Wireless Energy Receiver Adaptive Synchronization
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless power transmission systems face challenges in efficiently transmitting energy over varying distances between source and target resonators due to limitations in distance-dependent energy reception and synchronization, which affects transmission efficiency and accuracy.
Innovation Solution
A wireless energy reception apparatus and method that utilize a target resonator configured to receive energy through resonance with a source resonator, incorporating a controller to detect energy frames, determine distances, and synchronize symbol start points based on energy magnitude and envelope slope, enabling adaptive connection and disconnection of the target resonator to a load to optimize energy transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If wireless power is transmitted using resonance between source and target resonators, then energy transmission capability is improved, but transmission efficiency deteriorates when distance between resonators varies
Solution Approach 1:
The patent applies dynamics by making the switching unit adaptively change its operation state based on detected distance. The system transitions from a static switching configuration to a dynamic one that adjusts connection timing between target resonator and load according to real-time distance conditions, thereby optimizing energy transfer efficiency across varying distances
Solution Approach 2:
The patent changes the timing parameter of the switching unit's operation based on distance. By detecting distance between source and target resonators and adjusting the connection/disconnection timing accordingly, the system optimizes energy reception efficiency for different coupling strengths without changing the physical structure
2Area of stationary object
If energy is transmitted over varying distances between source and target resonators, then transmission coverage is improved, but synchronization accuracy deteriorates
Solution Approach 1:
The patent implements feedback by using the controller to detect distance between source and target resonators, then using this distance information to adjust the switching unit's operation timing. This closed-loop feedback mechanism maintains synchronization accuracy across varying transmission distances by adapting the reception timing to the actual coupling conditions
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 solution enhances energy transmission efficiency by accurately synchronizing energy transfer across varying distances, improving the reliability and efficiency of wireless energy reception, even at different coupling strengths between source and target resonators.
Implementation Method 1
a target resonator configured to receive energy on a frame-by-frame basis from an energy transmission end through a resonance with a source resonator
Data Source
AI summary
A wireless energy reception apparatus includes a target resonator configured to receive energy on a frame-by-frame basis from an energy transmission end through a resonance with a source resonator in a symbol duration constituting a criterion for transmitting energy from the energy transmission end to an energy reception end; a load end configured to receive power from the target resonator; a switching unit configured to connect the target resonator to the load end, and disconnect the target resonator from the load end; and a controller configured to control symbol synchronization by detecting a start point of a symbol based on a distance between the source resonator and the target resonator.