Fan Control Using Temperature-Speed Tables for Mixed Fan Operation
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Solution Overview
Problem
Existing fan management systems in large storage or computing devices face challenges in accurately locating faulty fans, managing fans of different brands or versions, and controlling rotational speeds uniformly, leading to energy waste, performance issues, and potential resonance effects due to inconsistent fan operations.
Innovation Solution
A fan control system that utilizes temperature-fan speed tables and controllers to adjust rotational speeds based on ambient temperature and fan information, detects abnormal operations, and adjusts fan speeds to prevent energy waste and resonance, while maintaining efficient heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If fans are controlled synchronously to facilitate management, then ease of operation is improved, but energy waste increases and performance degradation occurs due to inconsistent fan characteristics
Solution Approach 1:
The patent divides the fan control system into individually controllable units, where each fan can be managed separately based on its specific characteristics and operational status. This segmentation allows for optimized energy consumption while maintaining management efficiency through centralized control architecture.
Solution Approach 2:
The control system dynamically adjusts fan rotational speeds based on real-time temperature monitoring and fan-specific characteristics. Instead of fixed synchronous control, the system adapts each fan's speed independently, optimizing energy consumption while maintaining effective heat dissipation.
2Temperature
If fan rotational speeds are increased to prevent high ambient temperature, then temperature control is improved, but power consumption increases and vibration-induced performance degradation occurs
Solution Approach 1:
The system dynamically adjusts fan speeds based on real-time temperature monitoring, activating fans only when necessary and at the minimum required speed. This dynamic control prevents unnecessary energy consumption while maintaining effective temperature management through demand-responsive operation.
Solution Approach 2:
The control system modifies operational parameters (rotational speed) based on temperature conditions and fan characteristics. By changing speed parameters individually for each fan rather than operating at fixed high speeds, the system achieves temperature control with optimized energy consumption.
3Temperature
If fan rotational speeds are increased to prevent high ambient temperature, then temperature control is improved, but vibration and resonance effects worsen affecting component performance
Solution Approach 1:
The system uses dynamic speed adjustment to operate fans at the minimum necessary rotational speeds rather than continuously high speeds. This dynamic control reduces vibration and resonance effects while maintaining temperature control, as fans only operate at higher speeds when actually needed for heat dissipation.
Solution Approach 2:
The control system obtains rotational speed information from temperature-fan speed tables that define optimal operating points. By referencing pre-determined speed profiles rather than continuously increasing speed, the system achieves temperature control while avoiding excessive vibration and resonance effects.
4Measurement precision
If maintenance personnel manually locate and manage fans, then measurement precision is improved for fault identification, but loss of time increases due to the large number of fans
Solution Approach 1:
The system implements automated monitoring with feedback mechanisms that track fan operational status, temperature conditions, and performance metrics. This automated feedback system enables rapid fault identification and precise location of problematic fans, eliminating the time-consuming manual inspection process while maintaining high accuracy.
Solution Approach 2:
The control system performs self-monitoring and automated fault detection, eliminating the need for manual fan-by-fan inspection. The system serves itself by continuously monitoring its own operational status and automatically identifying fans that require maintenance, significantly reducing maintenance time while preserving accurate fault location capability.
Data Source
AI summary
A fan control method, a processing device, and a fan control system are provided. The fan control method includes: obtaining at least one temperature-fan speed table and at least one current-fan speed table corresponding to each of at least one fan device; obtaining an estimated temperature value corresponding to a predetermined area according to a sensing result of at least one temperature sensor disposed in the predetermined area; obtaining rotational speed information of a target rotational speed of the at least one fan device according to the estimated temperature value and the at least one temperature-fan speed table; and providing the rotational speed information to a controller configured to control a fan speed in the at least one fan device.