The Data Collection And Analyse Of Dam Safety Monitoring

Dam safety monitoring is an important method to Evaluate dam safety and ensure dam operation safety, and data acquisition modules is the basis of data analysis, it provides abundant observations for the analysis of dam operating state. Data analysis was based on observational data, it's an important basis to judge whether the dam is running normal, also it can afford information for decision-making of the dam. Therefore, data acquisition and data analysis of dam safety monitoring system are studied and designed in this paper.(1) It dissertates that the study of the dam safety monitoring technique has practical significance, then describes the development process of data acquisition about dam safety monitoring system internal and international, along with the situation of data analysis, also pointes out the technical trends of dam safety monitoring.(2) It Explains the technical basis of dam safety monitoring, the content and methods of data collection are stress introduced, including deformation and flow, water level, stress, temperature monitoring and so on, briefly introduces the analysis steps and methods of the monitoring data, describes RS-485 bus's features, and analyses the advantages and disadvantages of architectures about centralized, distributed, internet-style.(3) It designes the overall program of dam safety control system, describes the system composition and working principle, and the communication protocol used by the system is explained. Then introduces the implement of data acquisition system for details From hardware and software, and gives out the functional blocks's curcuit of the device hardware, fanally concretes on the analyse the principle of communication.(4)After pretreatment, raw observed data is analyzed by using linear correlation analysis, Least Squares analysis, stepwise regression analysis alt, as well as output results by all kinds of curves, graphs and other forms, reflecting the law of observational data, so then we can speculate that possible future situation of dam.(5) This paper empolders and implemented the data collection and analysis software about dam safety. Detailed introduced the design of the database and communication dynamic link library, gives out the software modules structure, analyzed the design methods and functions implement of each module.This paper is focued on the research and implementation of data collection and analysis of distributed dam safety monitoring system, it's able to reflect the reason and responses which brought changes to dam from a different angle quickly and accurately, and can analyze and evaluate the safe state of dam by qualitative or quantitative in due course, it can meet customer's demand, also can be applied to other water conservancy projects, it has real significance and broad prospects for development.