Wireless Charging Prioritization via Dynamic Power Allocation

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Solution Overview

Problem

Existing inductive charging systems for multiple devices lack the ability to prioritize power distribution based on device-specific needs, leading to inefficient charging when multiple devices are connected simultaneously.

Innovation Solution

A method for intelligent inductive charging that uses a micro-controller to assess device battery life through sensors and RFID tags, prioritizing devices based on power requirements, usage patterns, and thermal indicators, dynamically adjusting the power distribution to maximize amperage to critical devices while reducing power to non-priority devices.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If power is distributed equally to all connected devices, then all devices receive charging power, but critical devices may not receive sufficient power and charging efficiency is reduced

Engineering Contradiction:
Improvecharging reliabilityVSAvoidcharging efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The system implements differentiated power distribution where different devices receive different amounts of power based on their specific needs and priority levels. The controller adjusts power allocation dynamically, providing higher power to critical devices (e.g., smartphones) and lower or no power to non-critical devices (e.g., smartwatches), thereby resolving the contradiction between ensuring all devices charge and optimizing charging efficiency for critical devices

Inventive Principle:
Principle #3Local quality

2Speed

If high power is provided to all devices simultaneously, then charging speed is improved, but circuit overload and thermal issues occur

Engineering Contradiction:
Improvecharging speedVSAvoidcircuit overload and thermal issues
Core Design Contradiction:
SpeedVSObject-affected harmful factors

Solution Approach 1:

The system dynamically adjusts power distribution based on real-time conditions including device priority, battery charge levels, thermal indicators, and circuit capacity. The controller continuously monitors and reconfigures power allocation to maintain optimal charging speeds while preventing circuit overload and thermal issues, transforming a static power distribution system into a dynamic one that adapts to changing conditions

Inventive Principle:
Principle #15Dynamics

3Productivity

If power distribution is optimized for critical devices, then charging efficiency and reliability are improved, but non-priority devices receive insufficient power

Engineering Contradiction:
Improvecharging efficiencyVSAvoidcharging reliability
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The system enables devices to self-identify their priority levels and power needs through RFID tags and sensor data. Devices automatically communicate their charging requirements to the controller, which then allocates power accordingly. This self-service mechanism allows the system to optimize charging efficiency for critical devices while still providing basic charging service to non-priority devices without manual intervention

Inventive Principle:
Principle #25Self-service

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 ensures efficient and prioritized charging of critical devices by optimizing power distribution, preventing circuit overload and extending battery life, while also reducing thermal issues and energy consumption.

Implementation Method 1

intelligent inductive charging of multiple devices based on power preferences

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Implementation Method 2

assess device battery life through sensors and RFID tags

Methodology Applied
Scientific EffectRFID electromagnetic detection: Electromagnetic Induction

Data Source

PatentUS10903677B2Prioritizing an inductive charging of each device of multiple devices based on power preferences
Publication Date: 2021.01.26 INTERNATIONAL BUSINESS MACHINE CORPORATION
  • US10903677B2 patent drawing
  • US10903677B2 patent drawing
  • US10903677B2 patent drawing

AI summary

Inductive charging of multiple devices includes prioritizing one or more of the devices for receiving a power charge via a wireless charging device according to one or more power charging parameters. A selected amount of the power charge may be provided to the one or more prioritized devices, via the wireless charging device, according to the one or more power charging parameters.