Patent ID: 9257051
Filing Date: 2016-02-09
CPC Classification: B64C,G01S,G05D,G08G

Claim Text:
1. A method enabling an aerial drone not having a TCAS system to avoid an intruder aircraft, the method is performed by a flight control system coupled with a data analysis system performing the following steps: acquiring the position of the intruder aircraft in order to determine the distance between the aerial drone and the intruder aircraft; measuring the angular speed of the intruder aircraft in a horizontal plane; determining whether the intruder aircraft is fitted with a TCAS system, and, if so, receiving a resolution advisory transmitted by the TCAS of the intruder aircraft; determining the avoidance path after receiving the resolution advisory, wherein the step of determining an avoidance path includes a prior operation of analyzing the resolution advisory transmitted by the TCAS of the intruder aircraft in such a manner that if the advisory includes an order for the intruder aircraft to climb, the avoidance path comprises descent, and otherwise comprises a turn in a horizontal plane; and the aerial drone performing an avoidance maneuver according to the determined avoidance path to avoid collision with the intruder aircraft.