S.I.T has just implemented Bird Collision Avoidance System for Riyadh Airport. The plan is to continue on most of Saudi Arabian Airports on 2020.
The present invention is directed to a bird collision avoidance system (100, 200), wherein the bird collision avoidance system (100, 200) is installed on an aircraft (102) and comprises a bird detection unit (104) and an associated bird repelling unit (110, 206), wherein, the bird repelling unit (110, 206) comprises at least one sound emitter to generate a sound signal having a variable frequency, focused beam (114) pattern which is directed along a projected flight path of the aircraft (102). The advantage of using sound signal having a focused beam pattern is that the beam can be focused substantially directly at a bird in the projected flight path of the aircraft and can be used to repel the bird away from the projected flight path of the aircraft. By focusing the beam only at the bird in the projected flight path of the aircraft, other birds in the vicinity but not in the projected flight path of the aircraft will not hear the sound signal. A modulated ultrasound signal may be used as the sound signal having a focused beam pattern. The bird collision avoidance system may also be mounted on wind turbines.
