Mobile Device Battery Remaining Use Time Estimation
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Solution Overview
Problem
Mobile devices face challenges in accurately estimating remaining use time due to increased power demands and varying usage patterns, leading to unpredictable battery life and potential device shutdowns.
Innovation Solution
The system monitors the state of charge (SOC) of the battery and its rate of change, using a use profile to estimate remaining use time by categorizing device usage and updating baseline values based on usage patterns, with alerts provided when the remaining time approaches a threshold.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the mobile device provides access to more information and features (increased processing power, music/video playback, network search), then the functionality and versatility of the device is improved, but the power demand from the battery increases
Solution Approach 1:
The patent implements dynamic power management by continuously monitoring the state of charge (SOC) and rate of change of SOC to adaptively adjust device operations. The system dynamically transitions between different usage categories (e.g., display on/off, network connected/disconnected, audio playing) based on real-time battery status, allowing the device to maintain versatility while optimizing power consumption patterns.
2Productivity
If the device operates in high-power usage modes to meet user demands, then the performance and user experience is improved, but the remaining use time of the battery decreases
Solution Approach 1:
The patent employs feedback mechanisms by continuously monitoring battery SOC and rate of change, then using this information to predict remaining use time and provide early warnings to users. The system also uses feedback to adjust operational parameters dynamically, transitioning to lower-power modes when SOC thresholds are approached, thereby extending effective battery life while maintaining performance when energy is abundant.
Solution Approach 2:
The system performs preliminary actions by providing advance warnings to users before the battery is fully depleted. By monitoring SOC trends and predicting remaining use time, the device alerts users in advance, allowing them to take corrective actions such as connecting to a charger or adjusting usage patterns before complete power exhaustion occurs.
3Reliability
If the device provides accurate real-time battery status monitoring, then the reliability of power management is improved, but the complexity of the power management system increases
Solution Approach 1:
The patent implements self-service power management where the device autonomously monitors its own battery status, calculates SOC and rate of change, determines current usage category, and predicts remaining use time without requiring external intervention. The system automatically transitions between operational states and provides user alerts, reducing the need for complex external power management infrastructure while maintaining high reliability.
Data Source
AI summary
The present disclosure provides methods and systems for estimating the remaining use time of a battery of a mobile device. In some implementations, the method includes providing a use profile programmed in a memory of the mobile device, and monitoring a rate of change of a state of charge (SOC) of the battery. The rate of change of the SOC and the use profile are processed to affect a comparison therebetween, and the remaining use time is estimated based on the comparison.