Применение методов детектирования отказов для обнаружения информационных атак на систему управления

Обеспечение безопасности систем управления – важная и актуальная проблема. Она состоит в исключении влияния отказов и атак на объекты управления, окружающую среду и др. Большое значение имеет предотвращение критических отказов. Выполнен анализ сходств последствий атак на сложные технические системы и отказов этих систем. Рассмотрено влияние информационных атак на динамику систем автоматического управления. В ходе работы представлена гипотеза о сходстве влияния отказов и информационных атак на сложную техническую систему. Как информационные атаки, так и отказы вызывают отклонения динамики объекта управления. Анализ отклонения динамики объекта управления от нормального режима функционирования позволит детектировать и изолировать информационные атаки и отказы. Проведено сравнение аномальной динамики объектов управления при атаках и отказах устройств, обнаружены зависимости, и сделаны выводы. Проанализировано сходство последствий информационных атак и отказов системы управления, разработана методика идентификации атак на основе методов, разработанных для детектирования отказов. Выполнено компьютерное моделирование влияния информационных атак и отказов на систему управления двигателем постоянного тока, приведены результаты в виде графиков. Результаты моделирования позволяют сделать вывод о применимости алгоритмов детектирования отказов для обнаружения атак. Показано, что отказы и информационные атаки могут привести к опасным последствиям для системы управления. Актуальным представляется исследование пересечения области информационной безопасности и детектирования отказов.

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