Wireless Power Device Interference Mitigation via Beam Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Wireless power supply devices face challenges in transmitting high-power electromagnetic waves without interfering with existing wireless communication systems, especially when powering multiple reception devices, as the interference can affect nearby communication systems.
Innovation Solution
The implementation of a wireless power supply system that performs carrier sense operations using phased array antennas to detect and adjust beam patterns based on the presence of wireless communication signals, allowing power transmission only when no interference is detected, and adjusting power supply periods based on request amounts from multiple power reception devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a wireless power supply device transmits an electromagnetic wave having a high power level, then power transmission efficiency is improved, but interference with existing wireless communication systems occurs
Solution Approach 1:
The wireless power supply device performs carrier sense operations before transmitting high-power electromagnetic waves to detect the presence of wireless communication signals. By conducting this preliminary detection, the device can determine whether it is safe to transmit power at high power levels, thereby preventing interference with existing communication systems while maintaining efficient power transmission when the channel is clear
Solution Approach 2:
The transmission power level is dynamically adjusted based on the results of carrier sense operations. When wireless communication signals are detected, the power transmission is suppressed or reduced; when no signals are present, full power transmission is enabled. This dynamic adaptation allows the system to optimize power transmission efficiency while avoiding interference with communication systems in real-time
2Adaptability or versatility
If a wireless power supply device transmits power to multiple power reception devices, then power supply coverage is improved, but effective power transmission while suppressing interference becomes difficult
Solution Approach 1:
The device performs separate carrier sense operations for different beam patterns corresponding to different power reception devices. Each carrier sense operation independently checks for wireless communication signals in the direction of a specific reception device. This segmentation allows the system to transmit power to multiple devices while selectively suppressing transmission only in directions where communication signals are present, thereby maintaining both wide coverage and interference suppression
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 effectively suppresses interference with wireless communication systems while ensuring efficient power transmission to multiple power reception devices by dynamically managing power supply periods and beam patterns, thereby enhancing coexistence with existing communication systems.
Implementation Method 1
a signal detection module configured to execute a first carrier sense by performing at least one of phase control and amplitude control corresponding to a first beam pattern for a received wireless signal, and execute a second carrier sense by performing at least one of phase control and amplitude control corresponding to a second beam pattern for the received wireless signal
Implementation Method 2
control power supply module to supply power by an electromagnetic wave with the first beam pattern based on a result of the first carrier sense, and supply power by an electromagnetic wave with the second beam pattern based on a result of the second carrier sense
Data Source
AI summary
According to one embodiment, an electronic device includes processor circuitry. The processor circuitry is configured to control detection module to execute a first carrier sense by performing at least one of phase control and amplitude control corresponding to a first beam pattern for a received wireless signal, and execute a second carrier sense by performing at least one of phase control and amplitude control corresponding to a second beam pattern for the received wireless signal, and supply power by an electromagnetic wave with the first beam pattern based on a result of the first carrier sense, and control power supply module to supply power by an electromagnetic wave with the second beam pattern based on a result of the second carrier sense.