DOOR/WINDOW CONTACT SYSTEM

• US 20160275764A1
• Filed: 05/03/2016
• Published: 09/22/2016
• Est. Priority Date: 12/04/2012
• Status: Active Grant

• Current Assignee: Ademco Inc. (Resideo Technologies, Inc.)
• Original Assignee: Honeywell International Inc.
• Inventors: Smith, Richard Alan
• Granted Patent: US 9,659,470 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06K 19/0725 the arrangement being a circuit for emulating a plurality of record carriers, e.g. a single RFID tag capable of representing itself to a reader as a cloud of RFID tags
• CPC Class Codes: G06K 19/07758 arrangements for adhering the record carrier to further objects or living beings, functioning as an identification tag
• 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 13/19608 Tracking movement of a target, e.g. by detecting an object predefined as a target, using target direction and or velocity to predict its new position
• CPC Class Codes: G08B 13/1961 Movement detection not involving frame subtraction, e.g. motion detection on the basis of luminance changes in the image
• CPC Class Codes: G08B 23/00 Alarms responsive to unspecified undesired or abnormal conditions
• CPC Class Codes: G08B 25/10 using wireless transmission systems G08B25/009 takes precedence
• CPC Class Codes: G08B 29/046 prevention of tampering with detection circuits

Abstract

A window or door position detector includes an RFID tag attachable to the window or door, and a transceiver. The transceiver emits an activating signal to the tag. The tag in turn responds with an identifying RF signal indicative of a predetermined position of the window or door. The detector includes a transceiver which can communicate with both the tag and a displaced monitoring system control panel.

Claims

1-14. -14. (canceled)

15. A method comprising:

a transceiver transmitting an enabling radio frequency signal to a displaced object;

responsive to transmitting the enabling radio frequency signal, the transceiver receiving an identifying radio frequency signal from the displaced object when the displaced object is in a first position; and

absent receiving the identifying radio frequency signal from the displaced object within a predetermined period of time after transmitting the enabling radio frequency signal to the displaced object, the transceiver transmitting a reporting radio frequency signal to a control panel device.

16. The method of claim 15 wherein the displaced object includes an RFID tag.

17. The method of claim 15 wherein the first position includes any position within a predetermined distance of the transceiver.

18. The method of claim 15 further comprising the enabling radio frequency signal including power to activate the displaced object.

19. The method of claim 18 further comprising adjusting a level of the power in the enabling radio frequency to activate the displaced object.

20. The method of claim 15 further comprising:

the transceiver transmitting the enabling radio frequency signal in a first frequency band; and

the transceiver receiving the identifying radio frequency signal in the first frequency band.

21. The method of claim 15 further comprising, absent the displaced object being in the first position, the transceiver transmitting the reporting radio frequency signal to the control panel device.

22. The method of claim 15 further comprising:

the transceiver transmitting the enabling radio frequency signal in a first frequency band; and

the transceiver transmitting the reporting radio frequency signal in the first frequency band.

23. A position detector comprising:

a transceiver;

a programmable processor; and

executable control software stored on a non-transitory computer readable medium,

wherein the programmable processor and the executable control software cause the transceiver to transmit an enabling radio frequency signal to a displaced object,

wherein, responsive to transmitting the enabling radio frequency signal, the transceiver receives an identifying radio frequency signal from the displaced object when the displaced object is in a first position, and

wherein, absent receiving the identifying radio frequency signal from the displaced object within a predetermined period of time after transmitting the enabling radio frequency signal to the displaced object, the programmable processor and the executable control software cause the transceiver to transmit a reporting radio frequency signal to a control panel device.

24. The position detector of claim 23 wherein the displaced object includes an RFID tag.

25. The position detector of claim 23 wherein the first position includes any position within a predetermined distance of the transceiver.

26. The position detector of claim 23 wherein the enabling radio frequency signal includes power to activate the displaced object.

27. The position detector of claim 26 wherein the programmable processor and the executable control software adjust a level of the power in the enabling radio frequency to activate the displaced object.

28. The position detector of claim 23 wherein the programmable processor and the executable control software cause the transceiver to transmit the enabling radio frequency signal in a first frequency band, and wherein the programmable processor and the executable control software cause the transceiver to receive the identifying radio frequency signal in the first frequency band.

29. The position detector of claim 23 wherein, absent the displaced object being in the first position, the programmable processor and the executable control software cause the transceiver to transmit the reporting radio frequency signal to the control panel device.

30. The position detector of claim 23 wherein the programmable processor and the executable control software cause the transceiver to transmit the enabling radio frequency signal in a first frequency band, and wherein the programmable processor and the executable control software cause the transceiver to transmit the reporting radio frequency signal in the first frequency band.