METHOD FOR DETECTION A POSITION OF A RAILWAY CAR

摘要

PURPOSE: A method for detection a position of a railroad car is provided to improve the reliability of detecting the position of a railroad car by intercepting the malfunction of a track circuit relay. CONSTITUTION: In a method for detection a position of a railroad car, a return current applied to the track is measured(S10). A user frequency component is extracted from the return current The commercial frequency component is compared with a predetermined reference value which is stored in a memory(S30) If commercial frequency component is over a reference value, a protection algorithm which is stored in the memory is executed(S40). It is determined whether the railroad car is located in a track according to the operation of a track circuit relay.