Research on Intelligent Operation and Maintenance System of Urban Rail Transit Vehicles Based on PHM Technology

Based on the current situation of rail operation and maintenance of urban rail transit, combined with the technical system of fault diagnosis and health management (PHM), the operation and maintenance requirements of urban rail transit vehicles are investigated in depth. Due to the feasibility and superiority of PHM technology in rail operation and maintenance management, an intelligent operation and maintenance system for urban rail transit vehicles based on PHM technology is designed. Through PHM technology framework, the key hardware of the system is designed. Based on the hardware system, the vehicle information management module, operation day plan management module, data preprocessing module, health status identification module, operation and maintenance decision module and construction operation management module are established. The results show that the effectiveness of the designed system is proved through functional and performance tests, which provides solutions for the intelligent operation and maintenance of urban rail transit vehicles, and improves the safety and economy of operation and maintenance.