PERIMETRE AND TERRITORY SECURITY SYSTEM Russian patent published in 2012 - IPC G01S17/06 

Abstract RU 2447459 C1

FIELD: physics.

SUBSTANCE: television monitoring system includes at least one remote television camera, having an optical system and a radiation detector. Electromagnetic radiation retroreflectors are placed along the secured zone. The retroreflectors are placed in the field of vision of the television camera such that an intruder moving in the secured zone crosses at least one radiation beam. The beam pattern of the electromagnetic radiation source covers all retroreflectors. The electromagnetic radiation source lies with respect to the television camera such that the condition s<(Dpr+Di)/2+Dr+βR, is satisfied, where s is the distance between optical axes of the television camera and the electromagnetic radiation source, Dpr is the diameter of the entrance pupil of the optical system of the television camera, Di is the diameter of the exit pupil of the optical system of the electromagnetic radiation source, Dr is the clear aperture of retroreflector, β is the angular spread of the beam reflected by the retroreflector in the direction of the axis of the television camera, R is the range to the retroreflector.

EFFECT: high probability of detecting intruders and location thereof in space with wide range of distances and in different weather conditions.

3 cl, 7 dwg

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RU 2 447 459 C1

Authors

Vil'Ner Valerij Grigor'Evich

Volobuev Vladimir Georgievich

Rjabokul' Artem Sergeevich

Dates

2012-04-10Published

2010-09-23Filed