Adjustable Positioning Tolerance for Mobile Power Efficiency
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Solution Overview
Problem
Mobile devices face high power consumption when calculating positioning information due to the need for receiving sufficient GPS signals, which can be hindered by location and weather conditions, leading to increased energy usage.
Innovation Solution
A method that adjusts the positioning tolerance based on received signals, increasing it if the deviation exceeds a threshold until it reaches the maximum tolerance, thereby reducing power consumption by optimizing signal reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the mobile device receives sufficient positioning signals from multiple satellites to calculate accurate positioning information, then the positioning precision is improved, but the power consumption increases
Solution Approach 1:
The patent applies dynamics by making the positioning tolerance adjustable rather than fixed. The tolerance is dynamically modified based on the actual positioning deviation detected during signal reception. When deviation is within acceptable ranges, normal tolerance applies; when deviation exceeds thresholds, the tolerance is increased adaptively. This dynamic adjustment allows the system to maintain acceptable positioning accuracy while reducing power consumption by not requiring continuous high-precision signal reception from multiple satellites.
Solution Approach 2:
The patent changes the parameter of positioning tolerance based on operating conditions. By monitoring positioning deviation and adjusting the tolerance parameter upward when deviation exceeds predetermined thresholds, the system adapts to varying signal conditions. This parameter change enables the device to accept lower precision under certain conditions, thereby reducing the need for continuous multi-satellite signal reception and lowering power consumption while maintaining usability.
2Use of energy by moving object
If the mobile device continuously monitors and adjusts positioning tolerance to reduce power consumption, then the power efficiency is improved, but the device complexity increases
Solution Approach 1:
The patent implements feedback by continuously monitoring the positioning deviation between calculated position and reference position, then using this feedback to adjust the positioning tolerance parameter. The system compares actual positioning results against expected values and modifies tolerance levels accordingly. This feedback mechanism automates the balance between precision and power consumption without requiring complex manual intervention or sophisticated algorithms, achieving power efficiency through a relatively simple closed-loop control system.
Data Source
AI summary
A method of processing positioning information in an electronic apparatus having a signal receiving unit, is provided. The method includes receiving at least one positioning signal through the signal receiving unit and obtaining positioning information from the positioning signal. The method further includes selectively adjusting a positioning tolerance according to the positioning information and the positioning tolerance.