Patent ID: 8624727

Claim:
A personal safety notification system comprising: a plurality of mobile devices in wireless communication with a network; a server, coupled to the network, configured to communicate with each mobile device, wherein the server is coupled to a database comprising personal safety information related to predefined alerts/events, and is coupled to one or more other databases including one or more of geographic, topological, building, structure and area configuration information; and a plurality of nodes configured to provide a perimeter about an area and coupled to the server wherein, when one or more of the plurality of mobile devices enters the area, the corresponding mobile device enters an active sub-network within the personal safety notification system coordinated by the server, wherein the server is further configured to receive alert/event details from each mobile device in the active sub-network, and provide the alert/event details to specific ones of the plurality of mobile devices in the active sub-network in response to the occurrence of a given alert/event, the alert/event details including X-Y-Z coordinate information for aspects of the area within the active sub-network.