Wireless Power Transfer Control for Moving Peripheral Devices
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Solution Overview
Problem
Wireless power transfer systems face inefficiencies and excess heat generation due to poor management of power transmission, especially when peripheral devices are in motion, leading to power waste and potential thermal overwork.
Innovation Solution
A wireless power transfer system that dynamically adjusts its operation by generating update frequencies based on detected acceleration of peripheral devices, optimizing power transmission in real-time through inductive coupling, thereby preventing excessive power loss and heat generation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the transmitter system operates at a higher transmission power to ensure sufficient power transmission during device movement, then power delivery reliability is improved, but energy waste and heat generation increase
Solution Approach 1:
The system dynamically adjusts the update frequency of coupling information based on device acceleration. When a peripheral device moves rapidly (high acceleration), the update frequency increases to maintain optimal power transmission. When movement is slow or stationary, the update frequency decreases, allowing the transmitter to operate at lower power levels and reduce energy waste.
Solution Approach 2:
The receiver system continuously monitors device acceleration and provides feedback to the transmitter system about the current movement state. This feedback loop enables the transmitter to adjust its operation in real-time, increasing update frequency only when necessary during rapid movement, thereby maintaining reliability while minimizing energy waste during normal operation.
2Stability of the object's composition
If the transmitter system increases transmission power to maintain coupling during frequent device movement, then coupling stability is improved, but thermal stress on components increases
Solution Approach 1:
The system implements dynamic update frequency adjustment based on real-time acceleration detection. During frequent or rapid device movement, the update frequency increases to maintain coupling stability. During normal operation with minimal movement, the update frequency decreases, reducing transmission power and consequently reducing thermal stress on system components.
Solution Approach 2:
The system changes the operational parameter (update frequency) based on detected acceleration levels. By mapping acceleration magnitude to update frequency, the system optimizes coupling stability only when necessary, thereby reducing unnecessary thermal stress on components during normal operation while maintaining stability during movement.
3Productivity
If the system uses frequent updates of coupling information, then power transmission efficiency is improved during movement, but device complexity increases
Solution Approach 1:
Rather than using continuously high update frequencies, the system dynamically adjusts the update frequency based on actual movement conditions. The receiver detects acceleration and only increases update frequency when movement is detected, maintaining power transmission efficiency during movement while avoiding unnecessary complexity and power consumption during stationary operation.
Solution Approach 2:
The system changes the update frequency parameter based on acceleration thresholds. By implementing conditional update frequency adjustment rather than continuous high-frequency updates, the system achieves efficient power transmission during movement without unnecessarily increasing device complexity or power consumption during normal operation.
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 enhances the efficiency and longevity of wireless power transfer by ensuring sufficient power delivery without wasting energy, reducing thermal stress on components, and maintaining stable operation during frequent device movement.
Implementation Method 1
a receiver antenna configured to receive the wireless power signals and wireless data signals via inductive coupling with the transmission antenna
Data Source
AI summary
A wireless power transfer system is provided having a wireless transmission system that includes an input to receive input power from an input power source, a transmission antenna, and a transmission controller configured to generate wireless signals based, at least in part, on the input power, the wireless signals including wireless power signals and wireless data signals, and to transmit such wireless signals. The wireless power transfer system further includes a wireless receiver system in a wireless peripheral device, the wireless receiver system having a receiver antenna configured to receive the wireless power signals and wireless data signals via inductive coupling with the transmission antenna, as well as a receiver controller configured to determine the acceleration of the wireless peripheral device, generate a prescribed update frequency based on the detected acceleration, and transmit operational updates to the wireless transmission system at the prescribed update frequency.