Smart Cloud Evacuation System
Figure 2 gives an overview of the proposed system architecture. The four modules on the top represent information and guidance, and are deployed on smartphones belonging to users in the potential disaster area. The social media system contains the records of users’ multimedia messages posted in socialnetwork service (SNS) platforms, such as Twitter
and Facebook, which is an effective method for collecting a user’s state. SMS and voice messages similarly trace users’ activity. Furthermore, the alarmapp installed in users’ smartphones receives important messages from the cloud system and alerts users when dangerous conditions exist. Other open platforms for emergency networks include some
other important media platforms, such as radio and television broadcast and the Internet.