I am in research on bluetooth and smartphones technology as essential and quick tools that give information and data on stream and real-time before, during and natural disasters .
There are many methods of use of smartphone in natural disasters.
For example, to get meteorological datum or alert information of evacuation.
These tools are very useful for people who is in situation of disasters or in excepting disasters.
1 To know what situation of oneself in disasters or excepting disasters.
2 To obtain information for decision making of evacuation from disasters. For example, meteorological datum or evacuation rote, safety shelter, etc.
But It need to know one problem that smartphone can’t use in case of serious disaster for a while, because tens of thousands of people use smartphone at one time.