Transmission of energy and data using a collimated beam
First Claim
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1. A system for wirelessly providing power and data to a remote device, the system comprising:
- a source apparatus comprising;
a light source for generating a modulated collimated beam;
a steerable optical element; and
a wireless uplink receiver; and
a remote device comprising;
a receiver for receiving modulated light from the modulated collimated beam and converting the modulated light into an electrical power component and a signal component, the receiver comprising a photovoltaic cell and a splitter for splitting the output from the photovoltaic cell into an electrical power component and a signal component;
a processing unit for processing a signal component of the modulated light;
a power conditioning unit for conditioning electrical energy from the power component for powering the device;
an illumination detector for determining an illumination of the optical signal reaching the receiver and aligning the collimated beam; and
an uplink channel in communication with the wireless uplink receiver to relay feedback data related to collimated beam alignment to position the steerable optical element.
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Abstract
A system, device and method for wirelessly providing power and data to a remote device having a source apparatus generating a modulated collimated beam and a steerable optical element. A remote device with a receiver to convert the modulated collimated beam into an electrical signal which provides a power component for powering the device and a signal component. An uplink channel relays feedback data to position the collimated beam onto the receiver.
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Citations
17 Claims
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1. A system for wirelessly providing power and data to a remote device, the system comprising:
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a source apparatus comprising; a light source for generating a modulated collimated beam; a steerable optical element; and a wireless uplink receiver; and a remote device comprising; a receiver for receiving modulated light from the modulated collimated beam and converting the modulated light into an electrical power component and a signal component, the receiver comprising a photovoltaic cell and a splitter for splitting the output from the photovoltaic cell into an electrical power component and a signal component; a processing unit for processing a signal component of the modulated light; a power conditioning unit for conditioning electrical energy from the power component for powering the device; an illumination detector for determining an illumination of the optical signal reaching the receiver and aligning the collimated beam; and an uplink channel in communication with the wireless uplink receiver to relay feedback data related to collimated beam alignment to position the steerable optical element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A wireless device for receiving power and data from a modulated collimated beam, the device comprising:
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a receiver for receiving modulated light from the modulated collimated beam and converting the modulated light into an electrical power component and a signal component, the receiver comprising a photovoltaic cell for converting an optical signal from the modulated collimated beam into an electrical signal and a splitter for splitting the electrical signal from the photovoltaic cell into a power component and a signal component; a processing unit for processing the received signal; a power conditioning unit for processing electrical energy from the power component for powering the device; an illumination detector for determining an intensity of the optical signal reaching the photovoltaic cell; and an uplink channel to relay feedback data related to collimated beam alignment for positioning the modulated collimated beam on the receiver. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A method for fine tracking a location of a wireless device by a collimated beam, the method comprising:
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directing the collimated beam onto a receiver divided in a plurality of segments; measuring an illumination received by each of the plurality of segments; reverse linking each of the plurality of segments to feedback values related to measured beam intensity; and aligning the collimated beam onto the receiver based on the feedback values using a steerable optical element, wherein the illumination of each of the plurality of segments is computed by a processing unit and sent through the reverse link to align the position of the beam on the plurality of segments. - View Dependent Claims (16, 17)
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Specification