Abstract
In order to explore the influence of temperature on track circuit, a mathematical simulation model of track circuit is established. Then, the influence mechanism of temperature on the key equipment of track circuit is analysed. Finally, the influence on the receiver voltage and the locomotive signal current are computed based on the simulation model.
Highlights
Track circuit is an important infrastructure in railway transportation which is still the dominant way to check the train’s occupancy in high-speed railway
In order to know clearly how the temperature affects the transmission of performance of track circuit signals, a simulation model of the system is established using simulation technology
The influence of temperature on the transmission performance of track circuit is analysed based on the simulation model
Summary
Track circuit is an important infrastructure in railway transportation which is still the dominant way to check the train’s occupancy in high-speed railway. The relay will be deenergized immediately when a train is occupying the track, and signal indicating prohibition into the block will generate. This makes track circuit the only practical system that can detect trains in real time, as well as a kind of broken rail detection system in the meantime. In order to know clearly how the temperature affects the transmission of performance of track circuit signals, a simulation model of the system is established using simulation technology. The influence mechanism of temperature on the key equipment of track circuit is analysed, and the impedance temperature characteristic curve of the device is obtained. The influence of temperature on the transmission performance of track circuit is analysed based on the simulation model
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