METHOD AND SYSTEM FOR MONITORING AN AREA

摘要

Method and system for monitoring an area, especially for detecting gas and/or smoke, comprising the following steps: electronically registering a chosen area with a fixed camera having a two-dimensional sensor matrix providing a reference image of the area, defining at least one reference area within said reference image, repeated registering of the chosen area, providing at least one subsequent image of the area, comparing the subsequent image with the reference image, and registering shifts and/or diffusing of said reference areas, based on the registered changes, generating an electronic or optical signal.