The application provides a
construction worker air fall early warning method,
system, device and medium, the method comprises the following steps: constructing a construction site BIM model and importing it into the Unity3D platform, integrating the construction air fall body model and the dynamic update SWRL
reasoning rule of the
hazard source, forming a construction site
hazard source digital twin base model; real-time collection of positioning data of intelligent wearable devices is stored in the personnel positioning
database, the personnel positioning information is analyzed, the personnel movement style is described, and the personalized safety early warning rule is formulated; real-time
image acquisition detects the protection condition of the target air area, combines the necessity of setting protection of the target air area with the ontology SWRL
reasoning rule, and timely updates the Unity3D model to create a
hazard source trigger area; the distance between the personnel and each hazard source in the model, the current hazard area approach speed and the current hazard area
residence time are calculated in real time, whether the threshold value is reached to trigger the alarm is judged. The application can realize the precise management of the
construction worker air fall early warning.