Based On The Analysis Of Time-Series Data Exmination Room Electromarnetic Enviroment

With the development of technology and the improvement of system information, our life and work become more and more convenient. However, a large number of electronic devices increase electromagnetic interference so that electromagnetic environment is worsening. Radio development makes more high-tech exam cheating. In order to monitor the examination room surrounding electromagnetic environment, we need to evaluate and analyze examination hall of the electromagnetic environment.Actually, the calculation and measured data with error can’t be represented by a certain number.So we introduce the interval number. Therefore, when we evaluate the examination electromagnetic environment, the index value will be rendered by interval number.The main research work is as follows:1) The theory of interval evaluation model becomes more perfect by introducing conformity and improving the theory.2) According to the electromagnetic based on the specific examination environment, the complexity of the electromagnetic environment of examination room divides five levels. And we can establish the evaluation model of interval number theory to assess it.3) On the basis of evaluation,we predict and analyze the electromagnetic environment by time-series trend analysis. And we utilize a method of Lagrange interpolation and weighted moving average which use Lagrange forward and after interpolation formula to obtain data and average to fit a function, so that you can predict the complexity of a day you want.