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Design and Implementation of PHM System Framework for Unmanned Surface Vehicles

Unmanned surface vehicles (USVs) often execute missions in highly dangerous and complex environments, making it difficult to maintain once critical failure occurs. Therefore, this paper aims to propose a prognostics and health management (PHM) system framework for USVs to satisfy the requirements for real-time fault monitoring, health-state evaluation, and preventive maintenance. A functional structure framework is proposed on the basis of USVs PHM system requirement analysis. The method of implementing the real-time health-state evaluation of the USVs is summarized through the case study of navigation radar. Thereafter, the multi-method modeling is used to simulate the failure of key components of the USVs system, and the mission capability simulation model is constructed, which lays a foundation for the realization of the USVs PHM system.