ALARM DEVICE Russian patent published in 2008 - IPC H01H85/30 

FIELD: physics.

SUBSTANCE: alarm device is related to the field of electronics and intended for alarm breaking of different sections of electric circuit. In this device compromise is achieved between serial display of separate faulty sections (fuses), by one in every moment of time and all simultaneously in case of total failure. Maximum number of simultaneously displayed sections is determined on the basis of separate system peculiarities, namely, reliability characteristics, frequency of failures or breaks of circuit in case of security alarm, requirements for solution making efficiency, ergonomics, design of control panel, etc. Number of simultaneously displayed faulty sections, which may be displayed to operator for survey, is equal to that of used indicators. If number of faulty sections exceeds that of indicators, then numbers on indicators are serially displaced in the form of creeping line.

EFFECT: expansion of functional resources of alarm device.

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