| 摘要 |
<p>A drive over reader system for a wheel-based, electric field-actuated transponder device includes a vehicle support pad surface; an antenna device (122) on the support pad located to operatively align with a wheel-based transponder device (102) 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 (122) for generating an upwardly directed electric field (142) to actuate the transponder device (102) and receive a responsive signal back from the transponder device. The upwardly directed electric field (142) operatively engages the transponder device (102) as the vehicle drives over the antenna device (122). 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.</p> |
