Processor State-Based Power Management for Smooth Energy Saving

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Solution Overview

Problem

Existing energy-saving modes in operating systems of portable electronic devices cause non-smoothness or freezing during operation, leading to poor user experience due to inefficient power consumption settings.

Innovation Solution

A power management method and device that dynamically adjust power consumption based on predefined usage scenarios, selecting an appropriate mode based on processor state data to manage power efficiently and reduce freezing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If energy-saving mode is activated to reduce power consumption, then battery life is prolonged, but operation smoothness deteriorates causing freezing

Engineering Contradiction:
Improvepower consumptionVSAvoidoperation smoothness
Core Design Contradiction:
Use of energy by moving objectVSReliability

Solution Approach 1:

The patent implements dynamic power management by continuously monitoring processor state data and automatically switching between usage scenarios (power saving, balanced, performance) based on current operational conditions. This dynamic adjustment allows the system to optimize power consumption while maintaining operation smoothness by selecting appropriate performance levels in real-time rather than using a fixed energy-saving mode.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes power consumption parameters dynamically by adjusting processor frequency, voltage, and power states based on monitored conditions. The power management device modifies operational parameters such as CPU frequency scaling and power state transitions to achieve optimal balance between power savings and operational reliability.

Inventive Principle:
Principle #35Parameter changes

2Duration of action of moving object

If manual energy-saving mode setting is used to extend battery life, then power consumption is reduced, but user experience deteriorates due to freezing

Engineering Contradiction:
Improvebattery lifeVSAvoiduser experience
Core Design Contradiction:
Duration of action of moving objectVSEase of operation

Solution Approach 1:

The power management device operates autonomously by automatically monitoring processor state data and selecting appropriate usage scenarios without requiring manual user intervention. The system self-adjusts power settings based on current operational conditions, eliminating the need for users to manually configure energy-saving modes while maintaining both battery life and user experience.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system implements a feedback mechanism where processor state data is continuously monitored and fed back to the power management device. Based on this feedback, the system automatically adjusts power consumption settings to maintain optimal performance. This closed-loop control ensures that power savings are achieved without compromising user experience through freezing or operational issues.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS20250348397A1Power management method and power management device
Publication Date: 2025.11.13 ASUSTEK COMPUTER INC
  • US20250348397A1 patent drawing
  • US20250348397A1 patent drawing
  • US20250348397A1 patent drawing

AI summary

A power management method is provided. The power management method is applicable to an electronic device. The electronic device includes a processor, and includes an operating system installed therein. The operating system is configured with a first working mode and a second working mode. Power consumption corresponding to the second working mode is less than power consumption corresponding to the first working mode. The power management method includes: setting a plurality of usage scenarios with different power consumption settings; receiving an enabling instruction; monitoring a state of the processor to generate state data and notifying the operating system to operate in the second working mode, in response to the enabling instruction; and selecting one of the plurality of usage scenarios based on the state data, and managing power consumption of the electronic device based on the selected usage scenario. A power management device is further provided.