Field of view traffic signal preemption
US8912922B2 · kind B2 · utility
8Cited by
3References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 4, 2012 |
| Grant date | Dec 16, 2014 |
| Priority date | — |
| Expiry date | Jan 22, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08G1/087
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Approaches for issuing preemption requests. The boundaries of a geo-window are repeatedly determined based on locations and headings of a vehicle as the vehicle is traveling along a roadway. The methods and systems determine whether or not any one of a plurality of intersections is located within the boundaries of the geo-window in response to changed boundaries of the geo-window. In response to determining that one of the plurality of intersections is located within the boundaries of the geo-window, a preemption request is transmitted from the vehicle to an intersection controller at the one of the plurality of intersections.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.