INTRUSION DETECTION SYSTEM AND INTRUSION DETECTION METHOD FOR DOOR OR WINDOW

摘要

An intrusion detection method for a door or window is provided, comprising: receiving acceleration or angular velocity data acquired by a sensor attached to the door or window; judging whether multiple acceleration or angular velocity data samples in the acceleration or angular velocity data include consecutive acceleration or angular velocity data samples meeting the following predetermined criterion: (i) change amount data between every two adjacent acceleration or angular velocity data samples in the consecutive acceleration or angular velocity data samples is greater than a first predetermined threshold, and (ii) the number of the consecutive acceleration or angular velocity data samples is greater than a second predetermined threshold; determining whether the door or window has suffered an intrusion on the basis of the result of the judgment; and outputting the result of the determination. Intrusion by an intruder is thereby identified accurately.