Dynamic Fan Speed Control for Computing Resource Allocation
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Solution Overview
Problem
Existing information handling systems rely solely on specific RPM thresholds to regulate fan speeds, neglecting user intention and other factors, which limits dynamic adjustment of cooling and resource allocation.
Innovation Solution
An information handling system determines a fan speed value based on current and other factors, transmitting a derived fan speed value to the operating system scheduler, allowing for dynamic manipulation of fan speeds to influence computing resource allocation, considering user preferences, system context, and thermal modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If fan speed is regulated solely based on RPM thresholds, then the control mechanism is simple, but the system cannot dynamically adjust cooling and resource allocation based on user intention and system conditions
Solution Approach 1:
The patent implements dynamic fan speed adjustment by transitioning from static RPM thresholds to a dynamic control mechanism that continuously monitors multiple factors including temperature, user preferences, system workload, and environmental conditions. The fan speed is adjusted in real-time based on the current system state and user intentions, enabling adaptive cooling and resource allocation strategies.
Solution Approach 2:
The system changes the parameter basis for fan control from fixed RPM thresholds to a multi-parameter evaluation model. This includes monitoring temperature levels, fan acoustic levels, user preferences, system context, and thermal modes to determine optimal fan speed values. By changing the control parameters to include multiple factors, the system achieves more versatile and adaptive behavior.
2Productivity
If fan speed is dynamically adjusted based on multiple factors, then cooling efficiency and resource allocation improve, but the system complexity increases
Solution Approach 1:
The fan control system is designed to perform multiple functions simultaneously: it regulates cooling, manages acoustic levels, allocates computing resources, and responds to user preferences. By making the control mechanism multi-functional, the system achieves improved productivity and cooling efficiency without proportionally increasing complexity, as a single unified controller handles all these tasks.
Solution Approach 2:
The system implements feedback mechanisms by continuously monitoring temperature, fan speed, acoustic levels, and system workload, then using this information to adjust fan speed and resource allocation in real-time. This closed-loop feedback enables the system to optimize cooling efficiency and resource management dynamically, improving productivity while keeping the control logic manageable through systematic feedback processing.
3Temperature
If fan speed is increased to improve cooling performance, then thermal management improves, but acoustic noise increases
Solution Approach 1:
The system changes the fan speed parameter dynamically based on multiple factors including temperature levels, acoustic level thresholds, user preferences for noise sensitivity, and system thermal modes. By adjusting fan speed as a variable parameter rather than maintaining fixed high speeds, the system achieves effective thermal management while minimizing acoustic noise generation.
Solution Approach 2:
The patent applies different cooling strategies to different system components and operating conditions. Instead of uniformly increasing fan speed across all scenarios, the system adjusts fan operation locally based on specific thermal conditions, user preferences, and acoustic level requirements, achieving effective cooling while minimizing noise in appropriate contexts.
Data Source
AI summary
An information handling system determines a fan speed value based on a current fan speed value and at least one factor, and transmits the fan speed value instead of the current fan speed value to an operating system scheduler. The system may also determine a fan acoustic level based on the fan speed value, and perform an action based on the fan acoustic level.