DEVICE BALANCED estimation of reliability indices TECHNICAL SYSTEM by combining two samples

摘要

The invention relates to computer technology and can be used for statistical information on product reliability analysis and evaluation.; The purpose of creation of a utility model - to provide a device that allows to automate the statistical estimation of the technical system reliability indices based on the unification of the two samples.; The goal is achieved in that the device through the application control unit, two memory units, two counters, six of addition blocks, six division blocks, two subtraction units, two units squaring, two units of multiplication and organization of connections between them allows to implement the method balanced estimation technical system reliability indices by combining two samples.; Method balanced estimation technical system reliability indices by combining two samples, which is implemented in this device is mathematically described by the formula; where x _i, y _j - two sample elements characterizing parameters of the technical system reliability; x _{i, ..., x n ~ f} (x, θ _1),; y _{1, ..., y m ~ f (} y, θ _2);; n and m - the number of elements of the first and second samples,; γ - proportionality factor,; σ _1, σ ₂ - the mean square deviation of the first and second samples,; Equation (1) describes the principles of operation and is the basis of the device balanced technical system reliability evaluation indices by combining two samples.; The advantage of the device is that the heterogeneity of statistical data on the technical reliability of the system is not critical and can assume a joint sample inhomogeneous reducible to homogeneous. Such evaluation when performing general conditions has all the advantages inherent in all maximum likelihood estimates. Moreover fully utilized all the information contained in the samples, and this rating when the general conditions has all the advantages inherent in the maximum likelihood estimates.