| 摘要 |
A system (10) and apparatus (32) for detecting unauthorized or unsafe movement or crash detection of a moveable object (30) where the system includes a GPS receiver (32), cellular modulator (32), processor (32), pager modem (32), sensor (32) and two-way pager (34). When the system (32) is coupled to a moveable object (30) and is armed via the pager, the sensor is monitored by the processor to determine when a possible theft of the moveable object may be occurring. When the system is coupled to a moveable object and is not armed, the sensor is monitored by the processor to determine when a possible crash detection of the moveable object may be occurring or occurred. In one embodiment the accelerometer is a three axis accelerometer where the sensor detects small movements of the object in three axes. The processor generates a message including the system's location and unique system identifier (any may include crash severity parameters when a crash is detected). The processor transmits the message to a monitoring center via a cellular network (and the cellular modulator). In one embodiment, the message is a text message and transmitted using a GSM, GPRS, or Short Messaging Service cellular based network.
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