VISION SENSOR FOR SECURITY SYSTEMS AND ITS OPERATING METHOD

摘要

Vision sensor (4) suitable for detecting the absence/presence of objects or persons inside at least one predetermined area (2) which has on its surface a geometrical reference shape (9); the vision sensor (4) comprises an image acquisition device (5) which is able to acquire, moment by moment, the image of the predetermined are (2); a processing unit (6) suitable for processing the image acquired from the predetermined area (2) in order to verify the absence/presence of objects or persons inside said area; and a projection device (8) which is suitable for generating an image which comprises the geometric reference shape (9) towards the predetermined area (2) so as to determine the projection of the geometric reference shape (9) on the surface of said predetermined area (2).