Open AccessDesign of an automated railway crossing system with Verilog language in CPLD
Author(s) -
Marin Zhilevski,
Vladimir Hristov
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/878/1/012046
Subject(s) - verilog , complex programmable logic device , computer science , level crossing , block diagram , block (permutation group theory) , controller (irrigation) , set (abstract data type) , computer hardware , programmable logic controller , hardware description language , control logic , embedded system , computer architecture , field programmable gate array , programming language , engineering , operating system , electrical engineering , mechanical engineering , agronomy , geometry , mathematics , biology
In this paper the basic requirements for the automatic railways crossing devices are formulated. A block diagram, which consists of elements that make the automatic railways crossing systems are presented and their working principles are discussed. Based on the hardware description language - Verilog, a digital railway crossing control system is designed and is implemented with complex programmable logic device, taking into account the requirements. As an opportunity for practical application the controller CoolRunner II could be used. Simulation results with set input parameters are shown to represent the functionality of the designed system. The results obtained can be used for design, implementation, simulation and development of such types of systems in railway crossing automatics.