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Abstract：
Underground displacement monitoring is a crucial means of preventing geological disasters. Compared to existing one-dimensional methods (measuring only horizontal or vertical displacement), the underground displacement three-dimensional measurement method and monitoring system proposed by the author\'s research team can more accurately reflect the internal movement of rock and soil mass, thereby improving the timeliness and accuracy of geological disaster prediction. To ensure the reliability and long-term operation of the underground displacement three-dimensional monitoring system, this article further introduces low-power design theory and Bluetooth wireless transmission technology into the system. By optimizing the power consumption of each sensing unit, the current during the sleep period of a single sensing unit is reduced to only 0.09 mA. Dynamic power management technology is employed to minimize power consumption during each detection cycle. By using Bluetooth wireless transmission technology, the original wired communication of the system is upgraded to a relay-type wireless network communication, effectively solving the problem of the entire sensing array\'s operation being affected when a single sensing unit is damaged. These optimized designs not only maintain monitoring accuracy (horizontal and vertical displacement errors not exceeding 1 mm) but also enable the monitoring system to operate stably for an extended period under harsh weather conditions.
摘要：
地下位移监测是预防地质灾害的重要手段。与现有的一维方法（仅测量水平或垂直位移）相比，作者研究团队提出的地下位移三维测量方法和监测系统能更准确地反映岩土体的内部运动,提高地质灾害预测的时效性和准确性。为确保井下位移三维监测系统的可靠性和长期运行,本文进一步将低功耗设计理论和蓝牙无线传输技术引入到系统中。通过优化每个传感单元的功耗，例如,单个感测单元的睡眠时段期间的电流减小到仅0.09mA。采用动态功率管理技术来最小化每个检测周期期间的功率消耗。通过使用蓝牙无线传输技术,系统的原始有线通信升级为中继型无线网络通信，有效解决了单个传感单元损坏时影响整个传感阵列运行的问题。这些优化的设计不仅保持监测精度（水平和垂直位移误差不超过1毫米），而且使监测系统能够在恶劣天气条件下长时间稳定运行。
