Abstract: An early-warning system for disasters includes one sensor, a response personnel database, a position retrieving module for communication devices, a primary control module, and a warning communication module. The sensor is utilized for detecting a disaster hint parameter; the response personnel database records a plurality of response personnel groups, and each response personnel group records at least one communication data of the communication device used by at least one response person; the position retrieving module for communication devices is utilized for detecting the position of each of the communication devices; the primary control module uses the disaster hint parameter to determine the disaster hint worsening level and the disaster treating range so as to have the warning communication module transmitting the response notice data to the communication device.

Abstract: An early-warning system for disasters includes at least one sensor unit, a person-position detection module, a primary control module and a warning module. The system utilizes various sensor units, a Bluetooth communication module and a wireless network communication module and the like person-position detection module to detect and thus generate at least four disaster-sign factors. According to pre-disaster alert classification rules in algorithms tables, a plurality of indexes and a plurality of pre-disaster alert classes can be obtained so as to transmit pre-disaster-management reminder information corresponding to the judged pre-disaster alert class to the warning module, and so people can be alerted verbally, lightly or in a wording manner and thus prepared in time prior to an occurrence of a disaster.