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This work presents an Internet of Things (IoT) monitoring system based on a star-configured wearable wireless sensor network in mining environments. The system monitors the health of mining workers (blood oxygen concentration, heart rate, and body temperature) and environmental parameters (CO \(_2\) levels, temperature, and humidity) in real time. The data collected are transmitted through Bluetooth Low Energy (BLE) and Wi-Fi technologies to a server for monitoring and warning purposes. The proposed system, utilizing wearable sensors, has been tested in a mining environment, achieving an average packet latency of 0.4 seconds and a packet delivery rate of 99.6%. The sensors and gateway form a highly flexible star network, allowing for the addition or removal of sensors in approximately 0.3 seconds. Furthermore, with the MCU’s transmit power set to 0 dBm, the communication range between two BLE wearable sensors extends up to 100 meters in free space and 20 meters in mining environments with obstacles.

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An IoT-Based Monitoring System for Worker Safety and Healthcare in Mining Environments

  • 会议论文

  • 发表日期：

    2026年

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  • Hong Cong Nguyen,
  • Trong Hieu Dam,
  • Thanh Long Cung,
  • Minh Thuy Le,
  • Quoc Cuong Nguyen

摘要

This work presents an Internet of Things (IoT) monitoring system based on a star-configured wearable wireless sensor network in mining environments. The system monitors the health of mining workers (blood oxygen concentration, heart rate, and body temperature) and environmental parameters (CO \(_2\) levels, temperature, and humidity) in real time. The data collected are transmitted through Bluetooth Low Energy (BLE) and Wi-Fi technologies to a server for monitoring and warning purposes. The proposed system, utilizing wearable sensors, has been tested in a mining environment, achieving an average packet latency of 0.4 seconds and a packet delivery rate of 99.6%. The sensors and gateway form a highly flexible star network, allowing for the addition or removal of sensors in approximately 0.3 seconds. Furthermore, with the MCU’s transmit power set to 0 dBm, the communication range between two BLE wearable sensors extends up to 100 meters in free space and 20 meters in mining environments with obstacles.