Patent ID: 8502730

Claim:
A method for detecting a bird or a flying object level with a single wind turbine, in which radio-wave means are used for detecting at least one bird or other flying object, in the form of at least one radar, the method comprising the following steps: inclining each radar on its horizontal axis so that the vertical height of the wave beam transmitted in the axis of said wind turbine by each radar covers all or part of a sphere formed by the theoretical sweeping volume of the rotating blades of the wind turbine; converting the resultant two-dimensional analog image of each radar into an independent digital image for each radar; applying to each digital image of each radar, on the one hand, an outer two-dimensional safety zone the center of which is positioned in the center of the sphere and the dimensions of which are greater than those of said sphere and, on the other hand, an inner safety zone with dimensions smaller than or equal to those of said sphere, creating a safety volume for each radar; independently positioning each radar at a distance from the wind turbine so that the safety zones of each radar complement one another according to the overall safety zone formed by the sum of the respective safety zones of each radar; and taking an action when there is detection within one or other of said safety zones.