RFID perimeter alarm monitoring system

• US 8,193,935 B2
• Filed: 11/22/2005
• Issued: 06/05/2012
• Est. Priority Date: 11/22/2005
• Status: Active Grant

• Current Assignee: Gates, Tell A.
• Original Assignee: Gates, Tell A.
• Inventors: Gates, Tell A.
• Primary Examiner(s): MULLEN, THOMAS J
• Application Number:
  US11/284,002
• Publication Number:
  US 20070194914A1
• Time in Patent Office: 2,387 Days
• Field of Search: 340/573.1, 340/541, 340/10.1, 340/10.32, 340/10.41, 340/1, 340/539.1, 340/539.22, 340/540, 340/545.1, 340/545.2, 340/545.5, 340/545.6, 340/686.1, 340/542, 3405721-5729
• US Class Current: 340/545.1
• CPC Class Codes: G08B 13/08 by opening, e.g. of door, of window, of drawer, of shutter, of curtain, of blind
• CPC Class Codes: G08B 13/126 for a housing, e.g. a box, a safe, or a room
• CPC Class Codes: G08B 13/22 Electrical actuation
• CPC Class Codes: G08B 25/009 Signalling of the alarm condition to a substation whose identity is signalled to a central station, e.g. relaying alarm signals in order to extend communication range
• CPC Class Codes: G08B 25/10 using wireless transmission systems G08B25/009 takes precedence
• CPC Class Codes: G08B 26/007 Wireless interrogation

Abstract

An RFID based security system detects a lock/unlocked condition when securing a premise and an open/close condition of a window and/or door to monitor for an intruder. A local interface polls a RFID tag and relays a read value to a user panel for a determination if an intruder has opened a window and/or door. Alternately, the local interface is connected to at least one of a second local interface and the user panel to form a security network. The security network is relied on to convey security information to the user panel for a determination if an intruder has opened a window and/or door.

Claims

1. A security system, comprising:

a switch sensor to detect a condition of an access point to a building; and

a Radio Frequency Identification (RFID) tag to formulate an RFID tag message to wirelessly communicate with a remote RFID tag reader;

wherein said switch sensor directly modifies a binary value stored by said RFID tag in response to said detected condition, said binary value being wirelessly transmitted with said RFID tag message.

2. The security system according to claim 1, wherein:

said remote RFID tag reader is comprised of a motion detector to detect motion within a field of view of said remote RFID tag reader.

3. The security system according to claim 1, further comprising:

a capacitor connected to said RFID tag to power an alert to signal a change in status of said RFID tag during a period of time when said RFID tag is not wirelessly interfaced.

4. The security system according to claim 1, further comprising:

a security network transceiver integrated with said remote RFID tag reader to communicate with at least one of a second remote RFID tag reader and a remote user panel.

5. The security system according to claim 4, wherein:

said security network transceiver is a Bluetooth™

transceiver.

6. The security system according to claim 1, wherein:

said remote RFID tag reader plugs into a wall power outlet.

7. The security system according to claim 1, wherein:

said remote RFID tag reader is integrated with a wall power outlet.

8. The security system according to claim 1, wherein:

said remote RFID tag reader relays said binary value associated with said condition to a remote user panel.

9. The security system according to claim 1, wherein:

said remote RFID tag reader communicates with a remote user panel.

10. The security system according to claim 9, wherein:

said remote user panel is connected to a speaker to sound an alert upon detection of an intruder.

11. The security system according to claim 1, wherein:

said condition is an open/close condition.

12. The security system according to claim 1, wherein:

said condition is a locked/unlocked condition.

13. The security system according to claim 1, wherein:

said RFID tag is embedded in a lock mechanism to continuously monitor a locked/unlocked condition of said lock.

14. A method of surveying access points to a building, said method comprising:

detecting a condition of an access point to said building with a switch sensor device;

directly modifying, with said switch sensor device, a binary value stored by a Radio Frequency Identification (RFID) tag in response to said detected condition;

formulating an RFID tag message with said RFID tag to wirelessly transmit said binary value to a remote RFID tag reader; and

wirelessly interfacing said RFID tag with said remote RFID reader to transmit said stored binary value associated with said detected condition.

15. The method of surveying access points to a building according to claim 14, further comprising:

detecting motion within a field of view of said remote RFID tag reader.

16. The method of surveying access points to a building according to claim 14, further comprising:

communicating with a second remote RFID tag reader.

17. The method of surveying access points to a building according to claim 14, wherein:

said condition is an open/close condition.

18. The method of surveying access points to a building according to claim 14, wherein:

said condition is a locked/unlocked condition.

19. The method of surveying access points to a building according to claim 14, further comprising:

embedding said RFID tag in a lock mechanism to continuously monitor a locked/unlocked condition of said lock.

20. A wireless security sensor, comprising:

a switch sensor to detect a condition of an entry point to a building; and

a Radio Frequency Identification (RFID) tag to formulate an RFID tag message, said RFID tag message being wirelessly transmitted to a remote RFID tag reader;

wherein said switch sensor modifies a binary value stored by said RFID tag in response to said detected condition, said binary value being wirelessly transmitted with said RFID tag message; and

wherein said wireless security sensor lacks a local power storage.

21. The wireless security sensor according to claim 20, wherein:

said condition is a locked/unlocked condition.

22. The wireless security sensor according to claim 20, wherein:

said RFID tag is embedded in a lock to continuously monitor a locked/unlocked condition of said lock.

23. A method of sensing a security condition, comprising:

detecting a condition of an entry point to a building with a switch sensor;

modifying a binary value stored by a Radio Frequency Identification (RFID) tag in response to said detected condition, said RFID tag lacking a local power storage; and

formulating an RFID tag message to wirelessly transmit said stored binary value to a remote RFID tag reader.

24. The method according to claim 23, wherein:

said condition is a locked/unlocked condition.

25. The method according to claim 23, wherein:

said passive sensor is embedded in a lock mechanism to continuously monitor a locked/unlocked condition of said lock.