Battery Charger System with Usage Pattern Analysis
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Solution Overview
Problem
Secondary cells in electronic devices face reduced durability due to frequent shallow discharging and immediate recharging, leading to shortened duration time, as existing charging control techniques fail to account for usage patterns and often result in either overcharge or undercharge scenarios.
Innovation Solution
A battery charger system that includes a data collector to monitor discharge and usage patterns, an analyzer to determine charging tendencies, and a charge controller to manage charging based on historical data, ensuring the battery remains within optimal charge levels, thereby reducing unnecessary charging cycles and preventing overcharge or undercharge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If charging is initiated frequently to ensure electric power availability, then the availability of electric power is improved, but the duration time of the secondary cells is shortened due to repeated shallow discharging and immediate recharging
Solution Approach 1:
The charging control unit initiates charging operations in advance based on predicted usage patterns derived from historical data, rather than waiting for the battery to deplete. This preliminary action ensures power availability while avoiding frequent shallow charge-discharge cycles by proactively managing charge initiation timing.
Solution Approach 2:
The data collector continuously gathers historical charging and usage data, which the charging control unit analyzes to adjust future charging decisions. This feedback mechanism enables the system to learn from past patterns and optimize charging frequency, preventing both overcharging and unnecessary shallow cycling that would reduce battery duration.
2Duration of action of moving object
If the charging operation is terminated at imperfectly charged state to prevent overcharge, then the duration time is improved, but the electric power availability is reduced
Solution Approach 1:
The charging control unit dynamically adjusts the charge termination threshold based on real-time conditions and historical patterns rather than using a fixed termination point. This dynamic approach allows the system to terminate charging at optimal points that balance battery health preservation with sufficient power availability, adapting to varying usage scenarios.
Solution Approach 2:
The system changes the charging parameter (termination threshold) based on analyzed usage patterns and battery state. By adjusting this parameter dynamically, the system optimizes the balance between preventing overcharge (preserving duration time) and ensuring adequate charge levels (maintaining power availability).
3Device complexity
If a fixed charging control method is used to simplify the charging process, then the device complexity is reduced, but the ability to adapt to usage patterns is lost, leading to suboptimal charging decisions
Solution Approach 1:
The charging control unit automatically analyzes historical data and makes charging decisions without requiring user intervention or complex external systems. This self-service approach enables adaptive charging behavior while keeping the system relatively simple, as the existing components perform multiple functions including data collection, analysis, and control.
Data Source
AI summary
A mobile telephone has a rechargeable battery, and the rechargeable battery is charged through a battery charger; the battery charger includes an information processing system serving as a charge controller and a battery manager; the battery manager measures a discharging time period of the rechargeable battery so as to store pieces of duration data expressing a charge-and-discharge cycle, and determines a charge initiation level and a charge completion level on the basis of the pieces of duration data in such a manner to reduce the number of charging operation without shortage of electric charge for the rechargeable battery; and the charge controller carries out the charging with reference to the charge initiation level and charge completion level so that the rechargeable battery is prolonged in life time.