Staged Detection Module Activation for Portable Terminal Power Reduction
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Solution Overview
Problem
The limited battery capacity of portable terminals leads to reduced usage time due to high power consumption when operating multiple detection modules simultaneously, as existing techniques do not adequately consider the power consumption of these modules.
Innovation Solution
A method for determining the activation sequence of detection modules based on their power consumption, where modules with lower power consumption are activated first, and those with higher power consumption are activated only when necessary, optimizing the sequence to minimize overall power usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple detection modules are operated simultaneously to detect various states, then the detection capability and functionality are improved, but the power consumption increases and battery life is reduced
Solution Approach 1:
The detection modules are divided into different groups based on their power consumption characteristics. High-power modules (GPS, acceleration sensor) are segmented from low-power modules (microphone, camera), allowing selective activation of only the necessary modules for each specific detection task, thereby reducing overall power consumption while maintaining detection capability.
Solution Approach 2:
The system dynamically determines the activation sequence of detection modules based on the specific detection conditions and requirements. Rather than operating all modules simultaneously, the controller activates modules in a determined sequence, enabling high-power modules to be activated only when and where needed, thus optimizing power consumption adaptively.
2Measurement precision
If high-power detection modules are activated to improve detection accuracy, then the detection precision is improved, but the battery usage time is shortened
Solution Approach 1:
Instead of activating all detection modules simultaneously, the system activates only the necessary modules in a determined sequence based on the specific detection task. This partial action approach ensures that high-power modules are activated only when needed for precise detection, rather than continuously, thereby extending battery usage time while maintaining detection precision when required.
Solution Approach 2:
The system changes the operational parameters of detection modules by controlling their activation timing and sequence. High-power modules are activated only during specific time periods when precise detection is needed, rather than operating continuously, thus optimizing the balance between detection precision and battery duration.
Data Source
AI summary
This activation method includes: determining a sequence of activation of plural detection modules each of which is configured to detect a state, for a first condition related to results of detection by the plural detection modules; first activating a detection module that is a first in the sequence; and second activating a certain detection module other than the detection module that is the first in the sequence, upon detecting that a result of detection by a first detection module whose turn in the sequence is immediately before a turn of the certain detection module satisfies a second condition which corresponds to the first detection module and is included in the first condition.