Wireless Power Transmitter with Spatial Tracking
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Solution Overview
Problem
Conventional wireless charging systems are limited in transmitting energy over meaningful distances and fail to accurately track and manage power distribution for mobile devices within large spaces, lacking the capability to adapt to user mobility and ensuring safe electromagnetic field exposure levels.
Innovation Solution
The system generates and transmits power waves that converge at specific locations to form pockets of energy, using sensor data and communication signals to identify receiver locations and adjust power levels, ensuring safe energy distribution and compliance with regulatory limits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If wireless power transmission is extended to large spaces, then coverage area is improved, but tracking precision and power management capability deteriorate
Solution Approach 1:
The system divides the large transmission space into multiple segments and uses multiple transmitters, each responsible for specific segments. This segmentation allows each transmitter to maintain precise tracking within its designated area while collectively covering the entire large space, resolving the contradiction between coverage area and tracking precision.
Solution Approach 2:
The system transitions from two-dimensional tracking to three-dimensional spatial tracking by incorporating vertical positioning capabilities. This dimensional expansion enables precise location identification of receivers moving in three-dimensional space within large coverage areas, maintaining tracking precision while extending coverage.
2Adaptability or versatility
If power waves are transmitted to mobile devices, then adaptability to user mobility is improved, but electromagnetic field exposure control becomes more difficult
Solution Approach 1:
The system continuously receives feedback from receivers about their locations and adjusts power wave transmission in real-time accordingly. This feedback mechanism enables the system to adapt to user mobility while maintaining electromagnetic field exposure within safe limits by dynamically modifying transmission parameters based on current receiver positions.
Solution Approach 2:
The system employs dynamic transmission parameters that automatically adjust based on receiver movement and position. By making the power transmission system dynamic rather than static, it can adapt to mobile devices while controlling electromagnetic exposure through real-time parameter modification such as power level adjustment and beam direction changes.
3Adaptability or versatility
If multiple receivers are serviced simultaneously, then system versatility is improved, but power distribution management complexity increases
Solution Approach 1:
The system segments the transmission field into multiple zones, with each transmitter or transmitter group responsible for specific zones. This segmentation allows multiple receivers to be serviced simultaneously in different zones while simplifying power distribution management by localizing control decisions to specific segments rather than managing all receivers globally.
Solution Approach 2:
The system employs universal transmitters capable of serving multiple types of receivers simultaneously with different power requirements and locations. These multi-functional transmitters can adapt their transmission parameters to serve various receiver types, increasing system versatility while maintaining manageable complexity through standardized control mechanisms.
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
Enables efficient and safe wireless power transmission to mobile devices within large spaces by forming energy pockets at precise locations, adapting to device movement and ensuring compliance with electromagnetic field exposure standards.
Implementation Method 1
generates and transmits power waves that converge at specific locations to form pockets of energy
Data Source
AI summary
A system for wireless-power transmission includes a radio-frequency wireless-power transmitter that is in communication with a sensor for acquiring data for motion recognition and tracking of a plurality of objects within at least a portion of a transmission field of the radio-frequency wireless-power transmitter; and one or more processors of the radio-frequency wireless-power transmitter configured to: detect location and displacement of an object of the plurality of objects within the transmission field; and send instructions to cause adjustments to transmission of one or more radio-frequency power-transmission waves by the radio-frequency wireless-power transmitter to a receiving electronic device based on the location and displacement of the object. The receiving electronic device is configured to use energy from the one or more radio-frequency power-transmission waves to (i) power the receiving electronic device and/or (ii) to charge a power source of the receiving electronic device.