Multi-Sensor Thermal Mode Control for Electronic Devices
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Solution Overview
Problem
Existing temperature management systems in network communication devices are ineffective in managing multiple heat sources and do not account for ambient temperature changes, leading to potential component failure and reduced performance.
Innovation Solution
A method and apparatus that utilize a set of operating states for sensors, defined by temperature threshold values, to determine and adjust operational modes, including fan control and component throttling, to manage temperature effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the device size is reduced, then the device becomes more compact and portable, but the air space for heat dissipation is reduced resulting in higher ambient temperatures
Solution Approach 1:
The patent divides the temperature management into multiple sensor locations throughout the device, each monitoring specific zones. This segmentation allows targeted cooling strategies for different heat-generating components, maximizing cooling efficiency in the limited space available.
Solution Approach 2:
The system dynamically adjusts fan speed and component operational states based on real-time temperature readings from multiple sensors. This dynamic response allows the device to maintain lower temperatures by activating cooling only when and where needed, rather than continuously cooling the entire device.
2Productivity
If high power electronic components are used to increase performance, then the device performance increases, but the heat generated by these components further increases the ambient temperature
Solution Approach 1:
The system implements dynamic thermal management by monitoring temperatures from multiple sensors and adjusting component operational states in real-time. High-power components are throttled or shut down based on localized temperature conditions, allowing the device to maintain high performance when temperatures are acceptable while preventing thermal runaway.
Solution Approach 2:
The patent employs feedback control where temperature sensor readings are continuously monitored and fed back to adjust fan speed and component power states. This closed-loop control ensures that performance is optimized while maintaining temperatures within safe operating limits.
3Temperature
If a fan is used to force air in and out of the device, then the ambient temperature can be lowered, but the fan is limited in effectiveness for large temperature ranges and cannot adjust operational characteristics of heat generating components
Solution Approach 1:
The patent combines multiple temperature management mechanisms into a unified system: passive heat sinks, active fan cooling, and dynamic component throttling. This merged approach allows the system to handle a wide temperature range by engaging different mechanisms appropriate to the severity of the thermal condition.
Solution Approach 2:
The system dynamically switches between different cooling strategies based on temperature thresholds. At mild elevations, component throttling is used; at moderate elevations, fan speed is increased; at severe elevations, both fan and component control are activated. This dynamic multi-strategy approach overcomes the limitations of single-method cooling.
4Temperature
If operational control mechanisms are included in electronic components to reduce operation based on internal temperature, then heat from that component is reduced, but the mechanism cannot take into account heat generated by other components
Solution Approach 1:
The patent implements a universal temperature management controller that receives inputs from multiple sensors throughout the device and coordinates control of multiple components. This centralized controller considers heat generation from all components when making throttling decisions, rather than each component operating independently based solely on its own temperature.
Solution Approach 2:
The system introduces a central controller as an intermediary that mediates between temperature sensors and component control. This intermediary aggregates temperature data from all locations, considers the cumulative thermal load from all heat-generating components, and coordinates throttling decisions to manage overall system temperature rather than individual component temperature alone.
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
Effectively controls temperature by adjusting operational modes based on sensor states, reducing heat and preventing component failure, while maintaining device performance.
Implementation Method 1
Some of the designs may utilize fans to force air in and/or out of the interior of the device in order to lower the ambient temperature
Implementation Method 2
Some of the designs may determine the operation of the fan based on one or more temperature values from sensors located in the device
Data Source
AI summary
A method and apparatus are described that include receiving data values from a plurality of sensors located in the apparatus operating in a normal mode. The method and apparatus further include determining if at least one sensor has entered a first elevated thermal operating state from a normal thermal operating state and providing a notification to enter a first elevated thermal mode of operation in the device if it is determined that the at least one sensor has entered the first elevated thermal operating state. The method and apparatus additionally include determining, while operating in a first elevated thermal mode of operation, if the operating state of all sensors have entered a normal thermal operating state and providing a notification to enter a normal mode of operation for the device if it is determined that all of the sensors have entered a normal thermal operating state.