FIELD: physics, computer engineering.
SUBSTANCE: invention relates to monitoring and diagnosis of automatic control systems and components thereof. Disclosed is a method of searching for a faulty unit in a continuous dynamic system which, unlike the prototype, includes determining the number of groups of dynamic units N=2 such that each group has one input and one output signal; assigning two control points for measuring output signals of each group; creating models with test deviations for two control points by inputting test deviation of parameters into one of the units of each group; calculating diagnostic features of the presence of a faulty group of units; based on the minimum value of the diagnostic feature, determining a defective group of units; splitting the defective group into two sub-groups by assigning a control point at the output of one of the dynamic units of the defective group such that each new sub-group contains only one input and one output; deleting the control point at the output of the group of units that not faulty; fixing control points at the outputs of sub-groups of units; determining models with test deviations for each sub-group; calculating diagnostic features for each sub-group of units; determining a defective sub-group of units based on the minimum diagnostic feature; continuing the procedures of splitting the defective sub-group of units and determining test deviations until only one unit contains a defective sub-group, said unit then being considered faulty.
EFFECT: reduced hardware and computational costs associated with reduction of the number of measured signals of the object being diagnosed.
2 dwg
