ENTITY DETECTION SYSTEM AND METHOD FOR MONITORING AN AREA

摘要

An entity detection method and system are provided for monitoring an area. The method comprises providing an illuminated band extending continuously along an extremity of the area; providing an optical detector having an image sensor adapted to capture an image, the illuminated band being viewable by the image sensor and being capturable in the image, a space between the band and the image sensor being part of the area; storing a detection threshold; analyzing the image to detect a discontinuity in the continuous illuminated band apparent on the image, comparing the detected discontinuity to the detection threshold; and indicating a status of the area to be one of a presence of an entity and an absence of the entity based on the comparing.