Method for updating a site database using a triangular irregular network
US5735352A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 1996 |
| Grant date | Apr 7, 1998 |
| Priority date | — |
| Expiry date | Dec 17, 2016 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02F3/842
- WIPO fieldCivil engineering
- WIPO sectorOther fields
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.