Remote passive optical-electronic detector of moving ground vehicles

Abstract

FIELD: control systems for road transport.SUBSTANCE: remote passive optoelectronic detector of moving ground vehicles comprises a series-connected narrow-field optical system, a mask-raster, a pulse burst detector and pulse shaper, a photodiode, a resistor, a bandpass filter, an amplifier and a zero-crossing detector. The output of the mask-raster is optically connected to the optical input of the photodiode, the anode of which is connected to the common wire, and the cathode is connected to the output of the resistor. The resistor input is connected to an external DC voltage source + U, and the photodiode and resistor form a voltage divider. The cathode of the photodiode is also connected to the input of a bandpass filter, the output of which is connected to the input of an amplifier, the output of which is connected to the input of a zero-crossing detector, the output of which is connected to the input of a pulse burst detector.EFFECT: expansion of the range of values of external illumination of the earth's surface, within which the reliable operation of the vehicle detector is ensured.1 cl, 4 dwg

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