Predicting Outside Temperature Using Internal Component Thermal Data
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Solution Overview
Problem
Portable electronic devices face challenges in accurately predicting outside temperatures due to variable current consumption and temperature changes among internal components, making it difficult to establish a reliable correlation between power consumption and temperature data.
Innovation Solution
An electronic device equipped with multiple temperature sensors measures the temperatures of various components and uses a prediction model to accurately predict outside temperatures by calculating temperature differences and reflecting these values in a specified equation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single temperature sensor is used to measure outside temperature, then the device complexity is reduced, but the measurement precision deteriorates due to temperature variations among different components
Solution Approach 1:
The patent divides the temperature measurement function into multiple segments by placing temperature sensors at different locations within the electronic device (e.g., near processor, memory, battery). Each sensor measures the temperature of its local component, and the processor integrates these multiple measurements to calculate the outside temperature, thereby improving measurement precision while maintaining reasonable device complexity
Solution Approach 2:
The patent combines multiple temperature measurements from different components into a single outside temperature prediction. The processor merges the temperature data from various sensors, applies correction factors based on component operating conditions, and produces a unified outside temperature estimate, resolving the contradiction between using multiple sensors and maintaining simple system design
2Measurement precision
If current consumption data is used to establish temperature correlation, then the measurement capability is enhanced, but the reliability deteriorates due to variable current consumption patterns
Solution Approach 1:
The patent performs preliminary calibration by establishing the relationship between current consumption and temperature under controlled conditions before actual operation. The processor stores correction factors and calibration data that are applied during normal operation, allowing the system to reliably convert current consumption measurements into temperature estimates even when operating conditions vary
Solution Approach 2:
The patent changes the approach from using absolute current consumption values to using relative changes in current consumption. By monitoring how current consumption changes over time and comparing these changes against pre-established correlations, the system achieves more reliable temperature measurements that are independent of varying operating conditions and workload patterns
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 improves the accuracy of outside temperature prediction, enabling more precise performance of functions that rely on ambient temperature data.
Implementation Method 1
a first temperature sensor configured to measure the temperature of the at least one first component
Implementation Method 2
a second temperature sensor configured to measure the temperature of the at least one second component
Data Source
AI summary
According to an embodiment, an electronic device includes: at least one first component and at least one second component arranged in an internal space of the electronic device wherein the first and second components have temperatures that vary differently depending on the operation of the electronic device, a first temperature sensor configured to measure the temperature of the at least one first component, a second temperature sensor configured to measure the temperature of the at least one second component, a memory, and at least one processor operatively connected to the at least one first component, the at least one second component, the first temperature sensor, the second temperature sensor, and the memory, wherein at least one processor is configured to: identify a prediction model related to prediction of the outside temperature stored in the memory, acquire a first temperature of the at least one first component through the first temperature sensor according to a specified period, acquire a second temperature of the at least one second component through the second temperature sensor according to a specified period, and predict the outside temperature corresponding to the acquired first temperature and the acquired second temperature based on the identified prediction model.