Systems and methods of object detection in wireless power charging systems
First Claim
1. A method for wireless power transmission comprising:
- generating, by an imaging sensor in communication with a transmitter, visual imaging data for a living being or sensitive object within at least a portion of a transmission field of the transmitter;
generating, by at least two ultrasound transducers in communication with the transmitter, ultrasound detection data identifying one or more objects;
determining, by the transmitter, a location of the living being or the sensitive object in the transmission field based upon the visual imaging data and the ultrasound detection data; and
transmitting, by the transmitter, power waves that converge at a location of a receiver based upon the location of the living being or sensitive object.
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Abstract
Embodiments disclosed herein discloses a wireless charging system configured to generate and transmit power waves that, due to physical waveform characteristics converge at a predetermined location in a transmission field to generate a pocket of energy. Receivers associated with an electronic device being powered by the wireless charging system, may extract energy from these pocket of energy and then convert that energy into usable electric power for the electronic device associated with a receiver. The pocket of energy may manifest as a three-dimensional field (e.g., transmission field) where energy may be harvested by a receiver positioned within or nearby the pocket of energy. Video sensors capture actual video images of fields of view within the transmission field, and a processor identifies selected objects, selected events, and/or selected locations within the captured video images.
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Citations
20 Claims
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1. A method for wireless power transmission comprising:
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generating, by an imaging sensor in communication with a transmitter, visual imaging data for a living being or sensitive object within at least a portion of a transmission field of the transmitter; generating, by at least two ultrasound transducers in communication with the transmitter, ultrasound detection data identifying one or more objects; determining, by the transmitter, a location of the living being or the sensitive object in the transmission field based upon the visual imaging data and the ultrasound detection data; and transmitting, by the transmitter, power waves that converge at a location of a receiver based upon the location of the living being or sensitive object. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A transmitter for wireless power transmission comprising:
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an imaging sensor configured to generate visual imaging data for a living being or sensitive object within at least a portion of a transmission field of the transmitter; at least two ultrasound transducers configured to generate ultrasound detection data identifying one or more objects; and a processor configured to determine a location of the living being or the sensitive object in the transmission field based upon the visual imaging data and the ultrasound detection data, and control transmission of power waves that converge at a location of a receiver based upon the location of the living being or sensitive object. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A transmitter for wireless power transmission comprising:
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an imaging sensor configured to generate visual imaging data in a two-dimensional plane for a living being or sensitive object within at least a portion of a transmission field of the transmitter; at least two ultrasound transducers configured to generate ultrasound detection data in a two-dimensional plane identifying one or more objects; and a processor configured to determine a location of the living being or the sensitive object in the transmission field when a location of the living being or sensitive object in the two-dimensional plane of the visual imaging data corresponds to a location of an object in the two-dimensional plane of the ultrasound detection data, and control transmission of power waves that converge at a location of a receiver based upon the determined location of the living being or sensitive object. - View Dependent Claims (18, 19, 20)
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Specification