Wireless Power Transmitter Feedback Control for Interference Mitigation
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Solution Overview
Problem
Wireless power transmitters face interference with other wireless communication systems when transmitting high-power electromagnetic waves, leading to deteriorated communication situations, especially when the presence of these systems cannot be detected within their range.
Innovation Solution
A wireless power transmission system that includes a measurement device positioned outside the detectable range of the power transmitter to monitor and provide feedback on wireless signals, allowing the power transmitter to adjust its electromagnetic wave power levels and frequencies to avoid interference with other communication systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the wireless power transmitter transmits electromagnetic waves at high power levels to efficiently supply power, then power transmission efficiency is improved, but interference with other wireless communication systems increases and communication quality deteriorates
Solution Approach 1:
The patent implements a feedback mechanism where a measurement device monitors wireless signal quality in the environment and provides this information back to the power transmitter. The transmitter then adjusts its electromagnetic wave parameters (power level, frequency, beam direction) based on this feedback to minimize interference while maintaining efficient power transmission. This closed-loop control resolves the contradiction by dynamically optimizing power transmission efficiency while preventing communication interference.
Solution Approach 2:
The patent makes the power transmission system dynamic by continuously adjusting electromagnetic wave parameters based on real-time communication environment conditions. Instead of fixed high-power transmission, the system dynamically modulates power levels, frequencies, and beam directions to adapt to changing communication conditions, thereby maintaining both high power transmission efficiency and minimal communication interference.
2Power
If the wireless power transmitter increases electromagnetic wave power to improve power supply efficiency, then power transmission performance is improved, but communication situations in the wireless communication system deteriorate
Solution Approach 1:
The measurement device continuously monitors communication signal quality and feeds this information back to the power transmitter. Based on this feedback, the transmitter dynamically adjusts its electromagnetic wave power level, frequency, and beam characteristics to maintain reliable communication while delivering sufficient power. This feedback-driven power adjustment resolves the contradiction between high power transmission and communication reliability.
Solution Approach 2:
The patent changes multiple parameters of the electromagnetic waves including power level, frequency, and beam direction based on communication environment conditions. By dynamically adjusting these parameters rather than maintaining fixed high power, the system achieves both effective power transmission and minimal impact on communication reliability.
3Productivity
If the power transmitter transmits high-power electromagnetic waves to efficiently supply power, then power supply efficiency is improved, but interference with other wireless communication systems occurs
Solution Approach 1:
The system uses feedback from measurement devices that monitor communication interference levels. When interference is detected, the power transmitter adjusts its electromagnetic wave parameters to reduce harmful interference while maintaining adequate power supply efficiency. This feedback mechanism enables the system to resolve the contradiction between power supply efficiency and interference generation.
Solution Approach 2:
The measurement device proactively monitors the communication environment and provides advance warning of potential interference conditions. The power transmitter uses this preliminary information to adjust its transmission parameters before significant interference occurs, preventing harmful effects while maintaining power supply efficiency.
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
Effectively reduces interference with other wireless communication systems by controlling the power and frequency of the electromagnetic waves based on feedback from the measurement device, maintaining efficient power transmission while minimizing disruptions to communication systems.
Implementation Method 1
a power supplier configured to supply power by an electromagnetic wave
Implementation Method 2
a measurement apparatus communicable with the electronic apparatus the measurement apparatus measuring a wireless signal
Data Source
AI summary
According to one embodiment, an electronic apparatus communicable with a measurement apparatus includes a power supplier and control circuitry. The power supplier is configured to supply power by an electromagnetic wave. The control circuitry is configured to receive first information on a wireless signal measured by the measurement apparatus and control the electromagnetic wave for power supply based on both the first information and a position of the measurement apparatus.