基于无线通信的地下位移三维测量传感器研究与设计  

Research and design of underground displacement 3D measurement sensor based on wireless communication

作　　者：郑国垄 李青 ZHENG Guolong;LI Qing(College of Mechanical and Electrical Engineering,China Jiliang University,Hangzhou 310018,China)

机构地区：[1]中国计量大学机电工程学院,浙江杭州310018

出　　处：《中国测试》2024年第7期91-98,137,共9页China Measurement & Test

基　　金：国家重点研发计划课题(2022YFC3003403);浙江省重点研发计划项目(2021C03016)。

摘　　要：为实现对滑坡的实时监测,研究设计一种基于无线通信的地下位移三维测量传感器。通过结合双互感等值电压原理与BLE星型网络拓扑结构,建立适用于该传感器的接力式无线组网方式。将传感器通过电源线串联成传感阵列并置于模拟山地钻孔的实验平台内进行无线通信实验,结果证明,在一定范围内并充满水的情况下,传感器之间仍旧能进行通信。根据模拟实验以及上位机显示通信结果,表明该无线组网方式适用于地下位移三维测量,并且两个传感器之间的相对水平位移和相对垂直位移的测量误差小于1 mm,满足实际地下位移测量的需要。A wireless communication-based three-dimensional measurement sensor for underground displacement is researched and developed in order to realize real-time monitoring of landslides.The BLE star network architecture and the dual mutual inductance equivalent voltage theory are combined to provide a relayed wireless networking technique that may be used with this sensor.The sensors are placed in an experimental platform that simulates a mountain borehole for wireless communication experiments and connected in series into a sensing array through power lines.The results show that the sensors can still communicate with one another within a specific range and filled with water.The simulation experiment and the communication outcomes shown on the upper computer demonstrate that the wireless networking method is appropriate for the three-dimensional measurement of subsurface displacement,and the measurement error of relative horizontal and relative vertical displacement between two sensors is less than 1 mm,which satisfies the requirements of actual subsurface displacement measurement.

关 键 词：地下位移 无线组网 双互感 

分 类 号：TB9[一般工业技术—计量学] TH763[机械工程—测试计量技术及仪器]