Method for determining the position and/or speed of a guided vehicle and associated system
US9817127B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 13, 2014 |
| Grant date | Nov 14, 2017 |
| Priority date | — |
| Expiry date | Jan 8, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/22
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for selecting usable satellites from among the satellites of a localization constellation, to determine an instantaneous kinematic state of a train, is provided. The method includes determining a measured value and an estimated value of a Doppler coefficient and/or a pseudo-range, then comparing the measured and estimated values and, in case of divergence, deleting the satellite from the usable satellites. The estimated value results from a dynamic model of the train, which uses only a kinematic state at a past moment to calculate an estimated instantaneous kinematic state and that uses a mapping of the track on which the guided vehicle moves.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.