WiFi Positioning Access Point Classification
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Solution Overview
Problem
Existing WiFi positioning systems inaccurately determine device location due to reliance on positions of mobile access points, which have moved from their recorded fixed positions, leading to incorrect positioning results.
Innovation Solution
Implementing a device with WiFi positioning logic and monitoring logic to classify access points as mobile or fixed, using channel power indicators and hybrid positioning data to filter out mobile access points, ensuring position determination is based only on fixed access points.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If WiFi positioning systems use all detected access points for position determination, then the positioning coverage is improved, but the positioning accuracy deteriorates due to mobile access points with incorrect recorded positions
Solution Approach 1:
The system extracts and removes mobile access points from the positioning calculation by classifying access points as mobile or fixed based on monitoring their presence over time. Only fixed access points with reliable recorded positions are used for WiFi positioning, while mobile access points are excluded to prevent positioning errors.
Solution Approach 2:
The system performs preliminary classification of access points as mobile or fixed before using them for positioning. This preliminary action involves monitoring access points over a period of time to determine their mobility status, so that only suitable fixed access points are selected for position determination.
2Reliability
If the system classifies and filters access points to improve positioning accuracy, then the positioning reliability is improved, but the system complexity increases
Solution Approach 1:
The system segments access points into distinct categories (mobile and fixed) based on their behavior patterns. This segmentation is achieved by monitoring access point presence over time and classifying them accordingly, allowing the positioning system to selectively use only fixed access points for accurate position determination.
Solution Approach 2:
The system uses the access points' own behavior patterns (whether they are consistently present or moving) to automatically classify them. The monitoring logic observes access point presence over time and autonomously determines their mobility status without external intervention, enabling the system to self-regulate which access points to use for positioning.
Data Source
AI summary
Systems, methods, and other embodiments associated with determining a position of a device are described. According to one embodiment, a method for determining a position of a device is disclosed. The method includes detecting access points and classifying one or more of the access points as being either fixed or mobile. An access point classified as being mobile indicates that the access point is mobile. An access point classified as being fixed indicates that the access point is located at a fixed position. The method also includes determining a position of the device based, at least in part, on one or more channel powers of signals respectively received from one or more access points classified as being fixed. In this manner, the position of the device is not determined based on channel powers of signals received from access points classified as being mobile.