BDApp is a mobile facility management service that uses AI algorithms to collect and analyze signals within a facility through IoT devices, all while keeping the existing infrastructure intact. This allows users to monitor equipment in real time from anywhere using their smartphones.In particular, for fire safety systems, the service immediately notifies users via smartphone when a fire alarm is triggered and offers remote recovery options in case of malfunctions. This innovative service significantly improves response speed, convenience, and safety compared to traditional systems.