Dynamic Processor Load Threshold for Mobile Thermal Management

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Solution Overview

Problem

High power consumption and elevated temperatures in processors of mobile devices lead to reduced battery life and potential malfunctions, as existing technologies fail to effectively manage processor loading to balance performance and energy efficiency.

Innovation Solution

A control method that dynamically sets a threshold loading level for processing cores based on device status, using a sensor module to monitor temperature and electricity levels, and a management unit to distribute load among processing cores, ensuring optimal performance while preventing overheating and conserving battery life by switching tasks between high-performance and low-power cores.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If high-performance processors are used to improve device performance, then processing speed and functionality are enhanced, but power consumption increases and device temperature rises

Engineering Contradiction:
Improveprocessing speedVSAvoidpower consumption
Core Design Contradiction:
ProductivityVSUse of energy by moving object

Solution Approach 1:

The processor is segmented into multiple processing cores with different performance levels (high-performance cores and low-power cores). The system divides processing tasks and assigns them to appropriate cores based on device status, allowing high-performance processing when needed while using energy-efficient cores for routine tasks, thus resolving the contradiction between processing speed and power consumption.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system dynamically adjusts the threshold loading level for high-performance cores based on real-time device status (temperature, battery level). When the device is in good condition (cool temperature, sufficient battery), the threshold is higher allowing more tasks on high-performance cores. When the device approaches thermal or power limits, the threshold is lowered to reduce load on high-performance cores, dynamically balancing performance and energy consumption.

Inventive Principle:
Principle #15Dynamics

2Productivity

If high-performance processors are used to improve processing capability, then device functionality is enhanced, but device temperature increases causing malfunctions

Engineering Contradiction:
Improveprocessing capabilityVSAvoiddevice temperature
Core Design Contradiction:
ProductivityVSTemperature

Solution Approach 1:

The system continuously monitors device temperature and battery level, using this feedback to dynamically adjust the threshold loading level for high-performance cores. When temperature rises or battery level drops, the feedback mechanism lowers the threshold, reducing the load on high-performance cores and allowing the device to cool down or conserve power, thus preventing thermal malfunctions while maintaining processing capability when conditions permit.

Inventive Principle:
Principle #23Feedback

3Duration of action of moving object

If dynamic threshold adjustment is implemented to manage power consumption, then battery life is extended, but system complexity increases

Engineering Contradiction:
Improvebattery lifeVSAvoidsystem complexity
Core Design Contradiction:
Duration of action of moving objectVSDevice complexity

Solution Approach 1:

The system changes the parameter of threshold loading level dynamically based on device status (temperature, battery level). This parameter change allows the system to extend battery life by reducing load on high-performance cores when appropriate, while maintaining a relatively simple control structure that monitors status parameters and adjusts the threshold accordingly, balancing battery life extension with acceptable system complexity.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS9904563B2Processor management
Publication Date: 2018.02.27 HTC CORP
  • US9904563B2 patent drawing
  • US9904563B2 patent drawing
  • US9904563B2 patent drawing

AI summary

A control method is disclosed. The control method is suitable for an electronic device including first processing cores. The control method includes operations as follows. A device status of the electronic device is monitored. A threshold loading level of the first processing cores is dynamically set according to the device status. A loading management of multi-processor is performed according to a current loading level of the processing cores and the threshold loading level.