The invention relates to the technical field of
geological disaster monitoring and early warning, and discloses a Beidou-based
geological disaster intelligent monitoring and early warning method and
system. Beidou high-precision monitoring equipment is deployed by selecting a
geological disaster prone area,
earth surface displacement, settlement and inclination deformation data are collected in real time, and a multi-
modal database is constructed in combination with environmental parameters. And performing alignment and
noise correction on the spatio-temporal data by adopting Kalman filtering and a weighted evidence theory, extracting short-term and long-term deformation characteristics by utilizing a
DBSCAN spatial clustering algorithm, and realizing multi-scale abnormal change
pattern recognition in combination with a
GeoHash grid index. Dimensional differences are eliminated through Z-
score standardization processing, a geological
stability index and change rate model is established, a
causal reasoning framework is further constructed based on a
Bayesian network, and a risk prediction model is trained in combination with a space-time neural network. The
system can dynamically adjust a monitoring period threshold value and automatically trigger graded early warning, and supports hidden danger rectification whole-process tracing and multi-level gridding management. According to the scheme, the limitation of traditional single-source monitoring is broken through, the full-chain prevention and control of geological disasters from deformation
feature extraction, causal relationship modeling to dynamic risk prediction is realized, and the early warning timeliness and accuracy are remarkably improved.