MODELLING OF COMMUNICATION HARDWARE TIME-TRIGGERED ETHERNET USING COLORED PETRI NETS 

Nikishin Kirill Igorevich, postgraduate student, Penza State University, E-mail: kirillnikmail@mail.ru
Konnov Nikolay Nikolayevich, candidate of technical sciences, professor, sub-department of computer science, Penza State University, E-mail: knn@pnzgu.ru 

681.31 

Background. The current trend of the development of automatic control systems involves the use of Ethernet technology to transmit the real-time traffic (isochronous). Guaranteed transmission of hard real-time information with precision of microseconds
is provided by the technology Time-Triggered Ethernet (TTE). The purpose of this study is modelling of telecommunication hardware, implements technology of TTE, which consists of components that are close to reality.
Materials and methods. The implementation of the research objective was achieved by the use of mathematical apparatus of hierarchical time colored Petri nets. The package CPN Tools was used for developing models based on Petri nets.
Results. In detail the article describes the model of frame of TTE and basic TTE components (guardian of the system, queues, channel bandwidth, input/output ports of the switch, etc.). TTE model allows the study of transmission of regular and stochastic traffic in the network.
Conclusions. Modelling Time-Triggered Ethernet allows to explore the technology, to visualize the transmission of frames of real and stochastic traffic in the model, to study the guardian of the model in the case of transmission real-time frame. Additionally, the model will be useful in developing new components, improvements of Time-Triggered Ethernet.

Time-Triggered Ethernet, guardian, real-time frame, acceptance window frame; Petri nets