1. Clearance intrusion monitoring: monitoring foreign bodies on the rail surface such as dangerous rocks, falling rocks and mudslides within the railway clearance;
2. Fence (boundary) intrusion monitoring: within the boundary of railway fence, the monitoring targets are people, large livestock climbing and other behaviors;
3, geological disaster monitoring, across the external environment, railway perimeter, operation limit area, monitoring target for dangerous rock falling, debris flow, landslide and other disaster types.
