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RETRACTED: Zhang et al. A Novel Framework for Reconstruction and Imaging of Target Scattering Centers via Wide-Angle Incidence in Radar Networks. <i>Sensors</i> 2025, <i>25</i>, 6802.

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Updated: Jun 9, 2025

Evaluating Targeting Accuracy in the Focal Plane for an Ultrasound-guided High-intensity Focused Ultrasound Phased-array System

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Ultrasonic Array-Based Multi-Source Fusion Indoor Positioning Technology.

Cong Li¹, Chenning Zhang², Bing Chen³

¹National Key Laboratory of Science and Technology on Space Microwave, Xi'an 710100, China.

Sensors (Basel, Switzerland)

|October 26, 2024

Summary

This summary is machine-generated.

This study presents a novel indoor localization system using Bluetooth and ultrasonic arrays for precise positioning in underground mines. The system achieves centimeter-level accuracy, enhancing safety for automated mining operations.

Keywords:

GDOP TDoA indoor positioning positioning accuracy ultrasonic

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Published on: May 1, 2018

Area of Science:

Robotics and Automation
Geospatial Technology
Mining Engineering

Background:

Underground mining presents significant safety risks due to environmental hazards.
Lack of reliable positioning systems hinders automation and worker safety in subterranean environments.
Satellite-based navigation is ineffective in underground mines.

Purpose of the Study:

To develop a high-precision indoor localization system for underground mining.
To enhance safety and efficiency in automated mining operations.
To overcome the limitations of satellite-based positioning in subterranean environments.

Main Methods:

Integration of Bluetooth for coarse positioning and ultrasonic arrays for fine calibration.
Implementation of an improved multi-transmitter-multi-receiver algorithm with ultrasonic receiver arrays.
Incorporation of Geometric Dilution of Precision (GDOP) analysis for network optimization.
Integration of an inertial navigation module for tracking object posture and trajectory.

Main Results:

The proposed indoor localization system achieved a positioning accuracy within 10 cm.
The system demonstrated a 20% reduction in error compared to conventional methods.
The developed algorithm enabled accurate localization within complex mining environments.

Conclusions:

The developed high-precision indoor localization system is highly beneficial for underground mining applications.
This technology can significantly improve safety and operational efficiency in automated mining.
The system provides a robust solution for navigation in GPS-denied subterranean environments.