Design of a Health Management System for the ZPW2000A Track Circuit Based on Outdoor Trackside Acquisition Units

With the railway signaling infrastructure to ensure trains’ safe operation, large numbers of track circuits are widely distributed along railway lines. Track circuits’ high failure rate and the limitation of monitoring track circuits indoor parameters lead to its lower maintenance efficiency. According to this situation, health management system with ZPW2000A track circuits monitors the electrical characteristics of outdoor trackside equipment by outdoor trackside acquisition units, and applies the thought of fault recorder to achieve storage of mass data, which sends effective data to upper centralized management computer by CAN bus. To realize the valid health management of track circuits, a mathematical model of maintenance priority is constructed by analyzing factors affecting the maintenance and combining track circuits real-time fault diagnosis and fault warning results, which formulates intelligent maintenance plan to improve equipment maintenance efficiency and reduce security risks and maintenance costs.