Patent ID: 6353796
Filing Date: 2002-03-05
Classification: B60G,G01C,G01S

Abstract:
Apparatus for determination of the length of a path traveled by a vehicle at a sequence of selected times, the apparatus comprising:a location determination (LD) unit, transported by a vehicle, that receives and processes LD signals to determine location coordinates of a present location L and speed v of the LD unit at one or more selected observation times and to determine a location at which a vehicle arrest event occurs, at which the LD unit speed v is no greater than a selected positive speed threshold for a continuous time interval of length &Dgr;t that is greater than a selected positive time interval length; a distance measuring mechanism that measures a cumulative distance traveled by the vehicle from a selected earlier time to the present time; and a printer, connected to the LD unit, that receives and prints out the location coordinates and the observation time for at least one of: a time at which the vehicle arrest event begins, a time at which the vehicle arrest event ends, and the length of time consumed by the vehicle arrest event.