Patent Document ID: 20170188443
Application ID: 15313982
Patent Flag: 0

Claim One:
1. An X-ray tube predictive fault indicator sensing device comprising: a mode setting unit that sets any one of operation modes including a prohibition mode, a learning mode, and a predictive fault indicator sensing mode; a vibration data acquisition unit that acquires vibration data regarding vibration generated from an X-ray tube, and outputs a vibration data acquisition completion notification whenever the number of acquired vibration data items reaches multiples of a predetermined number of data items used for frequency analysis performed once; a frequency analysis unit that performs the frequency analysis on each of vibration data items of the predetermined number acquired by the vibration data acquisition unit; a state data acquisition unit that acquires state data indicating an operation state of the X-ray tube, and synchronizes the acquired state date with a timing at which the vibration data acquisition completion notification output from the vibration data acquisition unit is received; a learning unit that performs cluster analysis by using, as input data, a plurality of learning data items formed of frequency component data obtained through the frequency analysis in the frequency analysis unit and the state data synchronized by the state data acquisition unit in a case where the learning mode is set by the mode setting unit, and generates one or more cluster data items; an abnormality calculation unit that calculates, as abnormality, a minimum distance among distances to surfaces of respective clusters generated by the learning unit from a position indicated by predictive fault indicator sensing target data in a case where the predictive fault indicator sensing mode is set by the mode setting unit, the predictive fault indicator sensing target data being formed of the frequency component data obtained through the frequency analysis in the frequency analysis unit and the state data synchronized by the state data acquisition unit; and a predictive fault indicator determination unit that compares the abnormality calculated by the abnormality calculation unit with a predetermined threshold value so as to determine a predictive fault indicator.