Study On Bridge Health Monitoring System Based On Internet Of Things

With the development of computer network technology in recent years,the Internet of things(IOT)which makes people's life convenient and comfortable is very popular.IOT inspires people with IOT thinking to solve the bottleneck and the disadvantages of the traditional problems.Traditionally bridge health was monitored mostly in an artificial way.Because the strong subjectivity,poor integrity,weak effectiveness and high risk of the artificial way,it restricts the further development of bridge health monitoring.The use of IOT technology makes health monitoring system develop in the direction of real-time,automation,integration and network.The establishment of bridge health monitoring system based on IOT on the bridge makes monitoring and assessment of the health state of bridge structure continuous,real-time and on-line to ensure traffic safety and improve the management level of the bridge.This article mainly aims at the shortage of traditional bridge health monitoring.The introduction of IOT thinking puts forward a kind of bridge health monitoring system based on IOT.This article does some research work of the following aspects based on the system summary and analysis on the results of previous studies on the application of networking technology in bridge health monitoring system.(1)Summarizes the architecture of IOT,current development and application in bridge health monitoring system,points out that the present application is still in the exploratory stage,there exists many problems and defects.(2)Investigates the composition and advantages of wireless sensor network(WSN)which is the core of IOT technology,describe the protocol architecture of WSN,points out that the key technology of WSN is self localization technology of sensor node and lists the relevant algorithm of self positioning technology.Self localization technology of sensor node can realize timeliness and effectiveness of the bridge health monitoring.(3)Puts forward the data acquisition and transmission subsystem and lists the various items available for monitoring sensor,The characteristics,contents,methods and significance of traditional bridge health monitoring are introduced in this paper.Selects the ZigBee mode on the collected data acquisition subsystem to transfer data and stores data through the data storage subsystem.(4)Puts forward the data service and control subsystem,points out the composition,main function and main contents of the system,illustrates the auxiliary subsystem for subsequent structural state assessment through the data service process.(5)Puts forward the bridge structure damage early warning and identification system,and lists the damage warning and identification method.(6)Puts forward the bridge condition assessment system,points out the content and the evaluation process of evaluation system,and lists the various methods of assessment of bridge structure,selects the hierarchical synthesis method as the evaluation method in engineering application.(7)Puts forward the single layer B/S architecture and multi-layer B/S architecture of database access,explains what the data management and control software can complete.(8)Through the analysis of Xinbanxi Bridge,builds bridge monitoring system combined with WSN.Sensor and artificial way joint to collect data,and according to these data to assess the state of the bridge,finally the advice of bridge maintenance and strengthening is given.