METHOD FOR INTRUSION DETECTION VIA CHANGES IN THE PRESENCE OF SHORT RANGE RF DEVICES

• US 20090140854A1
• Filed: 12/04/2007
• Published: 06/04/2009
• Est. Priority Date: 12/04/2007
• Status: Abandoned Application

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Golander, Amit
• Application Number:
  US11/950,078
• Publication Number:
  US 20090140854A1
• Time in Patent Office: Days
• US Class Current: 340/540
• CPC Class Codes: G08B 13/2494 by interference with electro-magnetic field distribution combined with other electrical sensor means, e.g. microwave detectors combined with other sensor means

Abstract

A method for monitoring for radio frequency (RF) signals to determine an unexpected presence, activity, or security threat, the method includes: scanning for RF signals; detecting an RF signal; determining at least one of the following: whether the RF signal is jammed, whether the RF signal is assigned to a device that is forbidden, and whether the RF signal is assigned to a device breaking one or more pre-defined rules; sending a potential threat alert in response to the determining; and wherein the one or more pre-defined rules are held in a database.

Claims

1. A method for monitoring for radio frequency (RF) signals to determine an unexpected presence, activity, or security threat, the method comprising:

scanning for RF signals;

detecting an RF signal;

determining at least one of the following;

whether the RF signal is jammed, whether the RF signal is assigned to a device that is forbidden, and whether the RF signal is assigned to a device breaking one or more pre-defined rules;

sending a potential threat alert in response to the determining; and

wherein the one or more pre-defined rules are held in a database.

2. The method of claim 1, wherein the RF signals are radio frequency identification (RFID) signals.

3. The method of claim 1, wherein the RF signals are short range signals.

4. The method of claim 1, wherein camera views are prioritized in response to the detection of the RF signal.

5. The method of claim 1, wherein one or more of the following:

RF signal triangulation and RF signal ranging are used to determine the position of the detected RF signal.