Server Location Database Construction for Indoor Positioning
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Solution Overview
Problem
Server devices are unable to accurately acquire location information for electronic devices, particularly when they are indoors, due to the lack of GPS signals, leading to incomplete or inaccurate location data.
Innovation Solution
A server device equipped with a communication interface, memory, and processor that constructs and updates a database with location information of access points and base stations, using identifiers received from electronic devices to match and update location data, ensuring accurate location services even without direct GPS signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If GPS-based location acquisition is used, then location information can be obtained outdoors, but location information cannot be acquired indoors where GPS signals are absent
Solution Approach 1:
The location determination system is segmented into multiple independent components: GPS satellites for outdoor positioning, access points for Wi-Fi based positioning, and base stations for cellular positioning. Each segment operates independently and can be used based on the environmental context, allowing the system to function reliably both outdoors and indoors.
Solution Approach 2:
The server device is designed with multi-functionality to handle multiple types of location data from different sources (GPS coordinates, access point identifiers, base station identifiers). It can process and integrate various types of location information universally, making it adaptable to different environments including both outdoor GPS-available areas and indoor GPS-denied areas.
2Device complexity
If only GPS location information is collected, then the system is simple, but location information is incomplete or inaccurate in indoor environments
Solution Approach 1:
The server device pre-collects and stores location information from multiple sources including access point identifiers and base station identifiers in addition to GPS data. This preliminary action of gathering diverse location data ensures that when GPS signals are unavailable indoors, the system already has alternative location information ready for immediate use without requiring complex real-time decision-making.
Solution Approach 2:
The server device acts as an intermediary between multiple location data sources (GPS satellites, access points, base stations) and the electronic device. It receives, processes, and integrates location information from these different intermediaries, providing a unified location service that maintains accuracy across various environments without increasing the complexity of individual components.
3Measurement precision
If a database with access point and base station location information is constructed, then accurate indoor location can be provided, but the database construction and maintenance becomes complex
Solution Approach 1:
The database construction process is designed to be self-service oriented, where location information from access points and base stations is automatically collected and stored by the server device without requiring manual intervention. The system autonomously builds and maintains the location database by processing received data, reducing the operational complexity despite the comprehensive nature of the database.
Data Source
AI summary
A server device, which includes a communication interface; a memory; and a processor operatively connected to the communication interface and the memory. The memory is configured to store a first database including identifiers of access points and location information. The processor is configured to: receive, from an external electronic device through the communication interface, an identifier of at least one access point including a first access point collected by the external device and an identifier of a base station, identify location information matching the identifier of the at least one access point and/or the identifier of the base station in the first database, and update location information matching an identifier of the first access point in the first database based on the identified location information.