Embedded free flight obstacle avoidance system
First Claim
1. A method for free flight obstacle avoidance, the method comprising the steps of:
- providing a ground collision avoidance module and an air collision avoidance module;
providing an obstacle avoidance dispatcher and resolver module;
routing ground collision solution data from the ground collision avoidance module to the obstacle avoidance dispatcher and resolver module;
routing air collision solution data from the air collision avoidance module to the obstacle avoidance dispatcher and resolver module;
filtering the ground collision solution data and the air collision solution data;
commanding the ground collision avoidance module to validate the ground collision solution data and commanding the air collision avoidance module to validate the air collision solution data;
providing feedback from the obstacle avoidance dispatcher and resolver module with the ground collision solution data and the air collision solution data to the ground collision avoidance module and the air collision avoidance module for evaluation; and
generating a final obstacle avoidance solution from the obstacle avoidance dispatcher and resolver module.
1 Assignment
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Abstract
A free flight obstacle avoidance system (OAS) is a commanded obstacle resolution feedback system. The system employs insertion of hybridized elements to the existing designs of Adaptive Ground Collision Avoidance Systems and Midair Collision Avoidance Systems along with a newly design module, the obstacle avoidance dispatcher and resolver, to provide a coherent obstacle resolution. The system is capable of filtering data produced by the hybrid ground collision avoidance module and the hybrid air collision avoidance module, inserting evaluating solution status and command directives before routing avoidance data to hybrid modules for validation. The dispatcher and resolver module determines the final obstacle resolution to generate avoidance control guidance and appropriate warnings clearly indicated obstacle situation and obstacle avoidance maneuvers to the flight crew. In addition to the avoidance capabilities, the system also provides extended functions of terrain following guidance and space separation warnings.
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Citations
21 Claims
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1. A method for free flight obstacle avoidance, the method comprising the steps of:
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providing a ground collision avoidance module and an air collision avoidance module;
providing an obstacle avoidance dispatcher and resolver module;
routing ground collision solution data from the ground collision avoidance module to the obstacle avoidance dispatcher and resolver module;
routing air collision solution data from the air collision avoidance module to the obstacle avoidance dispatcher and resolver module;
filtering the ground collision solution data and the air collision solution data;
commanding the ground collision avoidance module to validate the ground collision solution data and commanding the air collision avoidance module to validate the air collision solution data;
providing feedback from the obstacle avoidance dispatcher and resolver module with the ground collision solution data and the air collision solution data to the ground collision avoidance module and the air collision avoidance module for evaluation; and
generating a final obstacle avoidance solution from the obstacle avoidance dispatcher and resolver module. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A free flight obstacle avoidance system for an aircraft comprising a ground collision avoidance module and an air collision avoidance module, the apparatus comprising:
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an obstacle avoidance dispatcher and resolver module;
a means for routing ground collision solution data from the ground collision avoidance module to the obstacle avoidance dispatcher and resolver module;
a means for routing air collision solution data from the air collision avoidance module to the obstacle avoidance dispatcher and resolver module;
a filter for filtering the ground collision solution data and the air collision solution data;
a means for commanding the ground collision avoidance module to validate the ground collision solution data and a means for commanding the air collision avoidance module to validate the air collision solution data;
a feedback loop from the obstacle avoidance dispatcher and resolver module to the ground collision avoidance module and the air collision avoidance module for sharing the ground collision solution data and the air collision solution data; and
a means for generating a final obstacle avoidance solution from the obstacle avoidance dispatcher and resolver module. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification