Online Safety Monitoring System for OCS in Urban Rail Transit
The overhead contact system(OCS)is an important part of the power supply system for urban rail transit.An online safety monitoring system for OCS in urban rail transit was developed to minimize the impact of OCS faults on safe operation.Online automatic inspection of OCS equipment is realized by utilizing computer vision and deep learning technology along with the development of related hardware.This inspection covers the conductor height,stagger,wear,suspension components,pantograph-catenary arc,temperature,etc.It provides a digital,visualized,and intelligent technical solution for maintenance and operation,enabling intelligent patrol inspection and equipment status perception.The monitoring system is expounded especially on its architecture,functions,and key technologies.The system's application in Tianjin Metro Line 6 is also elaborated.The application performance indicates that the system features a high defect inspection precision and low defect location errors.It improves OCS fault handling efficiency and emergency response speed,and enables paperless OCS patrol inspection,dynamic inspection,static inspection,and wear inspection operations that require less labor.Additionally,it enables a gradual transition from planned maintenance to condition-based maintenance for OCS.
rail transitOCSonline monitoringsmart operation and maintenancedefect inspectionintelligent analysis
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