ANTI-INTRUSION DETECTING METHOD TO BE APPLIED TO DOORS OR WINDOWS AND RELATED ANTI-INTRUSION SYSTEM

摘要

An anti-intrusion detecting method to be applied to a door or a window for generating an alarm condition as said door or window is moved away from a closed position, with said door being associated magnetic field generating means and magnetic field sensing means, the method including at least a step of detecting a variation of the North/South orientation of said magnetic field as a source of said alarm.