Dynamic Temperature Threshold for ICT Cooling Abnormality Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing abnormality detection methods for ICT equipment cooling functions, such as filter clogging, are ineffective when the operational status of the equipment is variable, as they fail to accurately detect issues due to changing heat generation rates.
Innovation Solution
An abnormality detection device comprising an estimating unit that calculates the upper limit of possible temperatures based on operational status and intake-air temperature, and a determining unit that identifies abnormalities when detected temperatures exceed these limits, allowing for accurate detection of cooling function issues like filter clogging even with variable operational statuses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a fixed allowable temperature is used for CPU temperature comparison, then the detection method is simple, but it cannot accurately detect abnormalities when operational status varies
Solution Approach 1:
The patent applies dynamics by making the allowable temperature dynamic rather than fixed. The allowable temperature is adjusted based on the operational status (CPU load) of the equipment. When CPU load increases, the allowable temperature increases accordingly, allowing the system to adapt to varying operational conditions and maintain accurate abnormality detection across different states.
Solution Approach 2:
The patent changes the parameter of allowable temperature based on operational status. Instead of using a constant temperature threshold, the system modifies the temperature parameter according to CPU load levels, enabling accurate detection of filter clogging and cooling fan abnormalities regardless of whether the equipment is under light or heavy load.
2Measurement precision
If CPU load-based temperature adjustment is implemented, then abnormality detection accuracy improves, but the detection system becomes more complex
Solution Approach 1:
The patent uses feedback by continuously monitoring CPU load and adjusting the allowable temperature based on this feedback. The operational status detecting unit provides real-time information about CPU load, which feeds into the temperature calculation to dynamically adjust the threshold, creating a closed-loop system that maintains accuracy without requiring complex external controls.
Solution Approach 2:
The system performs self-service by automatically adjusting its own detection parameters based on its operational state. The abnormality detection device uses its own CPU load information to set appropriate temperature thresholds, eliminating the need for external calibration or complex manual configuration while maintaining high detection accuracy.
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
Enables secure detection of cooling function abnormalities, such as filter clogging, and reduces power consumption by adjusting fan rotations based on calculated temperature ranges, ensuring efficient operation across varying operational conditions.
Implementation Method 1
a temperature sensor configured to detect a temperature in a predetermined position of the ICT equipment
Implementation Method 2
Rotation of the cooling fan allows air to be taken in through an inlet opening formed on the case, and the inside of the case is thereby cooled down
Implementation Method 3
Rotation of the cooling fan allows air to be taken in through an inlet opening formed on the case, and the inside of the case is thereby cooled down
Data Source
AI summary
An estimating unit 51 estimates the upper limit of possible temperatures in a predetermined position of ICT equipment when the quantity of intake air into the ICT equipment is appropriate, based on the result of detection by an operational status detecting unit that detects the operational status of the ICT equipment and the result of detection by an intake-air temperature sensor 62 that detects the temperature of intake air of the ICT equipment. A determining unit 52 determines that an abnormality is occurring when the result of detection by a temperature sensor 63 that detects the temperature in the predetermined position is beyond the upper limit estimated by the estimating unit.