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System and method for tamper detection using RFID devices

  • US 9,697,711 B2
  • Filed: 03/19/2015
  • Issued: 07/04/2017
  • Est. Priority Date: 03/19/2015
  • Status: Active Grant
First Claim
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1. A system for status indication, comprising:

  • a security device, having a first portion disposable on a first side of a separation boundary of a separable object, a second portion disposable on a second side of the separation boundary, and a separation region between the first portion and the second portion, the security device further having a first radio frequency identification (RFID) circuit configured to provide a first return signal and a second RFID circuit configured to provide a second return signal, wherein the first RFID circuit includes a first processor disposed entirely on the first portion and a first antenna spanning the separation region, and wherein the second RFID circuit includes a second processor disposed entirely on the second portion and a second antenna disposed entirely on the second portion; and

    a data device, comprising a microprocessor and system memory, an RFID reader and a radio antenna, configured to send and receive radio frequency signals with the first RFID circuit and the second RFID circuit, and configured to provide a graphical indication to a user of a secured status in response to receiving the first return signal with the second return signal, provide a graphical indication to a user of a compromised status in response to receiving the second return signal without the first return signal, and provide a graphical indication to a user of a no signal status in response to receiving neither the first return signal nor the second return signal.

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