Indoor Positioning Accuracy via Automatic Database Updates
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Solution Overview
Problem
Existing indoor positioning systems using Wi-Fi signals face challenges in maintaining accuracy due to environmental changes, requiring frequent updates of wireless-based location records databases, which is time-consuming and often requires manual site surveys.
Innovation Solution
A system that leverages image capture data and gait data in conjunction with Wi-Fi-based positioning to automatically update the wireless-based location records database, allowing for continuous and accurate indoor positioning without the need for additional equipment or changes to wireless access points.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual site surveys are performed to update wireless-based location records database, then positioning accuracy is maintained, but time consumption and operational complexity increase
Solution Approach 1:
The system enables automatic updating of the wireless-based location records database by having the positioning system itself perform the updates using detected WAP signal strengths and determined locations, eliminating the need for manual site surveys. The system serves itself by automatically capturing and storing new location records when users move through the environment.
Solution Approach 2:
The system continuously monitors WAP signal strengths and user locations, then uses this feedback to automatically update the database. The detected signal strengths are compared against the database, and when new locations are identified, the database is updated with these new records, creating a continuous improvement loop.
2Measurement precision
If manual site surveys are performed to update wireless-based location records database, then positioning accuracy is maintained, but operational complexity increases
Solution Approach 1:
The system automatically performs database updates without requiring manual intervention. The positioning system captures WAP signal strengths, determines user locations, and updates the database autonomously, transforming a complex manual process into an automated self-service operation.
Solution Approach 2:
The patent replaces the mechanical manual process of site surveys with an automated electronic system that uses signal processing and algorithmic location determination. This substitution eliminates the need for physical site survey operations and manual data entry.
3Adaptability or versatility
If Wi-Fi-based positioning is used, then indoor positioning capability is provided, but positioning accuracy deteriorates due to environmental changes
Solution Approach 1:
The system dynamically adapts to environmental changes by continuously updating the wireless-based location records database with new WAP signal strength measurements. As the environment changes, the database is updated to reflect current signal conditions, allowing the system to maintain accuracy despite dynamic environmental factors.
Solution Approach 2:
The system performs preliminary actions by continuously collecting and storing WAP signal strength data at various locations before they are needed for positioning. This proactive data collection ensures that when positioning is required, accurate reference data is already available in the database.
Data Source
AI summary
Methods, systems and computer program products for updating a wireless-based location records database to provide more accurate indoor positioning are provided. Aspects include receiving a wireless-based location records database including a plurality of wireless-based location records. Aspects also include receiving Wi-Fi data and gait data from a user device. Aspects also include determining an approximate location of a user associated with the user device based on the Wi-Fi data and the plurality of wireless-based location records. Aspects also include receiving image capture data from one or more image capture devices viewing the approximate location of the user. Aspects also include identifying the user based on the image capture data and the gait data. In response to determining an accurate location of the user based on the image capture data, aspects include updating the wireless-based location records database.