| 摘要 |
The present invention concerns a wireless emergency alarm notification system for detecting a signal produced by a pre-existing smoke detector in a structure and for notifying persons in the immediate vicinity of a structure and in the surrounding area, as well as emergency personnel, of an emergency situation. The system includes a wireless sensor unit positioned nearby to a smoke detector for detecting an audible signal produced by the smoke detector in an emergency situation and a wireless receiver unit positioned on the exterior of the structure for receiving sensor signals from the sensor unit and activating an audible alarm and/or visible indicators. The sensor unit is comprised of a microphone for detecting a signal from the smoke detector, a control unit for determining the quality and/or quantity of the pre-existing smoke detector audible signal, a transmitter for transmitting an FM signal to a receiver, and a independent power source such as a battery. The receiver unit is comprised of an antenna, a FM tuner, FM receiver, power source, and a control unit for generating audible and/or visible alarms. In larger structures there may be numerous smoke detection systems each preferably having both a sensor unit and a receiver unit.
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