복합항법시스템의 항법정보 기반 열차간 안전여유 계산

초록

Instead of the existing infrastructure-based train location recognition system, the navigation system-based train positioning system mounted on the train does not require infrastructure installation, so it has a great economic advantage. However, in order to guarantee a safety margin between trains based on train location information, the reliability of navigation information must always be satisfied. To this end, the INS/GPS/NHC-based integrated navigation system is designed as a navigation system for trains, and the reliability of navigaion information in the railroad environment is analyzed. And based on this, a method of calculating the safety margin between trains is described. It is verified based on simulation that this method can stably provide safety margin information between trains without infrastructure.