Rill erosion monitoring method and device for excavation slope of karst mining area and medium

The invention discloses a rill erosion monitoring method and device for a karst mining area excavation side slope and a medium, data acquisition of the karst mining area excavation side slope is carried out through an RTK unmanned aerial vehicle, the RTK unmanned aerial vehicle has the advantages of low cost, no image control, high precision and the like, and accurate image data of the karst mining area excavation side slope can be obtained; meanwhile, by means of image data before and after rainfall, digital image results such as point cloud and digital orthoimages of the karst mining area excavation slope are generated; and finally, obtaining rill erosion parameters of the excavation slope of the karst mining area after rainfall based on the digital image result. Therefore, compared with the traditional technology, the method has the advantages of low workload, high efficiency and high data precision, so that the problem of difficult monitoring caused by complex landforms of the excavation slope of the kars