Mobile Device Location via Radiation Source Signal Strength Analysis
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional methods for locating devices indoors face challenges in identifying stationary radiation sources due to the prevalence of mobile hotspots and relocated Wi-Fi routers, requiring extensive site surveys and precise measurements.
Innovation Solution
A system that determines the location of a mobile device by analyzing signal strength from nearby radiation sources, disregarding mobile sources to improve accuracy, using a processor and memory to receive and process information about radiation sources, and calculating a power-weighted centroid for location determination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional site surveys are performed to obtain radiation source information for location determination, then location data can be collected, but mobile hotspots and relocated Wi-Fi routers are difficult to identify and may reduce location accuracy
Solution Approach 1:
The system uses mobile device reports to continuously monitor and update radiation source locations. By analyzing patterns in reported locations over time, the system can identify stationary radiation sources versus mobile ones, improving location accuracy while automating the process
Solution Approach 2:
Mobile devices automatically report their locations and detected radiation sources without requiring manual site surveys. The system self-updates its radiation source database using this crowdsourced data, eliminating the need for complex manual measurement processes
2Measurement precision
If manual site surveys are conducted to map radiation sources, then precise location information can be obtained, but extensive manual labor and time are required
Solution Approach 1:
The system automatically collects radiation source location data from mobile devices as they move through the environment. Mobile devices report their GPS location and detected radiation sources, allowing the system to build and update its radiation source map without any manual surveying
Solution Approach 2:
Data collection occurs continuously as mobile devices naturally move through the space, rather than requiring discrete manual survey events. This ongoing collection process gradually builds comprehensive location data over time without interrupting normal operations
3Productivity
If all detected radiation sources are used for location determination, then more data points are available, but mobile sources can significantly reduce location accuracy
Solution Approach 1:
The system extracts and identifies mobile radiation sources from the complete set of detected sources by analyzing location consistency over time. Once identified, these mobile sources are separated out and excluded from the location determination calculations, leaving only stationary sources to provide accurate location data
Solution Approach 2:
The system changes the weighting parameter for each radiation source based on its determined mobility status. Stationary sources receive full weight in location calculations while mobile sources are given zero or reduced weight, dynamically adjusting the contribution of each source to the final location determination
Data Source
AI summary
The location of a mobile device may be determined based on information that includes the signal strength of nearby radiation sources. The system may disregard information associated with radiation sources that are determined to be mobile.