OPERATING STATE DETECTION WITH ELECTRICALLY-POWERED ACTIVE RFID TAGS
First Claim
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1. A method comprising:
- obtaining from a pass-through tag through which electrical power is supplied to a host device, a current measurement of the host device over a predetermined time period;
deriving from the current measurement at least one parameter for determining a usage state of the host device, wherein the at least one parameter includes an overshoot of a current related measurement; and
determining when a component in the host device is running properly based on the at least one parameter.
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Abstract
Techniques are presented herein for monitoring operational status of a host device to which a pass-through tag is connected. The techniques involve obtaining from a pass-through tag through which electrical power is supplied to a host device, a current measurement of the host device over a predetermined time period; deriving from the current measurement at least one parameter for determining a usage state of the host device, wherein the at least one parameter includes an overshoot of a current related measurement; and determining when a component in the host device is running properly based on the at least one parameter.
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Citations
10 Claims
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1. A method comprising:
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obtaining from a pass-through tag through which electrical power is supplied to a host device, a current measurement of the host device over a predetermined time period; deriving from the current measurement at least one parameter for determining a usage state of the host device, wherein the at least one parameter includes an overshoot of a current related measurement; and determining when a component in the host device is running properly based on the at least one parameter. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method comprising:
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obtaining from a pass-through tag through which electrical power is supplied to a hospital bed, a current measurement of the hospital bed; monitoring the current measurement of the hospital bed; and determining whether a person is occupying the hospital bed based on the monitoring. - View Dependent Claims (9, 10)
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Specification