Patent ID: 6791471
Filing Date: 2004-09-14
Classification: G01S,G08G

Abstract:
A method for communicating position information between vehicles, the method comprising:broadcasting from a first vehicle a message using a wireless communication pathway, the message describing a position of the first vehicle, a speed of the first vehicle, a direction in which the first vehicle is traveling and status information of the first vehicle wherein the status information indicates a status of a system in the first vehicle or indicates an abrupt change in speed or direction of the first vehicle; receiving the message at a second vehicle; determining a position of the second vehicle, a speed of the second vehicle, and a direction in which the second vehicle is traveling; and comparing the position of the first vehicle, the speed of the first vehicle, and the direction in which the first vehicle is traveling with the position of the second vehicle, the speed of the second vehicle, and the direction in which the second vehicle is traveling to determine whether an action is required by the second vehicle.