A method for installing a coal mine underground roadway passive metasurface

By establishing a time-series 3D model and dynamically switching between adjustable and fixed metasurfaces, the problem of signal interruption caused by mine car obstruction in underground coal mine communication was solved, achieving balanced and stable signal quality across all scenarios and adapting to different mine cars and environmental changes.

CN121567162BActive Publication Date: 2026-04-17联通(陕西)产业互联网有限公司
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Patent Information

Application Number
CN202610090385.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2026-01-23
Publication Date
2026-04-17
Estimated Expiration
2046-01-23

AI Technical Summary

Technical Problem

In existing underground coal mine communications, signal interruptions are caused by mine cars blocking the signal. The electromagnetic metasurface deployment method, which is fixed to bypass the mine car's travel path, has poor signal quality in conventional scenarios and cannot meet the communication stability requirements of critical services.

Method used

Data on tunnel environment, mine car operation, and signal transmission are collected to establish a time-series 3D model. Conventional main links and time-series alternative links are planned, and adjustable and fixed metasurfaces are used for dynamic switching to adapt to the signal requirements of different scenarios.

Benefits of technology

It achieves balanced signal quality across all scenarios, avoids long-distance transmission and multiple reflection losses by using fixed bypass links, balances signal stability and scenario adaptability, dynamically adapts to different mine truck sizes and environmental changes, and efficiently reuses resources.

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Abstract

The application discloses a kind of coal mine underground roadway passive metasurface and its installation method, it is related to wireless communication technical field, comprising: collection roadway environment static data, mine car operation time series data, signal transmission time series data;Establish roadway time series three-dimensional model;Planning conventional main link and time series alternative link;In roadway middle deployment multiple passive metasurfaces, passive metasurface includes adjustable metasurface and fixed metasurface;From mine production management system obtains mine car real-time data, input mine car real-time data into time series scheduling model, generates scheduling time series table;According to scheduling time series table, in turn control each adjustable metasurface adjustment orientation angle, to switch between conventional main link and time series alternative link.The method of the application does not need to rely on fixed long path, and considers signal stability and scene adaptability.
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