Patent ID: 6028514
Filing Date: 2000-02-22
Classification: G08B,Y10S

Abstract:
A system for monitoring a geographic person location, periodically warning a person of emergency situations in the geographic location, and transmitting requests for assistance in emergency situations comprising:(a) a portable warning unit that is carried by the person, the portable warning unit including: (1) a satellite receiver that receives and analyzes communication signals from a satellite positioning system and determines a current geographic location of the person; (2) a receiver circuit that receives broadcasted warning signals defining dangerous situations and geographic situation locations of the situations; (3) a computer controller including a processor and a memory, wherein the processor is configured to monitor and store in the memory data defining the geographic person location as the person moves from location to location over a period of time, and to compare the geographic person location with location information from the received warning signals to determine a degree of danger for the person carrying the portable warning unit; (4) an alarm indicator that indicates when the person is in danger; and (5) a transmission circuit that generates and transmits signals requesting assistance and signals warning of the dangerous situations in a vicinity of the person carrying the portable warning unit along with the current geographic location of the person(b) a command center including: (1) a database computer having a database storage unit and configured to monitor and track an existence and status of emergency situations and locations of emergency response centers and units in a geographic region; (2) a transmitter for broadcasting emergency warning signals corresponding to dangerous situations along with the geographic situation locations; (3) a receiver for receiving emergency assistance requests and signals indicating existence of dangerous situations; and (4) a transmitter for transmitting signals to emergency response units and centers;(c) wherein: (1) the receiving circuit of the portable warning unit carried by the person receives the signals transmitted from the command center that are indicative of a dangerous situation and a geographic situation location; (2) the computer controller of the portable warning unit compares the geographic person location with the geographic situation location indicated in the received signal from the command control center, and using expert system rules determines a degree of danger index for the person carrying the portable warning unit; (3) generates a warning signal for the person carrying the warning unit; and (4) the portable warning generates and transmits signals requesting emergency assistance and warning of emergency situations along with signals indicating a location of the portable warning unit.