Railway slope dangerous rockfall monitoring and alarm system based on fiber grating sensing technology

The utility model provides a railway slope dangerous rockfall monitoring and alarm system based on a fiber grating sensing technology, which comprises on-site monitoring equipment. The on-site monitoring equipment comprises an active net protection area rock mass deformation and looseness monitor and a dangerous rockfall monitor, wherein the active net protection area rock mass deformation and looseness monitor is arranged on a slope along the railway, and a flexible passive net is taken as a monitoring carrier by the dangerous rockfall monitor. The railway slope dangerous rockfall monitoring and alarm system based on the fiber grating sensing technology also comprises monitoring control equipment. The monitoring control equipment is connected with the on-site monitoring equipment; the on-site monitoring equipment comprises a rock mass deformation and looseness monitoring subsystem, a rockfall net breaking monitoring and alarm subsystem and a rockfall state monitoring subsystem; the subsystems are respectively connected with the monitoring control equipment; and the monitoring control equipment comprises a fiber terminal box (9), a network switch (11) and a computer system (12) which are connected in sequence. According to the railway slope dangerous rockfall monitoring and alarm system based on the fiber grating sensing technology, the accuracy of the railway dangerous rockfall monitoring and alarm technology is improved, so that the train operating safety is powerfully guaranteed.