부산대학교 도서관

Safety management of construction projects have a significant impact on the construction project’s schedule and the control carried out on site. Current site safety monitoring methods are highly dependent on manual labor; human errors can occur through missing content. This study aims to resolve these issues by applying machine learning visual detection algorithms to identify unsafe behaviors of workers at construction sites, to enhance external monitoring of workers and to relatively reduce the occurrence of safety accidents. A proposed method combines an object detection algorithm and spatial localization relationship definition. Only the machinery and workers at the construction site need to be accurately detected and the definition of spatial location relationship can be used to identify dangerous behaviors. A monitoring network framework suitable for this study was constructed with the environmental characteristics and image features of a construction site. The machines and workers were detected from construction images based on the Faster R-CNN algorithm for a computer to obtain the visual detection data from the construction site. Three spatial concepts were defined to determine the position relationships of machines and workers in these images. The detected location information of machines and workers at the construction site were combined and presented in a visualized form. Based on the results of this research, it confirmed that the method and performance were suitable for construction site safety management, which is expected to contribute to the speed, level of accuracy and risk warning with the application of automated progress monitoring methods.