ALARM SYSTEM WITH OBJECTS OPERATING BOTH AS SENSORS AND AS ACTUATORS

摘要

A solution for alarming a structure is proposed. A corresponding anti-intrusion system detects the vibration of an object belonging to a structure and the alarm is given in the form of induced vibration of the same object. For example, the objects may be panels of a perimeter of a property, so that vibrations caused by burglars attempting to cross the fence are detected. After verification of the vibration detected (discrimination that vibration was not caused by weather conditions like rain or storm), an alarm is given by vibration actuators that are placed on the same perimeter elements as an alarm signal. Self-calibration is foreseen as historical data that can be logged and used to update detection thresholds (e.g. taking into account different background vibration during night and day).