发明名称 |
SYSTEM AND METHOD FOR DETERMINING POSITION WITHIN OR WITHOUT A COMPLEX POLYGON GEOFENCE |
摘要 |
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.
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申请公布号 |
US2009093958(A1) |
申请公布日期 |
2009.04.09 |
申请号 |
US20070867755 |
申请日期 |
2007.10.05 |
申请人 |
INTERNATIONAL TRUCK INTELLECTUAL PROPERTY COMPANY, LLC |
发明人 |
WANG ZHENGMING;ZENG XIANGUANG |
分类号 |
G01C21/26 |
主分类号 |
G01C21/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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