The invention relates to the technical field of crane
safety monitoring, and discloses a crane hoisting overload state monitoring method and
system based on digital twinning, and the
system comprises a twinning modeling module, a
data acquisition module, a state
simulation module, an overload decision module, and a model optimization and
visualization module. Deep interaction between a physical world and a
virtual space is realized through digital twin bodies, limitation of a traditional monitoring method is broken through, multi-source parameters such as
wind speed, load and
structural stress are fused for the first time, a
dynamic coupling model is constructed,
nonlinear correlation of wind load,
inertia force and
structural deformation is captured, the problem of missed judgment of hidden risks in the traditional method is solved, and the method has a wide application prospect. An accident early warning coverage range is expanded, a deflection calculation model is established based on an improved mechanical theory, high-sensitivity detection of fine deformation of the main beam is realized, compared with a
static model, the magnitude order is improved, structural damage accumulation is effectively prevented, deep correlation mining is performed on historical and real-
time data, and long-time-history advanced early warning of overload risks is realized.