Pul’tyakov A.V., Skorobogatov M.E. System analysis of sustainability of automatic locomotive signaling systems. Modern technologies. System analysis. Modeling, 2018, Vol. 57, No. 1, pp. 79-89. DOI: 10.26731 / 1813-9108.2018.1 (57). 79-89.
10.26731/1813-9108.2018.1(57).79-89
The article considers operational and technical requirements for codes of automatic locomotive signaling (ALS), based on the system analysis of ALS stability. The analysis of the causes of failures in the ALS system was carried out. The system structure is presented in the form of three functional blocks: a block of transmitting devices, a communication line and a block of receiving locomotive devices. Each block can be a source of internal causes of failures, and the devices can be exposed to external negative effects. The paper discusses the features of receiving locomotive devices that operate under the influence of electromagnetic interference. The author offers organizational and technical measures to ensure the sustainability of the ALS systems. It is shown that the practical implementation and application of the developed device should improve the electromagnetic compatibility of automatic locomotive signaling with reverse traction network. They should provide a powerful suppression of interference from the reverse traction currents that occur on the locomotive receiving coils during the movement of heavy trains. This problem is especially acute in mountain areas and in areas connecting the suction lines of traction substations. It should also provide the suppression of interference from non-uniform magnetic fields of rails laid in the track, in the track gage and at the ends of sleepers. These measures will reduce the intensity of failures in the automatic locomotive signaling and, as a result, improve the security level and uninterrupted movement of trains.
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