Electrified Rail Automatic Monitoring System (Track Circuit)

This dissertation to track the automatic monitoring system of research, in the railway sector is often referred to as a track circuit, it is a railway line of two rail as a conductor, both ends to electrical insulation or electrical segmentation, and connected to the transmission and electricity equipment components of the circuit. Its main role is to check whether there is a train track segments occupy, rail is complete, transport electrification traction reflow, transport cab signal and so forth, is to train for automatic control and remote control of one of the underlying device.Track and control system is the foundation of interlocking, but interlocking is to control the train safety run protection. Interlock is automatic monitoring system by rail track relay dry contacts for a variety of control, but if the track automatic monitoring system failure, interlocking cannot.This paper based on the electrified rail automatic monitoring system (track circuit) research, describes existing electrified track circuit of the composition, role, and so on, pointed out that at present the electrification of the rail automatic monitoring system (track circuit) of less than perfect, and the electrification of the rail automatic monitoring system, and through two-port network rail concatenation links to automatic monitoring system for the calculation of the validation, from theoretical calculations and laboratory tests proved the correctness of their views.The system can solve railway safety, for traffic safety and efficiency of travel has a positive effect. The system of national patents, technical review by the Ministry of railways, win multiple awards, has been promoting the use of the road.