Wireless Earphone Master-Slave Switching for Battery Balance
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Solution Overview
Problem
Existing wireless earphones lack the ability to support master-slave switching, resulting in a poor user experience due to inefficient battery life management and power consumption imbalance between paired earphones.
Innovation Solution
A method and system for predicting battery life and switching roles between earphones based on remaining power and operating parameters, where one earphone switches to serve as the master and the other as the slave when a predetermined threshold difference in battery life is detected, adjusting data transmission links accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wireless earphones are coupled with electronic devices through wireless technology, then functions such as listening to music and making calls can be realized, but the earphones are unable to support master-slave switching which provides poor experience for users
Solution Approach 1:
The patent implements dynamic master-slave switching capability in wireless earphones, allowing the earphones to adapt their roles based on battery life conditions. The system dynamically determines which earphone serves as master and which serves as slave, enabling flexible role assignment that was previously unavailable in static wireless earphone configurations.
Solution Approach 2:
The patent changes the operational parameters of the earphones by switching between master and slave roles based on battery life predictions. When one earphone's battery life is predicted to be shorter than the other's by a threshold amount, the system changes the role assignment parameter, allowing the lower-power earphone to serve as slave and the higher-power earphone to serve as master.
2Device complexity
If one earphone serves as master and the other as slave without switching capability, then the system structure is simple, but power consumption is unbalanced and battery life is not optimized
Solution Approach 1:
The patent implements a feedback mechanism where the master earphone predicts the battery life of both earphones based on remaining power and operating parameters. The system continuously monitors battery status and uses this feedback to determine when to switch master-slave roles, creating a closed-loop control system that optimizes power consumption balance.
Solution Approach 2:
The earphone system performs self-service by automatically switching master-slave roles based on predicted battery life without requiring external intervention. The system autonomously determines when switching is needed and executes the role transition, managing its own power optimization.
3Duration of action of stationary object
If master-slave switching is implemented based on battery life prediction, then power consumption is balanced and battery life is extended, but the system requires predicting and switching logic which increases complexity
Solution Approach 1:
The patent applies preliminary action by predicting battery life before actual depletion occurs. The system calculates predicted battery life based on current remaining power and operating parameters, allowing proactive switching decisions that prevent complete battery exhaustion of one earphone and optimize overall system battery utilization.
Data Source
AI summary
A method for controlling earphone switching and an earphone are provided. The method includes the following. A first earphone acquires a first remaining power and a first operating parameter of the first earphone and a second remaining power and a second operating parameter of a second earphone. The second earphone serves as a slave earphone. The first earphone predicts a first battery life of the first earphone according to the first remaining power and the first operating parameter and a second battery life of the second earphone according to the second remaining power and the second operating parameter. The first earphone predicts switches the second earphone to serve as a master earphone and the first earphone to serve as a slave earphone, when a difference between the second battery life and the first battery life is greater than a first preset threshold.