FIRE-INTRUDER ALARM SYSTEM Russian patent published in 2006 - IPC G08B17/10 

FIELD: engineering of fire-intruder alarm systems for use in, for example, railroad cars.

SUBSTANCE: to achieve result system has fire receiving-controlling device, and also fire annunciators, while fire receipt-control device includes first microprocessor, block for controlling commutators, first, second transistors of p-n-p type, third, fourth transistors of n-p-n types and first resistor, fire receiving-controlling device and annunciators are connected by two-wire line, into each fire annunciator inserted are second microprocessor, intruder indicators with normally disconnected or normally connected contacts, rectifier, stabilized voltage block, fifth and sixth n-p-n type transistors, second, third and fourth resistors. First and second microprocessors and commutator control block are made appropriately on microcontrollers of certain series and on microchip of certain series.

EFFECT: expanded functional capabilities, decreased mass - dimensional characteristics and costs.

2 dwg