Dynamic GPS Sampling Rate Adjustment for Power Efficiency
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Solution Overview
Problem
Terminal devices with constant GPS sampling rates experience high power consumption, leading to rapid battery depletion when the GPS function is continuously active, even if the device's position does not change, causing inconvenience.
Innovation Solution
A method and apparatus for dynamically updating the GPS sampling rate based on the terminal device's current speed, using a determination module to assess speed and an update module to adjust the sampling rate accordingly, with higher speeds corresponding to higher sampling rates and vice versa, thereby reducing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the GPS function is switched on at all times with a fixed sampling rate, then positioning accuracy is maintained, but power consumption increases rapidly
Solution Approach 1:
The patent applies dynamics by transitioning from a fixed sampling rate to a dynamic sampling rate that adjusts based on the terminal device's movement state. The system determines whether the device is stationary or moving and switches between different sampling rates (first sampling rate for stationary, second sampling rate for moving), thereby optimizing power consumption while maintaining positioning accuracy when needed.
Solution Approach 2:
The patent changes the sampling rate parameter based on the terminal device's movement state. By detecting whether the device is stationary or moving, the system adjusts the GPS sampling rate parameter accordingly - using a lower sampling rate when stationary to reduce power consumption and a higher sampling rate when moving to maintain positioning accuracy.
2Productivity
If the GPS function runs continuously with a fixed sampling rate, then positioning data is continuously updated, but battery life decreases rapidly
Solution Approach 1:
The system dynamically adjusts the GPS sampling rate based on the terminal device's movement state. When the device is stationary, it uses a first sampling rate that conserves battery life; when moving, it switches to a second sampling rate that ensures continuous positioning data updates, thus optimizing the balance between productivity and battery duration.
Solution Approach 2:
The patent changes the sampling rate parameter according to the terminal device's state. By detecting movement status, the system adjusts the GPS sampling rate parameter to match actual positioning needs, reducing unnecessary data updates when stationary and ensuring adequate update rates when moving, thereby extending battery life while maintaining positioning functionality.
3Reliability
If the GPS function is kept active with a predetermined sampling rate, then positioning functionality is always available, but the terminal device becomes inconvenient to use due to rapid power exhaustion
Solution Approach 1:
The patent implements dynamic sampling rate adjustment based on the terminal device's movement state. The system determines whether the device is stationary or moving and switches between different sampling rates accordingly, ensuring positioning functionality remains reliable while preventing rapid power exhaustion that would render the device unusable.
Solution Approach 2:
The system changes the GPS sampling rate parameter based on detected movement state. When stationary, it uses a lower sampling rate to conserve power; when moving, it increases the sampling rate to maintain positioning reliability. This dynamic parameter adjustment ensures the device remains usable by preventing rapid battery depletion while maintaining positioning functionality when needed.
Data Source
AI summary
Methods and apparatuses are set forth herein for updating a GPS sampling rate used by a terminal device. The method includes determining a current speed of the terminal device and based on the speed of the terminal device, updating a current GPS sampling rate used by the terminal device.