Electronic Apparatus Power-Mode Switching for Accurate Remaining-Time Display
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Solution Overview
Problem
Existing electronic devices face challenges in extending available time when power consumption exceeds battery capacity, leading to mismatched remaining time displays and premature shutdowns due to increased reference voltages.
Innovation Solution
The electronic apparatus adjusts its power modes to reduce consumption by disabling certain functions, recalculates remaining time based on corrected coefficients, and provides user notifications to switch to lower power modes when necessary, ensuring accurate time displays and extended usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the electronic apparatus operates in a high-power mode to provide more functions, then the functionality and performance are improved, but the available usage time is reduced due to higher power consumption
Solution Approach 1:
The electronic apparatus dynamically switches between first and second operating modes based on real-time monitoring of remaining time. The control unit automatically transitions from a high-power first mode to a low-power second mode when the remaining time falls below a threshold, optimizing the balance between functionality and usage duration without user intervention.
Solution Approach 2:
The system changes the power consumption parameter by switching operating modes. When remaining time is sufficient, the apparatus operates in the first mode with higher power consumption and more functions. When remaining time drops below the threshold, it transitions to the second mode with reduced power consumption, effectively extending available usage time.
2Ease of operation
If the electronic apparatus continues operating in the first mode without switching, then the user experience and functionality are maintained, but the available time is not extended and shutdown occurs prematurely
Solution Approach 1:
The control unit continuously monitors the remaining time and provides feedback to the mode switching control. When the remaining time falls below the threshold, the system automatically switches to the second mode, creating a closed-loop control system that adapts to battery status and extends usage time without requiring user awareness or action.
Solution Approach 2:
The electronic apparatus performs self-service by automatically managing its own power consumption. The control unit autonomously decides when to switch modes based on remaining time monitoring, eliminating the need for user intervention and ensuring the apparatus serves itself to maximize available usage time.
3Measurement precision
If the remaining time is not accurately reflected due to increased reference voltage, then the display shows mismatched information, but the actual battery capacity is depleted sooner causing unexpected shutdowns
Solution Approach 1:
The system performs preliminary switching to the second mode before the battery is completely depleted. By monitoring remaining time and switching proactively when it falls below the threshold, the system prevents the reference voltage from increasing to problematic levels, thereby maintaining both display accuracy and shutdown stability.
Data Source
AI summary
An electronic apparatus includes: an acquisition unit configured to acquire information on a remaining time representing a remaining usable time of the electronic apparatus; and a control unit configured to perform control to set any of a plurality of modes including a first mode and a second mode having power consumption of the electronic apparatus that is lower than power consumption of the electronic apparatus in the first mode, wherein the control unit performs processing to provide notification to prompt a user to switch from the first mode to the second mode in a case where the remaining time corresponding to the information acquired by the acquisition unit is less than a threshold and a predetermined condition for switching from the first mode to the second mode is satisfied in the first mode.