Indoor Terminal Positioning via Spatial Reference Subspaces
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Solution Overview
Problem
Existing GPS systems face challenges in achieving accurate indoor positioning due to signal occlusion by buildings, leading to low positioning accuracy and inadequate user management of mobile terminals.
Innovation Solution
A method involving spatial reference devices that perform communication interactions with terminals using UWB, Bluetooth, or Wi-Fi protocols to determine relative positioning results, enabling accurate identification of target subspaces and facilitating precise terminal management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If GPS is used for terminal positioning, then positioning coverage is wide and positioning accuracy is high in outdoor environments, but positioning accuracy deteriorates significantly in indoor environments due to signal occlusion
Solution Approach 1:
The patent introduces spatial reference devices as intermediary components that establish local coordinate systems and serve as mediators between GPS positioning and indoor terminal positioning. These reference devices receive GPS coordinates and transform them into local subspace coordinate systems, enabling accurate indoor positioning without direct GPS signal reception in the indoor environment.
Solution Approach 2:
The patent divides the indoor space into multiple subspaces, each equipped with its own spatial reference device and local coordinate system. This segmentation allows independent positioning in each subspace, overcoming the signal occlusion problem by creating localized positioning zones that don't rely on direct outdoor GPS signal penetration.
2Measurement precision
If spatial reference devices are deployed in multiple subspaces, then indoor positioning accuracy is improved, but device complexity and system configuration difficulty increase
Solution Approach 1:
The spatial reference devices are designed to perform multiple functions: receiving GPS positioning data, establishing local coordinate systems, communicating with terminals, and managing subspace positioning information. This multi-functionality reduces the need for separate specialized devices, thereby managing system complexity while maintaining positioning accuracy.
Solution Approach 2:
The system implements feedback mechanisms where spatial reference devices continuously exchange positioning information with terminals and update coordinate transformations. This feedback loop enables dynamic adjustment and maintenance of positioning accuracy without requiring complex manual configuration, as the system self-calibrates through ongoing communication.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables accurate indoor positioning of terminals by determining target subspaces, allowing for effective management and control of terminal devices within these spaces.
Implementation Method 1
perform a first communication interaction with a terminal to be located based on a first communication protocol
Implementation Method 2
a first relative positioning result for positioning the terminal is determined based on a result of the first communication interaction
Data Source
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AI summary
The present disclosure relates to a terminal positioning method, apparatus, electronic device, and storage medium. The method is applied to at least one spatial reference device in a space where a terminal is located, wherein at least two subspaces included in the space where the terminal is located are respectively provided with at least one position sensing device, the spatial reference device is a device that satisfies a preset position condition among the position sensing devices, and the method includes: performing (S101, S201) a first communication interaction with a terminal to be located based on a first communication protocol; determining (S 102, S202) a first relative positioning result for positioning the terminal based on a result of the first communication interaction; and determining (S 103, S203) a target subspace where the terminal is located based on the first relative positioning result. The present disclosure can accurately determine the target subspace where the terminal is located based on the communication interaction between the spatial reference device and the terminal, meet the user's indoor positioning requirements for the terminal, and can lay a foundation for subsequent effective management of the terminal.