SPECIFICS OF SIMULTANEOUS WORK OF SYSTEMS SCADA AND NMS IN THE RAILWAY INFRASTRUCTURE

Tsvetelina Simeonova

Scientific paper ID 1739 : 2018/3

SPECIFICS OF SIMULTANEOUS WORK OF SYSTEMS SCADA AND NMS IN THE RAILWAY INFRASTRUCTURE

Tsvetelina Simeonova

Technological renewal is necessary on the railway infrastructure due to the ments for higher efficiency in operation. This applies both to the transmission environment and to the relevant transmission systems, as well as to the equipment providing the collection, processing and distribution of information, as well as to the executive devices. The use of modern information and communication technologies has a stimulating impact on the development of associated subsystems, such as train signaling and train control systems and the SCADA, including advanced information and control systems.

An exemplary SCADA scheme (taking into account NMS) was made in order to be tested qualitatively, based on assumed assumptions (on essential communication functions) through a fault tree, and for this purpose in the work being considered the functions of SCADA and NMS (unified telecommunication network management system) and are summarized in terms of their co-operation in railway infrastructure. It can be seen that in more detail the influence of the communication level on the dependability of the SCADA system can be determined and quantified at specific dependability parameters of the components (including their reservation), taking into account the manner of management by

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SCADA NMS жп инфраструктура дърво на отказите.SCADA NMS railway infrastructure fault tree.Tsvetelina Simeonova

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