Multi-Fan Control Timing for Faster Overheating Response
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Solution Overview
Problem
Conventional controllers are ineffective in instantly controlling multiple fans to reduce the temperature of heat-generating components in electronic equipment, leading to potential damage from overheating.
Innovation Solution
A multi-fan control system with a controller that outputs control signals with reading and writing commands to individual fans within time intervals, allowing sequential data acquisition and adjustment of fan operations based on operational state data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a conventional controller controls multiple fans synchronously, then the cooling effect is improved, but the response time to detect and adjust fan operations based on operational state data deteriorates
Solution Approach 1:
The controller segments the control process into distinct time intervals, with even time intervals dedicated to reading operational state data from fans and odd time intervals dedicated to writing control commands. This temporal segmentation allows the controller to efficiently manage multiple fans without confusion, improving both the speed of temperature response and the accuracy of fan operation control.
2Loss of information
If the controller reads operational state data from all fans simultaneously, then the data acquisition completeness is improved, but the control signal complexity and fan coordination difficulty increase
Solution Approach 1:
The controller employs periodic action by alternating between reading and writing time intervals. During even time intervals, it reads operational state data from all fans; during odd time intervals, it writes control commands to all fans. This periodic alternation ensures complete data acquisition while maintaining simple, coordinated control signals.
Solution Approach 2:
The controller performs preliminary action by reading operational state data from all fans during even time intervals before issuing control commands in the subsequent odd time intervals. This ensures that control decisions are based on complete and up-to-date information from all fans, improving both data acquisition completeness and control accuracy.
Data Source
AI summary
A multi-fan control system is provided. A controller, within each of a plurality of time intervals, outputs a control signal including a reading command to one of a plurality of fans, and outputs a control signal including a writing command to another of the plurality of fans. The controller, within each of the plurality of time intervals, only reads operation state data of the one of the plurality of fans that receives the control signal including the reading command, and writes operation control commands respectively into the plurality of fans.