**Application of a Deterministic Optical Network Model for the Implementation of an Expert System Knowledge Base for Information Transmission Failure Management †**

**Vladislav Kosyanchuk 1, Nikolay Selvesyuk 1, Evgeniy Zybin 1, Valeriy Novikov 1,\*, Valentin Olenev 2, Andrey Solovyov <sup>3</sup> and Mikhail Semyonov <sup>3</sup>**


**Abstract:** This article presents an approach for the construction of an expert system, which helps to make the decisions when parrying failures during information exchange in real-time systems based on a deterministic optical network. The authors analyze the requirements for deterministic data exchange environments and consider the trends for the development of software and hardware for deterministic networks. The main goal of this article is to propose a concept for the implementation of a deterministic control unit based on an all-optical network with spectral division multiplexing. Two main steps for the implementation of such a system are described. The first is the implementation of the DOS protocol stack and its model, which was used in several protocol development stages. This model is a part of a proposed concept for an automation design and development system for information exchanges. The second presented step is the development of an expert decision support system, based on the principles of the supervisory approach. This article presents a neurocontroller, which provides hardware support for the implementation of individual modes of operation of an expert system.

**Keywords:** distributed information computer network architecture; deterministic optical network; network model; dynamic reconfiguration; design automation system; expert system; decision support system; neurocontroller; WDM network; system on a chip
