为解决水利自动化监测工程中有线连接布线复杂、可靠性下降、防雷困难的问题,设计了一款体积紧凑、易于组网的无线应变采集装置。该装置通过半桥式电桥和精密仪表运算放大器完成应变信号的调理,采用最新的射频片上系统CC2530完成电压信号的数字化及无线传输。基于TI公司的Z-Stack协议栈构成的无线传感器网络节点具备良好的自组网特性及网络自愈功能,并且通过休眠设置确保了无线传输的低功耗。
Abstract
Fixed wire connection in the automatic monitoring system of water project is featured with complex wire routing, inadequate reliability and has difficulty in thunder protection. In view of this, a volume-compact, easily-connected wireless strain collector is proposed in this paper. The collector modulates the differential strain signal by half-bridge and precise instrumentation amplifier, and employs an up-to-date RF (radio frequency) system (CC2530) on chip to realize digitalization for analog voltage signal and wireless transmission. The wireless sensor nodes based on TI’s Z-stack protocol possess high performances of network self-organization and network self-healing, and support low power consumption in wireless transmission by sleep mode.
关键词
应变采集 /
ZigBee /
无线传感器网络 /
结构健康监测 /
低功耗
Key words
strain collection /
ZigBee /
wireless sensor network /
monitoring of structural health /
low-power dissipation
{{custom_sec.title}}
{{custom_sec.title}}
{{custom_sec.content}}
参考文献
[1] 陈 俊,唐余亮,雷 鹰.基于桥梁结构健康监测的无线传感系统自愈性研究[J].中国新通信,2010, (7):69-71. (CHEN Jun, TANG Yu-liang, LEI Ying. Study on the Self-repair of Bridge Structural Stability Monitoring System Based on Wireless Sensor System[J]. China New Telecommunications, 2010, (7): 69-71. (in Chinese))
[2] 徐春红,吉 林,沈庆宏,等. 基于无线传感器网络的桥梁结构健康监测[J]. 电子测量技术, 2008, 31(11): 95-98. (XU Chun-hong, JI Lin, SHEN Qing-hong, et al. Bridge Structural Health Monitoring System Based on Wireless Sensor Networks[J]. Electronic Measurement Technology, 2008,31(11):95-98. (in Chinese))
[3] KITCHIN C, COUNTS L. 仪表放大器应用工程师指南(第2版)[M]. 冯新强,刘福强,蒋晓颖,等译. 马萨诸塞州:美国模拟器件公司,2004. (KITCHIN C, COUNTS L. A Designer’s Guide to Instrumentation Amplifiers(2nd ed)[M]. Translated by FENG Xin-qiang, LIU Fu-qiang, JIANG Xiao-ying, et al. Massachusetts: Analog Devices, 2004. (in Chinese))
[4] Texas Instruments. ZStack-CC2530-2.3.0-1.4.0 Software[CP/DK]. Texas: Texas Instruments, 2010.
基金
国家科技支撑计划课题(2012BAK10B04);中央级公益性科研院所基金项目(CKSF2013020/GC, CKSF2013022/GC);raybet体育在线
技术开发和成果转化推广项目(CKZS2014007/GC)
PDF(1189 KB)
