APPARATUS FOR DETECTING FAULTS IN STANDBY SYSTEM Russian patent published in 2013 - IPC G05B23/02 G01R31/02 

FIELD: information technology.

SUBSTANCE: invention involves generating signals signalling faults in components of standby radio automation systems and automatic aircraft control systems. The apparatus has an working element, three subtractors, two comparing elements, four threshold devices, two NOT elements, two AND logic elements, an OR logic element and a fault display device. The inputs of the first threshold device and the second threshold device are connected to outputs of the working element. The outputs of the first subtractor are connected to the series-connected third threshold device, first AND logic element, OR element and fault display device. The outputs of the second subtractor are connected to the series-connected fourth threshold device, second AND logic element, OR element and fault display device. The outputs of the first threshold device are connected to the third subtractor and the second input of the fault display device. The outputs of the second threshold device are connected to the second input of the third subtractor and the first NOT element. The first NOT element is connected to the third input of the fault display device. The input of the second NOT element is connected to the output of the third subtractor. The output of the second NOT element is connected to second inputs of the first and second AND logic elements.

EFFECT: high accuracy of detecting faults in a standby system.

2 dwg, 1 tbl