DOOR/WINDOW CONTACT SYSTEM

• US 20150154838A1
• Filed: 02/13/2015
• Published: 06/04/2015
• 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 9,361,773 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 position detector comprising:

a first element having an attachment feature, the first element emitting a unique, identifying radio frequency signal in response to a received, enabling radio frequency signal wherein the first element further comprises an RFID-type tag; and

a second element with a transmitter that emits the enabling radio frequency signal, and that emits a reporting radio frequency signal, wherein both signals are emitted by the same transmitter wherein power is optimized to improve battery life by only transmitting what the first element requires for the signal to be emitted.

16. A detector as in claim 15 where the RFID-type tag transmits the identifying radio frequency signal upon receipt of the enabling radio frequency signal.

17. A detector as in claim 16 where the tag is one of an active tag, or a passive tag.

18. A detector as in claim 15 where the attachment feature of the first element includes at least one of an adhesive, or a mechanical fastener.

19. A detector as in claim 18 where the first element includes a housing which carries the attachment feature.

20. A detector as in claim 15 wherein a housing of the first element is one of surface mountable, or recess mountable.

21. An apparatus which includes at least one wireless position detector as in claim 15 and which includes a monitoring system control unit with a receiver which receives the reporting signal, and, emits an alarm indicating output indicative of the reporting signal.

22. An apparatus as in claim 21 where the transmitter wirelessly communicates with the monitoring system control unit with a signal having a frequency substantially identical to the frequency of the enabling signal emitted by the detector.

23. An apparatus as in claim 21 where the position detector includes a common transmitter to emit an activating signal and a reporting signal.

33. A method as in claim 15 wherein a radio frequency signal is emitted by the first element substantially at the same frequency as the signal emitted by the second element.

24. A monitoring system comprising:

a plurality of wireless condition detectors wherein at least one detector responds to displacement of a member from a first position to a second displaced position, and includes a transceiver which emits both a wireless activation signal to an RF responsive position sensor, and a wireless alarm reporting signal and where the RF responsive position sensor further comprises an RFID-type tag wherein power is optimized to improve battery life by only transmitting what the first element requires for the signal to be emitted; and

a control unit in wireless communication with members of the plurality wherein the unit includes a receiver which receives the reporting signal.

25. A monitoring system as in claim 24 where the transceiver of the at least one detector emits an enabling radio frequency signal, and the detector'"'"'s reporting signal, wherein both signals are emitted at substantially the same frequency.

26. A monitoring system as in claim 24 which includes in the plurality at least one or more of, glass break detectors, motion detectors, fire detectors, and gas detectors.

27. A monitoring system as in claim 24 where the RFID-type tag is mountable on the one member.

28. A monitoring system as in claim 24 where the at least one detector transmits at a frequency in a band between 300 MHz and 930 MHz.

34. A method as in claim 24 wherein a radio frequency signal is emitted by the first element substantially at the same frequency as the signal emitted by the second element.

29. A method comprising:

providing a first element having an attachment feature, the first element emitting a unique, identifying radio frequency signal in response to a received, enabling radio frequency signal wherein the first element further comprises an RFID-type tag;

providing a second element with a transmitter that emits the enabling radio frequency signal, and that emits a reporting radio frequency signal, wherein both signals are emitted by the same transmitter wherein power is optimized to improve battery life by only transmitting what the first element requires for the signal to be emitted.; and

minimizing power when the elements are in a first position relative to one another.

30. A method as in claim 29 which includes increasing power when the elements move toward a second state relative to one another.

31. A method as in claim 30 where the elements are further apart from one another when in the second state as opposed to the first state.

32. A method as in claim 31 wherein a radio frequency signal is emitted by the first element substantially at the same frequency as the signal emitted by the second element.