Patent ID: 6278921
Filing Date: 2001-08-21
Classification: G01C,G07C,G08G

Abstract:
A method of transferring accumulated data accumulated by a vehicle during operation of said vehicle and relating to operational characteristics of said vehicle, from a plurality of vehicles to a data processing station, said method comprising:transmitting a first packet type request from each vehicle to a receiving station via an open radio channel not forming part of an established telecommunications network, in response to a predetermined operation;detecting said first packet type at a data processing station if a transmitting vehicle is within the vicinity of said receiving station;transmitting an instruction for data in the form of a second packet type from said receiving station upon detecting said first packet type; andtransmitting a portion of a predetermined size of said accumulated data from a detected vehicle in response to said instruction to allow instructions for data to be transmitted to other vehicles in the vicinity to facilitate a downloading of said accumulated data from a plurality of vehicles in the vicinity.