State monitoring device, state monitoring system and state monitoring method

摘要

PROBLEM TO BE SOLVED: To provide a state monitoring device that can calculate an evaluation value for highly accurately judging presence or absence of abnormality of an object.SOLUTION: A data processing device 80 comprises: a peak detection unit 103 that detects a peak from a frequency spectrum; and a map generation unit 104 that generates an abnormality map with respect to the frequency spectrum. The abnormality map includes a frequency of the detected object peak and a frequency of a peak appearing together with an object peak supposing that the peak object is a peak arising from abnormality as an abnormality component. The data processing device 80 comprises: an abnormality peak extraction unit 105 that extracts a peak of a frequency coinciding with any of the abnormality components included in the abnormality map as an abnormality peak; and a first evaluation value calculation unit 106 that calculates a first evaluation value indicative of an occurence level of the abnormality corresponding to the abnormality map on the basis of spectrum density of the abnormality peak.SELECTED DRAWING: Figure 2