Terminal Hardware Refresh Rate Adjustment via Frame Prediction
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Solution Overview
Problem
The battery life of smart mobile terminals is significantly reduced due to high power consumption by LCD screens, primarily because the hardware refresh rate is not aligned with the software frame rate, leading to unnecessary power dissipation.
Innovation Solution
A method and device that predict the future software frame rate by collecting real-time and historical data of the software graphic processing unit, allowing for dynamic adjustment of the hardware refresh frequency to match the software's expected frame rate, thereby optimizing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the hardware refresh rate is set to a fixed high frequency (e.g., 60 fps), then the display can handle high frame rate software, but the LCD screen consumes excessive power when the software frame rate is lower
Solution Approach 1:
The patent applies dynamics by making the hardware refresh rate adjustable rather than fixed. The system dynamically changes the refresh rate based on real-time software frame rate requirements, allowing the LCD to operate at lower frequencies when software demands are low, thus reducing power consumption while maintaining adequate display performance when needed
Solution Approach 2:
The patent changes the parameter of hardware refresh rate based on software frame rate conditions. By monitoring software frame rate and adjusting the hardware refresh rate parameter accordingly, the system optimizes power consumption by matching the refresh rate to actual display needs rather than maintaining a constant high rate
2Use of energy by moving object
If the hardware refresh rate is reduced to save power, then power consumption decreases, but the display may not keep up with high frame rate software requirements
Solution Approach 1:
The patent implements feedback by continuously monitoring the software frame rate and using this information to adjust the hardware refresh rate. This closed-loop control ensures that the refresh rate is increased when software requires high frame rates and decreased when power saving is prioritized, maintaining reliability while optimizing power consumption
Solution Approach 2:
The system dynamically adjusts the hardware refresh rate based on real-time software requirements, allowing it to adapt between power-saving mode and high-performance mode as needed, thus maintaining reliability across different operating conditions
3Use of energy by moving object
If the hardware refresh rate is constantly adjusted to match software frame rate, then power consumption is optimized, but the system complexity increases
Solution Approach 1:
The patent applies self-service by enabling the system to automatically monitor software frame rates and adjust hardware refresh rates without user intervention. The control system autonomously makes decisions about refresh rate adjustments based on software behavior patterns, reducing the need for complex user-facing controls while achieving power optimization
Data Source
AI summary
Disclosed are a method and device for adjusting the hardware refresh rate of a terminal, wherein the method includes: predicting the frame rate of the currently operating software of a terminal in a future preset time period; and adjusting the hardware refresh frequency of the terminal according to the predicted frame rate. The adjustment method automatically adjusts the hardware refresh rate, thus reducing the power consumption of a terminal.