DOOR/WINDOW CONTACT SYSTEM
4 Assignments
0 Petitions
Accused Products
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.
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Citations
34 Claims
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1-14. -14. (canceled)
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15. A position detector comprising:
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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. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 33)
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24. A monitoring system comprising:
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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. - View Dependent Claims (25, 26, 27, 28, 34)
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29. A method comprising:
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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. - View Dependent Claims (30, 31, 32)
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Specification