Geographic locator using gps

Details Geographic locator using gps Geographic locator using gps

G - Physics

01

S

G01S 5/14 (2006.01) G01C 21/30 (2006.01) G08G 1/123 (2006.01)

Patent

CA 2169496

A system and method for using coordinate data indicative of the present location of a vehicle to determine which state the vehicle is in. A receiver obtains the coordinate data and compares it to state boundary coordinate information stored in memory. The angles created by the present coordinate location and each pair of adjacent points along a state's boundary are added. A resulting sum of two times pi (radians) indicates that the present state falls within the state boundary, a result of zero indicates otherwise.

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