Building construction safety early warning protection system based on BIM

The invention discloses a BIM-based building construction safety early-warning protection system, which comprises an information input module, a model establishment module, an information control module, an early-warning alarm module and a patrol monitoring module, the output end of the information input module, the output end of the model establishing module, the output end of the early warning and alarming module and the output end of the patrol monitoring module are all electrically connected with the input end of the information control module. According to the BIM-based building construction safety early-warning protection system, by counting the number of people entering a building construction site and counting the number of taken safety helmets, whether the people wear the safety helmets or not can be monitored and early warned, the people can develop the habit of wearing the safety helmets conveniently, and therefore the people can be better protected through the safety helmets; the region division i