DEVICE FOR PREVENTING COLLISION OF HELICOPTER WITH HIGH-VOLTAGE POWER LINES Russian patent published in 2010 - IPC G01S13/93 

FIELD: physics.

SUBSTANCE: device for preventing collision of a helicopter with high-voltage power lines has a nondirectional antenna, a receiver, four switches, two threshold units, three flip-flops, a tunable filter, an n-bit shift register, a k/n type detector, two AND circuits, a brightness indicator, two OR circuits, an audio indicator, a clock-pulse generator, a frequency divider, a one-bit counter, a logic unit, two delay units, a narrow-directional antenna, an information processing unit, an electric power line angular position indicator, a "turn away" instruction indicator and a unit for analysing the dynamics of execution of the "turn away" instruction by the pilot, connected in a certain way.

EFFECT: safer helicopter flying.

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