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A GENERAL VIEW OF GATEWAY PLATFORMS Daniel E. Frye Woods Hole Oceanographic Institution. GATEWAY PLATFORM.
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A GENERAL VIEW OF GATEWAY PLATFORMS Daniel E. Frye Woods Hole Oceanographic Institution
GATEWAY PLATFORM A deployable system that provides connectivity between submerged vehicles and sensors and people or equipment located at a distance. Navigation information is also provided by the Gateway, when needed.
Existing Gateway Concepts • Moored surface buoys • Subsurface moorings with occasional surface expressions (Pop-up moorings) • Surface drifters (unmoored) • Autonomous Underwater Vehicles with surfacing capability • Gliders (buoyancy driven AUVs)
A coastal observatory using acoustically-linked sensors and sensor platforms with telemetry gateway moorings.
Figure 7. Conceptual drawing showing the winch mooring in surfaced and stowed configurations and the long-term moorings in an unprotected coastal environment.
General Gateway Applications • Fixed sensor array to operator data link (one way or two way) • AUVs or gliders to operator data link and navigation node (one way or two way) • Submarine to ship or shore (or remote platform) communications link (one way or two way)
PLATFORM AND SENSOR STANDARDS NEEDED TO DEVELOP A SYSTEM CONCEPT • Controller/data storage— • Programming language • Power system— • Voltage • Current limit • Chemistry • Mooring/buoy/vehicular systems— • Weight • Volume • Geometry • Maximum depth • Electro-mechanical interfaces • Deployment system — • Configuration/size • Deployment sequence/procedure • Sensors — • Controller interface • Power system interface • Wiring • Data format
PLATFORM AND SENSOR REQUIREMENTS NEEDED TO DEVELOP A SYSTEM CONCEPT • Controller/data storage— • Memory capacity • Processing power • Number of ports • Power usage • Power system— • Power density and delivery limits • Storage life • Volume • Mooring/buoy/vehicular systems— • Size • Weight • Duration • Depth • Expendable/Re-useable • Deployment system — • Air-launched • Sub-launched • Ship-launched • Bottom-deployed • Size,weight • Sensors — • Life • Type • Sampling rate • Accuracy