Fan Control System Using Dual Average Temperature Compensation
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Solution Overview
Problem
Existing fan control systems require multiple operating tables for different modes, leading to increased storage space and costs, as they struggle to efficiently adjust fan rotational speeds based on varying temperature conditions.
Innovation Solution
A fan control system that includes a temperature sensor, a calculating unit, and a logic controller to calculate and select between two average temperatures, using a single operating table to adjust fan speed, thereby reducing storage needs and costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple operating tables are used for different operating modes, then the fan control system can accurately control fan speed in different modes, but the storage space and system costs increase
Solution Approach 1:
The patent merges multiple operating tables (first operating table for normal mode and second operating table for high-temperature mode) into a single unified operating table. The operating table stores temperature intervals and corresponding fan speeds that cover both normal and high-temperature operating ranges. This consolidation eliminates the need for separate tables while maintaining the ability to accurately control fan speed across all operating conditions, directly resolving the contradiction between measurement precision and storage space requirements
Solution Approach 2:
The unified operating table is designed to serve multiple functions: it handles both normal temperature control and high-temperature control scenarios within a single data structure. The table contains temperature intervals that span the entire operating range, allowing the system to universally apply one table for all operating modes, thereby reducing storage space while preserving accurate temperature-based fan control capabilities
2Adaptability or versatility
If multiple operating tables are used for different operating modes, then the fan control system can adapt to different modes, but the system complexity and costs increase
Solution Approach 1:
The patent combines the functionality of multiple mode-specific operating tables into a single unified operating table that serves all operating modes. This merger simplifies the system architecture by eliminating the need for the controller to manage multiple separate tables, reducing computational overhead, and lowering system complexity while maintaining full adaptability to different operating conditions through the comprehensive temperature intervals in the unified table
Solution Approach 2:
The unified operating table is designed with universal applicability across all operating modes. It contains temperature intervals and corresponding fan speeds that cover the entire temperature range from normal to high-temperature operations. This single table replaces multiple mode-specific tables, reducing system complexity while preserving the ability to adapt to different operating conditions through its comprehensive and unified data structure
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system efficiently adjusts fan rotational speeds across different operating modes using a single operating table, enhancing temperature control and reducing storage requirements and costs.
Implementation Method 1
a first temperature sensor continuously senses temperatures of a device during a time period, so as to obtain a plurality of sampled temperatures
Implementation Method 2
the calculating unit selects N1 latest sampled temperatures and N2 latest sampled temperatures from the sampled temperatures, and calculates a first average temperature according to the N1 sampled temperatures and a second average temperature according to the N2 sampled temperatures
Implementation Method 3
the memory unit is configured to output a rotational speed control signal to the fan corresponding to the operating table according to the compensation temperature
Data Source
AI summary
A fan control system includes a fan, a first temperature sensor, a calculating unit, a logic controller, and a memory unit. The first temperature sensor continuously senses temperatures of a device during a time period, in order to obtain a plurality of sampled temperatures. The calculating unit selects N1 latest sampled temperatures and N2 latest sampled temperatures from the sampled temperatures, and calculates a first average temperature according to the N1 sampled temperatures and a second average temperature according to the N2 sampled temperatures. N1 and N2 are positive integers. The logic controller is configured to select one of the first average temperature and the second average temperature to output as a compensation temperature. The memory unit is configured to store an operating table, and configured to output a rotational speed control signal to the fan corresponding to the operating table according to the compensation temperature.