基于桥梁结构健康监测和无线传感器网络基本概念,设计出用于桥梁结构健康监测的无线传感器节点模型和软硬件结构体系。硬件基于Intel公司研制的Imote2平台,软件采用TinyOS操作系统。最后对基于无线传感器网络的桥梁结构健康监测系统的优势进行了分析与总结。无线传感器网络以其覆盖范围广、测量精度高和分布式、自组织等特点解决了有线系统的一些固有缺点,还可解决结构健康监测系统鲁棒性、自身寿命以及数据泛滥等问题。 Based on the basic concepts of bridge structure health monitoring and wireless sensor network, a wireless sensor node model and software and hardware structure system for the bridge structure health monitoring are designed. Hardware based on the Imote2 platform developed by Intel Corporation, the software uses TinyOS operating system. Finally, the advantages of bridge structure health monitoring system based on wireless sensor network are analyzed and summarized. WSN solves some inherent shortcomings of wired systems due to its wide coverage, high measurement accuracy, distributed and self-organizing features. It also solves the problems of robustness, lifetime and data flooding of structural health monitoring system.