EMERGENCY VEHICLE ALERT SYSTEM
A Mechanism for Enhancing the faster reach of emergency vehicles through sea or vehicles over long range
Abstract â€œ EVAS is a method for an emergency vehicle alert system for transmitting signals from one or more emergency vehicles to a nearby commuter vehicle includes activating an initiation switch in one or more of the emergency vehicles. A transmitter located in each of the emergency vehicles, transmits a uniquely individual signal stamp of a predefined frequency and a GPS signal. Each emergency vehicle can be identified by the uniquely individual signal stamp. Other emergency vehicles and commuter vehicles in the area with the appropriate receiver can detect the transmitted signal stamp.
For more details just post here.