Reader and method for wheel-based RFID devices
US9000923B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 14, 2008 |
| Grant date | Apr 7, 2015 |
| Priority date | — |
| Expiry date | Sep 9, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/10316
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A drive over, reader system for a wheel-based, electric field-actuated transponder device includes a vehicle support pad surface; an antenna device on the support pad located to operatively align with a wheel-based transponder device of the vehicle with the vehicle positioned on the pad in a read location; a transmitter device and a receiver device coupled to the antenna device for generating an upwardly directed electric field to actuate the transponder device and receive a responsive signal back from the transponder device. The upwardly directed electric field operatively engages the transponder device as the vehicle drives over the antenna device. Multiple antennae may be aligned in a linear array to subject the transponder device to multiple electric fields as the vehicle traverses the support pad. The antenna device of the reader system may be configured as a layered panel positioned on the support pad or as a dipole antenna embedded within the support pad.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.