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Conflict detection and resolution using predicted aircraft trajectories

  • US 9,858,825 B2
  • Filed: 05/24/2013
  • Issued: 01/02/2018
  • Est. Priority Date: 05/25/2012
  • Status: Active Grant
First Claim
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1. A method of managing airspace through which a plurality of aircraft are flying, comprising:

  • receiving, from the plurality of aircraft, user preferred aircraft intent data that unambiguously defines corresponding user preferred trajectories of each of the plurality of aircraft;

    calling an initial global conflict detection procedure comprising;

    calculating, by a processor, the corresponding user preferred trajectories from the user preferred aircraft intent data;

    comparing the corresponding user preferred trajectories so as to identify one or more conflicts between trajectories to create a comparison; and

    using the comparison of the corresponding user preferred trajectories to identify conflicted aircraft and to place each conflicted aircraft into one of a plurality of conflict dependent networks such that each conflict dependent network contains a set of all aircraft in conflict with each other, either directly or indirectly, such that each conflicted aircraft can be a member of one conflict dependent network only;

    for each conflict dependent network, calling an initial conflict resolution procedure comprising;

    revising the user preferred aircraft intent data of one or more of the conflicted aircraft of a corresponding conflict dependent network to produce revised aircraft intent data defining a corresponding revised trajectory configured to remove-conflicts from within the corresponding conflict dependent network;

    sending the revised aircraft intent data to the corresponding conflicted aircraft; and

    commanding the corresponding conflicted aircraft to alter course to remove the conflicts.

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