Real-time surveying/earth moving system
US6191732A · kind A · utility
71Cited by
5References
33Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 25, 1999 |
| Grant date | Feb 20, 2001 |
| Priority date | — |
| Expiry date | May 25, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/42
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The present invention includes a method and apparatus which determines the tree-dimensional (x, y, z coordinate) position of the receiving position of a GPS antenna on an earth-moving machine or a vehicle, determines the tilt of the machine or vehicle in real time (tilt may vary from point to point), and utilizes this data to calculate the three-dimesional (x, y, z coordinate) position of a point of the earth's surface disposed beneath the machine or vehicle. In a preferred embodiment, the present invention derives and displays the distance between the actual elevation of this point and the desired surface elevation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.