基于ZigBee桥梁结构健康监测数据采集系统

摘要

Bridge construction and maintenance is an important part of national infrastructure, bridge health monitoring technology ensures effectively the security of operation of the bridge and protect s people's lives and property. Bridge health monitoring system, through monitoring and analysis of the state of the bridge stru cture,releases warning signals in special climate, the complexity of traffic conditions and abnormal structural condition of bridges, and provides a scientific basis for the management, conservation and maintenance of bridges. Currently, most of bridge monitoring systems at home and abroad are cable network system with flaws of the traditional means of health monitoring of bridge,namely, high cost of cable network installation, lack of mobility and flexibility in the network, low intelligence of nodes. To overcome the limitation, this paper designed and implemented a wireless sensor network system based on the Zigbee protocol for bridge health monitoring with advantages of low-cost, high reliability, easy installation and low maintenance cost.%桥梁的建设和维护是国家基础设施建设的重要组成部分，桥梁健康监测技术能有效的保证桥梁的安全运营，保障人民群众的生命财产安全。桥梁健康监测系统通过对桥梁结构状态的监测与分析，为桥梁在特殊气候、复杂交通环境下和桥梁结构状况异常时发布预警信号，为桥梁的管理、养护与维修提供科学的依据。目前国内外桥梁监测系统大多为有线网络系统，存在着网络安装布线成本高昂、设备移动和网络结构灵活性差、节点智能化程度低等问题。为此，本文提出并设计实现了基于ZigBee桥梁结构健康监测数据采集系统。本项目研发一种基于Zigbee桥梁结构健康监测数据采集终端系统，该数据采集终端由传感节点与汇聚网关节点构成。实验证明，相比于传统有线的监测方法和数据采集系统，基于无线传感网络的结构健康监测系统具有负重轻、成本低、易维护和搭建移动方便等优点。