The invention relates to the technical field of intelligent
construction site safety management and
Internet of Things, and discloses a construction
personnel safety protection system and method for intelligent
construction site safety management, and the
system comprises a data collection module, a four-dimensional space-time
tensor construction module, an incremental
tensor decomposition module, a dynamic risk field modeling module, and a
federated learning parameter updating module. A multistage safety response module; the method comprises the steps of collecting personnel data through
intelligent equipment and constructing a four-dimensional
tensor, extracting core features through dynamic
decomposition to establish a risk propagation model, optimizing parameters in combination with federal learning, and finally triggering three-level response according to a risk field gradient to realize full-process closed-loop management and control of construction safety. According to the method, multi-
modal data are fused to construct a four-dimensional tensor, incremental
decomposition is carried out to extract dynamic features, a
physical field model is coupled to predict risks,
federated learning is used for collaborative privacy optimization, hierarchical response is carried out for closed-loop linkage control, and construction safety and precise protection and efficient emergency are realized.