Objective The challenging construction site environment for oil and gas storage and transportation projects, with high operational risk and complex personnel composition, poses significant difficulties for safety management. However, the integration of visual intelligence technology can provide effective technical support for improving safety control measures.

Methods In this paper, the concept of a full-cycle management mode was proposed at first in response to deficiencies in the application of visual intelligence technology in smart construction sites. Subsequently, the deepened application of visual intelligence technology in smart construction sites was analyzed and discussed around the full-cycle management mode. Furthermore, a "video AI + security" mode was identified for full-cycle management of smart construction sites, taking into account actual site safety management needs. Finally, the future application and development trends of visual intelligence technology in smart construction sites were explored and prospected.

Results A safety management operation guarantee mechanism was implemented through the "video AI + security" mode for the full-cycle management of smart construction sites, enabling total-factor risk identification, all-round event management and thorough safety monitoring, preventing any blind spots or omissions in safety management, and achieving comprehensive, continuous and refined safety management for smart construction sites. Through in-depth analysis of vast video data, a more nuanced understanding of site safety issues and management challenges was gained, establishing a datadriven and data-guided decision-making mechanism, thus further improving the quality and efficiency of site safety management through more intelligent and precise analysis, judgment and scientific decision-making.

Conclusion The "video AI + security" mode for full-cycle management of smart construction sites innovatively applies intelligent monitoring and judgment to all links of site safety management, creating an interrelated and comprehensive safety management cycle. This approach eliminates blind spots in management and realizes comprehensive safety management, providing a reference for technicians in the oil and gas storage and transportation industry to deepen the application of visual intelligence technology in smart construction sites.