With the continuous acceleration of train running speed,the interval between train departures is getting shorter and shorter,and the accurate location information of the train has become a necessary condition to ensure the safety of the train.In this paper,it is considered that under the existing train positioning mode,a combined positioning mode is adopted,and the multi-source information of train position is obtained by using a speed sensor,an acceleration sensor,an existing track circuit and an inquiry/transponder.Then,the multi-source data information obtained is processed through the data fusion method,and finally the method is verified by the simulation software.The simulation results show that the train positioning method of multi-source information fusion adopted in this paper can significantly reduce the positioning error,improve the train positioning accuracy,and improve the train positioning performance from the aspects of accuracy,continuity,maintainability and safety.
train positioningmulti source information fusionsensorspositioning accuracy
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万方数据
