Aleksandr Khatrusov is an undergraduate student in the Department of System Analysis and Control at Empress Catherine II Saint Petersburg Mining University. He is trained in the theory and mathematical methods of systems analysis and control for technical, economic, and social systems. His research focuses on condition monitoring, anomaly detection, and maintenance decision support for complex technical systems under limited observability, data scarcity, and uncertainty. His current work is centered on marine diesel engines and related energy systems, with particular attention to diagnostic architectures, multi-sensor monitoring, vibration-based diagnostics, virtual sensing, and predictive maintenance decision logic.