TY - JOUR T1 - Flexible Fire Safety Navigation System Based on Internet of Things in Smart Buildings AU - Sim, Seungmin AU - Yang, Taehun AU - Seo, Dongyeong AU - Kim, Sang-Ha JO - The Journal of Korean Institute of Communications and Information Sciences PY - 2022 DA - 2022/1/15 DO - 10.7840/kics.2022.47.3.438 KW - Internet of things KW - Smart building KW - Wireless sensor network KW - Mobile device KW - Fire evacuation system AB - Indoor fires cause a big loss of property and human life in environments which especially increasingly complex buildings for multiple purposes. Thus, fire prevention systems are built in most of the buildings to protect people and property. Such systems provide information to prevent the spread of fire and induce people to evacuate by managing the information detected from the fire sensor through a central server. However, due to the dependence of the existing systems on the central server, it is not trivial to flexibly respond to the changing situation every moment. Therefore, to solve this problem, we propose an IoT-based elastic fire safety navigation system in smart buildings. The proposed system mitigates a problem by the dependence on a central server of existing systems. For this, a fire safety network monitors fire situations via information exchange between sensors. Through network-based fire information, evacuation paths could be directly provided to the evacuees via their smartphones. The experiments are conducted via a proof-of-concept for the proposed scheme. The results are shown that the proposed scheme is superior to the existing system.