Mobile Device Location Estimation via Base Station Correlation
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Solution Overview
Problem
Mobile computing devices with limited battery capacity experience reduced availability due to high GPS location detection consumption, and existing methods lack accuracy and efficient battery management.
Innovation Solution
A method that estimates current GPS information using stored time and base station information, allowing location detection without a GPS, by correlating movement flow vectors and updating location information based on signal intensity and similarity analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If GPS is used for location detection, then location accuracy is improved, but battery consumption increases significantly
Solution Approach 1:
The patent introduces base station information as an intermediary to estimate location without using GPS. By correlating base station data with movement flow vectors, the system can infer location information that serves the same functional purpose as GPS but with significantly lower energy consumption, thus resolving the contradiction between location accuracy and battery consumption
Solution Approach 2:
The patent creates a virtual copy of GPS location information by deriving it from base station data and movement patterns. This copied location information is sufficient for many applications and avoids the need to continuously consume GPS energy, thereby maintaining location functionality while reducing battery consumption
2Measurement precision
If GPS module is continuously activated, then location tracking accuracy is improved, but device availability time is reduced
Solution Approach 1:
The patent implements periodic location estimation by updating location information only when necessary based on correlation analysis of base station data. This periodic action maintains location tracking accuracy for practical purposes while avoiding continuous GPS activation, thereby extending device availability time
Solution Approach 2:
The system performs self-service location estimation using internally stored base station information and movement flow vectors. This self-service mechanism eliminates the need for continuous external GPS signals, allowing the device to maintain location functionality autonomously without draining the battery at the rate GPS would require
3Measurement precision
If base station information correlation analysis is performed, then location estimation accuracy is improved, but processing time increases
Solution Approach 1:
The patent performs preliminary action by pre-storing base station information and movement flow vectors in the device memory. This pre-processing allows the system to quickly correlate and estimate location without performing complex calculations in real-time, thus improving accuracy while minimizing processing time delays
Data Source
AI summary
Disclosed herein is a technology for detecting the location of a mobile computing device. A method for detecting the location of a mobile computing device includes the steps of (a) obtaining time, (b) storing the time and location information including GPS information and base station information associated with the time, and (c) obtaining base station information at the present time and estimating current GPS information without using a GPS if a correlation between the stored time and base station information is a specific reference or more.