基于Web 的桥梁健康监测系统设计与实现

在桥梁健康监测的建设中,需要布置多种终端传感器设备,例如温湿度、应变传感器等。但是在现有的桥梁监测系统中,其传感器都是由多个厂商部署,其数据格式、接口不一,导致数据相对孤立。基于计算机技术,将多种协议转换成以太网,实现一种多传感器数据融合的桥梁健康监测系统。该系统具有传感器设备的注册修改删除,用户注册修改删除,传感器监测数据实时显示存储,桥梁结构安全的评估预警等功能。传感器通过串口、模拟信号、光纤光栅信号等连接至下位机,下位机通过单片机A/D采样以及解调仪等将多种信号转换为数字信号通过串口传至上位机,上位机采用ARM Cortex-A9运行主程序,实现多线程网络通信,通过协议转换网关后,经光纤发送至Web服务器以及Oracle数据库进行展示和存储。

Design and Implementation of Bridge Health Monitoring System Based on Web

In the construction of bridge health monitoring,a variety of terminal sensor devices,such as temperature,humidity and strain sensors,need to be arranged.However,in the existing bridge monitoring system,its sensors are deployed by many manufacturers,whose data formats and interfaces are different,resulting in relatively isolated data.Based on computer technology,a bridge health monitoring system based on multi-sensor data fusion is realized by converting various protocols into Ethernet.The system has the functions of registration modification and deletion of sensor equipment,user registration modification and deletion,real-time display and storage of sensor monitoring data,evaluation and early warning of bridge structure safety,etc.Sensors are connected to the lower computer through serial port,analog signal,fiber Bragg grating signal and so on.The lower computer converts many kinds of signals into digital signals through microcontroller A/D sampling and demodulator,and transmits them to the upper computer through serial port.The upper computer uses ARM Cortex-A9 to run the main program to realize multi-threaded network communication.After protocol conversion gateway,the lower computer transmits them to Web server and Oracle number through optical fiber.The database is displayed and stored.