The mode of operation of the on-board part of the train protection system and the vehicle part of the train protection system for its execution

摘要

In carrying out the method of operation of the vehicle part of the train protection system with the train sensing device by inductive coupling, a signal with information encoded by modulation is sensed from the track part, whereupon the sensed signal is processed and evaluated by the vehicle part of the train protection system to determine the transmitted information. From the signal sensed by the vehicle part of the train protection system, the sidebands are divided into a separate branch (1, 2), whereupon the respective sideband in the respective branch (1, 2) is separately analyzed and decoded to determine the transmitted information in each of the branches (1, 2) , whereupon the information specified in each branch (1, 2) is compared with each other and the result of the train protection decision is determined. The vehicle part of the train protection system for performing the method explained above comprises means for sensing modulation of the encoded signal from track circuits by inductive coupling and further comprising means for processing and analyzing the signal and decoding it to determine the transmitted information. The means for processing and analyzing the sensed signal and decoding it comprises means (10, 20) for dividing each of the sidebands of the sensed signal into a separate branch (1, 2), wherein in each branch (1, 2) there are means (10, 20) ) for dividing each of the side bands into a separate branch (1, 2) by means (11, 21) for determining the original transmitted information from each side band of the sensed signal, after which both branches (1, 2) are guided to the comparing means (3) ) to determine the resulting initially transmitted train control decision information.