Patent ID: 11946906
Assignee: KABUSHIKI KAISHA TOSHIBA
Field: Measurement (Instruments)
Classification: CPC G  B | IPC B  G

Claim 0:
1. A damaged region determination system, comprising:
a plurality of sensors configured to detect elastic waves generated in a target object related to a railway which is a determination target of a damaged region;
a position locator configured to locate positions of sources of a plurality of elastic waves based on the plurality of elastic waves detected by each of the plurality of sensors;
a determiner configured to determine the damaged region in the target object based on the positions of the sources of the plurality of elastic waves; and
a signal processor configured to extract feature values of the plurality of elastic waves detected by each of the plurality of sensors, wherein
the position locator locates the positions of the sources of the plurality of elastic waves based on the feature values of the elastic waves, and derives a source distribution representing the located positions of the sources of the plurality of elastic waves,
the determiner determines the damaged region in the target object using the source distribution, and
the determiner determines an area having a density equal to or higher than a threshold value in the source distribution as the damaged region.