On the basis of clarifying the current situation of dam safety monitoring and mathematical model analysis on the observed data in our country, combined with the actual design to Cetian dam safety monitoring system, the inner principles and methods of the automatic system software are systematically discussed in the paper.Firstly, the selection of instruments types and make-ways of network be introduced in this paper, then the structure and function of the monitoring system software that is divided two parts of data acquisition and off-line analysis is designed separately. At last, according to the theory of data error, data treatment, safety monitoring, and the demand of the data treatment standards for earth and rock-filled dam safety monitoring, the software is programmed.It is an important quantifiable method to analyze the operation properties of dam by building up the mathematical model of long data series, the special description is given on seepage monitoring model in this paper:On the choice of the affected factors, the corresponding factors are known and the formula are deduced by means with the analysis to the seepage theory; on the calculation of the model, a new stepwise regression method is adopted in replace of the multi-factor regression method, and the optimized factors are chosen automatically; on the realization of the final monitoring model, an artificial interference and regulation theory arepresented to further mend the defects of stepwise regression method, by the calculation of measured data, the result of stepwise regression seepage monitoring model and gray dynamic G(1,1) model are compared with each other. |