Keywords: preventive maintenance, railway safety, wireless communication, railway enhanced services, data security, IoT, MQTT.

The operation of rail vehicles causes their components to wear. Each part has its predetermined lifetime, which may be followed by its failure. The effect of prolonged operation of locomotives without replacing endangered components may be their sudden failure. We want to avoid such situations because of the threats they pose. One of the most serious here is the derailment of rolling stock by, for example, a worn-out bogie. To increase this security, we offer an IT system that controls the deadlines for replacing used components in the locomotive. Currently, existing IT systems allow only the signalling of equipment failure. There is no such alert system against the wear of a given part. In this work, we propose the IT system for maintaining locomotive preventive repairs. The responsibilities of this system will include ensuring timely replacement of parts on the locomotive. The system will report the approaching deadline for parts replacement through wireless communication with the server and directly to the driver. For communication with the server, we suggest using the GSM-R system used on railways. These activities are part of the global trend of smart railways.

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