Active energy harvesting for radio-frequency identification devices

摘要

In general, embodiments of the present invention provide approaches for providing power to RFID transponders. In one embodiment, the RFID transponder is powered using a magnetic field generated by power lines. In another embodiment, the RFID transponder is powered using a field generated by a wireless network. In the case of the latter, the RFID transponder acts as a member of the wireless network. In so doing, the RFID transponder is granted user rights and controls, and can control devices that are available on the network.

主权项

1. A method for providing power to radio-frequency identification (RFID) devices through power lines and a wireless network, comprising:
placing a passive RFID transponder that does not include a power source within a field generated by a power line and the wireless network; and enabling the RFID transponder to communicate directly with an RFID reader that is outside of a normal operating range of the RFID transponder by powering the RFID transponder using the field generated by the power line and the wireless network; the RFID transponder gaining a set of user rights and controls on the wireless network; the RFID transponder gaining a higher priority on the wireless network using the set of user rights and controls; the RFID transponder being configured to request a higher level of power:
from the power line; andfrom the wireless network using the set of user rights and controls.