Motivation Collision Avoidance – Inefficient airspace utilization – Increased air traffic...
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Transcript of Motivation Collision Avoidance – Inefficient airspace utilization – Increased air traffic...
![Page 1: Motivation Collision Avoidance – Inefficient airspace utilization – Increased air traffic workload – Use of obsolete technologies 2.](https://reader030.fdocuments.in/reader030/viewer/2022032708/56649e7f5503460f94b83973/html5/thumbnails/1.jpg)
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Motivation
• Collision Avoidance
– Inefficient airspace utilization– Increased air traffic workload– Use of obsolete technologies
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Requirements
• Increase flexibility of vehicle operations• Fly higher number of vehicles in smaller
airspace• Higher precision of flight plan and
accomplishments
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Agents aircraft auto-pilot(autonomous – independent of pilot)
• Prepare detailed flight plan for airspace• Execute the flight plan
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Deconfliction by Negotiation
• Zones:- Communication- Alert- Safety- Collision
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Negotiation Protocol
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Deconfliction by Negotiation
• Cooperative/non-cooperative deconfliction
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Collision Avoidance Mechanism
Head-on collision
Side Collision
Rear collision
Side collision
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A-Globe: Multi-Agent Platform
• Fast, lightweight, with mobility and inaccessibility support.
• Provides Geographical Information System-like service.
• Consumes limited amount of resources.• Does not support interoperability.
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ATC System Structure Overview
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Server Component
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Platform Component
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Flight Modeling
• Flight planning– Waypoints: navigational point used for rough
definition of the flight route; represents location and time interval of flight.
– Segment: portion of flight path between two waypoints.
– Elements: most basic parts of a flight plan (horizontal/vertical turns, spirals, warp elements).
• Simulation
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Flight plan, segments, elements
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Flight Path Planning
• Path Planning: create segments, fill segments with elements.
• Time Planning: adjust flight plan so that time of flight for each segment matches time interval defined in start and end waypoints.
• Avoiding no-flight zones: replace with flight path that bypasses no-flight zone.
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Avoiding no-flight zones
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Real Data Integration
• NASA: a mosaic of Landsat7 images, resolution of 50m/pixel used as underlying ortophoto map of the US.
• USGS: detailed vector shapes of 50 US state boundaries, 650 US airports, GPS coordinates, more than 26000 major US highway segments.
• GNIS: more than 24000 US populated places, GPS coordinates, more than 80 US power plants with GPS coordinates (no-flight zones).
• ATC flight data: airplanes including position, direction, rough flight plans (points in space through which the airplane is supposed to fly), detailed flight plans.
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Flight Visualization
• Real-time visio allows user to overview the entire simulation in a 2D/3D environment.
• CrystalSpace used – open-source 3D game engine.
• Written in C++ for efficiency and performance, using OpenGL graphics engine.
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23Real-time visualizer: 2D view
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24Real-time visualizer: 3D view
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25Remote client GUI Overview
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26Flight plans avoiding no-flight zones
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Conclusion
• The ATC prototype assumes all airplanes use the same deconfliction rules.
• Will be extended so that airplanes that detected future collisions would iterate through monotonic concession protocol (MCP).