The application provides a
construction worker unsafe behavior intelligent identification method and
early warning system, the method comprises the following steps: obtaining a to-be-detected image of a construction site; inputting the to-be-detected image into a
construction worker unsafe behavior identification model to obtain an unsafe behavior identification result of a
construction worker; wherein the unsafe behavior at least includes an unworn state, a wrong wearing state or a blocked state of
personal protective equipment; and the construction worker unsafe behavior identification model is a neural
network model for target detection. The detection accuracy is significantly improved, and the fine-grained identification capability is enhanced. Since a learnable position coding component is introduced into the
backbone network, the model can explicitly model the spatial position relationship of the feature map, enhance the spatial position
perception capability of the personnel (especially small targets and blocked targets) in the construction scene under complex background interference, solve the problem that the traditional convolutional network is not sensitive to absolute position information, and improve the
feature extraction accuracy in a complex background.