Wireless Charging via Device-to-Device Power Transfer
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Solution Overview
Problem
Current wireless charging technologies are limited in their ability to charge electronic devices regardless of their location, particularly for devices like mobile terminals that require mobility and flexible charging solutions.
Innovation Solution
A wireless charging method and apparatus that utilize a communication and control unit to search for and connect with rechargeable electronic devices within the same payment system, allowing for power transmission and reception between devices, including a power transmitter and receiver, and a base station server for managing fees and communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If electromagnetic induction technique is used for wireless charging, then efficient high-energy transmission is achieved, but the charging distance is limited and devices must be in close proximity to the charger
Solution Approach 1:
The patent introduces a base station server as an intermediary that manages multiple electronic devices and coordinates power transmission. This mediator enables devices to charge from any other device in the network, not just from a fixed charger, thereby extending the effective charging distance while maintaining efficient energy transmission through coordinated device-to-device charging.
Solution Approach 2:
The patent creates a universal charging system where any electronic device with a battery can serve as both a power source and a power receiver. This multi-functionality allows devices to charge each other, eliminating the need for dedicated charging stations and extending charging capability to any location where another device is available.
2Length of moving object
If resonance technique is used for wireless charging, then charging at a distance of a few meters is enabled, but the power transmission efficiency decreases compared to electromagnetic induction
Solution Approach 1:
The patent implements a dynamic charging system where devices can move freely and charge from any other device in proximity. The system dynamically selects power sources based on availability, distance, and power needs, allowing devices to optimize their charging position and switch between different power sources as they move, thereby maintaining efficient power transmission while enabling charging at various distances.
Solution Approach 2:
The base station server collects information from all connected devices about their power status, battery levels, and charging capabilities. This feedback mechanism allows the system to intelligently match power sources with devices needing charging, optimizing power transmission efficiency by selecting the most suitable power source based on real-time conditions rather than relying on fixed resonance-based distance charging.
3Ease of operation
If wireless charging is implemented between mobile devices, then mobility and convenience are enhanced, but the need for payment system integration and device searching increases system complexity
Solution Approach 1:
The patent implements a self-service charging system where devices automatically search for, identify, and connect to power sources without user intervention. The communication and control units autonomously handle device discovery, power capability verification, and charging initiation, eliminating the need for manual pairing or complex user setup procedures while maintaining system security through automated payment system integration.
Solution Approach 2:
The base station server performs preliminary actions by pre-establishing communication with all connected devices, collecting their power service information, and verifying their rechargeable status before charging is needed. This preliminary setup reduces the complexity of real-time decision-making during actual charging operations, as the system has already validated device compatibility and payment credentials in advance.
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
Enables wireless charging between electronic devices that subscribe to the same payment system, ensuring efficient power transfer and fee management, even when devices are not in close proximity, enhancing mobility and convenience for electronic devices.
Implementation Method 1
The electromagnetic induction technique works by transmitting power between a primary coil and a secondary coil. When moving a magnet around a coil, a current is induced and electricity is generated.
Implementation Method 2
a transmitter generates a magnetic field and a receiver generates energy on behalf of the magnet
Data Source
AI summary
A wireless charging method includes searching one or more rechargeable electronic devices, receiving power service information from one or more searched electronic devices, determining whether the one or more searched electronic devices are rechargeable based on the received power service information, and if the one or more searched electronic devices are rechargeable, receiving power from the electronic devices.