Security alarm system

Details Security alarm system Security alarm system

G - Physics

08

B

325/6, 340/124.3

G08B 13/22 (2006.01) G08B 23/00 (2006.01) G08B 25/10 (2006.01) G08B 29/04 (2006.01)

Patent

CA 1205138

SECURITY ALARM SYSTEM ABSTRACT OF THE DISCLOSURE A security alarm system comprising a plurality or sensors for detecting emergencies in a predetermined guard area, a transmitter-receiver for converting the emergency data into electric signals and transmitting the electric signals via a radio, a repeater for receiving the electric signals from the transmitter-receiver and transmitting the signal to a security controller, a security controller for setting a guard mode such as "start watch", and "release the watch" and transmitting the emergency and ordinary data to a central station through a transmission line such as a telephone cable or : personal circuit. Moreover said security alarm system is connected to a central station for supervising the predetermined guard area based on the data from this and other security controllers.

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