Wireless Charging Alignment Guidance via Power Threshold Feedback
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Solution Overview
Problem
Electronic devices face challenges in efficiently wirelessly charging their batteries due to misalignment with charging devices, leading to reduced power transfer efficiency and user inconvenience.
Innovation Solution
The electronic device includes a processor, memory, and a display that detect the power level received from an external device and adaptively displays guidance information to adjust its position for optimal alignment, using sensors and communication circuits to identify the relative location relationship and display notifications to the user.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the electronic device is placed on the charging device without alignment guidance, then the charging process can start, but the charging efficiency is reduced due to misalignment
Solution Approach 1:
The system continuously monitors the wireless power transfer efficiency and provides real-time feedback to the user through display screens. When misalignment is detected (power below designated threshold), the system displays alignment guidance information showing the correct positioning, allowing users to adjust the device accordingly to restore optimal charging efficiency.
Solution Approach 2:
The patent introduces an intermediary alignment guidance mechanism between the electronic device and charging device. This intermediary system uses sensors to detect alignment status and provides visual guidance information on the display, mediating the interaction between the user and the charging process to ensure proper alignment without requiring direct manual positioning.
2Productivity
If alignment guidance information is displayed continuously, then charging efficiency is maintained, but energy is consumed by the display
Solution Approach 1:
Instead of continuous display operation, the system employs periodic monitoring of power transfer efficiency and only activates the display when misalignment is detected (power below designated threshold). The display shows alignment guidance information temporarily during misalignment events, then turns off when proper alignment is achieved, reducing overall energy consumption while maintaining charging efficiency.
Solution Approach 2:
The system automatically monitors its own charging status and only activates the display when needed based on detected misalignment conditions. This self-service approach ensures the display operates minimally - only when charging efficiency is compromised - thereby reducing energy consumption while maintaining optimal charging performance when required.
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 user experience by ensuring efficient wireless charging by providing real-time alignment guidance, thereby maintaining battery power levels and improving charging efficiency.
Implementation Method 1
a power receiver to obtain electric power wirelessly. The power obtained wirelessly through the power receiver through a coil in the electronic device
Data Source
AI summary
A method includes receiving a wireless signal at an electronic device from an external electronic device. The method further includes determining whether the wireless signal indicates that power provided by the external electronic device to the electronic device satisfies a threshold. The method further includes, responsive to determining that the power provided by the external electronic device to the electronic device fails to satisfy the threshold, determining a state of the electronic device. The method further includes, responsive to determining the state of the electronic device, displaying a screen based on the state of the electronic device.