Indoor Emergency Evacuation Service on Autonomous Navigation System using Mobile Phone

Two difficult problems pertain to selection of an evacuation route according to each individual¿s situation. One is constant supervision of the situation of a living space and detection of dangerous situa-tions; the other is detection of residents' respective positions. In this paper, we describe devices and systems for an indoor emergency evacuation using a mobile terminal such as a cell phone or PDA for indoor navigation. The navigation system functions autonomously: the user¿s device receives wireless beacon signals from the surrounding environment and can thereby detect a user¿s position by a mobile terminal independently. In fact, no server-side computation is necessary. Moreover, the system is applicable to an indoor emergency evacuation system using various sensors. The emergency system navigates people to safety in the wake of a disaster. A system must detect all residents' positions and then inform them individu-ally of routes to safety to evacuate all residents to a safe space urgently. We have developed a feasible indoor navigation system that can solve various problems arising in the application layer.