Method for updating a site database using a triangular irregular

Earth working – Automatic power control – Land leveller type

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37348, 36416701, 36442407, G05B 1918, F21B 2106

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active

057353522

ABSTRACT:
The present invention provides a method for updating a site database. The site database models the elevation of a work site using a Triangular Irregular Network (TIN). The TIN is composed of a plurality of points. Each point has associated known X and Y coordinates and a known elevation and is associated with a set of other points in the network to form triangles. The work site is modified by a work machine. The method includes the steps of receiving a new set of points. The new set of points includes at least first and second points. The first and second points have associated X, Y, and Z coordinates. The method also includes the steps of comparing the new set of points with a previous set of points and updating the triangular irregular network with the new set of points if a minimum distance has been traversed by the work machine.

REFERENCES:
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SPI (Software Patent Institute Database of Software Technologies) Record 10, Title: Genacivil, dated Feb. 1, 1995, S/N HPAPPS.1576.
SPI (Software Patent Institute Database of Software Technologies) Record 11, Title: GeoTIN, dated Feb. 1, 1995, S/N HPAPPS.1584.
SPI (Software Patent Institute Database of Software Technologies) Record 9--Title: Star Topo dated Feb. 1, 1995, S/N HPAPPS.0764.
SPI (Software Patent Institute Database of Software Technologies) Record Display--Title: ARC/Info TIN dated Feb. 1, 1995, S/N HPAPPS.1563.

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