桥梁监测系统无线索力计的设计及应用  

Design and application of wireless cable tension sensor in the structure monitoring system of bridges

作　　者：汤韬 邓勇军 叶华荣 李亚 李文华 王鹏军[1,2] 邓北星 

机构地区：[1]清华大学电子工程系,北京100084 [2]北京源清慧虹信息科技公司,北京100085 [3]泸州市交通运输局,四川泸州646000

出　　处：《电子技术应用》2017年第12期52-54,58,共4页Application of Electronic Technique

摘　　要：针对桥梁监测系统的索力监测应用场景,设计了一款智能无线索力计。该传感器具有超低功耗、前端智能算法、无线自组织网络等技术特点。提出并实现了嵌入式硬件平台上的索频提取方法,经实验及实际工程检验,该方法测量结果准确。该设计整机可在电池供电环境下实现常年连续工作。此设计有效地解决了拉索监测过程中监测系统建设冗繁、数据分析难度大、系统成本偏高、维护复杂等实际工程问题。A wireless smart sensor is designed for cable tension monitoring system of bridges. The smart sensor possesses several technical features such as ultra-low power consumption, built-in fundamental frequency extraction algorithm and capability of wire-less communication through the self-organized wireless sensor network. The stability and accuracy of our fundamental frequency ex-traction algorithm are verified in both experiments and long-term cable-stayed bridge monitoring applications. Thank to the well-designed hardware and software, the battery-powered sensor is able to keep on working for more than ten years. The wireless smart sensor proposed in this paper can largely cut down the complexity of the cable tension monitoring system construction and reduce the difficulty of data analysis. At the same time, the cost of maintenance can also be greatly depressed.

关 键 词：无线索力传感器 算法设计 结构监测 

分 类 号：TN925[电子电信—通信与信息系统] TU18[电子电信—信息与通信工程]