Remote measurement of motion employing RFID
First Claim
Patent Images
1. A measurement system, comprising:
- a transceiver configured to send and receive radio frequency signals;
a first transponder configured to receive radio frequency signals from the transceiver and to send radio frequency signals to the transceiver, the first transponder comprising a first motion sensor;
wherein the transceiver is configured to send an activation signal to the first transponder thereby enabling the first motion sensor to make a motion measurement and to hold the motion measurement.
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Accused Products
Abstract
A system and method for making measurements using and RFID system includes a transceiver, a transponder and a sensor configured within the transponder. The transceiver is configured to send and receive radio frequency signals. The transponder is configured to receive radio frequency signals from the transceiver and to send radio frequency signals to the transceiver. The transponder includes a sensor. The transceiver is configured to send an activation signal to the transponder thereby enabling the first transponder sensor to make a vibration measurement and to hold the measurement.
45 Citations
31 Claims
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1. A measurement system, comprising:
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a transceiver configured to send and receive radio frequency signals;
a first transponder configured to receive radio frequency signals from the transceiver and to send radio frequency signals to the transceiver, the first transponder comprising a first motion sensor;
wherein the transceiver is configured to send an activation signal to the first transponder thereby enabling the first motion sensor to make a motion measurement and to hold the motion measurement. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A measurement system, comprising:
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a transceiver configured to send and receive radio frequency signals;
a first transponder configured to receive radio frequency signals from the transceiver and to send radio frequency signals to the transceiver, the first transponder comprising a accelerometer. - View Dependent Claims (13, 14, 15, 16)
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17. A measurement system comprising:
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a transceiver configured to send and receive radio frequency signals; and
a transponder configured to send and receive radio frequency signals to and from the transceiver, the transponder including;
means for making a vibration measurement; and
means for holding the vibration measurement within the transponder. - View Dependent Claims (18, 19, 20, 21, 22)
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23. A transponder comprising:
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a circuit configured to receive and send radio frequency signals; and
an accelerometer coupled to the circuit for sensing vibration of a device coupled to the accelerometer;
wherein the circuit provides power to the accelerometer to make a measurement of the vibration.
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24. A method of making a measurement comprising:
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sending radio frequency signals from a transceiver to a transponder;
making a vibration measurement with a sensor within the transponder; and
holding the vibration measurement within the transponder. - View Dependent Claims (25)
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26. A method of making a measurement comprising:
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sending radio frequency signals from a transceiver to a transponder;
charging an analog circuit within the transponder from the radio frequency signals received from the transceiver; and
activating an accelerometer within the transponder using the charged analog circuit;
making a measurement with the accelerometer; and
interrogating the transponder with the transceiver via radio frequency signals such that the transceiver receives the measurement made by the accelerometer. - View Dependent Claims (27, 28, 29, 30, 31)
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Specification