Transforming Time Petri Nets into Heterogeneous Petri Nets for Hybrid System Monitoring

Increasing industrial system complexity challenges maintenance and health monitoring, that involves both diagnosis and prognosis tasks. While formalisms like Time Petri Nets (TPN) simplify the explicit expression of temporal uncertainties, Heterogeneous Petri Nets (HtPN) offer a formalism for hybrid system health monitoring that lacks explicit time representation. This article demonstrates HtPN's ability to explicitly represent temporal information. Key contributions include a lossless transformation from a subclass of the TPN to a subclass of the HtPN and the provision of a Python code for conversion. This transformation enables simulation, diagnosis, and prognosis with explicit time representation. Copyright (c) 2024 The Authors.