System and method for determining a position of a vehicle
US7653483B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 19, 2005 |
| Grant date | Jan 26, 2010 |
| Priority date | — |
| Expiry date | Jan 8, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D1/028
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and system for determining the position of a vehicle comprises a transmitter or transceiver for transmitting a transmission signal from a vehicle to beacons associated with the work area. A data processor determines an elapsed time including at least one of a first propagation duration and a second propagation duration. The first propagation duration refers to a propagation time of the transmission signal from the vehicle to the particular beacon; the second propagation duration refers to a propagation time of a return signal from the particular beacon to the vehicle. A compensator compensates for the following associated with the transmitter and the particular beacon: bias delay, noise, and measurement error. A data processor processes the elapsed times into corresponding position curves or temporal curves to estimate a position of a vehicle at a confluence or intersection of the position curves or temporal curves.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.