Embedded Controller Power Management for Dual Operating Systems
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Solution Overview
Problem
Portable electronic devices with dual operating systems, such as Windows mobile OS and Windows OS, face inefficiencies in power management, leading to increased power consumption and reduced battery life due to the wastage of power supplied to inactive operating systems.
Innovation Solution
An embedded controller is used to adjust power supply based on the working states of the operating systems and user input, keeping the more power-efficient Windows mobile OS alive while switching the Windows OS to a non-working state after a preset idle time, thereby optimizing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If both operating systems are kept alive to ensure quick switching and availability, then system responsiveness is improved, but power consumption increases
Solution Approach 1:
The patent implements dynamic power management by changing the power state of operating systems based on usage patterns. The embedded controller monitors which operating system is currently active and adjusts power supply accordingly, transitioning from a static power supply model to a dynamic one that adapts to operational needs.
Solution Approach 2:
The patent changes the power supply parameter dynamically by adjusting the power state of operating systems between active and suspended states. The embedded controller modifies power distribution based on real-time operational status, allowing the system to optimize between responsiveness and power consumption.
2Adaptability or versatility
If power is supplied to both operating systems simultaneously, then both systems are available for immediate use, but power waste increases
Solution Approach 1:
The patent extracts unnecessary power supply from the inactive operating system by using the embedded controller to suspend power delivery to the currently non-active system. This allows the system to maintain only the necessary power supply to the active operating system while keeping the inactive one in a low-power or off state.
Solution Approach 2:
The system performs self-power management through the embedded controller that automatically adjusts power distribution based on operational status. The system monitors which operating system is active and autonomously adjusts power supply without requiring user intervention, optimizing energy efficiency.
3Productivity
If a processor is allocated to each operating system, then both operating systems can execute tasks independently, but power consumption increases due to redundant processor operation
Solution Approach 1:
The patent merges the processor resources by having a single processor that can execute tasks for either operating system depending on which one is active. The embedded controller coordinates task distribution, allowing the same processor to serve both operating systems without requiring separate dedicated processors for each.
Solution Approach 2:
The processor is designed with multi-functionality to handle tasks from either operating system. The embedded controller manages task scheduling to ensure the processor can efficiently execute tasks for the active operating system while maintaining the ability to switch between operating systems without requiring dedicated processor resources for each.
Data Source
AI summary
A system and an electronic device having multiple operating systems and an operating method thereof are provided. The electronic device includes a display and a system having a first operating system, a second operating system, and an embedded controller. The first operating system consumes less power than the second operating system. The embedded controller receives an input signal to switch between the first operating system and the second operating system and display an interface of the switched operating system on a screen of the display. The first operating system and the embedded controller remain in an alive state after the electronic device is turned on, and the second operating system enters a non-working state after a preset idle time.