Terminal Device Temperature Control via Independent CPU and Charging Chip Segmentation
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Solution Overview
Problem
Existing temperature control methods for terminal devices, such as smartphones, inadequately control the operating efficiency of CPUs and charging chips separately, leading to inaccurate heating situation management and affected user experiences.
Innovation Solution
A method and apparatus for temperature control that obtain and utilize separate temperature information from the CPU and charging chip circuit boards to adjust their operating frequencies and charging currents within specific ranges, using temperature sensors and weighting coefficients to ensure precise temperature management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single fitting temperature is used to control both CPU and charging chip, then the control system is simple, but the temperature control accuracy is poor
Solution Approach 1:
The patent divides the terminal device into multiple temperature zones by placing separate temperature sensors on different circuit boards (CPU circuit board and charging chip circuit board). This segmentation allows independent temperature monitoring and control for each component, resolving the contradiction between system simplicity and control accuracy.
2Temperature
If CPU operating frequency is reduced to lower temperature, then CPU temperature is controlled, but charging current is also reduced affecting charging efficiency
Solution Approach 1:
The patent implements independent control systems for CPU and charging chip by separating temperature sensors and control logic. When CPU temperature is high, only CPU frequency is reduced while charging current remains unaffected. Conversely, when charging chip temperature is high, only charging current is reduced. This segmentation eliminates the coupled reduction effect and maintains overall system productivity.
Solution Approach 2:
The patent applies different control strategies to different components based on their specific temperature conditions. The CPU control policy focuses on frequency adjustment while the charging chip control policy focuses on current adjustment. This localized quality approach ensures each component is optimized independently without negatively impacting other components' performance.
3Temperature
If charging current is reduced to lower charging chip temperature, then charging chip temperature is controlled, but CPU operating frequency is also reduced affecting processing performance
Solution Approach 1:
The patent separates the control systems for CPU and charging chip, allowing independent adjustment of charging current without affecting CPU operating frequency. This segmentation enables the charging chip temperature to be controlled while maintaining CPU processing performance unaffected.
Solution Approach 2:
The patent implements component-specific control policies where the charging chip responds to temperature changes through current adjustment while the CPU maintains its frequency. This local quality approach ensures that temperature control actions are localized to the specific component experiencing thermal issues, preventing cascading performance degradation.
4Measurement precision
If temperature sensors are placed close to CPU and charging chip, then temperature measurement accuracy is improved, but thermal interference between sensors is increased
Solution Approach 1:
The patent extracts the temperature sensing function from a centralized location and distributes separate temperature sensors to different circuit boards (CPU circuit board and charging chip circuit board). This extraction allows each sensor to measure local temperatures accurately while being physically separated enough to minimize thermal interference between them.
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 allows for independent control of CPU and charging chip temperatures, preventing overheating and improving user experiences by maintaining optimal operating efficiencies and preventing thermal interference between components.
Implementation Method 1
acquiring the temperatures of the one or more acquisition positions of the first circuit board and the second circuit board by one or more temperature sensors respectively
Data Source
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AI summary
A method and an apparatus of temperature control, and a storage medium. The method includes: obtaining (S101) first temperature information of a first circuit board in the terminal device, in which the first circuit board is provided with a central processing unit CPU; obtaining (S102) second temperature information of a second circuit board in the terminal device, in which the second circuit board is provided with a charging chip; controlling (S103) an operating frequency of the CPU according to the first temperature information to enable a temperature of the CPU to be within a first temperature range, and controlling a charging current of the charging chip according to the second temperature information to enable a temperature of the charging chip to be within a second temperature range.