学术论文

      基于MEMS传感器的无线振动测量节点设计

      Design of Wireless Vibration Measurement Node Based on MEMS Sensor

      摘要:
      针对机械设备有线振动监测系统存在监测盲区、部署成本高等不足,现有无线振动节点存在的高频率振动信号拾取困难、通信速率低、硬件性能差等问题进行了应用研究.基于射频和嵌入式技术,采用精密MEMS传感器,设计了基于STM32微控制器的高精度数据采集、无线射频通信、大容量存储及电源调理等硬件电路,并根据测量频率范围设计了2类不同通信速率的振动节点,实现了节点的无线组网通信、TP SN时间同步等软件设计,研制适合机械设备振动监测应用的无线振动测量节点.最后搭建振动对比校准实验台对该节点进行参数标定,经实测节点具有较高测量灵敏度和精度,具有一定应用参考价值.
      Abstract:
      For mechanical equipment cable vibration monitoring system exists a blind spot monitoring , and deployment cost is high, existing wireless vibration node in the presence of high frequency vibration signal is difficult in picking up and communi -cation speed is low,hardware performance is poor ,based on RFID and embedded technology , precision MEMS sensor was de-signed based on STM32 micro controller of high precision data acquisition , wireless radio frequency communication ,large capaci-ty storage and power conditioning and other hardware circuit .And according to the measured frequency range , two different com-munication rate vibration nodes were designed , realizing the software design of wireless network communication , TPSN time syn-chronization and so on .A wireless vibration measurement node which was suitable for vibration monitoring of mechanical equip -ment was developed .Finally, the calibration experiment table was used to calibrate the parameters of this node , which had high sensitivity and precision , and it had certain application reference value .
      Author: WU Yuan-fang CHEN Guang-zhu ZHOU Jiang-wei SONG Yu-fei
      作者单位: 成都理工大学核技术与自动化工程学院,四川成都,610059
      刊 名: 仪表技术与传感器 ISTICPKU
      年,卷(期): 2017, (1)
      分类号: U666.1
      在线出版日期: 2017年3月31日
      基金项目: 地方高校国家级大学生创新创业训练计划项目,四 川 省 教 育厅重点科 研 计 划 项 目,成都理工大学优秀创新团队培育计划KYTD201301 )