Real-Time Monitoring of Underground Miners’ Status Based on Mine IoT System

Author:

Jiang Yufeng1ORCID,Chen Wei1,Zhang Xue2,Zhang Xuejun1,Yang Guowei1

Affiliation:

1. CCTEG China Coal Research Institute, Beijing 100013, China

2. Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China

Abstract

Real-time monitoring and timely risk warnings for the safety, health, and fatigue of underground miners are essential for establishing intelligent mines, enhancing the safety of production, and safeguarding the well-being of miners. This concerns the collection, transmission, and processing of relevant data. To minimize physical strain on miners, data collection functions are consolidated into two wearable terminals: an electronic bracelet equipped with reliable, low-power components for gathering vital sign data and transmitting them via Bluetooth and a miner lamp that integrates multi-gas detection, personnel positioning, and wireless communication capabilities. The gas sensors within the miner lamp undergo regular calibration to maintain accuracy, while the positioning tag supports round-trip polling to ensure a deviation of less than 0.3 m. Data transmission is facilitated through the co-deployment of 5G communication and UWB positioning base stations, with distributed MIMO networking to minimize frequent cell handovers and ensure a low latency of no more than 20 ms. In terms of data processing, a backpropagation mapping model was developed to estimate miners’ fatigue, leveraging the strong correlation between saliva pH and fatigue, with vital signs as the input layer and saliva pH as the output layer. Furthermore, a unified visualization platform was established to facilitate the management of all miners’ states and enable prompt emergency response. Through these optimizations, a monitoring system for underground miners’ status based on mine IoT technology can be constructed, meeting the requirements of practical operations.

Funder

Key Project of Innovation and Entrepreneurship Fund of Tiandi Science & Technology Co., Ltd.

Publisher

MDPI AG

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