Providing energy to a passive wireless tag
AssigneeNational Oilwell Varco, L.P.
InventorTed Louis Christiansen
Life of this patent
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Abstract
A system and method for communicating with a passive wireless tag. In one embodiment, a device for powering a passive wireless tag includes a power source, a first antenna, and a controller. The controller is configured to detect a wireless signal transmission directed to the passive wireless tag. The controller is further configured to transmit power extracted from the power source, via the first antenna, to the passive wireless tag, responsive to detection of the wireless signal transmission. The transmitted power is to be used to power the passive wireless tag.
Claims21
A device for powering a passive wireless tag, comprising:
- a power source;
- a first antenna;
- and
- a controller;
- wherein the controller is configured to:
- detect a wireless signal transmission directed to the passive wireless tag by a remote transmitter;
- and
- transmit power extracted from the power source, via the first antenna, to the passive wireless tag, responsive to detection of the wireless signal transmission, the transmitted power to be used to power the passive wireless tag.
A method for extending the communication range of a passive wireless tag, comprising:
- affixing a tag converter to a tool housing the passive tag;
- detecting, by the tag converter, a wireless transmission directed to the passive wireless tag;
- and
- providing, by the tag converter, power to the passive wireless tag by wireless transmission of a power signal responsive to the detecting.
A system for communicating with a downhole asset, comprising:
- a wireless transceiver disposed at a fixed location;
- and
- a passive-to-active tag converter configured to:
- removably attach to the downhole asset;
- detect wireless transmissions from the transceiver;
- and
- wirelessly provide power to a passive wireless tag of the downhole asset responsive to detection of the wireless transmissions.
Dependencies are inferred from the claim text.