Subway train arrival reminding information transmitting system

The utility model discloses a subway train arrival reminding information transmitting system in the technical field of wireless communication of subway trains. The system includes an arrival remindinginformation transmitting device and a central controller which are connected through Ethernet, wherein the arrival reminding information transmitting device includes a central processing module, a wireless data transmitting module, a D/A conversion module, an Ethernet interface and a power module; the central processing module is respectively connected with the D/A conversion module and the Ethernet interface; the wireless data transmitting module is connected with the D/A conversion module; and the power module is respectively connected with the central processing module, the wireless data transmitting module, the D/A conversion module and the Ethernet interface. The system transmits the arrival information to a portable arrival reminder of passengers through the arrival reminding information transmitting device mounted in a station timely and accurately, and solves the problem that the existing train arrival reminder can not accurately obtain arrival information.