Wireless Power Relay Apparatus for Interference-Free Data Communication
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless power transmission systems face interference issues during data communication due to amplitude modulation, affecting both data transmission and reception, particularly when using relay apparatuses in multistage connections.
Innovation Solution
The introduction of a relay apparatus with a relay amplitude modulator that varies the amplitude of voltage between specific amplitudes and a relay control circuit that uses the relay inverter circuit to eliminate differences in alternating current power amplitudes, minimizing interference during data transmission and reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If amplitude modulation is used for data communication during power transmission, then data transmission capability is improved, but interference is propagated to other apparatuses
Solution Approach 1:
The relay apparatus acts as an intermediary between the power transmission apparatus and power reception apparatus. It receives modulated signals, demodulates them to extract data, and regenerates clean modulated signals for forwarding. This intermediary function isolates interference locally while maintaining data communication capability across the multistage system.
Solution Approach 2:
The relay apparatus monitors the amplitude of received power signals and adjusts its output signal amplitude accordingly to maintain consistent power transmission levels. This feedback mechanism ensures that data communication via amplitude modulation does not cause harmful interference propagation to other apparatuses in the system.
2Length of stationary object
If relay apparatuses are added to extend power transmission range, then transmission distance is improved, but system complexity increases
Solution Approach 1:
The power transmission system is segmented into multiple independent stages, each consisting of a relay apparatus with power reception and power transmission functions. This segmentation allows the system to extend transmission distance by adding modular units while maintaining manageable complexity through standardized interfaces and functions.
Solution Approach 2:
Each relay apparatus is designed as a universal node that can both receive power from previous stages and transmit power to subsequent stages. This multi-functionality reduces system complexity by using identical standardized units throughout the chain, eliminating the need for different specialized components at each stage.
3Loss of information
If amplitude modulation varies voltage amplitude for data transmission, then data communication is enabled, but power transmission stability deteriorates
Solution Approach 1:
The system separates data communication and power transmission functions into distinct operational domains. Data is transmitted through controlled amplitude modulation in the communication domain, while the power domain maintains stability through independent amplitude control and regulation at each relay stage.
Solution Approach 2:
Each relay apparatus employs feedback control to monitor and maintain stable output power amplitude independent of input signal variations. This feedback mechanism compensates for amplitude modulation effects, ensuring that data transmission does not compromise power transmission stability in multistage configurations.
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 configuration effectively reduces interference, ensuring accurate data communication by maintaining consistent alternating current power amplitudes, even during data transmission and reception, thereby enhancing the reliability of wireless power transmission systems.
Implementation Method 1
a relay power reception antenna that is electromagnetically coupled with the power transmission power transmission antenna and that receives the transmitted power transmission alternating current power
Implementation Method 2
a power reception power reception antenna that is electromagnetically coupled with the relay power transmission antenna and that receives the transmitted relay alternating current power
Data Source
AI summary
A relay apparatus in a wireless power transmission system includes a relay power reception antenna that receives power transmission alternating current power from a power transmission power transmission antenna, a relay rectifier that converts the power transmission alternating current power into relay direct current power, a relay inverter circuit that converts the relay direct current power into relay alternating current power, and a relay power transmission antenna that wirelessly transmits the relay alternating current power. When transmitting data to the power transmission apparatus through amplitude modulation, the relay apparatus varies amplitude of voltage of the power transmission alternating current power received by the relay power reception antenna between a first amplitude and a second amplitude and performs control for eliminating a difference between a third amplitude of the relay alternating current power and a fourth amplitude of the relay alternating current power.