Discrete systems for railway electrodynamic centralization installations

In this paper two railway electro-dynamic centralization installations (RECI) supervising system are introduced. Our RECI supervising systems take into account the real state of the installations, irrespective to the logic of the railway station central post of the railway station. The first system consists of a computer, an interface board, and the software programs. The interface has bi-directional data flow between the installation and computer. The computer is connected, through an Intranet network, to the Railway Circulation Regulator (RCR) and to other similar computers allocated in the area of the same RCR. The second system uses programmable logic controllers (PLC) for extending the control to a larger number of RECI units. Further research directions are also mentioned in the paper.