Traffic preemption system and related methods
US8054202B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 20, 2009 |
| Grant date | Nov 8, 2011 |
| Priority date | — |
| Expiry date | Feb 1, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08G1/087
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A traffic preemption system and related methods. Implementations may include a vehicle preemption unit mounted to a vehicle including an optical transmitter adapted to identify to an intersection preemption unit coupled with an intersection system controller the presence of the vehicle. The vehicle preemption unit may include a vehicle radio transceiver and the optical transmitter and the vehicle radio transceiver may be coupled with a vehicle controller. The intersection preemption unit may include an optical receiver and an intersection radio transceiver. The optical receiver and the intersection radio transceiver may each be coupled with an intersection controller. The intersection preemption unit may be adapted to change a traffic light in favor of the vehicle to which the vehicle preemption unit is mounted in response to an optical signal, a radio signal, or a combination of optical and radio signals from the vehicle preemption unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.