Browsing by Author "Belev Y."

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    A cyber-physical approach for development of Vacuum Control System on the EBMR plant
    (2023-01-01) Tzakova D.; Ivanova T.; Belev Y.; Batchkova I.
    One of the great challenges of the Fourth Industrial Revolution is the transition to Cyber-Physical Systems, which allows for a high degree of adaptability, autonomy, reliability, usability and security. Cyber-Physical Systems-based control and automation is one of the possible ways to implement a smart factory. The cyber-physical approach, proposed in this paper is based on to the standard for Batch Control IEC-61512 (also known as S88) and the standard for development of distributed process measurement and control systems - IEC-61499. The suggested approach is implemented for development of vacuum control system, which is a part of the electron beam melting and refining plant producing metals and alloys with a high degree of purity.
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    Development of Asset Administration Shell for the components of EBMR plant
    (2023-01-01) Ivanova T.; Gocheva D.; Batchkova I.; Belev Y.
    The use of reference architectures and frameworks is an important prerequisite for dealing with the complexity, diversity and heterogeneity of cyber-physical systems. One of the most popular architectures is RAMI 4.0, suggested by the Industry 4.0 Working Group. According to RAMI 4.0, the Asset Administration Shell (AAS) is a digital copy of assets, an implementation of the digital twin for Industry 4.0. The paper represents a semantic approach for development of AAS, which presents the data model through ontology. The semantic model allows for the presentation of facts, data schemes and meta-data in a unified way, using a global identification scheme. An example from the development of AAS for I4.0 components of an EBMR plant illustrates the approach.