The Catenary Ground Monitoring Device (6C) is a fixed monitoring device installed at specific locations along the line (such as registration points, anchor section joints, turnouts, tunnel entrances/exits, station throat areas, strong wind sections, etc.). It monitors catenary parameters including vibration characteristics, conductor temperature, tension compensator displacement, insulation status, and the catenary condition at specific locations. Monitoring data is transmitted in real time via wired or wireless means, enabling abnormality detection and timely alarms.