G - Physics – 01 – C
Patent
G - Physics
01
C
G01C 21/26 (2006.01)
Patent
CA 2639715
A geofence system which locates a position as within or without the complex polygon type geofence using a simplified algorithm. The algorithm obtains a position and compares it to the polygon by establishing a ray from the position constructed in a cardinal direction of the coordinate system. The "polarity" of the count of intersections between the ray and geofence indicates whether the position is inside the geofence or not.
Wang Zhengming
Zeng Xianguang
Finlayson & Singlehurst
International Truck Intellectual Property Company Llc
LandOfFree
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