Method of operation of the onboard train protection device and the vehicle part of the train protection device

Invention relates to the method of operation of the vehicle part of the train security device, in which a signal with information coded by means of modulation is detected by the train's sensing device by inductive coupling from the track part, then the sensed signal is processed and evaluated by the vehicle part of the train security device to determine the transmitted information. From the signal sensed by the vehicle part of the train security device, sidebands are divided into separate branches (1, 2), then the corresponding sideband in the corresponding branch (1, 2) is separately analyzed and decoded to determine the transmitted information in each of the branches (1, 2), the information determined in each branch (1, 2) is compared with each other and the result is determined for decision-making within the train security. The invention also relates to the vehicle part of the train security device containing means for sensing a signal encoded by modulation from track circuits by inductive coupling and further containing 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 its decoding include means (10, 20) for dividing each of the sidebands of the sensed signal into a separate branch (1, 2), while in each branch (1, 2) they are behind the means (10) , 20) for dividing each of the sidebands into a separate branch (1, 2) arranged means (11, 21) for determining the original transmitted information from each sideband of the sensed signal, after which both branches (1, 2) are led to comparison means (3) for determining the resulting originally transmitted information for decision-making within the train security system. Vynález sa týka spôsobu činnosti vozidlovej časti vlakového zabezpečovača, pri ktorom sa snímacím zariadením vlaku indukčnou väzbou sníma z traťovej časti signál s informáciou zakódovanou pomocou modulácie, potom sa snímaný signál vozidlovou časťou vlakového zabezpečovača spracováva a vyhodnocuje na určenie prenášanej informácie. Zo signálu snímaného vozidlovou časťou vlakového zabezpečovača sa vydelia postranné pásma do samostatnej vetvy (1, 2), potom sa príslušné postranné pásmo v príslušnej vetve (1, 2) samostatne analyzuje a dekóduje na určenie prenášanej informácie v každej z vetiev (1, 2), informácie určené v každej vetve (1, 2) sa vzájomne porovnajú a určí sa výsledok na rozhodovanie v rámci vlakového zabezpečovača. Vynález