Lighting system with traffic management capabilities
US8436748B2 · kind B2 · utility
18Cited by
101References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 18, 2008 |
| Grant date | May 7, 2013 |
| Priority date | — |
| Expiry date | Jul 7, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/40
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present lighting system adds detection capabilities to perceive the presence and measure the velocity of objects such as automobiles, trucks, pedestrian and other users, to lighting modules for transportation applications like traffic signal, pedestrian control, rails signal, street light, message board and speed monitoring board. For example, a Light Emitting Diode (LED) has the capability to be used as lighting source for illumination as a first function and also be pulsed or modulated as a source for the detection sub-system as a second function.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.