Wireless Charging Controller with Location Recognition

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Solution Overview

Problem

Current wireless power charging technologies face challenges in efficiently charging mobile devices while minimizing human body exposure and maximizing convenience, as they require manual selection of charging methods based on power efficiency and safety considerations.

Innovation Solution

A wireless power charging apparatus that includes a location recognizer and a controller to automatically select the most efficient wireless power transmitter based on the location and environment of the mobile device, using methods like NFC, image recognition, and GPS, to optimize charging efficiency and reduce body harm rates.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If electromagnetic induction method is used for wireless charging, then the apparatus size can be reduced and implementation is simplified, but charging efficiency decreases and transmission distance is limited

Engineering Contradiction:
Improveapparatus implementation complexityVSAvoidcharging efficiency
Core Design Contradiction:
Device complexityVSProductivity

Solution Approach 1:

The patent combines electromagnetic induction method and magnetic resonance method in a single wireless charging apparatus. The controller selectively activates either or both methods based on real-time location information of the receiving device, thereby merging the advantages of both methods while mitigating their individual limitations.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent dynamically switches between electromagnetic induction and magnetic resonance methods based on the real-time location of the receiving device. The controller adjusts the charging method according to distance and position, making the system adaptive rather than static.

Inventive Principle:
Principle #15Dynamics

2Productivity

If magnetic resonance method is used for wireless charging, then charging efficiency at remote distance is improved, but power leakage affects human body safety

Engineering Contradiction:
Improvecharging efficiency at remote distanceVSAvoidhuman body exposure to electromagnetic radiation
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The system dynamically adjusts the charging method based on real-time location data. When the receiving device is within a safe distance threshold, electromagnetic induction is used; when beyond the threshold, magnetic resonance is activated to maintain charging efficiency while monitoring safety parameters.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent implements a feedback mechanism where the controller continuously monitors location information of the receiving device and adjusts the charging method accordingly. This closed-loop control ensures optimal charging efficiency while maintaining safety by switching methods based on real-time conditions.

Inventive Principle:
Principle #23Feedback

3Productivity

If user manually selects charging method based on power efficiency and safety, then charging optimization can be achieved, but user convenience decreases

Engineering Contradiction:
Improvecharging optimizationVSAvoiduser convenience
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The patent enables the wireless charging apparatus to automatically perform method selection without user intervention. The controller autonomously determines the optimal charging method by analyzing location information from NFC, image recognition, or GPS, thereby providing self-service optimization while maintaining user convenience.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces manual user selection with automated electronic systems including location recognizers (NFC, image recognition, GPS) and a controller that algorithmically determines the optimal charging method, substituting mechanical/user-based selection with electronic automation.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

4Ease of operation

If location recognition and automatic selection system is implemented, then user convenience and charging efficiency are improved, but device complexity increases

Engineering Contradiction:
Improveuser convenienceVSAvoidsystem structure complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent segments the location recognition function into multiple independent modules: NFC module for short-range communication, image recognition module for visual positioning, and GPS module for global location tracking. This segmentation allows flexible activation of only necessary modules based on specific应用场景, reducing overall system complexity.

Inventive Principle:
Principle #1Segmentation

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

The apparatus enables automatic and efficient wireless power charging, increasing user convenience by stereoscopically recognizing and tracking mobile devices' locations, maximizing charging efficiency, and minimizing human body exposure to electromagnetic fields.

Implementation Method 1

The wireless charging technology may mainly include an electromagnetic induction method and a magnetic resonance (MR) method. The electromagnetic induction method enables a non-contacting type power contact point

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Implementation Method 2

The wireless charging technology may mainly include an electromagnetic induction method and a magnetic resonance (MR) method. According to the MR method, charging efficiency is relatively high at a remote distance

Methodology Applied
Scientific EffectMagnetic resonance: Resonance

Implementation Method 3

The location recognizer may recognize the location information using near frequency communication (NFC)

Methodology Applied
Scientific EffectNear field communication: Electromagnetic Induction

Data Source

PatentUS9197095B2Wireless power charging apparatus and method of charging the apparatus
Publication Date: 2015.11.24 ELECTRONICS & TELECOMM RES INST
  • US9197095B2 patent drawing
  • US9197095B2 patent drawing
  • US9197095B2 patent drawing

AI summary

A wireless power charging apparatus and method are provided, which recognizes location information of at least one wireless power receiving apparatus; selects at least one of at least one wireless power transmitter that supplies power to the at least one wireless power receiving apparatus based on the location information; and supplies power to the at least one wireless power receiving apparatus through the at least one selected wireless power transmitter.