| 摘要 |
A portable alarm system for notifying a user of theft or movement of an object when the user is at a distance from the object. The portable alarm system may generally comprise a sensor unit and a remote unit. The sensor unit may be placed on or embedded within an object to be protected and have one or more sensors for detecting vibration and/or motion of the sensor unit and thereby the object. The sensor unit is activated when vibration or movement input exceeds a predetermined trigger level value. When the trigger level value is exceeded, an alarm signal is transmitted to the remote unit. The remote unit receives the alarm signal and may generate one or more alarms to indicate object vibration or movement. The one or more alarms may include but are not limited to an audible buzzer, light indicators, and remote unit vibration. |
