Wireless Node Triangulation for Indoor Positioning
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing location determination techniques for wireless mobile devices are limited in precision and versatility, particularly in indoor environments and three-dimensional space, and are vulnerable to satellite attacks.
Innovation Solution
An apparatus comprising an input and processors that receive known locations of wireless mobile nodes over a wireless link, determining geometric features to calculate the location of the apparatus using triangulation or trilateration, enabling precise location determination in two or three dimensions, and applicable to various devices within structures or outdoors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If GPS satellites are used to determine location, then location determination is possible outdoors, but the system is vulnerable to satellite attacks and cannot determine location inside structures
Solution Approach 1:
The patent introduces wireless mobile nodes as intermediary elements between the unknown node and the location determination process. These nodes relay position information and geometric features, enabling location determination in environments where direct satellite reception is unavailable, thus resolving the vulnerability to satellite attacks and indoor coverage limitations
Solution Approach 2:
The patent transitions from traditional two-dimensional GPS positioning to three-dimensional location determination by incorporating elevation data and utilizing spatial geometric relationships among multiple wireless nodes. This dimensional expansion enables accurate positioning both indoors and outdoors, overcoming the environmental limitations of satellite-based systems
2Measurement precision
If traditional positioning methods are used, then location can be determined outdoors, but precision is limited and indoor positioning is not feasible
Solution Approach 1:
The patent combines multiple location determination approaches by integrating geometric feature extraction, triangulation calculations, and multi-node collaboration. This merging of techniques achieves high-precision location determination while extending coverage to both indoor and outdoor environments, resolving the contradiction between precision and environmental adaptability
Solution Approach 2:
The wireless mobile node system performs multiple functions: it acts as a positioning reference, a geometric feature calculator, and a location determination engine. This multi-functionality enables the same system to achieve high precision across diverse environments including indoors and outdoors, eliminating the need for environment-specific positioning solutions
Data Source
AI summary
In certain embodiments, an apparatus comprises an input and one or more processors. The input receives known locations of wireless mobile nodes over a wireless link. The one or more processors determine geometric features associated with the locations, and calculate an apparatus location of the apparatus from the known locations and the geometric features.