Patent ID: 6529831
Filing Date: 2003-03-04
Classification: G08G

Abstract:
A system for alerting a driver of a first vehicle of an approaching emergency vehicle, said first and emergency vehicles being land vehicles for operation on public streets, said system comprising:a navigation information system in said first vehicle providing first vehicle navigation information including geographic position, direction and speed of said first vehicle; a navigation information system in said emergency vehicle providing emergency vehicle navigation information including geographic position, direction and speed of said emergency vehicle; a transmitter in said emergency vehicle transmitting at least a portion of said emergency vehicle navigation information; a receiver in said first vehicle receiving movement information associated with movement of said emergency vehicle, said movement information including at least a portion of said emergency vehicle navigation information; a processing system in said first vehicle determining a position and direction of said emergency vehicle relative to said first vehicle in response to said first and emergency vehicle navigation information; and a warning system providing a human-perceptible indication in said first vehicle if said processing system determines said first and emergency vehicles are likely to converge within a predetermined proximity of one another; wherein said processing system predicts whether said first and emergency vehicles will converge in response to information including a destination point of said emergency vehicle.