Real-time lane departure detection using map shape points and trajectory histories
US11320284B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 6, 2018 |
| Grant date | May 3, 2022 |
| Priority date | — |
| Expiry date | Jan 20, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D15/025
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A method includes accessing information stored for positions along a road and using the accessed information to identify an expected trajectory for a vehicle. Position information for the vehicle is received from a global positioning system for two different time points and is used to determine a trajectory of the vehicle. The trajectory of the vehicle and the expected trajectory are used to determine a lateral offset of the vehicle from the expected trajectory and the lateral offset is used to determine when to issue a lane departure warning for the vehicle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.