| 摘要 |
An RFID system according to one embodiment includes an electronic device being powered by a battery; an RFID device in electrical communication with the electronic device; and a mechanism for estimating a remaining potential energy of the battery, wherein a flag is set on the RFID device when an estimated remaining potential energy of the battery is below a predefined threshold. In an RFID system according to another embodiment, the RFID device stores an indication of a condition of the battery powering the electronic device. An RFID device according to yet another embodiment of the invention includes an interface for providing a direct physical connection to an electronic device that is powered by a battery; a memory for storing an indication of a condition of the battery powering the electronic device; and circuitry for sending the indication stored in the memory to a remote device via an air interface.
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