPS / GYRO, and optional: VHF, radar, CCTV camera. The set of sensors can be adjusted according to the customer needs. The color and operation mode of the repeater lights installed on the helideck is identical to that displayed on the HMS display and comprise blue, amber and red lights, steady burning or flashing.


Areas of use:

  • Oil platform / FPSO / FSO / TLP / drilling rig - floating and stationary;
  • Offshore wind farm and wind park;
Helideck Monitoring System Configuration  helideck-monitoring-system-configuration_9b


SeaH™ Helideck Monitoring System features:

Pre-Landing Mode Display
HMS Prelanding
Prior helicopter landing SeaH™ displays “Pre-landing” page on the Operator Display. System analyses Motion Severity Index (MSI), Wind Severity Index (WSI) and turns on accordingly blue / amber / red lights.
Repeater lights system HMS Repeater Lights
The color and operation mode of the repeater lights installed on the helideck is identical to that displayed on the HMS display and comprise blue, amber and red lights, steady burning or flashing.
MSI and WSI index HMS MSI
Real time calculation and historical graphs for Motion Severity Index (MSI), Wind Severity Index (WSI).

Recording and playback

Playback
The system assures synchronized VHF / Camera / Weather data recording and playback including weather, wave and helideck motion statistic information.

On-Deck Mode Display

HMS Ondeck
Prior helicopter takeoff SeaH™ displays “On-deck” page on the Operator Display. The system analyses Relative Wind Direction (RWD) and turns on accordingly flashing blue / amber / red lights.
Wind direction gauge HMS Wind Gauge
The system graphically presents heading of the offshore platform, helideck and helicopter heading along with relative wind direction.
RWD index HMS RWD
Real time calculation and historical graphs for Relative Wind Direction (RWD).
Day/night mode HMS Night
To ensure comfortable monitoring in different lighting conditions the operator can switch the display between day and night mode.
SeaH™ Helideck Monitoring System connection diagram

SeaH HMS connection diagram

Standards:

  • SeaH™ Helideck Monitoring System complies with CAP437 revision 9b 20 11 01 and Norwegian helideck regulations.
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