Abstract
The main advantages of microprocessor systems of railway automation and remote control in relation to relay systems, as well as the advantages of using field-programmable gate array (FPGAs) in comparison with microprocessors for solving control system synthesis problems are presented. Examples of the possibility of using FPGAs in devices and systems of railway automation and remote control are given. The possibility of synthesizing a finite state machine on an FPGA that implements route dependencies at an arbitrary station is considered. For this purpose, the logic of the operation of railway automation and remote control devices is described, all possible states of the designed device are identified and the conditions of transitions between them are recorded. A method of synthesis of a finite state machine implementing route dependencies based on building up graphs of typical devices has been formed. The advantage of this approach is the possibility of synthesizing railway automation and remote control devices according to specified logical algorithms, using a modern element base.
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