Dangerous construction behavior identification method and device based on spatial-temporal characteristics

Abstract

The invention discloses a dangerous construction behavior identification method and device based on space-time characteristics. The dangerous construction behavior identification method comprises thesteps: A) collecting an action video sequence of a constructor, and dividing the action video sequence into a normal action and an illegal action; B) constructing an end-to-end identification network;C) extracting n frames of images in the image sequence, and inputting each frame of image into the same ResNet identification network to obtain output features corresponding to each frame of image; D) performing average pooling operation on F1 to Fn to obtain spatial features Fs of the image sequence; E) taking F1, F2,..., Fn as n time sequences, and inputting the n time sequences into an LSTM network to obtain a time feature Ft of the image sequence; and F) normalizing the Fs and the Ft to form a spatial-temporal feature F: F = Fs + Ft, and then accessing softmax to classify and identify toobtain an action type of the action video sequence. According to the invention, 24-hour all-weather illegal behavior detection of constructors can be realized, so that safety supervision of a construction site is realized, and the construction efficiency and safety are improved.

Description

technical field [0001] The invention relates to the field of safe construction, in particular to a method and device for identifying dangerous construction behaviors based on spatio-temporal features. Background technique [0002] Safe construction is the top priority in electric power construction, and it is very important to take safety measures for on-site construction. Irregular behavior of construction workers is one of the main factors that generate construction safety risks. For example, construction personnel's illegal actions are all factors that generate construction safety risks. The safety management of the existing electric power construction mainly relies on human supervision, which is easy to cause regulatory loopholes, cannot implement safety supervision on the construction site, affects construction efficiency, and has safety problems. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a spatio-tem...

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Problems solved by technology

The safety management of existing electric power construction mainly relies on human supervision, which is easy to cause regulatory loopholes, and cannot implement safety supervision on the construction site, which affects construction efficiency and has safety problems

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