Patent ID: 11972554
Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
Field: Measurement (Instruments)
Classification: CPC G  E | IPC G

Claim 0:
1. A detection device, comprising:
an acquirer that acquires a video of each of a plurality of bearings of a structure including the plurality of bearings, during a period in which a load applied to the structure is changing;
an extractor that extracts, for each of the plurality of bearings, (i) k displacements corresponding to k degrees of freedom of the bearing based on the video, and (ii) a dynamic feature of the bearing based on the k displacements, where k is an integer greater than or equal to two; and
an identifier that identifies, in the period and among the plurality of bearings, a bearing whose dynamic feature fails to match a dynamic feature of one or more other bearings of the plurality of bearings.