Wireless Power Transmitter Using Receiver Sensor Inputs
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Solution Overview
Problem
Conventional wireless power transmission systems are limited in their ability to transmit energy over meaningful distances and do not account for user mobility or regulatory EMF exposure limits, failing to effectively manage power wave directionality and output modulation, especially in three-dimensional spaces.
Innovation Solution
The system generates and transmits power waves that converge to form a pocket of energy at a predetermined location, using sensor data from electronic devices to adjust power levels and avoid sensitive objects, ensuring safe and effective power transmission while adhering to EMF exposure standards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If magnetic resonance is used to wirelessly transmit power, then power transmission without wired connection is achieved, but the electronic device must be proximately located within a magnetic field
Solution Approach 1:
The patent transitions from two-dimensional planar charging surfaces to three-dimensional volumetric power transmission using electromagnetic waves. This enables power delivery throughout a volume of space rather than requiring contact with a specific surface, thereby enabling user mobility while maintaining wireless power transmission.
Solution Approach 2:
The system dynamically adjusts power transmission parameters including beam direction, power output levels, and transmission frequency based on real-time receiver location and environmental conditions. This dynamic adaptation allows the system to track moving devices and maintain effective power transfer as users move through the space.
2Power
If conventional wireless power systems are used, then power transmission is achieved, but directionality control and power output modulation are insufficient
Solution Approach 1:
The power transmission system divides the transmission space into multiple directional beams, each independently controllable. This segmentation allows precise directionality control and selective power delivery to different locations, enabling fine-grained power management without requiring complex monolithic control systems.
Solution Approach 2:
The system dynamically modifies transmission parameters including power output levels, beam direction angles, and waveform characteristics based on receiver detection and environmental feedback. This parameter adjustment capability enables adaptive power delivery while maintaining manageable system complexity through automated control.
3Adaptability or versatility
If power waves are transmitted in three-dimensional spaces, then user mobility is enabled, but regulatory EMF exposure limits may be exceeded
Solution Approach 1:
The system continuously monitors electromagnetic field levels throughout the transmission space and adjusts power output accordingly. When sensors detect EMF levels approaching regulatory limits, the system automatically reduces transmission power or redirects beams, ensuring compliance while maintaining user mobility and charging effectiveness.
Solution Approach 2:
The system transmits power at higher levels only when and where needed, rather than continuously filling the entire three-dimensional space. By concentrating power in specific directional beams only when receivers are detected in those zones, the system enables user mobility while minimizing overall EMF exposure to comply with regulatory limits.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enables efficient wireless power transmission in three-dimensional spaces, ensuring safe exposure levels and adaptability to changing environments, allowing for user mobility and compliance with regulatory limits.
Implementation Method 1
transmitting, by a transmitter, power waves that converge to form constructive interference at a location associated with a receiver
Implementation Method 2
Wireless power transmission systems are limited in their ability to transmit energy over meaningful distances
Data Source
AI summary
A method for wireless power transmission is performed at a wireless power transmitter. The method includes: (i) requesting sensor data from a receiver device; (ii) receiving sensor data from the receiver device in response to the request, wherein the sensor data is generated by one or more sensors of the receiver device; and (iii) determining whether the receiver device is in a proscribed state for wireless power reception based on the received sensor data. The method further includes, in accordance with determining that the receiver device is not in the proscribed state: transmitting, by antennas of the wireless power transmitter, a plurality of wireless power transmission waves to the receiver device so that each wireless power transmission wave of the plurality of wireless power transmission waves constructively interferes with at least one other wireless power transmission wave of the plurality of wireless power transmission waves.