Diagnostic System of Machines

A method of performing technical diagnostics of machines by means of a diagnostic system of machines, the diagnostic system comprising an information interface and a control part, wherein the control part comprises a memory, wherein the diagnostic system of machines further comprises at least a first sensor and a second sensor for placement on a machine selected from a group of vibration sensors, strain sensors, position sensors and distance sensors, in the memory of the control part is further stored a model fault-free state comprising waveforms corresponding to waveforms and quantities measured by the at least first sensor and second sensor in fault-free operation, and further, at least a first model fault state and a second model fault state are stored in the memory of the control part, wherein the first model fault state and the second model fault state comprise waveforms corresponding to waveforms and quantities measured by the at least first sensor and second sensor during a fault in the operation, wherein after measurement, measured waveforms from the at least first sensor and second sensor are sent to the control part, subsequently the measured waveforms from the at least first sensor and second sensor are processed in the control part, by an evaluation process comprising a step of pairing the measured waveforms so that the measured waveforms from individual sensors correspond time-wise and a step of filtering the paired waveforms, wherein waveforms from at least one of the at least first sensor and second sensor are used to set filter parameters for filtering data from at least one other sensor from the at least first sensor and second sensor, wherein the filter parameters comprise a time waveform measured by one of the at least first sensor and second sensor, wherein the time waveform comprises multiple values measured at different times, a filter with these parameters being subsequently applied to a waveform measured by another one of the at least first sensor and second sensor, wherein the processed waveforms are subsequently compared to the model states in the control part, and on the basis of this comparison the control part sends an information to the information interface that the machine is in a fault-free state or in at least one of the model fault states.