Abstract: The present disclosure relates to a work safety management system using a safety belt unit for high-place work, and safety during working at a high place can be enhanced by determining whether a worker has fastened a seat belt to a safety structure, and the location of the worker, whether the seat belt is fastened and whether the work is on progress can be monitored in real time from a remote location to prevent safety accidents.

Abstract: Disclosed is a safety management system for a worker at a tunnel construction site, the system comprising: a server for controlling the safety management system; routers installed at predetermined intervals at the tunnel construction site; a worker terminal carried by the worker; and at least one information collecting terminal for receiving worker information from the worker terminal and collecting environment information of the tunnel construction site so as to transfer the same to the server, wherein the server determines a location of the worker by using the worker information; divides a map of the tunnel construction site into a plurality of zones and displays the same on a browser; displays the worker information on a zone where the worker is located, among the plurality of zones; and determines at least one danger zone on the basis of the environment information and previously input risk factors.