| 摘要 |
A method for tracking events using a radio frequency identification (RFID) tag may include reserving a bit window in a memory on a radio frequency identification (RFID) tag, the bit window having multiple bits, randomly marking one of the bits in the bit window each time a RFID event occurs, counting a number of marked bits in the bit window, and determining a number of the RFID events using the counted number of the marked bits and a size of the bit window.
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