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Method for transmitting flight parameters from a leading aircraft to an intruding aircraft

  • US 10,319,238 B2
  • Filed: 04/19/2018
  • Issued: 06/11/2019
  • Est. Priority Date: 04/24/2017
  • Status: Active Grant
First Claim
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1. A method for transmitting flight parameters from a leading aircraft to at least one intruding aircraft, each aircraft comprising:

  • a collision avoidance system configured to detect probabilities of collisions with other aircraft flying within a surveillance volume distributed around the aircraft, said system comprising an interrogator, and a transponder connected to an antenna;

    flight management system collecting the flight parameters of the aircraft, the collision avoidance system being connected to the flight management system;

    wherein the method comprises;

    interrogation, in which the interrogator of the intruding aircraft transmits an interrogation signal comprising a request for at least one flight parameter including at least a weight of the leading aircraft;

    reception, in which the transponder of the leading aircraft receives, via the antenna, the interrogation signal transmitted by the interrogator of the intruding aircraft;

    determination, in which the transponder of the leading aircraft;

    in an analysis substep, analyses the spectrum of the interrogation signal received and determines the power of said signal;

    in a comparison substep, compares the power of the interrogation signal received to a threshold power; and

    in a surveillance and determination substep, determines that the intruding aircraft is eligible to receive the at least one flight parameter requested if the power of the interrogation signal is greater than or equal to the threshold power, and determines that the intruding aircraft is ineligible to receive the at least one flight parameter otherwise;

    transmission, in which the transponder of the leading aircraft sends a response signal to the interrogator of an eligible intruding aircraft in response to the interrogation signal, the response signal containing the at least one flight parameter of the leading aircraft requested by the intruding aircraft in the interrogation step, an ineligible intruding aircraft on the contrary not receiving any flight parameter from the leading aircraft in response to its request.

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