Multi-Device Charger Priority Management Using Battery State Feedback

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Solution Overview

Problem

Existing charging technologies fail to efficiently manage and prioritize charging among multiple electronic devices connected to a charging device, leading to inappropriate charging scenarios.

Innovation Solution

A charging device and electronic device system that includes units for acquiring and managing charging priority based on remaining battery levels and location information, enabling efficient charging by determining priority and optimizing power distribution among connected devices.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If charging is performed without considering remaining battery levels and device states, then charging can be implemented simply, but charging efficiency and appropriateness deteriorate

Engineering Contradiction:
Improvecharging efficiencyVSAvoidcharging management complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The charging device acquires remaining battery level information from multiple electronic devices and uses this feedback to dynamically determine charging priority. The charging management unit continuously monitors battery states and adjusts charging allocation accordingly, ensuring efficient power distribution based on actual device needs rather than static rules

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The charging priority is not fixed but dynamically determined based on real-time battery states of connected devices. The system adapts charging allocation as device states change, with the charging management unit recalculating priorities based on current remaining battery levels and device requirements

Inventive Principle:
Principle #15Dynamics

2Reliability

If charging priority is determined based on remaining battery levels and device states, then charging appropriateness is improved, but information acquisition and processing complexity increases

Engineering Contradiction:
Improvecharging appropriatenessVSAvoidinformation processing complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

Each electronic device autonomously reports its own remaining battery level and state information to the charging device. This self-service approach eliminates the need for the charging device to actively query or complexly infer device states, reducing information processing complexity while maintaining accurate charging priority determination

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The charging device determines charging priority in advance based on acquired battery state information before actual charging begins. This preliminary determination allows the system to prepare optimal charging allocation strategies, ensuring appropriate charging from the start without continuous complex adjustments during charging

Inventive Principle:
Principle #10Preliminary action

3Adaptability or versatility

If multiple electronic devices are connected to the charging device, then charging versatility is improved, but charging management difficulty increases

Engineering Contradiction:
Improvemulti-device charging capabilityVSAvoidcharging management ease
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The charging management function is segmented into automatic priority determination and user confirmation. The charging management unit automatically calculates charging priorities for each connected device based on their battery states, then presents this information to the user for final confirmation. This segmentation handles the complexity of multi-device management automatically while keeping user interaction simple

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP4651339A1Charging apparatus, electronic device, charging system, charging method, and communication method
Publication Date: 2025.11.19 JVC KENWOOD CORP
  • EP4651339A1 patent drawingFigure 1~2
  • EP4651339A1 patent drawingFigure 3
  • EP4651339A1 patent drawingFigure 4~5

AI summary

A charging device includes: a charging unit configured to charge an electronic device; a remaining electrical power value information acquisition unit configured to acquire information on a remaining electrical power value of a rechargeable battery provided in the own charging device; an electronic device information acquisition unit configured to acquire electronic device information that includes identification information on the electronic device and information on a remaining battery level value of a battery provided in the electronic device from each of the electronic devices through wireless communication; a charging target information acquisition unit configured to acquire, when a charging target device among the electronic devices is connected to the charging unit, charging target information that includes at least the identification information on the charging target device; and a charging management unit configured to generate charging information that includes battery charging priority related to charging of the charging target device based on the information on the remaining electrical power value, the electronic device information, and the identification information included in the charging target information.