Indoor 3D Geolocation Using Transmission Quality Coefficients
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Solution Overview
Problem
Existing methods for geo-localization in indoor environments face challenges due to limitations in accessing signal information, hardware constraints, and the unreliability of GPS signals, leading to inaccurate positioning, especially in heterogeneous and dynamic settings.
Innovation Solution
A method that forms a virtual communication network among transmitting nodes to estimate their positions using transmission quality coefficients and a lookup table, allowing for GPS-free and range-free 3D geolocalization by generating and correlating Quality of Service (QoS) metrics with Signal to Noise Ratio (SNR) to determine distances and positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If GPS-based range-free methods are used for geolocation, then device complexity is reduced, but measurement precision deteriorates in indoor environments where GPS signals are unavailable or unreliable
Solution Approach 1:
The patent replaces GPS satellite-based electromagnetic signal reception with a local wireless communication-based positioning system using transmitting nodes and quality coefficient measurements. This substitution enables indoor positioning by using locally generated radio signals instead of relying on external satellite signals that cannot penetrate buildings effectively.
Solution Approach 2:
The patent introduces transmitting nodes as intermediary elements between the positioning system and the environment. These nodes emit signals that serve as mediators to carry position information, allowing indirect measurement of location through signal quality assessment rather than direct GPS signal reception.
2Measurement precision
If range-based methods using signal strength information are used, then measurement precision improves, but device complexity increases due to hardware requirements and operating system limitations
Solution Approach 1:
The patent enables transmitting nodes to self-organize and self-position without requiring complex centralized control systems. Each node independently measures signal quality coefficients and participates in the positioning process, reducing the need for sophisticated hardware and operating system modifications while maintaining positioning accuracy.
Solution Approach 2:
The patent changes the measurement parameter from raw signal strength to quality coefficients that are processed and normalized. This parameter transformation simplifies the hardware requirements by working with derived metrics rather than requiring direct physical layer signal measurements, reducing device complexity while preserving measurement precision.
3Measurement precision
If traditional geolocation methods are used in heterogeneous environments, then adaptability deteriorates, but measurement precision may be maintained in controlled settings
Solution Approach 1:
The patent creates a universal positioning framework that can operate in diverse environments (indoor, outdoor, heterogeneous networks) using the same basic principles of signal quality measurement and transmission score calculation. The system adapts to different environments by utilizing transmitting nodes deployed in the specific environment rather than requiring environment-specific algorithms.
Solution Approach 2:
The patent implements a dynamic positioning system where transmitting nodes can be added or removed based on environmental requirements, and position estimates are continuously updated as nodes move or are deployed. This dynamic nature allows the system to adapt to heterogeneous environments and mobility scenarios while maintaining positioning accuracy.
Data Source
AI summary
A method is disclosed for estimating a position of a plurality of transmitting nodes. The method comprises installing a telecommunication application in each of the plurality of transmitting nodes; transmitting a plurality of data packets; generating a plurality of transmission quality coefficients using the plurality of data packets; determining a corresponding plurality of transmission scores; estimating a distance between each pair of transmitting nodes, wherein the estimating of the distance between each pair of transmitting nodes is performed using a corresponding transmission score and a lookup table; generating an estimation of a position of the plurality of transmitting nodes using the plurality of estimated distances; providing the generated estimation.