Device and method for detecting wheel axles
US8493238B2 · kind B2 · utility
4Cited by
13References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 1, 2010 |
| Grant date | Jul 23, 2013 |
| Priority date | — |
| Expiry date | Nov 3, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08G1/04
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
The invention relates to the detection of wheel axles of a vehicle on a roadway by means of a sensor, which operates according to the light-section procedure and emits at least one fan of light from a first location along the roadway to project a line of light onto the roadway and a vehicle possibly located thereon, and records this line of light from a second location along the same side of the roadway and detects a wheel axle as soon as the recorded line of light exhibits, in its course emanating from the said side of the roadway, a shift-free change in direction differing from its course when the roadway is empty.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.