It is carried out on the basis of a prediction derived from the analysis and evaluation of significant parameters that describe the level of degradation of an object.

Analytical and statistical methods

The predictive maintenance module includes a statistical calculation method based on Weibull analysis. The maintenance management system will calculate the parameters of the Weibull probability distribution and the algorithm will calculate the optimal interval for timely maintenance before malfunction occurs.

Not only that the calculation emphasizes the financial aspect; i.e. the lowest cost of performing the maintenance itself is taken into account (post-malfunction maintenance expenditure vs. preventive maintenance as well as the cost of human resources, materials, etc.). A record of historical data of maintenance performed on the object under consideration is used for the calculation which provides a reliable basis for a realistic result of a properly timed maintenance schedule. Manual data input can also be used for the calculation, where different cost change behaviours can be simulated.