FIELD: defensive structures and devices.
SUBSTANCE: invention relates to a method of detecting unmanned aerial vehicles carrying out an illegal flight over a secure facility. To detect unmanned aerial vehicles, a safety barrier is mounted along the perimeter or near the protected object, which is a plurality of sensors and configured to receive radio signals in the possible range of UAV control and/or UAV information reset, and one sensor is placed in the centre of the object. When detecting a radio signal for control and/or resetting information by the central sensor, as well as fixing its increase, the frequency of the detected signal is compared with signals of other sensors to determine the fact of the UAV approaching the object, as well as determining the direction of this approach.
EFFECT: higher security of protected facilities.
9 cl
