FIELD: fire alarm systems.
SUBSTANCE: signaling device has impulse generator, smoke detector, amplifier and impulse detector connected in series one to another, and threshold device. Smoke detector comprises case, main infrared sensor, light-tight partition and infrared emitter. Infrared emitter input is connected to the first impulse generator output, the second impulse generator output is linked to the second impulse detector input. Signaling device additionally has interference compensator, transformer for converting signal amplitude into pulse length and integrator. Smoke detector additionally has interference sensor made as subsidiary infrared sensor with output connected together with main infrared sensor output to amplifier input through interference compensator. Output of impulse detector is linked to threshold device input through transformer and integrator.
EFFECT: increased operational reliability.
6 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| DEVICE FOR FIRE-ALARM FOR RAILWAY TRANSPORT | 2006 |
|
RU2308091C1 |
| SMOKE DETECTOR | 0 |
|
SU955143A1 |
| SMOKE-SENSITIVE FIRE ALARM | 2001 |
|
RU2210117C2 |
| SMOKE FIRE DETECTOR | 2004 |
|
RU2273886C1 |
| SMOKE SIGNALING DEVICE | 1999 |
|
RU2168767C1 |
| METHOD OF SIGNAL PROCESSING IN OPTIC SMOKE DETECTOR | 2001 |
|
RU2218603C2 |
| SMOKE ALARM | 0 |
|
SU963028A1 |
| SMOKE FIRE ALARM | 2001 |
|
RU2217796C2 |
| SMOKE INDICATOR | 0 |
|
SU991463A1 |
| NOISE GENERATOR | 0 |
|
SU1003298A2 |
