为了实现井下便携式实时监测人员的生命体征，及时安排救援，设计了一款矿用本安型腕表。以NRF52840低功耗蓝牙芯片作为控制核心，采用GH3020健康监测IC+MPU6050加速度传感器+NST112x温度传感器作为采集单元，并结合本质安全技术的电源电路设计，实现生命体征数据采集；采用BLE/Wi-Fi结合高精度RSSI技术实现设备位置信号的快速探测；采用Cortex-M4F内核提供高效数据计算，对数据进行压缩、存储和远传。矿用本安型腕表具有集成度高、稳定性好、精度高、低功耗的特点，支持TCP/IP、ANT、Thread无线通信等协议；设备采集数据精度、整机功耗、可持续工作时长等指标均达到产品化标准，并实时显示在PC端，为矿工生命健康提供重要保障。

In order to realize the underground portable real-time monitoring of the vital signs of personnel and timely arrange rescue, a mine intrinsically safe watch was designed. Take NRF52840 low energy bluetooth chip as the control core, using GH3020 health monitoring IC + MPU6050 acceleration sensor + NST112x temperature sensor as the acquisition unit, combined with the power circuit design, to achieve vital signs data acquisition, BLE/Wi-Fi combined with high-precision RSSI technology to realize the rapid detection of device location signals. The Cortex-M4F core is used to provide efficient data calculation, compression, storage and remote transmission of data. The watch has the characteristics of high integration, good stability, high precision and low power consumption, and supports TCP/IP, ANT, Thread wireless communication and other protocols. After testing, the data acquisition accuracy, power consumption, sustainable working time and other indicators of the equipment have reached the productization standard, and are displayed on the PC in real time, to provide important protection for the life and health of miners.