Method for detecting a wheel of a vehicle
US9117369B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 27, 2013 |
| Grant date | Aug 25, 2015 |
| Priority date | — |
| Expiry date | Nov 2, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/867
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A rotating wheel of a vehicle is detected by evaluating the Doppler shift of a measuring beam, which is emitted by a detector unit passed by the vehicle, and is reflected by the wheel and returned in Doppler-shifted form. In a relative position to the wheel, the vehicle comprises an onboard unit, which can establish radio communication with a transceiver having a known location in the detector unit. The direction and distance of the onboard unit from the transceiver are measured on the basis of at least one radio communication between the same. The radiation direction or radiation position of the measuring beam is controlled in accordance with the measured direction and distance and taking into consideration the aforementioned relative position and location.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.