Receiver Location Detection in 3D Wireless Power Fields
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Solution Overview
Problem
Conventional wireless charging systems struggle to efficiently transmit energy over meaningful distances and fail to accurately track and manage power distribution in three-dimensional spaces, particularly in environments with user mobility and varying device locations.
Innovation Solution
The system generates and transmits power waves with specific waveform characteristics to converge at predetermined locations within a transmission field, forming pockets of energy that can be harvested by receivers. This approach includes adaptive pocket forming based on sensor data and heat-map data to ensure safe and efficient energy transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If magnetic resonance is used to transmit power wirelessly, then wiring is eliminated and power can be transmitted without physical connection, but the electronic device must be located within a narrow magnetic field range limiting user mobility
Solution Approach 1:
The patent transitions from two-dimensional planar magnetic resonance charging to three-dimensional electromagnetic wave transmission. The system uses multiple transmitters positioned at different heights and angles to create a volumetric transmission field, allowing receivers to be powered from various spatial positions rather than requiring precise alignment on a single plane.
Solution Approach 2:
The patent creates a universal power transmission system where multiple transmitters can serve multiple receivers simultaneously in different locations. The system can dynamically allocate power resources to different devices based on their positions and power needs, making the charging infrastructure adaptable to various user scenarios and device types.
2Device complexity
If conventional systems attempt to proximately locate electronic devices, then power transmission is simplified, but the systems cannot identify and map devices across large three-dimensional spaces
Solution Approach 1:
The patent divides the large three-dimensional space into multiple smaller zones or regions, each monitored by specific transmitters or sensor arrays. This segmentation allows the system to manage location tracking in manageable portions while maintaining overall spatial awareness across the entire environment.
Solution Approach 2:
The patent introduces communication signals and sensor data as intermediary elements between transmitters and receivers. These intermediaries carry location information and device identifiers, enabling the system to accurately map and track devices across large spaces without requiring direct line-of-sight or complex electromagnetic field analysis.
3Adaptability or versatility
If power waves are transmitted across large transmission fields, then user mobility is enhanced, but regulatory EMF exposure limits may be exceeded
Solution Approach 1:
The patent implements dynamic power level adjustment where transmitters continuously monitor receiver positions and adapt transmission power accordingly. When receivers are detected in certain zones, the system automatically reduces power levels to comply with EMF exposure limits, enabling safe operation across large spatial areas.
Solution Approach 2:
The patent incorporates feedback mechanisms where receiver devices communicate their locations and power reception status back to transmitters. This feedback loop enables real-time optimization of power transmission parameters to maintain safety compliance while ensuring efficient power delivery to mobile devices throughout the transmission field.
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
The system effectively transmits energy over larger distances and accurately tracks and manages power distribution in three-dimensional spaces, ensuring compliance with regulatory safety standards by dynamically adjusting power levels and avoiding sensitive objects.
Implementation Method 1
generates and transmits power waves with specific waveform characteristics to converge at predetermined locations within a transmission field, forming pockets of energy
Implementation Method 2
Receiver devices configured to determine location within a transmission field
Data Source
AI summary
Embodiments disclosed herein may generate and transmit power waves that, as result of their physical waveform characteristics (e.g., frequency, amplitude, phase, gain, direction), 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 pockets of energy and then convert that energy into usable electric power for the electronic device associated with a receiver. The pockets 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.