Research on the service life prediction method of heat meter based on regression analysis
Aiming at the problem that the service life of heat meters can only be roughly judged(through the durability test,the service life is 5 years),a method of predicting the service life of heat meters based on regression analysis is proposed.Grey relational degree analysis was used to determine the degree of correlation between each factor and its service life.The variable relationship between each in-fluencing factor and its service life was obtained in multiple directions by one-element polynomial re-gression analysis and multiple nonlinear regression analysis.The accuracy of the model was verified by residual analysis,goodness of fit test and confidence interval test.The results show that the method based on regression analysis is accurate and reliable,which lays a foundation for its type evaluation and quality analysis.
durability testservice life predictiongrey relational analysisregression analysis
万方数据
维普
