When the running speed of the train is measured by the railway wheel sensor speed measurement system,the speed data obtained has a lag,which affects the reliability of the application of railway freight metrology and safety monitoring equipment,and reduces the ability of physical defence and technological defence to control the safety of railway freight transport.Acceleration compensation method and Holt two-parameter exponential smoothing method are integrated,which can be more accurate prediction of the train speed by using the short-term series formed by the historical speed in the process of train runing,to improve the accuracy of prediction results.Introducing the working principle of wheel sensor,on the basis of analyzing the advantages and disadvantages of acceleration compensation prediction method,exponential smoothing method and Holt two-parameter exponential smoothing method in detail,the improvement scheme of the railway wheel sensor speed measurement system based on acceleration compensation and Holt two-parameter exponential smoothing method is proposed.The raw data from Nanning South Station are ex-tracted to verify the improvement scheme for speed measurement system.The results show that the improvement scheme can effectively shorten the hysteresis effect,reduce the error between the measurement data and the actual train speed.
NETL
NSTL
万方数据
