Accurate positioning in railway tunnels is an important means to ensure the safety of train operation,improve emergency response efficiency,and optimize resource scheduling.It is of great significance for ensuring the safety of train operation and improving emergency response efficiency.Based on this,this article introduces the common positioning forms of tunnels,applies the fusion positioning technology based on inertial navigation positioning,land-based PNT,and Beidou differential positioning,and proposes specific implementation methods,hoping to provide reference and inspiration for accurate positioning of railway tunnels and other related work.
关键词
铁路/隧道内定位/融合定位/卫星信号
Key words
railway/positioning inside the tunnel/fusion positioning/satellite signal