Downstream Thermal Sensor Verification for Redundant Sensing
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Solution Overview
Problem
Existing computer systems face issues with thermal sensor malfunctions, leading to unnecessary cooling actions and increased costs due to the lack of effective verification mechanisms for overheat situations, particularly when multiple thermal sensors are required for redundancy.
Innovation Solution
Implementing a redundant thermal sensing system with downstream sensors that measure airflow temperature, allowing the central controller to verify component temperature readings and identify malfunctioning sensors without the need for redundant sensors on individual components, thereby reducing costs and improving accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If redundant thermal sensors are installed on each component, then sensor malfunction reliability is improved, but system cost increases
Solution Approach 1:
The patent combines multiple thermal sensing functions into a single downstream sensor location. Instead of placing redundant sensors on each component, one downstream sensor monitors the aggregate thermal state of multiple components in the airflow path, reducing the total number of sensors while maintaining system-level thermal monitoring capability
Solution Approach 2:
The downstream thermal sensor serves multiple components simultaneously, performing universal thermal monitoring for all components in its detection range. This multi-functional approach allows a single sensor to replace multiple component-specific sensors, reducing cost while providing redundant monitoring capability
2Measurement precision
If thermal sensors are used to monitor component temperature, then temperature detection accuracy is improved, but false alarms from sensor malfunction increase
Solution Approach 1:
The system implements feedback by continuously comparing temperature readings from multiple components monitored by the downstream sensor. When a component reports high temperature, the system verifies this reading against the downstream sensor's measurement of the same airflow, providing feedback validation that reduces false alarms from malfunctioning sensors
Solution Approach 2:
The downstream sensor provides preliminary verification of temperature readings before triggering cooling actions. By pre-checking the validity of component temperature reports against downstream airflow measurements, the system prevents false cooling actions that would result from sensor malfunctions
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 approach enhances the reliability of thermal management by verifying overheat situations and identifying sensor malfunctions, reducing unnecessary cooling actions and costs while maintaining system performance and reducing fan noise and decreased performance issues.
Implementation Method 1
downstream thermal sensor that is downstream from the component as defined by airflow
Data Source
AI summary
A computer program product for redundant thermal sensing is configured to determine, based on component temperature information of a thermal sensor associated with a component, that a temperature of the component has surpassed a temperature threshold. The program code can be configured to identify a thermal sensor that is downstream from the component as defined by airflow. The program code can determine downstream temperature information as measured by the downstream sensor. The program code can be configured to compare the downstream temperature information and the component temperature information.