Train tail tracker

Provided is a train tail tracker. A dispatching management information system (DMIS) data analysis subsystem is respectively connected with a DMIS receiving unit, a data control forwarding subsystem and a data contrast subsystem. The data control forwarding subsystem is respectively connected with the DMIS data analysis subsystem and a tracking information sending and receiving subsystem. The tracking information sending and receiving subsystem is respectively connected with a train tail tracking query unit, the data control forwarding subsystem and the data contrast subsystem. The data contrast subsystem is respectively connected with the tracking information sending and receiving subsystem, the DMIS data analysis subsystem, a tracking information display subsystem of a tracking information display unit, a DMIS state information display subsystem and an external interface unit. The train tail tracker can avoid loss of national assets, the working state of a train tail main machine device can be inquired in real time, accidents of train stopping, delay and the like caused by a train tail device are dealt with timely, the rail transport efficiency is improved, and safe stability of equipment running is guaranteed.