FIRE EARLY DETECTION METHOD AND DEVICE FOR IMPLEMENTING METHOD Russian patent published in 2008 - IPC G08B17/117 G08B25/10 

FIELD: physics; fire safety.

SUBSTANCE: device for implementing the proposed method of early detection of fire, consists of sensors for concentration of gas components in air, matching amplifiers, analogue-to-digital converters, a microprocessor, light and sound alarm signal generator, light and sound signalling device, generator output, connected to the central fire prevention concentrator, modulation code generator, driving generator, phase manipulator, power amplifier and a transmitting antenna. The device for receiving signals with phase manipulation, put in the fire emergency and/or at the observation control point, has a receiving antenna, high frequency amplifier, heterodyne, mixer, intermediate frequency amplifier, di-phase splitter, two narrow-band filters, phase doubler, 90 phase shifter, phase detector and a recording unit.

EFFECT: wider zone of monitoring fire safety objects and modern transmission of alarm signals from fire safety objects to the fire emergency and to the observation control unit by using a radio channel and complex signals with phase manipulation.

2 cl, 5 dwg