Patent ID: 8970374
Filing Date: 2015-03-03
Classification: G01S,G08B

Abstract:
1. A system for detecting intrusion, said system comprising: an illumination source projecting an array of illuminating beams distinguished by beam identifying features, along different optical paths; a detector array comprising elements detecting reflected illumination received in an array of fields of view, said reflected illumination originating from said array of illuminating beams, and said elements using d beam identify features to determine from which of said illuminating beams said reflected illumination originates; and a signal processing system adapted to detect changes in the reflected illumination levels detected by said elements of said detector array, wherein an increase greater than a first predefined level; in said reflected illumination from a first field of view associated with a first element, provides an indication of the spatial position of said intrusion at the crossing point of: (a) said first field of view associated d with said first element, with (b) that optical path whose illuminating beam generates said increase in reflected illumination detected by said first element.