Rockfall monitoring and early warning system and rockfall monitoring and early warning method

The invention relates to the technical field of monitoring and early warning and discloses a rockfall monitoring and early warning system and a rockfall monitoring and early warning method. The rockfall monitoring and early warning system comprises dangerous rock monitoring equipment, an image acquisition and analysis device and an alarming device. The dangerous rock monitoring equipment is arranged on a dangerous rock and used for monitoring sudden deformation and slow deformation of the upper portion of the dangerous rock; the image acquisition and analysis device is used for remotely acquiring integral deformation conditions of the whole dangerous rock, analyzing slow deformation numerical values and sending the slow deformation numerical values to a cloud server; the alarming device is used for receiving alarm orders of the cloud server and sending alarm signals. The rockfall monitoring and early warning system and the rockfall monitoring and early warning method have the advantages that by means of dual monitoring of a key area of the dangerous rock, early warning can be given as long as one of devices sends back images of sudden deformation, and then workers can check whether rockfall conditions exist or not, so that monitoring accuracy can be improved; since the dangerous rock deformation monitoring equipment is mounted on the upper portion of the dangerous rock, installation and construction are facilitated; by monitoring and analysis of slow deformation of the dangerous rock and estimation of the deformation numerical values, the workers can notice slow deformation conditions in advance.