Methods and systems for correcting an estimated heading using a map
US9043072B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 4, 2013 |
| Grant date | May 26, 2015 |
| Priority date | — |
| Expiry date | Jun 1, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D1/0274
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Methods and systems for correcting an estimated heading using a map are disclosed. Map data indicative of a map of an environment of a vehicle and data indicative of an estimated heading the vehicle is received. A sensor obtains first spatial data indicative of locations of objects in the environment relative to the vehicle at a first time. A first location of the vehicle on the map is determined based on the first spatial data. The sensor obtains second spatial data indicative of locations of objects in the environment relative to the vehicle at a second time. A second location of the vehicle on the map is determined based on the second spatial data. A heading correction of the vehicle is determined based on the estimated heading, the first location, the first time, the second location, and the second time, and a speed of the vehicle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.