Display Fan Speed Control via Temperature Thresholds
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Solution Overview
Problem
Existing display technologies face challenges in dynamic temperature management due to varying luminance and ambient temperatures, which affect the effectiveness of built-in fans in maintaining optimal operating conditions.
Innovation Solution
A device and method that utilize a temperature sensor, memory, and control module to adjust the rotation-speed of a display's fan based on set temperature thresholds and luminance, ensuring dynamic temperature management by comparing current temperatures with first and second setting-temperatures and adjusting fan operation accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a built-in fan is used to produce forced convection air current to lower the temperature of the display, then the temperature control is improved, but the device cannot adapt to varying luminance and ambient temperature conditions
Solution Approach 1:
The fan rotation speed is dynamically adjusted based on real-time temperature sensing and luminance detection. The control module modifies fan operation parameters according to varying display temperature and luminance conditions, enabling the system to adapt to different operating environments rather than using fixed fan control
Solution Approach 2:
A temperature sensor continuously monitors the display temperature and feeds this information back to the control module. The control module processes this feedback along with luminance data to determine appropriate fan speed adjustments, creating a closed-loop control system that adapts to changing conditions
2Temperature
If the fan rotation-speed is increased to cool the display, then the temperature management is improved, but the energy consumption increases
Solution Approach 1:
Instead of running the fan at full speed continuously, the system applies partial action by adjusting fan rotation speed to match actual cooling requirements. The fan operates at higher speeds only when temperature and luminance conditions demand additional cooling, otherwise it runs at lower speeds or remains off, reducing unnecessary energy consumption
Solution Approach 2:
The control module changes the fan operation parameter (rotation speed) based on varying temperature and luminance conditions. By dynamically adjusting this parameter rather than maintaining constant high-speed operation, the system achieves effective temperature management while minimizing energy consumption during periods of lower thermal load
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
This solution enables effective dynamic temperature management across a wide range of luminance and ambient temperatures, ensuring the display operates within optimal conditions by dynamically controlling the fan's rotation-speed.
Implementation Method 1
a temperature sensor for sensing a current temperature of the display
Implementation Method 2
the display can have a built-in fan to produce a forced convection air current so as to lower the temperature of the display
Data Source
AI summary
A device is suitable for controlling a rotation-speed of a fan of a display. The device includes a temperature sensor for sensing a current temperature of the display, a memory for storing the current temperature of the display and a first and a second setting-temperature and a control module coupled to the temperature sensor and the memory and adapted to couple to the fan of the display. The control module compares the current temperature of the display with the first and the second setting-temperatures and judging the variation of the current temperature of the display to control the rotation-speed of the fan. If the control module judges out the current temperature of the display sensed by the temperature sensor rises, the control module raises the rotation-speed of the fan when the rotation-speed of the fan is lower than a maximum rotation-speed.