An Automatic Warning Method of Falling from Edges and Openings Based on Computer Vision
As a major hazardous source of falling accident from height,edges and openings have al-ways been the focus of safety management on construction sites.However,the complexity of construc-tion sites and a large number of edges and openings make managers difficult to monitor them simulta-neously.Therefore,this study proposed an automatic warning method for falling from edges and open-ings based on computer vision,to assist managers in mastering on-site information and prevent safety accidents in advance.Firstly,videos are captured by cameras installed on tower cranes and used to i-dentify and locate site the workers.Then,the location of hazardous area is determined,and the dis-tance between the workers and the hazardous area is measured automatically.Finally,the workers'safety state is judged and warning information is generated in a hierarchical way according to the es-tablished judgment rules.The proposed method was applied in Terminal 2 of Xinqiao International Airport.The results show that the overall measurement error is within 6％,which can effectively judge worker's safety state and assist in safety management.
safety managementfalling from heightedge and openingsafety warning
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