芜湖长江大桥长期健康监测与报警系统研究

介绍芜湖长江大桥长期健康监测与报警系统的结构体系、总体目标和主要监测内容,同时还介绍该系统的设计方案、总体要求和数据采集、数据库管理与查询的主要功能及安全报警功能。该系统是一套完整的以环境监测、桥梁结构性能监测、列车行车安全监测为主体的由多参数、多种传感器和相关调理仪、多测站及两级计算机局域网构成的综合性大型桥梁结构长期健康监测系统。在监测系统中,采用“小集中”分散数据采集组网方式,通信网络简洁,系统抗干扰能力强、传输速率快、故障率低、检查维修方便,而且运行性能稳定,监测数据结果准确、可靠。全部监测数据实现了边采边显,波形显示形象逼真,刷新速度快,数据库管理科学,查询方便、快捷。

Study on the Long-term Health Monitoring and Alarming System for the Wuhu Yangtze River Bridge

The structural system,overall objective and main monitoring projects of the long-term health monitoring and alarming system for the Wuhu Yangtze River Bridge are introduced.The design plan,general requirements,main functions of data acquisition and database management and query,and safety alarming of the system are also introduced.This system is an integrated longtime health monitoring system for large bridge structures by which the working environment,the structural nature of the bridge and the safety of running trains are monitored.The system is composed of multi-parameters,multiple types of sensors and instruments,numbers of survey stations and a local area network with two grade computers.In this system,the method of small-concentrated scattered-data acquisition is adopted,so that the communication network is very simple,the capability of anti-jamming is strong,the transmission speed is fast,the failure rate is low,and inspection and maintenance,are convenient.Moreover the performance of the system is stable,the monitoring data are accurate and reliable.The real-time acquisitions and real-time displays of all the monitoring data are realized,the data wave forms are displayed vividly,and the data are renovated fleetingly.The database management is scientific and the data inquiry are convenient and fast.