Dynamic Sensor Mode Switching for Power Optimization
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Solution Overview
Problem
Existing methods for reducing power consumption in information processing devices and sensors, such as controlling detection frequency based on sensor accuracy, are insufficient and result in continuous power usage even when sensors are not effectively utilized.
Innovation Solution
An information processing device that acquires sensing data and changes its mode based on the data, adjusting the sensors, sampling frequency, and processor usage to optimize power consumption by selectively activating and deactivating sensors and changing settings according to the user's motion state.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the sensor is used continuously to ensure accurate detection, then the detection accuracy is maintained, but the power consumption increases
Solution Approach 1:
The patent implements dynamic sensor control by switching between different operation modes (first mode with high detection frequency and second mode with low detection frequency) based on the determined motion state. The sensor operates continuously in the first mode when motion is detected, and enters a low-power state in the second mode when no motion is present, thereby adapting the detection frequency to actual needs and reducing unnecessary power consumption while maintaining detection accuracy when required.
Solution Approach 2:
The patent changes the operational parameters of the sensor based on the determined state by switching between different detection frequencies. When the determination unit identifies a specific motion state, the sensor operates at a higher detection frequency to capture detailed motion data; when motion is absent or minimal, the detection frequency is reduced, thereby optimizing the balance between measurement precision and power consumption through parameter adjustment.
2Measurement precision
If the detection frequency of the sensor is increased to improve accuracy, then the measurement precision is improved, but the power consumption increases
Solution Approach 1:
The patent dynamically adjusts the sensor's detection frequency based on the determined motion state. In the first operation mode, the sensor performs detection at a high frequency to ensure accurate capture of motion data. In the second operation mode, the detection frequency is reduced when motion is not present. This dynamic adjustment allows the system to maintain high measurement precision when needed while minimizing energy loss during periods of inactivity.
Solution Approach 2:
The patent implements periodic switching between different detection frequencies based on the determined state. The sensor alternates between high-frequency detection periods (first mode) and low-frequency detection periods (second mode) according to the motion state determined by the determination unit. This periodic action pattern allows the system to achieve accurate measurements during active periods while reducing power consumption during inactive periods.
3Reliability
If the sensor is activated continuously to ensure reliable detection, then the reliability is improved, but the power consumption increases
Solution Approach 1:
The patent employs dynamic mode switching to maintain detection reliability while optimizing power consumption. The sensor operates in the first mode with high detection frequency when the determination unit identifies motion states that require reliable detection. When motion is absent or the system transitions to the second mode, the sensor operates at lower frequency, reducing power consumption while maintaining sufficient reliability for the current operational context.
Data Source
AI summary
Provided is an information processing device that includes an acquisition unit configured to acquire sensing data and a mode changing unit configured to change a mode on a basis of the sensing data. The acquisition unit changes sensing data to be acquired on a basis of the change of the mode.