Patent ID: 8094022

Claim:
An RFID assembly, comprising: a first part, which includes a unique address indicative of an RFID tag and RFID information associated with said RFID tag; a second, RFID modem, associated with said first part, which both receives first information from other RFID modems and also sends information in response to an interrogation directed to said unique address; wherein said RFID modem sending said first information received from other RFID modems, and also sending said RFID information—in response to an interrogation; and wherein said RFID modem carrying out a probabilistic routing that determines, when said second RFID modem receives a message from at least one other RFID modem, a distance between said second RFID modem, and said at least one other RFID modem, and where said second RFID modem calculates, based on said distance, a probable signal strength to said at least one other RFID modem, a propagation and a transmission power to said at least one other RFID modem, and wherein said probabilistic routing determines a probability of successful transmission to said at least one other RFID modem to determine whether to rebroadcast the message based on said probable signal strength, propagation and transmission power.