Research and implementation of a track axle counting monitoring system based on fiber optic sensors

At present, most of the monitoring systems for track circuits in China are implemented using electromagnetic communication principles, but they are more susceptible to electromagnetic signal interference than other track circuit monitoring systems. So preventing electromagnetic interference is particularly important. This article studies a track circuit axle counting monitoring system based on fiber optic sensing technology, which realizes the monitoring of whether the track is occupied through this system. The system collects and outputs data through a fiber optic regulator, and the analog-to-digital conversion circuit processes the data transmitted by the fiber optic regulator and the voltage data of the track circuit to output the corresponding wavelength and voltage, which are finally displayed on the terminal display. Finally, through system simulation, verify the purpose that the system aims to achieve.