Study On Beam Bridge Structure Long-term Monitoring System Based On The Internet Of Things

As the important component of the land transportation system,bridges play an important role in the transportation and economic of our country and the livelihood of people.During working time,a bridge constantly influenced by load,environment and nature disaster has to face the threat of collapse accident as its security decreases with time goes by.In order to make sure of the safety,integrity,applicability and durability of bridges,it’s indeed important to make monitoring and security analysis by using of effective and feasible technological means.Based on the purpose,this paper introduces a system for the long-time monitoring of brideg structure,aiming at providing guidance or advice for the restoring work.From the perspective of engineering and technology,this paper gives a comprehensive explanation of the bridge structural health monitoring system,including the structure,data transmission and information processing.(1)Based on the acquisition and display of the structure information,the whole structure of the system is designed,and the related technique is analyzed.(2)To make sure of the accuracy of the structure datas,parameters evaluation and Kalman filter algorithm,whose effectiveness is proved by the the analyzing result,is applied to the data processing.(3)According to the demand of data storage in the system,a generic and extensible database table structure is designed,together with a sort of software based on Microsoft.NET with the application of C#,which is used for data acquisition and parameters setting.(4)An information platform based on message and website technology is built,providing a convenient way to get the real-time and history information of the bridge.The bridge structural health monitoring system proposed in the paper has been kept running for more than half year,which has proved its high stability and effectiveness.