Importance

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Abstract

An extra security alarm system for monitoring conditions within a predetermined monitoring area and alerting persons located throughout the monitoring area, persons in the vicinity and appropriate emergency personnel of an emergency situation. The extra security alarm system includes a plurality of sensors strategically positioned throughout the monitoring area for sensing conditions within the monitoring area. Each of the sensors includes a control unit for analyzing the sensed conditions to determine if an alarm situation exists and generating a sensor signal indicative of the sensed conditions, a transmitter for transmitting the generated signal to the other sensors, a receiver for receiving sensor signals from the other sensors and an alarm for generating an alarm signal upon determining an alarm condition has been sensed by the system. A central monitoring unit is centrally positioned within the monitoring area and includes a receiver for receiving sensor signals from the sensors, a control unit for analyzing the received signals and generating an emergency signal upon determining an emergency situation exists and a transmitter for transmitting the generated emergency signal. A telephone unit for alerting emergency personnel is positioned to receive the emergency signal from the central monitoring unit and a device for alerting persons in a vicinity of the monitoring area upon receipt of said emergency signal from said central monitoring unit is positioned about a periphery of the monitoring area.

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First Claim