Vehicle position determination system & method

Details Vehicle position determination system & method Vehicle position determination system & method

G - Physics

01

S

G01S 13/74 (2006.01) G08G 1/017 (2006.01) G07B 15/00 (2006.01)

Patent

CA 2344013

A vehicle position determination system for determining the position of a moving vehicle having a transponder includes a first and second antennas operable to receive periodic radio frequency data signals from the transponder when the transponder is moving through a first or second predetermined coverage zone, respectively. The first and second coverage zones partially overlap and each have a width that is orthogonal to the travel path of the moving vehicle and a length that is parallel to the travel path of the moving vehicle. A processor counts the number of periodic data signals received by each of the antennas from the transponder during a time period and determines based on the count a probable location of the vehicle. The vehicle location information can be provided to an imaging system to discriminate between transponder and non-transponder equipped vehicles.

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