Study On The Optical Fiber Sensing Bridge Healthy Monitoring Data Collection System

The construction and maintaining of huge bridges is one of the key factors of national fundamental instruments construction, each huge bridge is the milestone of the development of civilization, the technique of bridge health monitoring reflects a nation's bridge construction and managements level. Through the monitoring and evaluation for the state of the bridge structure, the bridge healthy monitoring system will send out pre-alert signal when the bridge is under special climate special traffic condition and the serious exceptions of running condition ,and it analyses and evaluates the bridge life and supplies scientific evidence for the maintaining and management policy. Last for the moment, the long-time bridge examination mainly depends on the periodical manual examination, but this measure has some limitations such as untimely inaccurate partial and hard work intension.Aiming at the actuality of the bridge examination, this paper brings forward a measure that uses the specialties of FBGS ,such as real-time long-time and precision, to solve the problems which the manual examination measures cannot solve well, and researches the bridge healthy monitoring system with FBGTS FBGSS and FBGDS. In general, the bridge healthy monitoring system is composed of the data collection system and the structure healthy state and security system. The data collection system is the base of the whole monitoring system.Specially, this paper in detail analyses the data collecting sub-system, and designs the database and the agile and reusable data collection system with the direction of the theory of agile software development and the object oriented software design methods.The main work of this paper:(1) This paper discusses the work theory of the FBGTS FBGSS and FBGDS.(2) Researching and designing the bridge healthy monitoring system with FBGTS FBGSS and FBGDS.(3), According to the characteristics of the bridge healthy monitoring data collection system, such as the multi-type, numerals sensors and flexible user interface, and under the direction of agile development and object oriented software designmethod. This paper briefly introduced the agile development, discussed the designed the database in data collecting system in detail. Study on and implemented the agile and reusable bridge health monitoring data collection system.