METHOD OF PREVENTING FALSE TRIGGERING OF ALARM SIGNAL IN SYSTEM OF SEVERAL SECURITY DETECTORS AND ALARM SYSTEM Russian patent published in 2024 - IPC G08B13/22 

FIELD: technical means of security alarm.

SUBSTANCE: group of inventions relates to a method for preventing false actuation of a security detector and an alarm system. According to the invention, the control panel and the security annunciators are connected by an alarm loop in parallel through resistors having different resistance values, wherein said alarm loop connects the control panel simultaneously with power contacts and relay contacts of security annunciators. At the same time the receiving-control device is made with the possibility of recording the change in the value of current strength consumed by the security detectors, and the value of resistance in the alarm loop, wherein in standby mode resistance value in alarm loop is constant, and blocking the generation of the alarm signal under the condition that the current consumed by the security detectors exceeds the predetermined threshold values and simultaneous change in the resistance value in the alarm loop.

EFFECT: high reliability of generating an alarm signal in an alarm system which includes several security annunciators.

5 cl, 4 dwg