DEVICE TO PREVENT COLLISIONS OF HELICOPTER WITH HIGH-VOLTAGE POWER TRANSMISSION LINES Russian patent published in 2012 - IPC G01S13/93 

FIELD: radio engineering.

SUBSTANCE: device to prevent helicopter collisions with high-voltage power transmission lines, comprises an antenna connected at a receiver's input, n narrow-band filters and n threshold units, a detector of k/n type, a sound indicator, a circuit OR, a brightness indicator, besides, the receiver's output is connected to inputs of n narrow-band filters, outputs of which are connected to inputs of n threshold units, outputs of which are connected to inputs of the detector of k/n type, the output of which is connected to the input of the sound indicator and with the first input of the circuit OR, m-1 inputs of which are connected to the outputs of the detector of k/n type of m-1 devices of helicopter collision prevention, arranged on the same helicopter, at the same time antennas of devices for prevention of helicopter collisions arranged on the helicopter are aligned in different directions, the output of the circuit OR is connected to the input of the brightness indicator.

EFFECT: reduced time for detection of signals of a high-voltage power transmission line and simplified arrangement of the device.

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